Sedimentary Data Collected in April 2013 From Dauphin Island and salt marshes of coastal Alabama

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What does this data set describe?

1. How might this data set be cited?
   Marot, Marci E., Kelso, Kyle W., Osterman, Lisa E., DeWitt, Nancy T., and Smith, Christopher G., 20180713, Sedimentary Data Collected in April 2013 From Dauphin Island and salt marshes of coastal Alabama: U.S. Geological Survey Data Release doi:10.5066/F7H70DSZ, U.S. Geological Survey, St. Petersburg, FL.

   Online Links:

   • https://doi.org/10.5066/F7H70DSZ

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -88.43110
   East_Bounding_Coordinate: -87.91820
   North_Bounding_Coordinate: 30.82150
   South_Bounding_Coordinate: 30.24350
   

3. What does it look like?
4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 14-Apr-2013

   Ending_Date: 19-Apr-2013

   Currentness_Reference:

   Ground condition

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: Multimedia presentation
   

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?
      
   2. What coordinate system is used to represent geographic features?
      
7. How does the data set describe geographic features?

   13BIM01_SiteInformation.xlsx

   Microsoft Excel workbook defining the field sampling dates, site locations, elevations, vegetation, core lengths and compaction, and water quality parameters for the marsh push cores; field sampling dates, site locations, elevations, and core lengths and compaction for the vibracores; and the field sampling dates, site locations, elevations, and vegetation for surface sediment samples collected in this study (USGS FAN 13BIM01). Push core, vibracore, and surface sample site information is provided on its own tab. (Source: USGS)

   13BIM01_SiteInformation.csv

   Comma-separated values text file defining the field sampling dates, site locations, elevations, vegetation, core lengths and compaction, and water quality parameters for the marsh push cores; field sampling dates, site locations, elevations, and core lengths and compaction for the vibracores; and the field sampling dates, site locations, elevations, and vegetation for surface sediment samples collected in this study (USGS FAN 13BIM01). (Source: USGS)

   Site ID

   Site identifier assigned by the USGS scientist (Source: USGS) Character string

   Date Collected

   Date identifier (Source: USGS)

   Range of values
   Minimum:	04/14/2013
   Maximum:	04/19/2013
   Units:	mm/dd/yyyy
   Resolution:	1 day

   Latitude (NAD83)

   Latitude of site location, in decimal degrees, relative to the North American Datum of 1983 (Source: USGS)

   Range of values
   Minimum:	30.24360
   Maximum:	30.82143
   Units:	Decimal degrees
   Resolution:	0.00001

   Longitude (NAD83)

   Longitude of site location, in decimal degrees, relative to the North American Datum of 1983 (Source: USGS)

   Range of values
   Minimum:	-87.91828
   Maximum:	-88.43104
   Units:	Decimal degrees
   Resolution:	0.00001

   Orthometric Height (m, NAVD88 12A)

   Orthometric height of site location, in meters, relative to the North American Vertical Datum of 1988 using the Geoid 12A model (Source: USGS)

   Range of values
   Minimum:	0.122
   Maximum:	3.104
   Units:	Meters
   Resolution:	0.001

   Dominant Vegetation

   Dominant vegetation present at the coring site (Source: USGS) Character string

   Push Core Recovered Length (cm)

   Field measurement of the recovered push core length, in centimeters (Source: USGS)

   Range of values
   Minimum:	40
   Maximum:	76
   Units:	Centimeters
   Resolution:	0.1

   Push Core Compaction During Coring (cm)

   Field measurement of sediment compaction due to coring, in centimeters (Source: USGS)

   Range of values
   Minimum:	0
   Maximum:	3
   Units:	Centimeters
   Resolution:	1

   Total Auger Core Length (cm)

   Total depth of sediment recovered in combined peat auger segments, in centimeters (Source: USGS)

   Range of values
   Minimum:	50
   Maximum:	500
   Units:	Centimeters
   Resolution:	1

   Vibracore Recovered Length (cm)

   Field measurement of the recovered vibracore length, in centimeters (Source: USGS)

   Range of values
   Minimum:	95
   Maximum:	363
   Units:	Centimeters
   Resolution:	0.1

   Vibracore Compaction During Coring (cm)

   Field measurement of sediment compaction due to coring, in centimeters (Source: USGS)

   Range of values
   Minimum:	11
   Maximum:	155
   Units:	Centimeters
   Resolution:	0.1

   Temperature (°C)

   Water temperature in degrees Celsius at each marsh core site (Source: YSI)

   Range of values
   Minimum:	17.2
   Maximum:	29.2
   Units:	Degrees Celsius
   Resolution:	0.1

   Barometric Pressure (mmHg)

   Barometric pressure at each marsh core site, in millimeters of mercury (Source: YSI)

   Range of values
   Minimum:	759.4
   Maximum:	766.3
   Units:	Millimeters of mercury
   Resolution:	0.1

   Dissolved Oxygen (%)

   Water column percent dissolved oxygen at each marsh core site (Source: YSI)

   Range of values
   Minimum:	1.9
   Maximum:	100.4
   Units:	Percent
   Resolution:	0.1

   Dissolved Oxygen (mg/L)

   Water column dissolved oxygen in milligrams per liter at each marsh core site (Source: YSI)

   Range of values
   Minimum:	0.18
   Maximum:	8.6
   Units:	Milligrams per liter
   Resolution:	0.01

   Specific Conductance (μS/cm)

   Water column specific conductance in microsiemens per centimeter at each marsh core site (Source: YSI)

   Range of values
   Minimum:	146
   Maximum:	41726
   Units:	Microsiemens per centimeter
   Resolution:	1

   Salinity

   Water column salinity at each marsh core site (Source: YSI)

   Range of values
   Minimum:	6.37
   Maximum:	25.17
   Units:	Practical salinity units
   Resolution:	0.01

   pH

   Water column pH at each core location (Source: YSI)

   Range of values
   Minimum:	6.05
   Maximum:	7.94
   Units:	Hydrogen ion concentrations
   Resolution:	0.01

   Oxidation-Reduction Potential (mV)

   Water column oxidation-reduction potential in millivolts at each core location (Source: YSI)

   Range of values
   Minimum:	-62.5
   Maximum:	834.8
   Units:	Millivolts
   Resolution:	0.1

   Comment

   Additional information or explanation for the corresponding data provided by the USGS scientist (Source: USGS) Character string

   13BIM01_SedimentPhysicalProperties.xlsx

   Microsoft Excel workbook listing water content, porosity, bulk density and loss on ignition data for the sediment push cores collected in this study (USGS FAN 13BIM01). The results for each core are provided on its own tab. (Source: USGS)

   13BIM01_SedimentPhysicalProperties.csv

   Comma-separated values text file listing water content, porosity, bulk density and loss on ignition data for sediment push cores collected in this study (USGS FAN 13BIM01). (Source: USGS)

   Core ID

   Core identifier assigned by the USGS scientist (Source: USGS) Character string

   Depth (cm)

   Depth interval in centimeters measured below the core surface (Source: USGS)

   Range of values
   Minimum:	0-1
   Maximum:	70-72
   Units:	Centimeters
   Resolution:	0.5

   Water Content (g-water/g-wet)

   The ratio of the mass of water to the mass of wet sediment (Source: USGS)

   Range of values
   Minimum:	0.13
   Maximum:	0.94
   Units:	Grams of water per grams of wet sediment
   Resolution:	0.01

   Porosity (cm^3-voids/cm^3-wet)

   Porosity of the sediment interval (Source: USGS)

   Range of values
   Minimum:	0.25
   Maximum:	0.93
   Units:	Cubic centimeter of void space per cubic centimeter of wet sediment
   Resolution:	0.01

   Dry Bulk Density (g/cm^3)

   Dry bulk density of the sediment interval (Source: USGS)

   Range of values
   Minimum:	0.04
   Maximum:	1.70
   Units:	Grams per cubic centimeter
   Resolution:	0.01

   Loss On Ignition (g-OM/g-dry)

   The ratio of the mass of organic matter combusted at 550 Celsius to the pre-combusted mass of dry sediment (Source: USGS)

   Range of values
   Minimum:	0.008
   Maximum:	0.423
   Units:	Grams of organic matter per grams of dry sediment
   Resolution:	0.001

   13BIM01_GrainSize.xlsx

   Microsoft Excel workbook summarizing grain-size parameters for five sediment push cores collected in this study (USGS FAN 13BIM01). The averaged results for each sample, including the number of runs used, the standard deviation of the averaged results, and graphical class-size distributions, are provided for each core on its own tab. (Source: USGS)

   13BIM01_GrainSize.csv

   Comma-separated values text file summarizing grain-size parameters for five sediment push cores collected in this study (USGS FAN 13BIM01). The averaged results for each sample, including the number of runs used, the standard deviation of the averaged results, and graphical class-size distributions, are provided. (Source: USGS)

   13BIM01_GammaSpectroscopy.xlsx

   Microsoft Excel workbook listing gamma spectroscopy radiochemistry results for the sediment push cores collected in this study (USGS FAN 13BIM01). The results for each core are provided on its own tab. (Source: USGS)

   13BIM01_GammaSpectroscopy.csv

   Comma-separated values text file listing gamma spectroscopy radiochemistry results for the sediment push cores collected in this study (USGS FAN 13BIM01). (Source: USGS)

   Be-7 (dpm/g)

   Beryllium-7 specific activity measured in disintegrations per minute per gram of dry sediment decay-corrected to the date of field collection (Source: USGS)

   Range of values
   Minimum:	Not Detected
   Maximum:	2.29
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Be-7 Error (+/- dpm/g)

   Beryllium-7 specific activity counting error measured in disintegrations per minute per gram of dry sediment (Source: USGS)

   Range of values
   Minimum:	Null
   Maximum:	0.76
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Cs-137 (dpm/g)

   Cesium-137 specific activity measured in disintegrations per minute per gram of dry sediment decay-corrected to the date of field collection (Source: USGS)

   Range of values
   Minimum:	Not Detected
   Maximum:	5.01
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Cs-137 Error (+/- dpm/g)

   Cesium-137 specific activity counting error measured in disintegrations per minute per gram of dry sediment (Source: USGS)

   Range of values
   Minimum:	Null
   Maximum:	0.16
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Pb-210 (dpm/g)

   Lead-210 specific activity measured in disintegrations per minute per gram of dry sediment decay-corrected to the date of field collection (Source: USGS)

   Range of values
   Minimum:	0.11
   Maximum:	30.02
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Pb-210 Error (+/- dpm/g)

   Lead-210 specific activity counting error measured in disintegrations per minute per gram of dry sediment (Source: USGS)

   Range of values
   Minimum:	0.11
   Maximum:	0.98
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Ra-226 (dpm/g)

   Radium-226 specific activity measured in disintegrations per minute per gram of dry sediment decay-corrected to the date of field collection (Source: USGS)

   Range of values
   Minimum:	0.11
   Maximum:	3.52
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Ra-226 Error (+/- dpm/g)

   Radium-226 specific activity counting error measured in disintegrations per minute per gram of dry sediment (Source: USGS)

   Range of values
   Minimum:	0.04
   Maximum:	0.22
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Th-234 (dpm/g)

   Thorium-234 specific activity measured in disintegrations per minute per gram of dry sediment decay-corrected to the date of field collection (Source: USGS)

   Range of values
   Minimum:	0.13
   Maximum:	17.11
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   Th-234 Error (+/- dpm/g)

   Thorium-234 specific activity counting error measured in disintegrations per minute per gram of dry sediment (Source: USGS)

   Range of values
   Minimum:	0.13
   Maximum:	0.84
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   K-40 (dpm/g)

   Potassium-40 specific activity measured in disintegrations per minute per gram of dry sediment decay-corrected to the date of field collection (Source: USGS)

   Range of values
   Minimum:	0.72
   Maximum:	48.77
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   K-40 Error (+/- dpm/g)

   Potassium-40 specific activity counting error measured in disintegrations per minute per gram of dry sediment (Source: USGS)

   Range of values
   Minimum:	0.37
   Maximum:	3.05
   Units:	Disintegrations per minute per gram
   Resolution:	0.01

   13BIM01_Foraminifera_Cores.xlsx

   Microsoft Excel workbook summarizing foraminiferal counts for eight sediment push cores and one peat auger core collected in this study (USGS FAN 13BIM01). The species count data, total foraminifera present, number of species, sample volume, percent of sample examined, and foraminifera density are provided for each core on its own tab. (Source: USGS)

   13BIM01_Foraminifera_Cores.csv

   Comma-separated values text file summarizing foraminiferal counts for eight push cores and one peat auger core collected in this study (USGS FAN 13BIM01). The species count data, total foraminifera present, number of species, sample volume, percent of sample examined, and foraminifera density are provided. (Source: USGS)

   13BIM01_Foraminifera_Surface.xlsx

   Microsoft Excel workbook summarizing foraminiferal counts for surface sediment samples collected in this study (USGS FAN 13BIM01). The species count data, total foraminifera present, number of species, sample volume, percent of sample examined, and foraminifera density are provided. Counts for living and dead foraminifera from each sample are provided on separate tabs. (Source: USGS)

   13BIM01_Foraminifera_Surface.csv

   Comma-separated values text file summarizing living and dead foraminiferal counts for surface sediment samples collected in this study (USGS FAN 13BIM01). The species count data, total foraminifera present, number of species, sample volume, percent of sample examined, and foraminifera density are provided. (Source: USGS)

   13BIM01_ElementConcentrations.xlsx

   Microsoft Excel workbook listing the elemental concentrations for three sediment push cores collected in this study (USGS FAN 13BIM01). The results for each core are provided on its own tab. (Source: USGS)

   13BIM01_ElementConcentrations.csv

   Comma-separated values text file listing the elemental concentrations for three sediment push cores collected in this study (USGS FAN 13BIM01). (Source: USGS)

   13BIM01_StableIsotopes.xlsx

   Microsoft Excel workbook listing the stable isotopic ratios for three of the sediment push cores collected in this study (USGS FAN 13BIM01). Isotopic ratios for calibrated laboratory reference material are included. The results for each core are provided on its own tab. (Source: SIF)

   13BIM01_StableIsotopes.csv

   Comma-separated values text file listing the stable isotopic ratios for three of the sediment push cores collected in this study (USGS FAN 13BIM01). Isotopic ratios for calibrated laboratory reference material are included. (Source: SIF)

   Core ID

   Core identifier assigned by the USGS scientist. (Source: USGS) Character string

   Depth (cm)

   Depth interval, in centimeters, measured below the core surface. (Source: USGS)

   Range of values
   Minimum:	0-1
   Maximum:	69-70
   Units:	Centimeters
   Resolution:	1

   Lab ID

   Sample identifier assigned by the University of California, Davis Stable Isotope Facility analytical laboratory (Source: SIF) Character string

   Analysis Number

   Analytical sequence identifier assigned by the analytical laboratory (Source: SIF) Character string

   Sample Weight (mg)

   Weight of fumigated sediment double-encapsulated in tin submitted for stable isotopic analysis, in milligrams (Source: USGS)

   Range of values
   Minimum:	12.2
   Maximum:	73.8
   Units:	Milligram
   Resolution:	0.1

   δ13C

   Ratio of the stable isotopes carbon-13 to carbon-12 in the sediment relative to the Vienna Pee Dee Belemnite standard, reported in parts per thousand (Source: SIF)

   Range of values
   Minimum:	-27.86
   Maximum:	37.71
   Units:	Parts per thousand
   Resolution:	0.01

   C Amount (μg)

   Reported amount of total carbon present in the analyzed sample in micrograms (Source: SIF)

   Range of values
   Minimum:	183.4
   Maximum:	2771.36
   Units:	Microgram
   Resolution:	0.01

   δ15N

   Ratio of the stable isotopes nitrogen-15 to nitrogen-14 in the sediment relative to air, reported in parts per thousand (Source: SIF)

   Range of values
   Minimum:	0.03
   Maximum:	47.63
   Units:	Parts per thousand
   Resolution:	0.01

   N Amount (μg)

   Reported amount of total nitrogen present in the analyzed sample, in micrograms (Source: SIF)

   Range of values
   Minimum:	11.75
   Maximum:	191.46
   Units:	Microgram
   Resolution:	0.01

   Reference ID

   Laboratory identifier of calibrated reference standards (Source: SIF) Character string

   Weight (μg)

   Weight of reference material analyzed in micrograms (Source: SIF)

   Range of values
   Minimum:	494
   Maximum:	6006
   Units:	Microgram
   Resolution:	1

   Reference Name

   Name of calibrated reference standards (Source: SIF) Character string

   %C

   Percent of total carbon measured in laboratory reference standard (Source: SIF)

   Range of values
   Minimum:	40.81
   Maximum:	46.18
   Units:	Percent
   Resolution:	0.01

   %N

   Percent of total nitrogen measured in laboratory reference standard (Source: SIF)

   Range of values
   Minimum:	2.88
   Maximum:	9.52
   Units:	Percent
   Resolution:	0.01

   Entity_and_Attribute_Overview:

   The detailed attribute descriptions for the grain size workbook are provided in the included data dictionary (13BIM01_Grain_Size_Data_Dictionary.pdf). These metadata are not complete without this file.

   Entity_and_Attribute_Detail_Citation:

   Data dictionary for grain-size data tables, in: Marot, M.E., Kelso, K.W., Osterman, L.E., DeWitt, N.T., and Smith, C.G., 2018, Sedimentary Data Collected in April 2013 From Dauphin Island and salt marshes of coastal Alabama: U.S. Geological Survey data release, https://doi.org/10.5066/F7H70DSZ.

   Entity_and_Attribute_Overview:

   The detailed attribute descriptions for the foraminifera workbooks are provided in the included data dictionary (13BIM01_Foraminiferal_Data_Dictionary.pdf). These metadata are not complete without this file.

   Entity_and_Attribute_Detail_Citation:

   Data dictionary for foraminifera data tables, in: Marot, M.E., Kelso, K.W., Osterman, L.E., DeWitt, N.T., and Smith, C.G., 2018, Sedimentary Data Collected in April 2013 From Dauphin Island and salt marshes of coastal Alabama: U.S. Geological Survey data release, https://doi.org/10.5066/F7H70DSZ.

   Entity_and_Attribute_Overview:

   The detailed attribute descriptions for the element concentration workbook are provided in the included data dictionary (13BIM01_Element_Concentration_Data_Dictionary.pdf). These metadata are not complete without this file.

   Entity_and_Attribute_Detail_Citation:

   Data dictionary for element concentration data tables, in: Marot, M.E., Kelso, K.W., Osterman, L.E., DeWitt, N.T., and Smith, C.G., 2018, Sedimentary Data Collected in April 2013 From Dauphin Island and salt marshes of coastal Alabama: U.S. Geological Survey data release, https://doi.org/10.5066/F7H70DSZ.

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Marci E. Marot
   • Kyle W. Kelso
   • Lisa E. Osterman
   • Nancy T. DeWitt
   • Christopher G. Smith
2. Who also contributed to the data set?

   U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center

3. To whom should users address questions about the data?
   U.S. Geological Survey

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   727-502-8000 (voice)

   mmarot@usgs.gov

Why was the data set created?

Dissemination of field data, core descriptions, and processed sediment data from push cores, vibracores, and surficial sediments collected from Dauphin Island and salt marshes of coastal Alabama, in April 2013 (USGS FAN 13BIM01).

How was the data set created?

1. From what previous works were the data drawn?
2. How were the data generated, processed, and modified?

   Date: 2017 (process 1 of 15)

   DGPS Acquisition: A DGPS base station was erected at NGS PID BH1755 located at the entrance to Fort Gaines on Dauphin Island, AL, within 30 km of all but two sample sites. Two marsh sites (MD21 and MD22) were within 50 km of the base station. For the Grand Bay, AL/MS marsh site measurements the base station was erected at benchmark NGS PID DO5987 (166B) located at the boat ramp at the end of Bayou Heron Road Grand Bay, AL/MS. The DGPS receivers recorded the full-carrier-phase positioning signals (L1/L2) from satellites via the choke-ring antenna at the base locations. The DGPS instrument and Ashtech marine antenna were duplicated for the roving units at the sample sites. The base receiver and the rover receiver record their positions concurrently at 5-second (s) recording intervals throughout the survey. Occupation times at the sample sites were a minimum of 30 minutes. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: Nancy DeWitt

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   (727) 502-8000 (voice)

   ndewitt@usgs.gov

   Date: 2017 (process 2 of 15)

   GPS Post-Processing: The NAD83 (2011) published coordinates for the GPS base stations located at NGS PID BH1775 (BH17) and CORS station ALDI (ALDI) were used for post-processing all sample sites except for the Grand Bay, MS/AL sample sites, which utilized the NAD83 (2011) position reported in the OPUS solution. Refer to the horizontal and vertical positional accuracy sections of this metadata file for further details. The base station coordinates and antenna heights were entered into Waypoint Product Group’s GrafNav program (version 8.40.1408 for the vibracores and version 8.70.4517 for the marsh sample sites), and the antenna profiles selected for post processing. Final positional coordinates were exported in the processing datum of NAD83 (2011) with respect to the GEOID12A model. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: Nancy DeWitt

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   (727) 502-8000 (voice)

   ndewitt@usgs.gov

   Data sources produced in this process:

   • 13BIM01_SiteInformation.zip

   Date: 2013 (process 3 of 15)

   Sediment cores were collected at ten salt marsh sites in coastal Alabama (5 sites on Dauphin Island, 2 sites in Grand Bay marsh, 2 sites along Fowl River, and 1 site within the Mobile-Tensaw River delta). Push cores were collected with 10.2-centimeter (cm) diameter polycarbonate barrels, driven into the sediment until refusal. Measurements were taken on the inside and outside of the barrel to determine compaction or core shortening values. Upon retrieval, the push cores were capped, labeled, and inspected for integrity. Push core recovered lengths ranged between 41 and 76 cm. Russian peat auger cores were collected at each push core site in Grand Bay, Fowl River and the Mobile-Tensaw delta. The peat auger collected sediments in 5-cm diameter, 50-cm long segments. The peat auger was driven to successive 50-cm depth increments until refusal such that a continuous sediment record was obtained. Each core segment was photographed, transferred to a PVC core sleeve, and sealed in plastic wrap. Surficial water quality properties were measured with an YSI Professional Plus multi-sensor meter at the Grand Bay, Fowl River and Mobile-Tensaw delta field sites. The uppermost 1 cm of surficial sediment was collected at each core site for microfossil analysis. At most sites, replicate surface samples, labeled as a and b subsamples, were collected following standard microfossil collection protocols. At sites FR17, GB18, and GB19, a transect of microfossil samples were collected from the edge of the tidal creek to the marsh core site, labeled as {site ID}-#S with #=1 at the marsh edge and incrementing successively up to the core site. Immediately after collection, each surficial sediment sample was stained with Rose Bengal to aid in the identification of live or recently living specimens. Cores and surface sample identifiers consist of the USGS FAN (13BIM01) and a site-specific identifier (for example, DA01). An alphabetic identifier was appended to each site identifier to signify the collection method (M for push core, R for peat auger core, and S for surface sample). Site positioning and elevations were determined using an Ashtech differential GPS receiver. Site locations, elevations, date of collection, vegetation, core lengths and compaction, and YSI measurements are reported in an Excel spreadsheet. Comma-separated values data files containing the tabular data in plain text are included in the download files. Peat auger field photographs are available in Portable Document Format (pdf) files. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_SiteInformation.zip
   • 13BIM01_PeatAugers.zip

   Date: 2013 (process 4 of 15)

   Within 4 days of field collection, all cores were vertically extruded and sectioned into 1-cm intervals. The outer circumference of each interval was removed to avoid use of sediment that was in contact with the polycarbonate barrel. Each sediment interval was bagged and homogenized. The bagged intervals were stored on ice until arrival at the SPCMSC, where they were refrigerated until processing. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Date: 2013 (process 5 of 15)

   Vibracores were collected at 15 sites on Dauphin Island, AL. The terrestrial vibracores were obtained by using the assemblage of an 8-hp Briggs and Stratton motor attached to a Dreyer 2 1/8-in concrete vibrator head with a 28-ft flexible shaft. Bolted to the vibrator head is a galvanized steel clamp with a quick release system for connecting the clamp to 3-in/7.62-cm diameter aluminum core barrels of varying length. The aluminum barrel is vibrated into the subsurface until refusal, and then cut to discard any unused portion of the barrel. Measurements were taken on the inside and outside of the barrel to determine compaction or core shortening values. The empty void within the barrel was filled with water and an expansion plug was inserted onto the top of the barrel to ensure a solid vacuum. The full core barrel was extracted from the subsurface using a 10-ft. aluminum tripod and a 2-ton come-along winch. Once the barrel was completely removed from the subsurface, core caps were affixed to the openings on both ends of the barrel and reinforced with duct tape. The core was labeled with the USGS FAN, designated sample site identifier (for example, DA01), and top/bottom indicators. Vibracore site identifiers end with the letter V to indicate the sediment collection method. Site positioning and elevations were determined using an Ashtech differential GPS receiver. Site locations, elevations, along with recovered core lengths core compaction measurements are reported in an Excel spreadsheet. Comma-separated values data files containing the tabular data in plain text are included in the download files. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Kyle W. Kelso

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   kkelso@usgs.gov

   Data sources produced in this process:

   • 13BIM01_SiteInformation.zip

   Date: 2013 (process 6 of 15)

   The vibracores were transported to the core-analysis laboratory at the USGS St. Petersburg Coastal and Marine Science Center where they were described, photographed, sampled, and archived. Each vibracore was cut into 1-m long sections and split lengthwise. One-half of each core was described macroscopically using standard sediment-logging methods, photographed, and sealed in plastic sleeves for archive storage. The other half was subsampled for Optically Stimulated Luminescence (OSL) age dating. OSL age dating requires that the sample investigated is primarily quartz sand and has not been exposed to light of any sort. To ensure this was the case, the cores were opened in a completely dark room, using only photographic dark room red lights. Samples of the core were also extracted in the dark and placed into film canisters to be shipped off for analysis. The samples were sent to the USGS Luminescence Dating Laboratory in Lakewood, CO. Data from the OSL analysis were not available at the time of publication; consequently, they are not included in this data report. Core logs were compiled presenting the vibracore descriptions and photographs relative to both depth below sediment surface and the orthometric height of the sample site. The core logs are available as Portable Document Format (PDF) files. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Kyle W. Kelso

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   kkelso@usgs.gov

   Data sources produced in this process:

   • 13BIM01_Vibracores.zip

   Date: 2013 (process 7 of 15)

   In the SPCMSC laboratory, a subsample of each 1-cm interval from 9 push cores was processed for basic sediment characteristics (dry bulk density and porosity). Core FR17M was not included in any laboratory analysis as FR26M, also from the Fowl River marsh, was of greater interest to this study. Water content, porosity and dry bulk density were determined using water mass lost during drying. For each 1-cm interval, 15–115 milliliters (mL) of each wet subsample was packed into a graduated syringe with 0.5 mL resolution. The wet sediment was then extracted into a pre-weighed aluminum tray and the weight of the wet sediment and the volume was recorded. The wet sediment and tray were placed in a drying oven for a minimum of 48 hours at 60 degrees Celsius (°C). Water content (θ) was determined as the mass of water (mass lost when dried) relative to the initial wet sediment mass. Dry bulk density was determined by ratio of dry sediment to the known volume of sediment packed into the syringe. Porosity (φ) was calculated from the equation φ = θ / [θ+(1-θ)/ρs] where ρs is grain density assumed to be 2.5 grams per cubic centimeter (g/cm^3). Salt-mass contributions were removed based on the salinity measured at the time of sample collection or estimated to be 25 if a field measurement was not recorded. Water content, porosity and dry bulk density are reported in the Excel spreadsheet. A comma-separated values data file containing the tabular data in plain text is included in the download file. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_SedimentPhysicalProperties.zip

   Date: 2015 (process 8 of 15)

   Organic matter content was determined with a mass loss technique, referred to as loss on ignition (LOI). The dry sediment from the previous process was homogenized with a porcelain mortar and pestle. Approximately 1.5-5 grams (g) of the dry sediment was placed into a pre-weighed porcelain crucible. The mass of the dried sediment was recorded. The sample was then placed inside a laboratory muffle furnace with stabilizing temperature control. The furnace was heated to 110°C for a minimum of 6 hours to remove hygroscopic water absorbed onto the sediment particles. The furnace temperature was then lowered to 60 °C, at which point the sediments could be reweighed. The dried sediment was returned to the muffle furnace. The furnace was heated to 550 °C over 30 minutes and kept at 550 °C for 6 hours. The furnace temperature was then lowered to 60 °C and held at this temperature until the sediments could be reweighed. The latter step prevents the absorption of moisture, which can affect the measurement. The mass lost during the 6-hour baking period relative to the 110 °C-dried mass is used as a metric of organic matter content. Data are reported as a ratio of mass (g) of organic matter to mass (g) of dry sediment (post-110 °C drying). Replicate analyses of loss on ignition for a representative subset are reported for quality assurance in the Excel spreadsheet. A comma-separated values data file containing the tabular data in plain text is included in the download file. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_SedimentPhysicalProperties.zip

   Date: 2013 (process 9 of 15)

   The stained microfossil samples collected in the field were transferred to the USGS SPCMSC foraminiferal lab. To ensure accurate and thorough staining, samples were inverted daily for 2 weeks. In addition to the stained surface samples, microfossil analysis was performed on subsamples from select depth intervals from eight push cores and one peat auger core. Since the core samples were not stained with Rose Bengal, only total foraminifera counts are reported. Prior to washing, the relative volume (mL) of sediment was recorded using the volume gradation on the tube (±1 mL). For the marsh push cores, a portion (3 – 25 cm^3) of the wet material from each depth interval was placed in a graduated syringe, and the volume recorded. The samples were soaked in water with a few milliliters of 10 percent sodium hexametaphosphate solution, slowly agitated for up to 1 hour to aid disaggregation, and then washed over 63- and 850-micron (μm) stainless-steel sieves under warm water. The samples retained by the sieves (63-850 and > 850 µm size fraction) were oven-dried at ≤ 60 °C and then the 63-850 µm size fraction was dry-sieved at 125 µm. The foraminifers were picked, counted, and identified from the 125-850 µm size fraction. If more than 300 specimens were encountered in a sample, the sample was split with a micro-splitter. One split fraction from each sample was counted. If splitting was not required, the entire 125-850 µm fraction was spread across a 45-square, hole-punched tray, one or more times, for examination under a microscope. When a stained specimen, which was probably alive at collection, was encountered, it was picked up with a wet brush and dropped through a hole in the tray onto a stationary, 60-square micropaleontological slide for later sorting and identification. Both the a and b subsamples were picked, sorted, and counted individually. The unstained surface samples and core samples were also picked, counted and identified from the 125-850 µm size fraction using the same processing procedures. The foraminiferal counts are reported in Excel spreadsheets. Comma-separated values data files containing the tabular data in plain text are included in the download files. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_Foraminifera.zip
   • 13BIM01_ForaminiferaReferenceList.pdf

   Date: 2015 (process 10 of 15)

   Down-core particle size analysis was performed on each 1-cm depth interval for 5 of the push cores (DA13M, GB18M, GB19M, FR26M, and DA27M). A total of 230 samples were analyzed. Prior to particle size analysis, organic material was chemically removed for the samples using 30% hydrogen peroxide (H2O2). Wet sediment was dissolved in H2O2 overnight. The H2O2 was then evaporated by gentle heating and the sediment washed and centrifuged twice with deionized water. Grain size analyses on the sediment cores were performed using a Coulter LS 200 or LS 13 320 (https://www.beckmancoulter.com/) particle-size analyzer (PSA), which uses laser diffraction to measure the size distribution of sediments ranging in size from 0.4 microns to 2 millimeters (mm) (clay to very coarse-grained sand). To prevent shell fragments from damaging the Coulter instrument, particles greater than 1 mm in diameter were separated from all samples prior to analysis using a number 18 (1000 microns or 1 mm) U.S. standard sieve, which meets the American Society for Testing and Materials (ASTM) E11 standard specifications for determining particle size using woven-wire test sieves. Two subsamples from each depth interval were processed through the instrument a minimum of four runs each. The sediment slurry made from the digested sample and deionized water was sonicated with a wand sonicator for 1 minute before being introduced into the Coulter PSA to breakdown aggregated particles. The Coulter PSA measures the particle-size distribution of each sample by passing sediment suspended in solution between two narrow panes of glass in front of a laser. Light is scattered by the particles into characteristic refraction patterns measured by an array of photodetectors as intensity per unit area and recorded as relative volume for 92 size-related channels (bins). The size-classification boundaries for each bin were specified based on the ASTM E11 standard. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Date: 2013 (process 11 of 15)

   The raw grain size data were then run through the free software program GRADISTAT (Blott and Pye, 2001; http://www.kpal.co.uk/gradistat), which calculates the mean, sorting, skewness, and kurtosis of each sample geometrically in metric units and logarithmically in phi units. GRADISTAT also calculates the fraction of sediment from each sample by size category (for example, clay, coarse silt, fine sand). A macro function in Microsoft Excel, developed by the USGS SPCMSC, was applied to the data to calculate average and standard deviation for each sample set (6-12 runs per sample), and highlight runs that varied from the set average by more than ±1.5 standard deviations. Excessive deviations from the mean are likely the result of equipment error or extraneous organic material in the sample and are not considered representative of the sample. The highlighted runs were removed from the results and the sample average was recalculated using the remaining runs. The averaged results for all samples, including the number of averaged runs and the standard deviation of the averaged results were summarized in an Excel workbook with each core on its own tab. A comma-separated values data file containing the tabular data in plain text is included in the download file. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_GrainSize.zip

   Date: 2013 (process 12 of 15)

   Dried ground sediment from the 1-cm depth intervals of the 9 push cores were used for the detection of radionuclides by standard gamma-ray spectrometry (Cutshall and Larsen, 1986) at the USGS SPCMSC radioisotope lab. The uppermost 30 cm were analyzed from each core with selected intervals analyzed below 30 cm. A total of 397 depth intervals were analyzed for radioisotopic activities. The sediments (3-50 g) were sealed in airtight polypropylene containers. The sample weights and counting container geometries were matched to pre-determined calibration standards. The sealed samples sat for a minimum of 3 weeks to allow Ra-226 to come into secular equilibrium with its daughter isotopes Pb-214 and Bi-214. The sealed samples were then counted for 24-72 hours on a planar-style, low energy, high-purity germanium, gamma-ray spectrometer. The suite of naturally-occurring and anthropogenic radioisotopes measured along with their corresponding photopeak energies in kiloelectron volts (keV) are Pb-210 (46.5 keV), Th-234 (63.3 keV), Pb-214 (295.7 and 352.5 keV; proxies for Ra-226), Be-7 (477.6 keV), Bi-214 (609.3 keV; proxy for Ra-226), Cs-137 (661.6 keV), and K-40 (1640.8 keV). Sample count rates were corrected for detector efficiency determined with International Atomic Energy Agency RGU-1 reference material, standard photopeak intensity, and self-absorption using a U-238 sealed source (Cutshall and others, 1983). Be-7 activities are only reported for 13BIM01-DA13M. In all other cores, Be-7 was either not present in the sediment or the samples were counted after Be-7 decay to non-detectable levels. All activities were decay-corrected to the date of field collection. The radioisotopic activities reported in the Excel spreadsheet include the counting error for all samples. The critical level is reported for each core. A comma-separated values data file containing the tabular data in plain text is included in the download file. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_GammaSpectroscopy.zip

   Date: 2015 (process 13 of 15)

   Dried, ground sediment from the 1-cm depth intervals of 3 push cores (DA13M, DA27M, and FR26M) were submitted for element concentration analysis to the USGS Central Mineral and Environmental Resources Science Center (CMERSC). Between 0.4936 and 1.8701 g of material was sent in 25 mL glass scintillation vials for a 42-element analysis of concentrations (Taggart, 2002). For quality assurance, thirty percent of samples from each core were submitted in replicate. At CMERSC, samples were digested using hydrochloric, nitric, perchloric, and hydrofluoric acids and then aspirated into the inductively coupled plasma-atomic emission spectrometer (ICP-AES) and inductively coupled plasma-mass spectrometer (ICP-MS). The ICP-AES was calibrated using digested rock reference materials as well as a series of multi-element solution standards. The ICP-MS was calibrated with aqueous standards. To account for internal drifts and matrix effects, internal standards were used. The elemental concentrations reported in the Excel spreadsheet include the replicate sample analyses. A comma-separated values data file containing the tabular data in plain text is included in the download file. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_ElementConcentrations.zip

   Date: 2013 (process 14 of 15)

   Sediment samples from the 1-cm depth intervals of 3 push cores (DA13M, DA27M, and FR26M) were submitted to the University of California, Davis Stable Isotope Facility (SIF) for percent organic carbon, percent nitrogen, carbon-nitrogen ratio, δ13C, and δ15N. Dried, homogenized sediment was placed in 8 x 5 millimeter (mm) silver capsules, wet with 50 microliters (µL) of deionized water, and fumigated in a desiccator with 100 mL of concentrated hydrochloric acid for 6 hours to remove inorganic carbon (Harris and others, 2001). Samples were then dried at 60 °C overnight, and double encapsulated in tin for combustion purposes. For quality assurance, thirty percent of samples from each core were submitted in replicate. All samples were analyzed using a Costech ESC 4010 Elemental Combustion System interfaced with a Thermo Finnigan DELTAplus Advantage isotope ratio mass spectrometer. Values are relative to international standards: the VPDB (Vienna Pee Dee Belemnite) for carbon, and air for nitrogen. The standard deviation of the provided values is estimated at ±0.4 per mille. The stable isotopic ratios reported in the Excel spreadsheet include the replicate sample analyses and calibrated laboratory reference sample results. Data for the cores and the laboratory reference material are reported each on their own tab. A comma-separated values data file containing the tabular data in plain text is included in the download file. Person who carried out this activity:
   

   U.S. Geological Survey St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   U.S.

   (727) 502-8000 (voice)

   mmarot@usgs.gov

   Data sources produced in this process:

   • 13BIM01_StableIsotopes.zip

   Date: 13-Oct-2020 (process 15 of 15)

   Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: VeeAnn A. Cross

   Marine Geologist

   384 Woods Hole Road

   Woods Hole, MA
   

   508-548-8700 x2251 (voice)

   508-457-2310 (FAX)

   vatnipp@usgs.gov

3. What similar or related data should the user be aware of?
   Forde, A.S., Smith, C.G., and Reynolds, B.J., 20160318, Archive of ground penetrating radar data collected during USGS field activity 13BIM01—Dauphin Island, Alabama, April 2013: U.S. Geological Survey Data Series 982.

   Online Links:

   • https://doi.org/10.3133/ds982

   Blott, S.J. and Pye, K., 2001, Gradistat: A grain size distribution and statistics package for the analysis of unconsolidated sediments: Earth Surface Processes and Landforms Volume 26.

   Online Links:

   • http://www.kpal.co.uk/gradistat.html

   Other_Citation_Details: Pages 1237-1248
   

   Cutshall, N.H., Larsen, I.L., and Olsen, C.R., 19830215, Direct analysis of 210Pb in sediment samples: self-absorption corrections: Nuclear Instruments and Methods in Physics Research Volume 206, Issues 1–2.

   Online Links:

   • https://doi.org/10.1016/0167-5087(83)91273-5

   Other_Citation_Details: Pages 309-312
   

   Cutshall, N.H. and Larsen, I.L., 19860701, Calibration of a portable intrinsic Ge gamma-ray detector using point sources and testing for field applications: Health Physics Volume 51.

   Online Links:

   • https://doi.org/10.1097/00004032-198607000-00004

   Other_Citation_Details: Pages 53-59
   

   Taggart, J.E., Jr., 2002, Analytical methods for chemical analysis of geologic and other materials, U.S. Geological Survey: U.S. Geological Survey Open-File Report 02-0223.

   Online Links:

   • https://pubs.usgs.gov/of/2002/ofr-02-0223

   Harris, D., Horwath, W.R., and van Kessel, C., 2001, Acid fumigation of soils to remove carbonates prior to total organic carbon or carbon-13 isotopic analysis: Soil Science Society of America Journal Volume 65.

   Online Links:

   • https://doi.org/10.2136/sssaj2001.1853

   Other_Citation_Details: Pages 1853-1856
   

   Walton, W. R., 1952, Techniques for recognition of living foraminifera: Contributions from the Cushman Foundation for Foraminiferal Research Volume 3.

   Other_Citation_Details: Pages 56-60
   

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?
   The accuracy of the position and elevation data is determined during data collection. It is a function of the benchmark horizontal and vertical accuracy, and the quality of the raw DGPS position data recorded by the DGPS receiver and antenna. Benchmarks for the base stations were selected based upon the reported positional accuracy of a benchmark and the distance between sample sites (rover) and base station. For this survey the distance was kept within 30 kilometers (km). The final position and associated accuracy of the sample locations was determined through post-processing the DGPS trajectory between the base DGPS and the rover DGPS using Waypoint Product Group's GrafNav software version 8.40.1408 for the vibracores and version 8.70.4517 for the marsh sample sites. All base station positions, respective antenna profiles, antenna height offsets, and recording intervals were accounted for in post processing. If a benchmark position was in question the DGPS session(s) was submitted to the NGS (National Geodetic Survey) On-Line Positioning User Service (OPUS), processing software version 2.2 to obtain a position. Replicate analyses of loss on ignition are reported for quality assurance. The grain size data represent the sample averages for a subset of the statistical parameters calculated by GRADISTAT. The number of runs included in the averaged results are reported, and the standard deviation of the averaged results are reported for most parameters. The gamma spectroscopic radioisotope activities reported include the counting error for all samples. The critical level for gamma spectroscopy is reported for each core set. Replicate samples for metal concentration were analyzed for quality assurance and reported in the data spreadsheets. Replicate samples for stable isotopic ratios were analyzed for quality assurance and reported in the data spreadsheets along with the calibrated laboratory reference sample results.
2. How accurate are the geographic locations?
   Three benchmark locations were selected to use as base locations (BH17, ALDI, and 166B); two on Dauphin Island (site name BH17 and ALDI) and one in Grand Bay (site name 166B). The Dauphin Island, AL base was erected upon the National Geodetic Survey (NGS) Permanent Identifier (PID) BH1755 benchmark at the entrance to Fort Gaines. The second site ALDI is a Continuously Operating Reference Station (CORS) in which the data could be downloaded from an active ftp server. The Grand Bay, AL/MS base was set up on NGS PID DO5987 adjacent to the entrance of the boat ramp at the end of Bayou Heron Road. The NGS published numbers obtained from the PID sheets for BH17 and ALDI were utilized for post processing. However, for Grand Bay, at the time of the survey the OPUS solution report for PID DO5987 provided more accuracy in the decimal places and it was decided to use the OPUS solution for processing those sites. The NAD83 (2011) position as reported in the OPUS solution is the following: Latitude = 30 24 46.73405 (DD, MM, SS.sssss), Longitude = 88 24 12.08567 (DD, MM, SS.sssss) and the computed coordinate accuracies (reported as peak-to-peak values as noted on the solution report) are 0.001 and 0.003 meters (m) respectively.
3. How accurate are the heights or depths?
   For PID BH1755 (BH17) and the CORS station ALDI the published coordinates were used. The NAD83 (2011) vertical position for NGS PID DO5987 as reported in the OPUS solution is the following: Ellipsoid height = -27.642 m, Orthometric height = 0.527 ms, and the computed coordinate accuracies (reported as peak-to-peak values) are 0.004 and 0.020 m respectively.
4. Where are the gaps in the data? What is missing?
   This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the rest of the metadata record carefully for additional details.
5. How consistent are the relationships among the observations, including topology?
   The grain-size sample runs in the GRADISTAT output files for which the mean Folk and Ward grain size varied from the set average by more than 1.5 standard deviations are highlighted in yellow and were not included in final averaged results. No formal logical accuracy tests were conducted on the remaining datasets.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:

The U.S. Geological Survey requests that it be acknowledged as the originator of this dataset in any future products or research derived from these data.

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center

   Attn: Marci E. Marot

   Geologist

   600 4th Street South

   St. Petersburg, FL
   

   USA

   727-502-8000 (voice)

   mmarot@usgs.gov
2. What's the catalog number I need to order this data set? Downloadable data
3. What legal disclaimers am I supposed to read?

   This publication was prepared by an agency of the United States Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:

     This zip archive includes Microsoft Excel spreadsheets, comma-separated values text files, Portable Document Format (PDF) image files, and accompanying metadata for sediment data from cores collected from Dauphin Island and salt marshes along coastal Alabama (USGS FAN 13BIM01). in format Compressed (zip) archive Multimedia presentation

     Network links:

     https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_SiteInformation.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_SedimentPhysicalProperties.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_GrainSize.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_GammaSpectroscopy.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_Foraminifera.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_StableIsotopes.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_ElementConcentrations.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_PeatAugers.zip https://coastal.er.usgs.gov/data-release/doi-F7H70DSZ/data/13BIM01_Vibracores.zip

   • Cost to order the data: None, if obtained online

5. What hardware or software do I need in order to use the data set?

   The data tables for USGS FAN 13BIM01 were created in Microsoft Excel 2010 and can be opened using Microsoft Excel 2007 or higher; these data may also be viewed using the free Microsoft Excel Viewer (http://office.microsoft.com/). The data tables are also provided as comma-separated values text files (.csv). The .csv data file contains the tabular data in plain text and may be viewed with a standard text editor. Portable Document Format (PDF) files can be viewed using the free software Adobe Acrobat Reader (http://get.adobe.com/reader).

Who wrote the metadata?

Dates:

Last modified: 13-Oct-2020

Metadata author:

U.S. Geological Survey

Attn: Marci E. Marot

Geologist

600 4th Street South

St. Petersburg, FL

USA

727-502-8000 (voice)

mmarot@usgs.gov

Metadata standard:

Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)