Metadata: Identification_Information: Citation: Citation_Information: Originator: Alisha M. Ellis Originator: Cathryn J. Wheaton Originator: Christopher G. Smith Publication_Date: 20170630 Title: Archive of sediment physical properties and grain-size data for sediment samples collected offshore of Assateague Island, Maryland and Virginia Geospatial_Data_Presentation_Form: Tabular digital data Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: doi:10.5066/F7HX19WB Online_Linkage: https://doi.org/10.5066/F7HX19WB Description: Abstract: This data release serves as an archive of sediment physical properties and grain-size data for surficial samples collected offshore of Assateague Island, Maryland and Virginia, for comparison with surficial estuarine and subaerial sedimentological samples collected and assessed following Hurricane Sandy (Ellis and others, 2015 (http://doi.org/10.3133/ofr20151219); Smith and others, 2015 (http://doi.org/10.3133/ofr20151169); Bernier and others, 2016 (https://pubs.usgs.gov/ds/0999/)). The sediment samples were collected by scientists from the U.S. Geological Survey (USGS) office in Woods Hole, Massachusetts while aboard the motor vessel (M/V) Scarlett Isabella as part of a larger effort to map the inner continental shelf (Pendleton and others, 2016 (http://doi.org/10.5066/F7MW2F60)). Following field work, the sediment samples were shipped to the USGS Coastal and Marine Science Center in St. Petersburg, Florida, where they were renamed for consistency with a previously existing naming scheme and processed for bulk density, loss on ignition (LOI), and grain-size. The grain-size subsamples were processed on a Coulter LS200 particle-size analyzer for consistency regarding methods and output statistics with related data sets from Chincoteague Bay and Assateague Island. For more information regarding sample collection and site information or the related data sets, refer to USGS data release Pendleton and others, 2016 (https://doi.org/10.5066/F7MW2F60); for more information regarding processing methods refer to USGS Open-File Report 2015Ð1219 (http://doi.org/10.3133/ofr20151219). Downloadable data are available as Excel spreadsheets (.xlsx), comma-separated values text files (.csv), and formal Federal Geographic Data Committee (FGDC) metadata. Purpose: The file 14CTB-OffshoreG_SedimentPhysicalProperties.zip includes water content, dry bulk density, porosity, and loss on ignition values for each surface sample collected during the July 2014 sampling trip. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20140722 Ending_Date: 20140725 Currentness_Reference: Ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -75.436266 East_Bounding_Coordinate: -75.835042 North_Bounding_Coordinate: 38.13240 South_Bounding_Coordinate: 37.700491 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:2fdcdbe7-92bf-466d-8aca-409ff50bc7a5 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientific information Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: unconsolidated deposits Theme_Keyword: geology Theme_Keyword: geomorphology Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Assateague Island Theme_Keyword: sediment Theme_Keyword: surface Theme_Keyword: water content Theme_Keyword: dry bulk density Theme_Keyword: porosity Theme_Keyword: loss on ignition Theme_Keyword: LOI Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: U.S. Geological Survey St. Petersburg Coastal and Marine Science Center Theme_Keyword: Virginia Theme_Keyword: Maryland Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Assateague Island Place_Keyword: Maryland Place_Keyword: Virginia Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: sediment Stratum_Keyword: surface Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: July 2014 Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: aellis@usgs.gov Data_Set_Credit: U.S. Geological Survey, Coastal and Marine Geology Program, St. Petersburg Coastal and Marine Science Center Native_Data_Set_Environment: Apple OS X El Capitan Version 10.11.6; Microsoft Excel for Mac 2016 Version 15.22 Cross_Reference: Citation_Information: Originator: Ellis, A.M., Marot, M.E., Wheaton, C.J., Bernier, J.C., and Smith, C.G. Publication_Date: 2015 Title: A seasonal comparison of surface sediment characteristics in Chincoteague Bay, Maryland and Virginia, USA Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2015-1219 Online_Linkage: https://doi.org/10.3133/ofr20151219 Cross_Reference: Citation_Information: Originator: Smith, C.G., Marot, M.E., Ellis, A.M., Wheaton, C.J., Bernier, J.C., and Adams, C.S. Publication_Date: 2015 Title: Sedimentological and radiochemical characteristics of marsh deposits from Assateague Island and the adjacent vicinity, Maryland and Virginia, following Hurricane Sandy Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 2015-1169 Online_Linkage: https://doi.org/10.3133/ofr20151169 Cross_Reference: Citation_Information: Originator: Bernier, J.C., Zaremba, N.J., Wheaton, C.J., Ellis, A.M., Marot, M.E., and Smith, C.G. Publication_Date: 2016 Title: Sedimentologic characteristics of recent washover deposits from Assateague Island, Maryland Series_Information: Series_Name: U.S. Geological Survey Data Series Issue_Identification: ds999 Online_Linkage: https://doi.org/10.3133/ds999 Cross_Reference: Citation_Information: Originator: Pendleton, E.A., Ackerman, S.D., Baldwin, W.E., Danforth, W.W., Foster, D.S., Thieler, E.R., and Brothers, L.L. Publication_Date: 2016 Title: High-resolution geophysical data collected along the Delmarva Peninsula 2014, U.S. Geological Survey Field Activity 2014-002-FA Series_Information: Series_Name: U.S. Geological Survey Data Release Issue_Identification: F7MW2F60 Online_Linkage: https://doi.org/10.5066/F7MW2F60 Cross_Reference: Citation_Information: Originator: Blackwood, D., Parolski, K., and Valentine, P. Publication_Date: 2000 Title: Seabed observation and sampling system Series_Information: Series_Name: U.S. Geological Survey Fact Sheet Issue_Identification: FS-142-00 Online_Linkage: https://pubs.usgs.gov/fs/fs142-00/fs142-00.pdf Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The physical properties reported in the tables were analyzed at the USGS SPCMSC sedimentology lab. These lithologic data have not been independently verified for accuracy. Replicate analyses of loss on ignition are reported for quality assurance. Logical_Consistency_Report: The data includes sample ID, water content, dry bulk density, porosity, and loss on ignition. Completeness_Report: This is a complete, processed physical properties data file for the samples collected offshore of Assateague Island, Maryland and Virginia in July 2014. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Differential Global Positioning System (DGPS) and Wide Area Augmentation System (WAAS) enable GPS navigation data were acquired during sediment sampling with a Hemisphere receiver and recorded with HYPACK software versions 13.0.9.21 and 15.0.9.71 (www.hypack.com). The SEABOSS (Blackwood et al., 2000) was deployed approximately 5 meters astern of the GPS antenna's recording position off the ship's A-fame on the stern of the ship. No layback or offset was applied to the recorded position. In addition to the plus or minus 5 m offset the SEABOSS may additionally drift away from the survey vessel when deployed to the seafloor. Based on the various sources of horizontal error, a conservative estimate of the horizontal accuracy of the location is 20-30 meters. Lineage: Process_Step: Process_Description: The 19 stations were sampled aboard the M/V Scarlett Isabella (USGS survey 2015-001-FA) with the mid-sized SEABOSS that was equipped with a Van Veen grab sampler, and 2 digital GoPro cameras. Physical sediment samples were collected at the 19 stations. Locations for sediment samples were manually recorded from the Hemisphere GPS during the retrieval of the SEABOSS instrument, at the start of instrument recovery when it was lifted from the seabed (the Van Veen sampler closed and collected a sample as it was lifted from the sea floor). Process_Date: 2014 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Seth Ackerman Contact_Position: Physical Scientist Contact_Address: Address_Type: Mailing and physical Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2315 Contact_Electronic_Mail_Address: sackerman@usgs.gov Process_Step: Process_Description: In the laboratory, samples were homogenized. The sediment parameters subsample from each sample location was processed for basic sediment characteristics: dry bulk density and porosity. Water content, porosity, and dry bulk density were calculated by determining water mass lost during drying. Known volumes of each wet subsample, usually 20 Ð 30 mL, were packed into a graduated syringe with 0.5 cm-3 resolution. The wet sediment was then extracted into a pre-weighed aluminum tray and the wet sediment's weight was recorded. The wet sediment and tray were placed in a drying oven for 48 hours at 60 ¡C. Water content was determined as the mass of water (lost when dried) relative to the initial wet sediment mass. Porosity was estimated from the report equation in the document (http://pubs.usgs.gov/of/2015/1219/ofr2015-1219_methods.html). Salt-mass contributions were removed based on the salinity measured at the time of sample collection. Salinity was estimated to be 33. Dry bulk density was calculated from the report equation in the document (http://pubs.usgs.gov/of/2015/1219/ofr2015-1219_methods.html). Process_Date: 2014 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8056 Contact_Electronic_Mail_Address: aellis@usgs.gov Process_Step: Process_Description: Organic matter (OM) 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 5 grams of the dry sediment was placed into a pre-weighed porcelain crucible. The mass of the dried sediment was recorded with a precision of 0.01 g on an analytical balance. 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, at which point the sediments could be reweighed. 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. Process_Date: 2014 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8056 Contact_Electronic_Mail_Address: aellis@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20201013 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 19 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 14CTB-OffshoreG_SedimentPhysicalProperties.zip Entity_Type_Definition: Microsoft Excel workbook and comma-separate values sheet defining the location of each sediment sample site collected is July 2014 from offshore of Assateague Island. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: 14CTB Sample Site ID Attribute_Definition: Sample Sample identification number which corresponds to the naming scheme of related Chincoteague Bay projects Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Sample IDs listed within the table used the naming convention 14CTB-^^X. Where 14CTB indicates that it was collected in 2014 in association with the Chincoteague Bay samples, ^^ is the site location number, and G indicates that the the sample was a PONAR or VanVeen sediment grab sample. Attribute: Attribute_Label: Original Sample ID Attribute_Definition: Sample identification number which corresponds to the original naming scheme assigned by the Woods Hole group that collected the samples. Attribute_Definition_Source: USGS Attribute_Domain_Values: Unrepresentable_Domain: Character string. Attribute: Attribute_Label: Water Content (gwater/gwet) Attribute_Definition: The amount of water in the sediment sample in grams. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.09 Range_Domain_Maximum: 0.21 Attribute_Units_of_Measure: grams Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: dry bulk density (g/cm3) Attribute_Definition: the relative density of the dried sediment sample in grams per cubic centimeter Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.31 Range_Domain_Maximum: 1.68 Attribute_Units_of_Measure: grams per cubic centimeter Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Porosity (cm3voids/cm3wet) Attribute_Definition: Porosity in each sample interval measured in cubic centimeter of void space per cubic centimeter of wet sediment. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.20 Range_Domain_Maximum: 0.40 Attribute_Units_of_Measure: cubic centimeters Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Loss on Ignition (gOM/gdry) Attribute_Definition: The ratio of the mass of organic matter combusted at 450 Celsius to the pre-combusted mass of dry sediment measured in grams of organic matter to grams of dry sediment. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.02 Attribute_Units_of_Measure: grams Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: aellis@usgs.gov Resource_Description: 14CTB-OffshoreG_SedimentPhysicalProperties.zip Distribution_Liability: 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. Any use of trade, firm, or product name is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Compressed (.zip) archive Format_Version_Number: 2016 Format_Specification: .xlsx Format_Information_Content: This Microsoft Excel workbook contains site information for sediment samples collected offshore of Assateague Island in July 2014. File_Decompression_Technique: Unzip Transfer_Size: 0.057 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://coastal.er.usgs.gov/data-release/doi-F7HX19WB/data/14CTB-OffshoreG_SedimentPhysicalProperties.zip Fees: None, if obtained online Technical_Prerequisites: This workbook was created using Microsoft Excel 2016 and can be opened using Microsoft Excel 2007 or higher; these data may also be viewed using the free Microsoft Excel Viewer (http://www.microsoft.com/). Metadata_Reference_Information: Metadata_Date: 20201013 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Alisha M. Ellis Contact_Position: Geologist Contact_Address: Address_Type: Mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: aellis@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None