Chincoteague Bay surface metals data from the spring sampling trip of 2014

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Frequently anticipated questions:


What does this data set describe?

Title:
Chincoteague Bay surface metals data from the spring sampling trip of 2014
Abstract:
Following Hurricane Sandy, scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center conducted a seasonal collection of estuarine, marsh, and sandy overwash surface sediments from Chincoteague Bay, Tom’s Cove, and the surrounding Assateague Island and Delmarva Peninsula in March–April and October 2014. Surplus surface sediment was analyzed for metals, percent carbon and nitrogen, ?13C, and ?15N as part of a complementary U.S. Geological Survey Coastal and Marine Geology Program Sea-level and Storm Impacts on Estuarine Environments and Shorelines project study. The geochemical subsample analyzed for metals and stable isotopes at each site may be used for comparison with past data sets, to create a modern baseline of the natural distribution of the area, to understand seasonal variability as it relates to the health of the local environment, and to assess marsh-to-bay interactions. The use of metals, stable carbon, and stable nitrogen isotopes allows for a more cohesive snapshot of factors influencing the environment and could aid in tracking environmental change. This report serves as an archive for chemical data derived from the surface sediment. Data are available for a seasonal comparison between the March–April 2014 and October 2014 sampling trips. Downloadable data are available as Microsoft Excel spreadsheets. Additional files include formal Federal Geographic Data Committee metadata (data downloads).
Supplemental_Information:
This publication contains data for two field activities conducted in 2014: Spring March 26–April 4, 2014 (14CTB01); and fall October 21–30, 2014 (14CTB02).
  1. How might this data set be cited?
    Ellis, Alisha M., and Smith, Christopher G., 20170811, Chincoteague Bay surface metals data from the spring sampling trip of 2014: U.S. Geological Survey Data Series DS1059.

    Online Links:

    This is part of the following larger work.

    Ellis, Alisha M., and Smith, Christopher G., 20170811, A Seasonal and Spatial Distribution of Metals, and Stable Carbon and Nitrogen Isotopes, in Chincoteague Bay and the Marsh Deposits of Assateague Island and the Adjacent Vicinity, Maryland and Virginia: U.S. Geological Survey Data Series DS1059, U.S. Geological Survey– St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -75.46667
    East_Bounding_Coordinate: -75.11111
    North_Bounding_Coordinate: 38.26667
    South_Bounding_Coordinate: 37.82222
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 26-Mar-2014
    Ending_Date: 30-Oct-2014
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: tabular digital data
  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?
    Entity_and_Attribute_Overview:
    The detailed attribute descriptions for the metals data are provided in the included data dictionary ((https://pubs.usgs.gov/ds/1059/surface-sediment-characteristics/data downloads/Supplemental/Metals_Data-Dictionary.pdf). These metadata are not complete without this file.
    Entity_and_Attribute_Detail_Citation:
    Data Dictionary for Metals Data Tables, in Ellis and others, A Seasonal and Spatial Distribution of Metals, and Stable Carbon and Nitrogen Isotopes, in Chincoteague Bay and the Marsh Deposits of Assateague Island and the Adjacent Vicinity, Maryland and Virginia: U.S. Geological Survey Data Series 1059, https://doi/org/10.3133/DS1059.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Alisha M. Ellis
    • Christopher G. Smith
  2. Who also contributed to the data set?
    U.S. Geological Survey
  3. To whom should users address questions about the data?
    U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
    Attn: Alisha M. Ellis
    Geologist
    600 4th Street South
    St. Petersburg, FL
    US

    (727) 502-8056 (voice)
    aellis@usgs.gov

Why was the data set created?

The 14CTB_Raw_Spring_Metals_SG_Data.zip file includes all raw values for 42 metals in each lagoonal surface sediment sample and land surface sediment sample collected in Chincoteague Bay in March and April 2014 by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center.

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: 2014 (process 1 of 2)
    At each sample location, the top 1 cm of the recovered, undisturbed surface material from the Ponar grab was subsampled for sediment characterization, placed in individual storage bags, and stored on ice. The surface samples were transported to the USGS SPCMSC. Person who carried out this activity:
    U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
    Attn: Alisha M. Ellis
    Geologist
    600 4th Street South
    St. Petersburg, FL
    U.S.

    (727) 502-8056 (voice)
    aellis@usgs.gov
    Date: 2015 (process 2 of 2)
    Metals concentrations were acquired by submitting between 0.9592 and 1.3259 grams (g) of dried and homogenized sediment to the USGS Central Mineral and Environmental Resources Science Center (CMERSC) in 25 mL glass scintillation vials for a 42-element analysis of concentrations (Taggart, 2002). 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. Person who carried out this activity:
    U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
    Attn: Alisha M. Ellis
    Geologist
    600 4th Street South
    St. Petersburg, FL
    U.S.

    (727) 502-8056 (voice)
    aellis@usgs.gov
  3. What similar or related data should the user be aware of?
    Taggart, J. E., 2002, Analytical methods for chemical analysis of geologic and other materials: Open File Report 02-0223.

    Online Links:


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

  1. How well have the observations been checked?
    The percent (%) and parts per million (ppm) metals data reported in the tables were analyzed at the USGS Central Mineral and Environmental Resources Science Center. These data were not independently verified for accuracy. Replicate analyses of all parameters are presented for quality assurance.
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This is a complete, processed metals data file for the spring for a Chincoteague Bay seasonal comparison archive.
  5. How consistent are the relationships among the observations, including topology?
    The data includes sample ID, latitude, longitude, and either percent or parts per million metals data for 42 elements for each sample.

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 referenced 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: Alisha M. Ellis
    600 4th Street South
    St. Petersburg, FL
    U.S.

    502-8056 (voice)
    aellis@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?
    Although these data were 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, 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.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: Microsoft Excel (version 2011) .xlsx Size: 0.044
      Network links: https://pubs.usgs.gov/ds/1059/data downloads/14CTB_Raw_Spring_Metals_SG_Data.zip
    • Cost to order the data: none

  5. Is there some other way to get the data?
    none
  6. What hardware or software do I need in order to use the data set?
    The spreadsheets included in this .zip file were created for use with Microsoft Excel 2011. They may also be viewed with the Microsoft Excel viewer or by downloading a Microsoft Compatibility Pack to view with older versions of Microsoft Excel.

Who wrote the metadata?

Dates:
Last modified: 11-Aug-2017
Metadata author:
U.S. Geological Survey St. Petersburg Coastal and Marine Science Center
Attn: Alisha M. Ellis
Geologist
600 4th Street South
St. Petersburg, FL
U.S.

(727) 502-8056 (voice)
aellis@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/DS1059_Spring_Metals_SG-met.faq.html>
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