Assateague Island sediment core radiochemistry data from March-April 2014, USGS Field Activity Number 2014-301-FA

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

Metadata:

Identification_Information
Data_Quality_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Christopher G. Smith
Originator: Marci E. Marot
Originator: Alisha M. Ellis
Originator: Cathryn J. Wheaton
Originator: Julie C. Bernier
Originator: C. Scott Adams
Publication_Date: 20150501
Title:

Assateague Island sediment core radiochemistry data from March-April 2014, USGS Field Activity Number 2014-301-FA

Geospatial_Data_Presentation_Form: tabular digital data
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2015-1169

Online_Linkage:

http://pubs.er.usgs.gov/publication/ofr20151169/data/14CTB_Alpha_Spec_Data.zip

Larger_Work_Citation:

Citation_Information:

Sedimentological and radiochemical characteristics of marsh deposits from Assateague Island and adjacent vicinity, Maryland and Virginia, following Hurricane Sandy

Edition: 1.0
Geospatial_Data_Presentation_Form: multimedia presentation
Series_Information:

Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2015-1169

Publication_Information:

Publication_Place: St. Petersburg, Florida
Publisher:

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

Online_Linkage: https://doi.org/10.3133/ofr20151169

Description:

Abstract:

The influence of tropical and extratropical cyclones on coastal wetlands and marshes is highly variable in both space and time and depends on a number of climatic, geologic, and physical variables. The impacts storms can be either positive or negative with respect to the wetland and marsh ecosystems. Small to moderate amounts of inorganic sediment added during storms or other events helps to abate pressure from sea-level rise. However, if the volume of sediment is large and the resulting deposits thick, the organic substrate may compact causing submergence and a loss in elevation. Similarly, thick deposits of coarse inorganic sediment may also alter the hydrology of the site and impede vegetative processes. Alternative impacts associated with storms include shoreline erosion at the marsh edge as well as potential emergence. Predicting the outcome of these various responses and potential long-term implications can be obtained from a systematic assessment of both historical and recent event deposits. The objectives of this study are to 1) characterize the surficial sediment of the relict to recent washover fans and back-barrier marshes, and 2) characterize the sediment of 6 marsh cores from the back-barrier marshes and a single marsh island core near the mainland. These geologic data will be integrated with other remote sensing data collected along Assateague Island, Maryland / Virginia and assimilated into an assessment of coastal wetland response to storms.

Purpose:

The 14CTB_Alpha_Spec_Data.zip file includes all alpha spectroscopy radiochemistry analysis results from the 8 marsh push cores and 1 auger core collected on Assateague Island and the mainland of Maryland and Virginia in March/April and October 2014 by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center.

Supplemental_Information:

This publication contains data for the field activities conducted in 2014: March 26 – April 4, 2014.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20140326
Ending_Date: 20140404

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -75.46667
East_Bounding_Coordinate: -75.11111
North_Bounding_Coordinate: 38.26667
South_Bounding_Coordinate: 37.82222

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:6617e0e5-0ca6-467c-bdb8-47ad766b5836

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: wetland
Theme_Keyword: sediment
Theme_Keyword: core
Theme_Keyword: radiochemistry
Theme_Keyword: alpha spectroscopy
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword:

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

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Maryland
Place_Keyword: Virginia
Place_Keyword: Assateague Island

Stratum:

Stratum_Keyword_Thesaurus: None
Stratum_Keyword: sediment
Stratum_Keyword: subsurface

Temporal:

Temporal_Keyword_Thesaurus: None
Temporal_Keyword: March 2014
Temporal_Keyword: April 2014

Access_Constraints: none
Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: Christopher G. Smith

Contact_Position: Research Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: US

Contact_Voice_Telephone: (727) 502-8035
Contact_Electronic_Mail_Address: cgsmith@usgs.gov

Data_Set_Credit: U.S. Geological Survey
Native_Data_Set_Environment:

Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; Microsoft Excel Version 2010

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.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The radioisotopic activities reported in the Excel spreadsheets include the counting error for all samples.

Logical_Consistency_Report:

The data include core ID, sample depth interval in core (cm), total Pb-210 activity, and total Pb-210 counting error.

Completeness_Report:

This is a complete processed radiochemistry data file for USGS FAN 2014-301-FA (14CTB).

Lineage:

Process_Step:

Process_Description:

At the USGS SPCMSC, the cores were extruded in 1-centimeter intervals and placed in labeled bags. The samples were refrigerated until further analysis.

Process_Date: 20150501
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: Christopher G. Smith

Contact_Position: Research Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: U.S.

Contact_Voice_Telephone: (727) 502-8035
Contact_Electronic_Mail_Address: cgsmith@usgs.gov

Process_Step:

Process_Description:

Each subsample (approximately 20-30 mL of wet sediment) was oven-dried at 60°C for 48 hours. The dried sediment was homogenized to a fine powder using a porcelain mortar and pestle. Total Pb-210 (via granddaughter polonium-210; [Po-210]) were determined by alpha spectroscopy following the procedure of Marot and Smith (2012). Briefly, approximately 1 – 5 g of sediment was spiked with a 0.5 mL of Po-209 of known activity (12 decays per minute per milliliter [dpm mL-1]). Sediments were leached with a combination of concentrated nitric and hydrochloric acid with the addition of 30 % H2O2 to remove organics. Sediments were taken to near dryness and re-saturated three times with hydrochloric acid until all nitric acid is removed. Po-209 and Po-210 were electroplated onto silver planchets and counted on an alpha spectrometer. Count rate efficiency for Po-209 were determined and applied to Po-210 counts. Total Pb-210 is then assumed to be in secular equilibrium with Po-210 in the down-core sediment.

Process_Date: 2014
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: Christopher G. Smith

Contact_Position: Research Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: U.S.

Contact_Voice_Telephone: (727) 502-8035
Contact_Electronic_Mail_Address: cgsmith@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

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: 14CTB Alpha Spec Data.xlsx
Entity_Type_Definition:

Alpha spectroscopy radiochemistry results of sediment cores collected on Assateague Island, Maryland.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: Core ID
Attribute_Definition: Marsh sediment core site number
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Unrepresentable_Domain: Core site identification number assigned by USGS scientist

Attribute:

Attribute_Label: Depth (cm)
Attribute_Definition: Sample interval depth measured from top of the core (cm)
Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0-1
Range_Domain_Maximum: 56-57

Attribute:

Attribute_Label: Total Pb-210 Activity (dpm/g)
Attribute_Definition:

Total Pb-210 specific activity measured in disintegrations per minute per gram of dry sediment at the date of field collection.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.033
Range_Domain_Maximum: 22.94

Attribute:

Attribute_Label: Total Pb-210 Activity Error (+/- dpm/g)
Attribute_Definition:

Total Pb-2107 specific activity counting error measured in disintegrations per minute per gram of dry sediment at the date of field collection.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.004
Range_Domain_Maximum: 0.555

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: Christopher G. Smith

Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: U.S.

Contact_Voice_Telephone: 502-8035
Contact_Electronic_Mail_Address: cgsmith@usgs.gov

Distribution_Liability:

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, 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.

Standard_Order_Process:

Fees: none
Digital_Form:

Digital_Transfer_Information:

Format_Name: Zip archive
Format_Version_Number: 1
Format_Specification: .zip
Transfer_Size: 0.038

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://pubs.er.usgs.gov/publication/ofr20151169/data/14CTB_Alpha_Spec_Data.zip

Resource_Description: Downloadable data
Custom_Order_Process: none
Technical_Prerequisites:

These spreadsheets included in this .zip file were created for use with Microsoft Excel 2010. It may also be viewed with the Microsoft Excel viewer or by downloading a Microsoft Compatibility Pack to view with older versions of Microsoft Excel. The .zip file also contains comma delimited files (.csv) of the radiochemsitry data for each core. The .csv data files contains the tabular data in plain text and may be viewed with a standard text editor.

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

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

Contact_Person: Christopher G. Smith

Contact_Position: Research Geologist
Contact_Address:

Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: U.S.

Contact_Voice_Telephone: (727) 502-8035
Contact_Electronic_Mail_Address: cgsmith@usgs.gov

Metadata_Standard_Name: FGDC 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

Metadata_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.

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/OFR20151169_Radiochemistry-met.html>