Abstract

This dataset includes baseline short-lived radioisotope measurements from sediment cores collected throughout the Gulf of Mexico. Samples were analyzed by gamma spectrometry with High-Purity Germanium (HPGe) gamma-ray detectors (Canberra Coaxial Planar configuration) for total 210Pb (46.5 keV), 214Pb (295 keV and 351 keV), and 214Bi (609 keV) activities. The mean activity of the 214Pb (295 keV), 214Pb (351 keV), and 214Bi (609 keV) was used as a proxy for 226Ra activity and therefore the supported 210Pb that is produced in situ. The reported excess 210Pb (210Pbxs) is the difference of the total 210Pb and the supported 210Pb.

Comments

Data and metadata is made available by the Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) through a CC0 license in compliance with the Gulf of Mexico Research Initiative (GoMRI). The original dataset landing pages may be accessed at GRIIDC’s dataset monitoring webpage.

Purpose

The purpose of this dataset was to provide Gulf of Mexico-wide baseline measurements of surface sediment Pb-210 activities in advance of future oil spills. These baseline measurements can be used in the event of future oil spills as a reference to quantitatively assess impact and recovery.

Keywords

baseline, Pb210, sediment core, gamma spectrometry, short-lived radioisotope

UDI

R6.x805.000:0007

Date

10-24-2018 12:00 AM

Point of Contact

Schwing, Patrick
University of South Florida
College of Marine Science
140 7th Ave South
St. Petersburg , FL 33701
USA
pschwing@mail.usf.edu

Funding Source

RFP-VI

Start of Data Collection

7-11-2010

End of Data Collection

7-20-2017

DOI

https://doi.org/10.7266/n7-122c-pa67

Rights Information

Creative Commons License
This work is licensed under a Creative Commons Public Domain Dedication 1.0 License.

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