Abstract
This dataset contains short-lived radioisotope (SLRad) data collected aboard R/V Justo Sierra cruise JS-0815 in the southern Gulf of Mexico from 2015-07-31 to 2015-08-08. SLRad data were generated for selected core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to the base of cores. SLRad data generated include sample activity as disintegrations per minute per gram (dpm/g) of 1) Excess Thorium-234 (234Thxs) activity, which is calculated by measuring the total Thorium-234 (234ThTot) activity and the subtraction of the measured or estimated “supported” Thorium-234 (234ThSup) activity, 2) Excess Lead-210 (210Pbxs) activity, which is calculated by measuring the total Lead-210 (210PbTot) activity and subtraction of the measured background "supported" Lead-210 (210PbSup) activity {average of Lead-214 (214Pb) at 295 kiloelectron volts (keV), 214Pb at 351keV, and Bismuth-214 (214Bi) at 609keV}, 3) Cesium-137 (137Cs) activity, and 4) Berilium-7 (7Be) activity. The cruise documentation was provided for the R/V Justo Sierra cruise JS-0815. The cruise was led by chief scientist Dr. David Hollander.
Purpose
Provide age control and sedimentation rates for sediment cores
Keywords
Sediment Core, Short-lived Radioisotopes, benthic, sediment analysis, geological, multicorer, Lead, Thorium, Caesium, Beryllium, Bismuth
UDI
R4.x267.000:0124
Date
2-19-2019 12:00 AM
Point of Contact
Brooks, Gregg
Eckerd College
College of Marine Science
Natural Sciences Collegium Sheen Science Center, SHA-102
St. Petersburg , FL 33711
USA
brooksgr@eckerd.edu
Funding Source
RFP-IV
Start of Data Collection
7-31-2015
End of Data Collection
8-8-2015
DOI
https://doi.org/10.7266/n7-jm62-5b12
Rights Information
This work is licensed under a
Creative Commons Public Domain Dedication 1.0 License.
Scholar Commons Citation
Brooks, Gregg R. and Larson, Rebekka A., "Short-lived radioisotope (SLRad) data collected aboard R/V Justo Sierra cruise JS-0815 in the southern Gulf of Mexico from 2015-07-31 to 2015-08-08" (2019). C-IMAGE data. 37.
https://digitalcommons.usf.edu/cimage_data/37
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.
Data users are encouraged to contact the originating investigator prior to data use and provide appropriate credit.