Published July 7, 2025 | Version v1
Dataset Open

IODP Expedition 401 Bulk Density (GRA)

Description

Gamma ray attenuation (GRA) data were acquired using a Cs-137 collimated source and a sodium iodide (thallium), or NaI(Tl), scintillation detector. The signal was calibrated using water and aluminum standards to provide a proxy for bulk density. This measurement was performed by a sensor mounted on either the Whole-Round Multisensor Logger (WRMSL) or the Special Task Multisensor Logger (STMSL); which track was used for a given data set is indicated in the data.

Files

GRA-README.txt

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Additional details

Related works

Is documented by
Publication: 10.14379/iodp.proc.401.2025 (DOI)

Funding

U.S. National Science Foundation
Management and Operations of the JOIDES Resolution as a Facility for the International Ocean Discovery Program (IODP) 1326927