Radiogenic Sr, Nd and Pb isotope data and clay mineral abundances of the < 2 µm size fraction of ODP Hole 121-758A


The clay size fraction of the sediments from ODP Site 758 located in the southern Bay of Bengal on top of the Ninetyeast Ridge were studied to better understand South Asian Monsoon induced silicate weathering over the last 27 million years. The radiogenic Sr, Nd and Pb isotope data were measured by multi-collector ICP-MS and the the clay mineral abundances were calculated from X-Ray diffraction measurements. The age model used here incorporates age constraints from both ODP Site 758 and new data from a new multiple hole drill site nearby (International Ocean Discovery Program Site U1443).

Clay mineral abundances in weighted peak area percentage.The repeatability of the semi-quantitative clay mineral measurements was approximately 2%.

Related Identifier
Metadata Access
Creator Ali, Sajid ORCID logo; Hathorne, Ed C ORCID logo; Frank, Martin ORCID logo
Publisher PANGAEA
Publication Year 2021
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 617 data points
Discipline Earth System Research
Spatial Coverage (90.361 LON, 5.384 LAT); Indian Ocean
Temporal Coverage Begin 1988-06-15T23:50:00Z
Temporal Coverage End 1988-06-24T13:30:00Z