Geochemistry of Taylor Valley Stream Waters and Sediments

Field and laboratory data investigate chemical weathering processes in the polar desert streams of Taylor Valley, Antarctica. The dataset includes analyses of stream waters and sediments for major, minor, trace elements, and isotopic ratios like 87Sr/86Sr. Research was conducted by collaborators from multiple institutions, including Tulane University and the University of Alabama.

Use Cases

• Analyze correlations between major ion concentrations in stream water and specific rock types from laboratory freeze-thaw experiments.
• Model the relationship between 87Sr/86Sr isotopic ratios in sediments and potential weathering sources in the valley.
• Investigate the release patterns of trace elements from crushed rocks under simulated Antarctic freeze-thaw cycles.
• Compare uranium decay series (238U, 235U) data from stream waters with data from closed-basin lake waters to understand hydrological connections.

Strengths

• Data covers both field observations and controlled laboratory experiments, providing complementary evidence.
• Analyses include a large suite of chemical parameters, from major ions to trace elements and isotopic ratios.

Limitations

• Specific sample counts, temporal coverage, and geographic coordinates for field collections are not provided.
• The dataset's structure, file formats, and total size are unspecified, complicating initial assessment.

Provenance

Source

SCIOPS, with contributions from Tulane University, University of Alabama, and Ohio State University.

Collection Method

Field collection and laboratory analysis of stream waters, sediments, and controlled rock dissolution experiments.

Geography

Taylor Valley, Antarctica.