Triple-Dated Detrital Crystals from Antarctic Gamburtsev Mountains

Antarctic detrital zircon and apatite crystals from Prydz Bay are analyzed using triple-dating thermochronometry methods (U/Pb, fission track, and (U/Th)/He). The data originates from a Small Grant for Exploratory Research project funded by the NSF (ANT08-16934) and managed by the AMD_USAPDC organization. The project's last update was recorded in January 2009.

Use Cases

• Reconstructing the cooling and exhumation history of the Gamburtsev Mountains by analyzing low-temperature thermochronometry data from (U/Th)/He and fission track methods.
• Dating high-temperature orogenic events using U/Pb isotopic ratios measured on detrital zircon and apatite crystals.
• Investigating the potential post-ice-sheet formation age of the mountains by correlating thermochronometric ages with known glacial histories.
• Assessing sediment provenance in Prydz Bay by comparing the triple-dated crystal signatures with known bedrock ages.

Strengths

• Applies a combined triple-dating thermochronometry technique sensitive to both high and low temperature geological processes.
• Data is derived from samples obtained by the systematic Ocean Drilling Program.

Limitations

• The dataset is from 2009 and may not reflect more recent analytical techniques or findings.
• Specific sample count, row count, and data granularity are unknown.
• Data is focused on a single location (Prydz Bay) and may not represent the entire Gamburtsev Mountain range.

Provenance

Source

NSF Small Grant for Exploratory Research (SGER) project NSF-ANT08-16934, managed by AMD_USAPDC.

Collection Method

Analytical thermochronometry (U/Pb, fission track, (U/Th)/He) performed on detrital zircon and apatite crystals from Ocean Drilling Program cores.

Time Range

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Freshness

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Geography

Samples sourced from Prydz Bay, Antarctica, studying the subglacial Gamburtsev Mountains.