86% of dated volcanic samples from Mt. Waesche correlate with interglacial periods, suggesting a strong link between ice sheet changes and volcanic activity. This dataset integrates petrologic records, 40Ar/39Ar eruption ages, and geodynamic modeling to study glaciation's effects on crustal stress. It was published by AMD_USAPDC via NASA EarthData and was last updated in July 2024.
Use Cases
- Correlate 40Ar/39Ar eruption ages with interglacial periods to test hypotheses on ice sheet unloading triggering eruptions.
- Model crustal stress changes using constraints on temporal variations in West Antarctic Ice Sheet thickness.
- Analyze whole rock and mineral compositions to determine how pre-eruptive magma storage conditions differ between glacial and interglacial periods.
- Compare estimated ice sheet elevation changes from geodynamic models with cosmogenic exposure age data from shallow drilling.
Strengths
- Data reveals a strong correlation, with 86% of dated samples from Mt. Waesche linked to interglacial periods.
- Integrates multiple data types: petrologic records, isotopic ages, and geodynamic modeling constraints.
- Focuses on a specific, late Quaternary volcano (Mt. Waesche) for a detailed case study.
Limitations
- Sample size for dated volcanic rocks is not specified, potentially limiting statistical power.
- Geographic scope is limited to a single volcano in Marie Byrd Land, Antarctica.
- The raw dataset structure, specific columns, and file formats are unknown.
Provenance
- Source
- NASA EarthData, contributed by organization AMD_USAPDC.
- Collection Method
- Combines petrologic analysis of volcanic rocks, 40Ar/39Ar isotopic dating, and geodynamic modeling.
- Time Range
- Late Quaternary volcanic record.
- Freshness
- Last updated in July 2024.
- Geography
- Mt. Waesche, Executive Committee Range, Marie Byrd Land, Antarctica.