Supplementary datasets from Mulder et al. (2019) Geology article include Pb-isotope data for feldspar and U-Pb data for zircon and monazite. The data characterize igneous and metamorphic rocks from Indo- and Australo-Antarctica between 50°E and 120°E. Analyses include onshore basement rocks and offshore detrital grains from Pleistocene and Holocene sediments.
Use Cases
- Mapping tectonothermal provinces based on feldspar Pb-isotope signatures.
- Testing offshore detrital feldspar as a proxy for onshore basement geology.
- Investigating subglacial geology near Mirny Station using detrital mineral grains.
- Assessing sediment provenance signals with depth in sediment cores.
- Correlating glacial and oceanographic context with sample provenance.
Strengths
- Data is supplementary to a peer-reviewed Geology article (Mulder et al., 2019).
- Includes new analyses from 31 Archean–Cambrian samples from Australo-Antarctica.
- Combines multiple proxies: feldspar Pb-isotope, zircon U-Pb, and monazite U-Pb data.
Limitations
- Row count is unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- Last updated 2018-12-30 23:59:59.999000; freshness should be verified.
Provenance
- Source
- AU_AADC via nasa_earthdata
- Collection Method
- Laser ablation–quadrupole–inductively coupled plasma–mass spectrometry (LA-Q-ICP-MS) for feldspar Pb-isotopes; U-Pb analysis for zircon and monazite.
- Time Range
- Samples include Archean–Cambrian basement rocks and Pleistocene/Holocene sediments.
- Geography
- Indo-Antarctica and Australo-Antarctica (50°E to 120°E), including Prydz Bay and the Mirny region coastline.