Magnetostratigraphic data from late Cretaceous sediments in the James Ross Basin, Antarctica, collected to refine geomagnetic reversal positions. The project was conducted by AMD_USAPDC, with fieldwork supported by the Instituto Antartico Argentino in 2014.
Use Cases
- Correlating the top of the Cretaceous Long Normal Chron to southern hemisphere biostratigraphy using collected sample data.
- Refining the position of geomagnetic reversals between the end of the Cretaceous long normal Chron and Chron 31R using magnetic polarity measurements.
- Calibrating the biostratigraphic position of geological correlation horizons at the Brandy Bay locality with magnetic stratigraphy data.
Strengths
- Data focuses on the Brandy Bay locality, described as the best place in the basin for calibrating the top of the Cretaceous Long Normal Chron.
- Project based on a collaboration with Argentine scientific institutions, suggesting international data validation.
Limitations
- Specific sample count, row count, and measured column data are unknown.
- Data is from a single expedition in 2014, with no indication of ongoing updates or expanded temporal coverage.
- Geographic scope is limited to one specific basin in Antarctica.
Provenance
- Source
- AMD_USAPDC via NASA EarthData.
- Collection Method
- Field collection of sediment samples during an expedition to James Ross Island.
- Time Range
- Late Cretaceous period.
- Freshness
- null
- Geography
- James Ross Island Basin, Antarctica.