Approximately 1,100 samples of calcareous nanoplankton from the Larsen Basin in Antarctica and southern Patagonia in South America. The Instituto Antartico Argentino compiled this data, with investigations coordinated with institutions in Switzerland, Spain, and the USA. Research focuses on the Campanian-Maestrichtian and Paleocene periods, particularly events around the Cretaceous-Paleogene (K/T) boundary.
Use Cases
- Correlating biostratigraphical zonation using calcareous nannofossil, foram, and diatom data across the Campanian-Maestrichtian to Paleocene timeline.
- Investigating paleoceanographic conditions during the Upper Cretaceous by analyzing fossil assemblage data from the Larsen Basin.
- Studying the K/T boundary event through specific features like glaucony presence, condensed sequence indicators, and biostratigraphical event markers.
- Comparing evolutionary schemes and extinction patterns between Antarctic (Larsen Basin) and South American (Patagonia) sample sites.
Strengths
- Approximately 1,100 physical samples providing a material basis for analysis.
- Data integrates multiple microfossil groups: calcareous nannofossils, foraminifera, and diatoms for cross-verification.
Limitations
- Sample count of ~1,100 may be insufficient for high-resolution statistical or machine learning models across multiple stratigraphic layers.
- Specific columnar data structure, measurements, and sample-level metadata are unknown, limiting immediate analytical use.
- Temporal recency of the dataset and update schedule are unspecified.
Provenance
- Source
- Instituto Antartico Argentino Antarctic Data Base, with later investigations at ETH-Zentrum (Switzerland) and University of Salamanca (Spain).
- Collection Method
- Sample collection and laboratory analysis of calcareous nanoplankton and other microfossils.
- Time Range
- Campanian-Maestrichtian (Late Cretaceous) to Paleocene periods, focusing on the Cretaceous-Paleogene (K/T) boundary.
- Freshness
- null
- Geography
- Larsen Basin, Antarctica and southernmost Patagonia, South America.