Seymour Island Sediment Analysis for K-Pg Extinction Study

Sediment samples from Seymour Island in Antarctica target the Cretaceous-Paleogene boundary to evaluate extinction patterns. A 4-year project led by the AMD_USAPDC organization applies microfossil, petrology, and geochemistry techniques. The dataset supports research into whether the end-Cretaceous mass extinction was a single or double-phased event.

Use Cases

• Classify extinction patterns (single vs. double-phased) using microfossil evidence like foraminifera and nannofossils.
• Model paleoenvironmental conditions (restricted vs. open shelf) using geochemical data for anoxia and euxinia.
• Correlate stratigraphic intervals using detailed sedimentary petrology and geochemistry features.
• Analyze facies changes across the K-Pg interval using sedimentary structure and geochemistry data.

Strengths

• Data originates from a 4-year dedicated research project.
• Analysis applies multiple techniques: microfossil, petrology, and geochemistry.

Limitations

• Specific row count, column names, and sample size are unknown.
• Data collection is focused on a single location (Seymour Island), limiting geographic generalizability.

Provenance

Source

AMD_USAPDC organization via NASA EarthData.

Collection Method

Sediment core samples analyzed for microfossils, sedimentary petrology, and geochemistry.

Time Range

Cretaceous-Paleogene boundary interval.

Freshness

Last updated date is projected for 2026-08-31.

Geography

Seymour Island, Western Antarctic Peninsula.