Biostratigraphy of Rig Seismic samples from Vening Meinesz seamounts, Christmas Island are

Eight dredge hauls from BMR cruise 107 collected samples from seamounts in the Vening Meinesz chain south of Christmas Island. The Australian Ocean Data Network provides this dataset, which contains calcareous nannofossils, foraminiferids, and macrofossils indicating ages from the Late Cretaceous to the Holocene. The data suggests a history of volcanic seamount building, atoll formation, and changing depositional depths over time.

Use Cases

• Reconstructing paleoenvironmental conditions based on fossil assemblages indicating water depth and temperature.
• Modeling seamount volcanic history and subsidence based on age ranges and lithology mixtures.
• Analyzing debris flow events and sediment transport based on mixed-age sample compositions.
• Studying Late Cretaceous to Eocene subtropical/tropical marine ecosystems based on shallow-water fossil evidence.

Strengths

• Samples span a significant geological time range from the Late Cretaceous to the Holocene.
• Data includes multiple fossil types (calcareous nannofossils, foraminiferids, macrofossils) for cross-verification.
• Samples originate from eight distinct dredge hauls across several seamounts, providing spatial coverage.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Samples collected from eight dredge hauls during BMR cruise 107.

Time Range

Late Cretaceous to Holocene

Freshness

Last updated 2026-06 27 19:26:53.499779; freshness should be verified

Geography

Vening Meinesz seamounts, south of Christmas Island, northeastern Indian Ocean