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

Samples from eight dredge hauls collected during BMR cruise 107 from seamounts in the Vening Meinesz chain, south of Christmas Island. The data includes calcareous nannofossils, foraminiferids, and fragmentary macrofossils with ages ranging from the Late Cretaceous to the Holocene. The dataset is provided by Geoscience Australia Data and was last updated in April 2026.

Use Cases

• Reconstructing paleoenvironmental conditions based on described Late Cretaceous shallow-water to upper bathyal assemblages.
• Analyzing seamount volcanic history and subsidence based on age ranges and lithology mixtures suggestive of debris flows.
• Studying paleoclimate and latitudinal shifts based on described warm sea conditions and subtropical/tropical water temperatures in the Eocene.
• Modeling depositional depth changes over time from Cretaceous to Neogene based on described assemblage characteristics.

Strengths

• Samples cover a wide temporal range from the Late Cretaceous to the Holocene.
• Data includes multiple fossil groups: calcareous nannofossils, foraminiferids, and fragmentary macrofossils.
• Sourced from eight distinct dredge hauls during a specific research cruise (BMR 107).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Samples collected from eight dredge hauls during BMR cruise 107.

Time Range

Late Cretaceous to Holocene

Freshness

Last updated 2026-04-20 01:46:39.801931; freshness should be verified.

Geography

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