Indo-Pacific Oligocene-Miocene Boundary Biostratigraphy Data

The Indo-Pacific region provides data from three marginal-marine sections and deep oceanic sediments. The dataset likely contains biostratigraphic records of nannofossils and planktic foraminifera, focusing on species like Globigerinoides quadrilobatus primordius and Sphenolithus ciperoensis. It was aggregated by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Calibrating biostratigraphic zones based on the lowest occurrence of Globigerinoides quadrilobatus primordius.
• Analyzing depth-related stratigraphic patterns in fossil appearances.
• Investigating the overlap of planktic foraminiferal Zones N.3 and N.4.
• Delineating the Oligocene-Miocene transition interval using nannofossil extinction and range base datums.
• Studying changes in carbonate compensation depth and lysocline thickness during the latest Oligocene.

Strengths

• Focuses on a specific geological boundary (Oligocene-Miocene) with detailed stratigraphic analysis.
• Compares data from multiple sediment types (marginal-marine and deep oceanic).
• References specific fossil species and biostratigraphic events for calibration.

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

Time Range

Oligocene-Miocene boundary period

Freshness

Last updated 2026-04-16 08:56:05.156171; freshness should be verified

Geography

Indo-Pacific region