Palynostratigraphy of the Central West Murray Basin from Four Cored Boreholes

The central west Murray Basin in Australia is the focus of this palynological analysis from four fully cored boreholes. The dataset likely contains pollen and dinoflagellate data used to establish a biostratigraphic framework for geological factors related to groundwater. The study, augmented by analysis from other boreholes, was produced by Geoscience Australia Data.

Use Cases

• Correlating aquifer ages based on pollen zones like the Middle and Upper Nothofagidites asperus Zones mentioned in the description
• Mapping the extent of marine incursions based on dinoflagellate assemblages referenced in the study
• Analyzing Late Oligocene to earliest Miocene climatic shifts based on described changes in pollen frequencies and vegetation
• Refining stratigraphic models for the Geera Clay aquitard using the Proteacidites tuberculatus and Triporopollenites bellus Zones detailed in the data

Strengths

• Analysis is based on four fully cored boreholes, providing direct subsurface samples
• Study is augmented by data from additional boreholes east of the main marine influence and references previously studied sequences
• Identifies pollen taxa with potential stratigraphic value that are unknown in other southeastern Australian basins

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• The description notes that 'resolution of the palynological zones is too poor' to identify specific pulses of marine transgression with global sea-level curves

Provenance

Source

Geoscience Australia Data

Collection Method

Palynological analyses of fully cored boreholes, augmented by analysis of cores and cuttings from other boreholes.

Time Range

Covers sediments from the Early Cretaceous to the Middle Miocene, with specific focus on mid-Eocene to earliest Oligocene aquifers and Late Oligocene to Middle Miocene deposits.

Freshness

Last updated 2026-04-30 14:16:42.239078; freshness should be verified

Geography

Central west Murray Basin, Australia, including the Wentworth Trough and areas east of the main marine influence.