Palynostratigraphy of Four Boreholes in the Central West Murray Basin

Geoscience Australia Data provides palynological analyses from four fully cored boreholes in the central west Murray Basin. The data includes analyses from the Woodlands-1, Manilla-1, Piangil West-2, and Hatfield-1 holes, augmented by reference to other sequences. The study aims to provide a biostratigraphic framework for geological factors related to groundwater, covering intervals from the Early Cretaceous to the Middle Miocene.

Use Cases

• Correlating geological strata based on pollen and dinoflagellate assemblages mentioned in the description.
• Modeling groundwater flow by analyzing the confining aquitard properties of the Geera Clay facies described.
• Studying paleoclimate shifts from the Late Oligocene to earliest Miocene based on described vegetation changes.
• Refining regional biostratigraphic zonal schemes (e.g., Nothofagidites asperus Zones) for the Cainozoic sequence.

Strengths

• Data is derived from four fully cored boreholes, providing direct subsurface samples.
• Analysis covers a wide temporal range, from Early Cretaceous to Middle Miocene.
• Study is augmented by analysis of cores and cuttings from additional boreholes and reference to previously studied sequences.

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 palynological zones is too poor to identify pulses of marine transgression with global sea-level curves.

Provenance

Source

Geoscience Australia Data

Collection Method

Palynological analysis of fully cored boreholes, augmented by analysis of additional cores and cuttings.

Time Range

Early Cretaceous to Middle Miocene

Freshness

Last updated 2026-04-20 03:34:39.694564; freshness should be verified.

Geography

Central west Murray Basin, Australia, including the Wentworth Trough.