One page article discussing aspects of Australian stratigraphy; this article discusses the issues to consider when reviewing and/or revising a unit or the stratigraphy of an area.

One page article discussing aspects of Australian stratigraphy; this article discusses new unit definitions, ne regional publications and changes to the membership of the Australian Stratigraphy Commission.

Palaeogrographic analysis of the Early Cretaceous South Perth Supersequence.

part-page article on stratigraphic issues

Discusses requirements of a stratigraphic unit definition and why geoscientists should write more of them, where to research background information, where to get advice, and what standards apply.

One page article discussing aspects of Australian stratigraphy; this article discusses practical Australian solutions to igneous nomenclature and the indexing of relevant Antarctic units

One page article discussing aspects of Australian stratigraphy; this article is about the need for more unit definitions.

Poster about the Woolshed Creek fossil site discovered by W.B. Clarke in 1844 now being rehabilitated as a geological heritage site, after Madura Parkway roadworks.

The advent of Chemical Abrasion-Isotope Dilution Thermal Ionisation Mass Spectrometry (CA-IDTIMS) has revolutionised U-Pb dating of zircon, and the enhanced precision of eruption ages determined on volcanic layers within basin successions permits an improved calibration of biostratigraphic schemes to the numerical timescale. The Guadalupian and Lopingian (Permian) successions in the Sydney, Gunnedah, Bowen and Canning basins are mostly non-marine and include numerous airfall tuff units, many of which contain zircon. The eastern Australian palynostratigraphic scheme provides the basis for much of the local correlation, but the present calibration of this scheme against the numerical timescale depends on a correlation to Western Australia, using rare ammonoids and conodonts in that succession to link to the standard global marine biostratigraphic scheme. High-precision U¿Pb zircon dating of tuff layers via CA-IDTIMS allows this tenuous correlation to be circumvented¿the resulting direct calibration of the palynostratigraphy to the numerical timescale highlights significant inaccuracies in the previous indirect correlation. The new data show: the top of the Praecolpatites sinuosus (APP3.2) Zone lies in the early Roadian, not the middle Kungurian; the top of the Microbaculispora villosa (APP3.3) Zone lies in the middle Roadian, not the early Roadian; the top of the Dulhuntyispora granulata (APP4.1) Zone lies in the Wordian, not in the latest Roadian; the top of the Didecitriletes ericianus (APP4.2) Zone lies in the first half of the Wuchiapingian, not the latest Wordian; the Dulhuntyispora dulhuntyi (APP4.3) Zone is exceptionally short and lies within the Wuchiapingian, not the early Capitanian; and the top of the Dulhuntyispora parvithola (APP5) Zone lies at or near the Permo-Triassic boundary, not in the latest Wuchiapingian.

Discussion of available stratigraphic resources: the Australian Stratigraphic Units Database (ASUD); documentation of procedures for modifying existing units or establishing new ones; contact details for the Australian Stratigraphy Commission members and ASUD staff. Suggestions on ways of raising awareness through modern media such as a podcast or app, and a request for feedback on what sort of approach might appeal to a university student audience.