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GSWA Explanatory Notes

Department of Mines, Industry Regulation and Safety

Geological Survey of

Western Australia

www.dmirs.wa.gov.au

Perth Basin (PH)

CM THOMAS, AJ Mory, and RM Hocking

Type

Basin

Lithology

sedimentary and volcanic rocks

Parent unit

Phanerozoic basins

Child units

Child Units

Constituent lithostratigraphic units

––

Affected by events

Mid-Miocene transgression, 15 Ma

Wilson Bluff transgression, 42 Ma

Kings Park transgression, 56 Ma

Jurassic - Early Cretaceous rifting, Perth Basin

Gondwana breakup - western margin

Upper Triassic - Early Jurassic rifting, Perth Basin

Permian rifting, Perth Basin

Gondwana breakup - southern margin

Tectonic setting

basin: continental margin

Summary

No summary narrative found.

Distribution

No distribution narrative found.

Description

No description narrative found.


Geochronology
Perth Basin	Maximum age	Minimum age
Age (Ma)	485	0
Age	Paleozoic	Cenozoic

No geochronology narrative found.


Contact relationships

No contact relationship narrative found.

Tectonic setting

No tectonic setting narrative found.

BookMark


Child units
Tectonic unit name	Unit code	Age (Ma)	Type
Houtman Sub-basin	PNH	299–0	Sub-basin
Zeewyck Sub-basin	PNZ	201–0	Sub-basin
Turtle Dove Ridge	PNT	299–0	Sub-basin
Abrolhos Sub-basin	PNA	299–0	Sub-basin
Beagle Ridge	PNB	323–0	Sub-basin
Cadda Terrace	PNC	323–0	Sub-basin
Donkey Creek Terrace	PNK	323–0	Sub-basin
Dongara Terrace	PNN	323–66	Sub-basin
Beharra Springs Terrace	PNE	323–66	Sub-basin
Dandaragan Trough	PND	323–66	Sub-basin
Coomallo Trough	PNM	323–66	Sub-basin
Yarra Yarra Terrace	PNY	323–66	Sub-basin
Bookara Shelf	PNR	323–66	Sub-basin
Allanooka Terrace	PNL	323–66	Sub-basin
Wicherina Terrace	PNW	323–66	Sub-basin
Beermullah Trough	PSE	323–0	Sub-basin
Vlaming Sub-basin	PSA	323–0	Sub-basin
Mandurah Terrace	PSM	323–0	Sub-basin
Barberton Terrace	PSR	323–0	Sub-basin
Yallingup Shelf	PSY	299–0	Sub-basin
Treeton Terrace	PST	299–66	Sub-basin
Vasse Shelf	PSV	299–66	Sub-basin
Bunbury Trough	PSB	299–0	Sub-basin
Collie Sub-basin	PSC	299–66	Sub-basin
Wilga Sub-basin	PSI	299–252	Sub-basin
Boyup Sub-basin	PSO	299–252	Sub-basin
Irwin Terrace	PNI	323–66	Sub-basin
Greenough Shelf	PNG	485–66	Sub-basin
Coolcalalaya Sub-basin	PNX	485–252	Sub-basin

Recommended reference for this publication

THOMAS, CM, Mory, AJ and Hocking, RM (partial report), Perth Basin (PH): Geological Survey of Western Australia, WA Geology Online, Explanatory Notes extract, viewed 05 August 2025. <www.dmp.wa.gov.au/ens>

This page was last modified on 28 February 2025.

Grid references in this publication refer to the Geocentric Datum of Australia 1994 (GDA94). Locations mentioned in the text are referenced using Map Grid Australia (MGA) coordinates, Zones 49 to 52. All locations are quoted to at least the nearest 100 m.

Capitalized names in text refer to standard 1:100 000 map sheets, unless otherwise indicated.

WAROX is GSWA’s field observation and sample database. WAROX site IDs have the format ‘ABCXXXnnnnnnSS’, where ABC = geologist username, XXX = project or map code, nnnnnn = 6 digit site number, and SS = optional alphabetic suffix (maximum 2 characters).

All isotopic dates are based on U–Pb analysis of zircon and quoted with 95% uncertainties, unless stated otherwise. U–Pb measurements of GSWA samples were conducted using a sensitive high-resolution ion microprobe (SHRIMP) in the John de Laeter Centre at Curtin University, Perth, Western Australia.

Digital data related to WA Geology Online, including geochronology and digital geology, are available online at the Department’s Data and Software Centre and may be viewed in map context at GeoVIEW.WA.

Further details of geological publications and maps produced by the Geological Survey of Western Australia are available from:

Information Centre

Department of Mines, Industry Regulation and Safety

100 Plain Street

EAST PERTH, WA 6004

Telephone: +61 8 9222 3459 Facsimile: +61 8 9222 3444

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