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Black Point

Author

Shire of Nannup

Place Number

04483
There no heritage location found in the Google fusion table.

Location

Black Point Rd Lake Jasper

Location Details

20km from milyanup homestead, 37km from Augusta. 20km SE of Milyanup.

Local Government

Nannup

Region

South West

Construction Date

Demolition Year

N/A

Statutory Heritage Listings

Type Status Date Documents More information
Heritage List Adopted 26 Mar 2015

Heritage Council Decisions and Deliberations

Type Status Date Documents
(no listings)

Other Heritage Listings and Surveys

Type Status Date Grading/Management More information
Category Description
Register of the National Estate Indicative Place

Heritage Council
Aboriginal Heritage Sites Register Registered

Heritage Council
Classified by the National Trust Classified {Lscpe} 27 Sep 1991

Heritage Council

Statement of Significance

Black Point is an important outcrop of the rarely exposed Bunbury Basalt, the only post Pre-Cambrian volcanic event in the geological evolution of the Perth Basin. The basalt displays perfectly formed columnar jointing, a structure developed as a result of stresses developed when the basalt cooled and solidified in Cretaceous times. It is an important scientific research site.

Physical Description

The site includes two prominent cliffed headlands on the south coast of the D'Entrecasteaux National Park, about 1.1km apart. Both display spectacular exposures of the Bunbury Basalt. This formation forms part of the Perth Basin sequence and is rarely exposed at surface, though it is well known from drill intersections and geophysical studies. The formation also provides an important aquifer in the Bunbury region. The basalt shows well developed columnar cooling structures and has well developed sheet jointing. Basalt has been eroded along these joints to form a terraced outcrop. Black Point is the only site in the Perth Basin where late injection basaltic dykes occur.

Other Reference Numbers

Ref Number Description
005 Shire of Nannup MHI

Other Keywords

Categories of Significance:
- Educational
- Scientific

State Heritage Office library entries

Library Id Title Medium Year Of Publication
2368 Black Point : nomination of a geological monument for the register of the National Estate. Book 1991

Place Type

Geological monument

Uses

Epoch General Specific
Present Use OTHER Other
Original Use OTHER Other

Historic Themes

General Specific
SOCIAL & CIVIC ACTIVITIES Education & science

Creation Date

21 Aug 1995

Publish place record online (inHerit):

Approved

Last Update

26 Jul 2023

Disclaimer

This information is provided voluntarily as a public service. The information provided is made available in good faith and is derived from sources believed to be reliable and accurate. However, the information is provided solely on the basis that readers will be responsible for making their own assessment of the matters discussed herein and are advised to verify all relevant representations, statements and information.