Abstract

Geological work in the Territory since 1946 has provided more information on the composition of the so-called "porcelianite" which occupies much of the higher ground in the Peninsula on which the town of Darwin is built. This "porcelianite" is actually a fossil soil horizon and represents silicified lower zones of a laterite profile developed on Lower Cretaceous shales during Tertiary time. It is certain that at least some of the silica cementing the rock is in opaline form. The occurrence, distribution, types, and uses of opaline-material in the Northern Territory are discussed in this report. The results of testing conducted on aggregate samples are recorded, and recommendations are set down for further investigation of opaline-material.
Google map showing geographic bounding box with values North bound -10.5 East bound 138.0 West bound 129.0 South bound -26.0
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Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1949-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

9501 Product http://www.ga.gov.au/metadata-gateway/metadata/record/9501/

Keywords

GA Publication
Record
geology
petrology
AU-NT
Geology

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-10.5
East bound
138.0
West bound
129.0
South bound
-26.0

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

a05f7892-8112-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
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