Abstract

This project is based on the recognition that combinations of specific granite types and distinctive host rocks tend to be associated with certain types of Au, Cu, Zn, Pb, Sn and W mineralisation. Rarely is Proterozoic mineralisation hosted by granites themselves, for the most part being hosted in the country rock, often three or more kilometres from the nearest known granite. There is an apparent host rock control on the deposition of metals: this can be both compositional and also controlled by the competency of the host lithologies. This compositional host rock control has been documented by Stuart-Smith et al. (1993 - Geology and mineral deposits of the Cullen Mineral field, AGSO Bull. 229) for the Pine Creek Inlier and noted in the eastern Mount Isa Inlier by Wyborn and Heinrich (1993 - The relationship between late-tectonic felsic intrusives and Cu-Au mineralisation in the Eastern Fold Belt, Mount Isa Inlier, Trans Royal Soc Edinburgh, Earth Sci, 83, 201-209). This project collated data on the Proterozoic granites and their comagmatic volcanics, the mineralogical composition of the rocks that they intrude and briefly assessed the style and type of mineralisation present within 5 kms of an outcrop of granite. All data collated in the reports is built into the accompanying GIS, and essentially each item listed in the report is converted into a searchable item within the GIS. This project has aimed to provide the data and interpretations to show the following: 1) Which Proterozoic granites have metallogenic potential, 2) What commodities they are likely to be associated with, and 3) Where the better host rocks are located that are likely to host potential mineralisation. <p>Related material<a href="https://www.ga.gov.au/products/servlet/controller?event=GEOCAT_DETAILS&amp;catno=33388">The metallogenic potential of Australian Proterozoic granites. GA Record 2001/012.</a></p>
Google map showing geographic bounding box with values North bound -8.98 East bound 154.5 West bound 112.5 South bound -43.75
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Product Type/Sub Type

dataset - GIS Dataset - National

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2001

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

GIS Dataset
National
metallogenesis
geochemistry
geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-8.98
East bound
154.5
West bound
112.5
South bound
-43.75

Lineage

Geological layers of the dataset consist of GRANITE and SEDIMENT coverages that represent distribution of the Proterozoic rocks Australia-wide. The original data of the coverages were digitised from published maps at 1:100,000, 1:250,000 and 1:500,000 scale using ArcInfo software. Only polygons representing units of Proterozoic age were selected for the coverages. Map-Symbol fields of the existing maps were used for selecting the polygons. Point layer contains ROCKCHEM coverage showing locations of geochemical samples of granitic and volcanic rocks used by the project. Data source: 1:100,000, 1:250,000 and 1:500,000 scale published geological maps, Geoscience Australia OZROX Database, State Survey geochemical databases Projection information: the original data were captured in UTM Projection, Australian National Spheroid, AGD66 Datum. For the final release all data were converted to Geographic Projection, GRS80 Spheroid, GDA94 Datum using Geoscience Australia data projection files. Province compilation scale: 1:100.000 scale - Arnhem Land, Broken Hill, Georgetown, King Island and Paterson; 1:250,000 scale - Albany Fraser, Arunta, Curnamona, Gascoyne, Gawler, Kimberley, Leeuwin, McArthur Basin, Musgrave, Pilbara, Pine Creek, Tanami and Tennant Creek; 1:500,000 scale - Mt Isa and Olary

Digital Transfer Options

onLine

DISTRIBUTION Format

misc

Distributor

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

Metadata File Identifier

a05f7892-b557-7506-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 Date Stamp

2001-02-19

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays