Ameroo Hill online mapping system

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.

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Dataset citation

ANZLIC unique identifier: ANZCW0703005361

Title: Ameroo Hill online mapping system

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Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia

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As part of the Broken Hill Exploration Initiative (BHEI), Geoscience Australia and the Department of Primary Industries South Australia (PIRSA) recently embarked on a two-year joint project to better understand the deformational history and tectonic evolution of Palaeoproterozoic rocks in the Outalpa Inlier, South Australia. To this end detailed structural and stratigraphic studies were undertaken around Ameroo Hill and Tommie Wattie Bore region in the central part of the inlier where a well defined stratigraphic succession is exposed. Comparable studies undertaken in other parts of the Olary Domain indicate that the same stratigraphy and structural history are developed across the entire Curnamona Province and that the structures developed around Ameroo Hill are not atypical of the province as a whole. Included in the Olary stratigraphy is the regionally extensive and highly prospective "Bimba Formation", a marble and calc-silicate dominated unit known for its high base-metal content (Pb, Zn, Mn, Cu, Co). Geochronological studies have recently confirmed this unit as a correlative of the Ettlewood Calc-silicate in the Broken Hill Group and there is growing geochronological evidence (Page et al., 2000) that other parts of the Olary sequence can be similarly matched to equivalent units in the Broken Hill Domain.

REFERENCE:

Page, R.W., Stevens, B.P.J., Gibson, G.M. and Conor, C.H.H., 2000. Geochronology of Willyama Supergroup rocks between Olary and Broken Hill, and a comparison to northern Australia. In Peljo, M. (compiler) Broken Hill Exploration Initiative Abstracts Volume, AGSO Record 2000/10: 72-75.

ANZLIC search words:

GEOSCIENCES Geology Maps
GEOSCIENCES Geophysics Maps

Spatial domain:

locality map

Geographic extent name: 6933 OLARY - 6933 - 1:100 000 Map Series - Australia

Geographic extent polygon: 140.1 -32.1, 140.25 -32.1, 140.25 -32.2, 140.1 -32.2, 140.1 -32.1,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:: North bounding latitude: -32.1 °; South bounding latitude: -32.2 °; East bounding longitude: 140.25 °; West bounding longitude: 140.1 °

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Data currency

Beginning date: 2003-07-11

Ending date: 2003-07-11

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Dataset status

Progress: In Progress

Maintenance and update frequency: Not Known

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Access

Stored data format:: DIGITAL - shp ArcView shape file ArcView GDA94

Available format type:: DIGITAL - shp ArcView shape file ArcView GDA94

Access constraints:

Licence required.

Order Product

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Data quality

Lineage:

The geology dataset was compiled from field observations during 2001-2002 fieldwork. The map was drafted using orthophotography, airborne magnetic imagery, magnetic susceptibility measurements and petrographic, petrologic and structural analysis.

The vector data were digitised and compiled using ArcInfo 8.0.2 before export to MapServer-compatible ESRI shape files.

Positional accuracy:

Data were interpreted and digitised at 1:10 000 scale.

Attribute accuracy:

The geological units are based on previous work by Conor (2000, 2001).

REFERENCES:

Conor, C.H.H., 2000. Definition of major sedimentary and igneous units of the Olary Domain, Curnamona Province. MESA Journal, 19: 51-56.

Conor, C.H.H., 2001. Geology of the Olary Domain, Curnamona Province, South Australia: Field Guide book. PIRSA, Adelaide.

Logical Consistency:

Attribute data for geological layers comply to the GA Geoscience Data Dictionary version 2002.04 -(http://www.ga.gov.au/standards/datadict.html). All lines, points and polygons in all layers are labelled and fully attributed. All care has been taken to ensure that all lines intersect at nodes (where applicable), no duplicate lines exist and all polygons are closed with no duplicate labels. Geological faults exist as dangling lines (overshoots) in polygon layers.

Completeness:

Data and basic descriptive attributes are complete (eg: MAG_SYMB for polygon data, and FEAT_CODE for line data).

The geological interpretation is complete as at 11-JUL-2003. The author reserves the right to make future ammendments in the light of new data or concepts.

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Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

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Metadata information

Metadata date: 2013-03-08

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Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703005361.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703005361.xml

The Online GIS contains the following datasets (all datasets presented in GDA94 datum, MGA54 projection)

Vector data:

ms_grid: A simple 1 km grid on the MGA54 coordinate system.

newgeol_p: Polygon shapefile of interpreted outcrop geology.

strline: Structural features such as faults.

strucl_s_zero: S0 (bedding) structural measurements, extracted from GA's STRUCTURES database.

strucl_s_two: S2 structural measurements, extracted from GA's STRUCTURES database.

strucl_s_three: S3 structural measurements, extracted from GA's STRUCTURES database.

rbsr: Rubidium-Strontium age determinations, extracted from GA's geochronology database.

petrog: Petrology of thin-sections, extracted from GA's PETROG database.

ozchem: Geochemistry analyses, extracted from GA's OZCHEM database.

Raster data:

rtp_col: RGB colour TMI (magnetics), data courtesy of PIRSA.

1vd: Greyscale First Vertical Derivative magnetic image, data courtesy of PIRSA.

Authors:Gibson, G.M.

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