Authors / CoAuthors
Goleby, B.R. | Lyons, P. | Huston, D.L. | Vandenberg, L.C. | Bagas, L.
Abstract
The 2005 Tanami Seismic Collaborative Research Project was carried out from May through July 2005 across the Tanami Region of Western Australia and the Northern Territory (Figure 1-1). The survey is a collaborative project between Geoscience Australia, the Geological Survey of Western Australia, the Northern Territory Geological Survey, Newmont Exploration and Tanami Gold NL, and used the facilities of ANSIR (the National Research Facility for Earth Sounding). The seismic results would then be used to test our understanding of the 3D architecture by imaging the regional geology and the key regional structures. Some of these key structures are related to gold mineralisation. The project, through a series of meetings between interested Tanami Region geoscientists, identified a series of traverses (Figure 1-1) that would best define the architecture of the Tanami Region. The proposed traverses were selected based on both scientific and operational criteria. The scientific questions that were considered to be important in understanding the geometry and tectonic history of the Tanami Region are: - What are the geometries and the order of structures such as faults and folds? - Can we identify through-going crustal structures? - What is the relationship of the various stratigraphic packages with the controlling structures? - Are variations in the thickness of formations due to layer-parallel duplication (i.e. thrusting) or the result of growth faults? - What is the relationship of mineralized domains to crustal scale structures? - What is the three-dimensional geometry of granitic bodies? - Can we identify the early Palaeoproterozoic or Archaean basement and its relationship to the rocks included in the Tanami province? - What is the nature of the boundary between the Arunta Inlier and Tanami province, and is it related to the prominent east-west trending gravity ridge? - Can we identify the presence of the mineralized Dead Bullock Formation (DBF) at depth in the WA part of the Tanami province? Thick sequences of the formation are known to be present in the NT part of the province, but there seems to be no outcrop of it on the WA side; why is this so? - Can we identify the possible existence of alteration zones that maybe associated with mineralization in WA. In conjunction with these questions, the proposed traverses would provide depth constraint to the Tanami 3D model that was developed with input by GA, NTGS, and GSWA.
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nonGeographicDataset
eCat Id
64840
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Keywords
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- GA PublicationRecord
- ( Theme )
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- seismic sections
- ( Theme )
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- seismology
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- AU-NTAU-WA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
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2006-01-01T00:00:00
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[-23.0, -18.0, 128.0, 133.0]
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