Original paper

The metal-rich 4A-4B west-northwesterly crustal corridor through the Curnamona Craton, South Australia

O'Driscoll, E. S. T.; Boucher, R. K.

Global Tectonics and Metallogeny Volume 7 Number 3-4 (2001), p. 203 - 207

24 references

published: Jun 28, 2001

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ArtNo. ESP136000703004, Price: 19.00 €

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Abstract

It has been well documented that the Australian continent is criss-crossed by intersecting crustal strain tracks or pattern breaks in the basement, which appear as trans-regional and trans-continental crustal lineaments associated characteristically with giant ore deposits. Most of these linear features may be regarded as having been genetically derived from earlier fundamental E-W crustal discontinuities of the type recognised as transregional latitudinal lineaments by Heyl (1972) and Kutina (1969, 1974, 1980). Conspicuous among such derived lineaments in the Australian scene is the system of conjugate quadrantal WNW and ENE lineaments, in which the WNW lineaments appear to take precedence (O'Driscoll & Campbell, 1997). Prominent transcontinental WNW geophysical trends in Australia, such as the 4A-4B corridor (O'Driscoll 1986) discussed herein, are reflected in the broad positive 6nT satellite magnetic anomaly (black-colored area) crossing through southern and western Australia.

Keywords

metal-richcrustal