CRC LEME
Open File Report 77
ABSTRACT
Explanatory notes for the Broken Hill and Curnamona province
1:500 000 regolith landform maps (includes two maps)
Gibson, D.L.
These notes are designed to accompany the Broken Hill and Curnamona
Province 1:500 000 Regolith Landforms Maps first published as a
hardcopy form by CRC LEME in 1995 and 1996, and subsequently revised
(new polygon symbols and reference) and published in digital and
hardcopy form in 1999. The Broken Hill region is well known for
its mineral wealth, but geochernical exploration is hampered by
poor bedrock outcrop in low relief, regolith dominated erosional
terrains which surround the higher relief areas around Broken Hill
and in the Flinders Ranges, and much of the region is occupied by
thin basin sediments overlying prospective bedrock. The map is designed
to show broad regolith-landform units, giving a valuable regional
overview of the main regolith types and their associated landforms.
This is of use to mineral explorers in the region wishing to place
their tenements within the broad regional regolith-landform context,
and also giving a general outline of the major areas of bedrock
or regolith dominated terrain. It also highlights areas where further
regolith investigations might be carried out.
These notes include ideas on the origin of features of the regolith
and landscape in the area, an expanded description of the regolith
landform units shown on the maps and a bibliography of relevant
published material. Appendices include a table of new and old map
symbols, and synopses of field observations made by the author in
areas with little published information on regolith to the east
and north of Broken Hill.
Last updated: Thursday, January 06, 2000 01:49 PM
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