The New England Fold Belt is
an exciting emerging mineral province, which in the past,
has been a significant production area for gold, tin and base
metals. Although previously relatively unexplored, the area
is now receiving increased attention with the application
of new geological theory and exploration techniques and with
the application of new mining and processing technology. In
recent years, the area has been host to a number of new gold
and polymetallic mineral “discoveries and developments”
including:
- Hillgrove (antinomy and gold);
- Kingsgate and Stanthorpe (molybdenum);
- Mt Carrington (gold, silver and zinc);
- Taronga (tin); and
- Seven Hills and Timbarra (gold).
The Company has project areas in a relatively unexplored,
but in historically rich mineralised mining areas and will
be targeting large, near surface gold and polymetallic ore
bodies, utilising modern day exploration techniques.
CATHEDRAL ROCKS
- Gold, base metals
Location and access
Cathedral Rocks is a base metals and gold target 50 kilometres
east of Armidale in northern New South Wales. Access is via
a paved road from Armidale and a network of farm tracks across
the tenement.
Historical activity
Cathedral Rocks is centred on the historic reef and alluvial
tin fields of Yooroona, Lauder and School Gully. The tin fields
form a cluster around a remnant of baked older rock on top
of a granitic intrusion, the Round Mountain Adamellite.
Approximately 3,800 kilograms of cassiterite were produced
from these limited areas when they were worked during the
1900's and intermittently thereafter.
Exploration between 1911 and 1955 encountered strong gold
and base-metal anomalies.
During the 1970's, CRA defined strong polymetallic anomalies
in soils, trenches, and follow-up drilling on geophysical
targets. Holes intercepted up to four zones of mineralisation
up to 30 metres wide to 120 metres down hole, with strong
tin, lead, zinc, copper and silver anomalies. Other holes
intercepted mineralisation in altered granites or cut narrow
or low-grade zones, interpreted as being peripheral to mineralisation.
Mineral widths appear to increase at depth, forming a series
of stacked lens.
Crucially, CRA did not analyse for gold or molybdenum, now
considered the most prospective targets. CRA regarded the
deposit as being analogous to Anduramba in southeast Queensland.
Prospectivity and exploration target
Cathedral Rocks is centred on the historic reef and
alluvial tin fields of Yaroona, Lauder and School Gully which
produced tin in the early 1900's. Whilst a number of gold
and base metal anomalies were identified in exploration during
the early 1950's, it wasn't until the 1970's that CRA Exploration
drilling intercepted a number of significant base metal mineralised
zones. Crucially, CRA Exploration did not analyse for gold
and molybdenum, now considered the most prospective targets
based on a new interpretation of the possibility of intrusion
related gold systems (IRGS) within the regional geology.
Mapping and sampling programs, targeting regions known for
gold, molybdenum, and tin mineralisation are well advanced.
Two anomalies have been identified from historical records
and are the focus of the current field campaign. Mapping has
identified lead, zinc and tin mineralisation in an alteration
related to dykes cutting the boundary of granites and their
host rocks. Rock chip samples, assayed for gold and based
metals, will be reported in August 2010. The mapping and sampling
results will define initial targets for detailed in-fill sampling.
A molybdenum anomaly has been identified from a review of
historical exploration data, which is considered significant
due to the strong association of gold with molybdenum in IRGS
systems. This prospect, located in the east of the Cathedral
Rocks tenement, has been reported to have a number of soil
samples with highly anomalous molybdenum values, but was historically
never analysed for gold. It is considered likely that the
area is prospective for gold, molybdenum, silver and tin.
Mapping and sampling of this prospect is scheduled to begin
early in July 2010.
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