looking worse every day, page-8

I can only have a little chuckle about the future prospects of this company Cabe.

There are many reasons why people sell and for that matter buy a company. Imo irrespective of the world markets we will find Uranium plodding along its own path. Global Warming or should I say Global Warning.

Ok back to....


Koonenberry Geological Mapping Project
Project status
Geology
Mineralisation
Additional products
Project status

The Koonenberry region was regionally mapped at 1:250 000 scale in the 1960's. The new generation of geological mapping at 1:100 000 scale commenced in 1995 immediately following a high resolution magnetic and radiometric survey carried out using NSW Geological Survey Discovery 2000 program funds.

Mapping on ten 1:100 000 sheets has now been completed. Provisional print on demand maps are available for the Bunda, Grasmere, Wonnaminta, Nuchea, Cobham Lake, Kayrunnera and Mt Arrowsmith sheet areas. Maps of the Milparinka, Olive Downs and Tibooburra sheets are currently being compiled and fieldwork on the Yancannia sheet is being finalised. Mapping has focussed on the hard rock, mineral systems geology.

General geological, geophysical and GIS coverage of the area may be found on the Curnamona CD. A separate Koonenberry CD digital data package contains geographical information, some Landsat imagery, geological and geophysical coverage, detailed interpretation of the basement geology, summary point data sets related to exploration and mineral occurrence and tenement information. This CD also contains public access exploration data.

Geology
The Koonenberry Belt wraps around and defines the eastern margin of the Curnamona Craton. The exposed older rocks of the Koonenberry Belt form a segment of the late Cambrian Delamerian Fold Belt in far-western New South Wales. These rocks are late Proterozoic to late Cambrian sediments and volcanic rocks that were deposited on the eastern margin of continental Australia during, and following, the break-up of the oldest known super continent known as Rodinia.

Present day exposures occur on low rises scattered over a large area between Menindee and Tibooburra. The various continental shelf and slope sediments contain, in different parts, volcanic suites of calc-alkaline, alkaline and tholeiitic character. The late Cambrian Delamerian Orogeny involved tight folding, thrusting, cleavage formation and low grade regional metamorphism at about 500 Ma. Deformation and metamorphism were accompanied by widespread gabbroic and several ultramafic intrusive complexes.

In the north-east small granitic bodies occur in a region affected by a late Ordovician to early Silurian cleavage forming event. Quartzose sediments were deposited on continental shelves and in basins across the area during the Devonian. A major episode of faulting and deformation in this region during the Carboniferous Kanimblan-Alice Springs orogenic cycle produced shear zones and brecciated channel ways in which most mineralisation has been historically found. In the late Palaeozoic numerous diatreme pipes with the potential to host diamonds were intruded in this region.

Mineralisation

Gold occurrences are widely dispersed throughout the area. Gold occurs in quartz veins, ankeritic faults and in zones of altered volcanic rocks. Alluvial gold is also found at the base of the Mesozoic cover sediments which transgressed the Koonenberry Belt from the Eromanga Basin in the north.

The Tibooburra Goldfields in the far north of the Koonenberry Belt contain gold in cleavage-parallel quartz veins in late Cambrian metasediments, mined sporadically between 1881 and 1895 with a reported output of 496 tonnes at 23.5 g/tonne.

Copper is found in veins and fault zones associated with basaltic and andesitic volcanism, rhyolitic intrusions on Wertago and along the Koonenberry Fault. Copper has also been mined at Grasmere and Ponto from quartzose lodes of possible syngenetic origin. Geological mapping and geophysical data have indicate large areas to the north and north-east are amenable to mineral exploration under a shallow, alluvial, colluvial or Mesozoic sedimentary cover.


There is potential for orthomagmatic nickel sulphide mineralisation in the Koonenberry Belt. Evidence for this is shown by Ni-anomalous ultramafic bodies outcropping at Macs Tank, Conns Creek, Mt Arrowsmith and Packsaddle. In addition, tholeiitic gabbroic intrusions in the Early to Middle Cambrian Ponto Group and Teltawongee beds could be analogous to the Black Hill Norite in SA, a Cu-Ni-PGE anomalous layered ultramafic body.


Nice.