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Re: gump90 post# 96701

Saturday, 09/18/2010 2:15:03 AM

Saturday, September 18, 2010 2:15:03 AM

Post# of 233161
Gump, you got a minute? Listen, all of this pretending has got to stop...This isn't the first time I have seen you make completely false statements about KATX's properties...this article was written by a couple of guys who actually know what they are talking about, not some two bit impostor who pretends all day on a stock message board to be something he's not(not you LOL!!!)...these guys don't write these articles based on emotions and personal vendettas, they are based on facts, geology. And guess what...it completely contradicts what you are saying about Rusty Ridge, maybe you should read it...

You said:

"There are no volcanics at Olympic Dam.. brecciated or otherwise." Not true...

Also:

"I hate to pop a bubble here but the geology of the Rusty Ridge property and that where the big Olympic Dam structure occurs in Australia is not even close" Another totally false statement...

And:

"O D is in the basement GRANITE of Australia. The Australian Shield. Such a placement at Rusty just is not there. No granite." Wrong again...see the bedrock geology map below of the Bonavista Peninsula where Rusty Ridge is located...see the red stuff? What is that? GRANITE!!!!!


Nothing you have said about Rusty Ridge is actually true...I am constantly seeing these major discrepancies between the facts and your posts...why is that? People here actually think that you know what you are talking about...I see their posts here almost every day, thanking you and making statements about how knowledgeable you are. You at least owe it to them to actually take the time and learn the facts before you make a dozens of posts that are completely false...like I said, all of this pretending has got to stop!

Article:
James P. Johnson and Malcolm T. McCulloch

Research School of Earth Sciences, Australian National University, GPO BOX 4, Canberra, ACT 2605, Australia

Received 3 April 1994; accepted 3 October 1994. ; Available online 22 November 1999.

Abstract
The Olympic Dam Cu---U---Au---Ag deposit, South Australia, is hosted by the Olympic Dam Breccia Complex, a high-level, hematite-rich hydrothermal breccia system. The deposit is characterised by extreme enrichments of REE which are a product of the ore-forming process, therefore making the Sm---Nd isotopic system an ideal tool for clarifying the complex relationships between the different ore and breccia types. Pyrite-, chalcopyrite- and bornite-chalcocite-rich hematitic ores share an initial ENd signature of -2.5 which suggests that these ore types are cogenetic. These ores, together with sulphide-poor hematitic breccias, yield a 14-point Sm-Nd isochron age of 1572 ± 99 Ma. The host Roxby Downs Granite has an initial eNd of -5, and therefore cannot alone have been the source of the mineralising fluids for the hematitic ores. In contrast to hematitic rocks, volumetrically minor magnetite-rich assemblages have the same initial Nd signature as the host granite, suggesting that they are cogenetic. Assuming that both hematite and magnetite were precipitated from solution, their contrasting isotopic signatures require that ore deposition involved two distinct fluids. The isotopic data do not allow the distinction between a model involving concurrent activity of such fluids in a mixing regime, and a model involving temporally separate overprinting of magnetite by hematite +Cu-sulphides.

The ore signature of eNd ˜ -2.5 cannot have been derived solely from pre-existing crustal rocks of the Gawler Craton; it must have involved a contribution from a mantle-derived source rock or magma. The most likely source of this Nd component are the mantle-derived rocks produced during the Gawler Range Volcanics event, e.g. altered alkaline mafic/ultramafic dykes within the deposit, which have initial isotopic signatures as high as eNd + 4. Assuming end-member compositions equivalent to these dykes and the Roxby Downs Granite, the ore signature implies that 30% of the Nd in the ores was derived from the mafic/ultramafic source. If Nd was leached from source rocks rather than derived from magmatic volatiles, the inferred rock fractions contributing REE to the deposit are 13% mafic/ultramafic rocks and 87% Roxby Downs Granite or its volcanic equivalent. Massbalance calculations indicate that 13% rock fraction of mafic/ultramafics can account for 50% of the Cu contained in the deposit. The involvement of mafic/ultramafic rocks is therefore inferred to have been crucial to the genesis of the Cu-enriched ores at Olympic Dam.

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V5Y-3XY2PGG-1R&_user=10&_coverDate=04%2F05%2F1995&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1465175175&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=c884f1fd9a41c377ceba7f024f234f80&searchtype=a



imposter - a person who makes deceitful pretenses or one who engages in deception under an assumed name or identity.

also see faker, pseud, pseudo, role player, sham, shammer, pretender, fraud, fake, beguiler, cheater, deceiver, trickster, slicker, cheat - someone who leads you to believe something that is not true...