| This NEWS is Superb for NOT and McFaulds… First, I must say that the mood on the Forum is dark, and the Bashers soft or otherwise having been working their trade with success, with absolutely NO BASIS IN FACT….
I was exceedingly pleased with this News Release, both for NOT and McFaulds, for a number of reasons, including the Geological description and Sulfides/Metals content…
Up to now, NOT, McFaulds have been thought of as an MMS deposit with some PGEs…This News release this morning brings the potential to change that… NOT’s New discoveries are very suggestive of one of the world’s MMS/PGEs richest deposit ever…NORLISK…Not only rich in NI-Cu, but very rich in PGEs…Below I have included a very detailed and precise article from Prof. T. Naldrett, although I wouldn’t expect everyone to fully understand it, the very important point to make is the description of “chalcophile element depletion” …
Essentially, in plain language, through various Geologic processes this “chalcophile element” is depleted from the various magmas, and deposited somewhere further away to where it formed PGEs deposits….This Chalcophile element consists of COPPER and PGEs...This association with Copper and PGEs is known world wide, in some of the Major Ni Cu PGEs deposits of the world…So as the News release clearly indicated visible Copper sulfides, in association with layers of Chromite is compelling evidence for MAJOR PGEs mineralization…it is therefore NOT a negative as some soft bashers suggested, it is an incredible positive….
I have copied below the most important points made with respect to this I would say almost certain PGEs mineralization.. I might also add that the locations wherein this copper was found, underlying the Granodiorite and overlying volcanics contact,. Is almost a text-book description wherein PGEs accumulations occur…at the ‘contact”…Another way PGEs occur is within and around the Chromite itself…As I said I am almost certain that the pending assays will show substantial amounts of PGEs..
Further these intersection are not small at all…AT2 One is 65ft by 250 Ft..Chromite layers 150 Ft thick with a depth of 600Ft and AT3 240 Ft of sulfides in which it is noted that it contains Chalcopyrite …This of course is in addition to the numerous areas drilled containing Ni Cu mineralization….NOT continues to stake those areas indicated by Geophysics …One other point,as I mentioned in my SPQ post, PGEs deposits occur with many sulfides or with NO sulfides…so always keep that in mind, and wait patiently for the assays results before jumping to conclusions…Although in most cases in this NR, sulfides are present...
This is a new Chapter for NOT and McFaulds, and I am more encouraged than ever about our Prospects….Again I am exceedingly pleased and very exited by these results
AT2 and AT3 drilling highlights. And Charts..
- Further drilling at Eagle Two (Anomaly AT2) continues to trace a Shear Hosted Sulphide ("SHS") zone containing bands of massive sulphide mineralization with visible copper-nickel minerals from the Precambrian rock surface (starting at 10 meters below surface) to 190 meters below surface where the approximately up to 21 meters thick, 75 meters long oval-shaped mineralized zone is within 30 meters of the favourable underlying granodiorite intrusive contact. - Massive Chromite beds up to 48.4 meters in core thickness at AT2 have been encountered in the near vertical dipping, wide peridodite sill occupying the non-conformity between the underlying granodiorite intrusive to the north and overlying Precambrian volcanic stratigraphy to the south. - At anomaly AT3, a steep north-dipping stringer sulphide zone with some visible copper mineralization are being discovered and now intersected in 4 drill holes over substantial core widths. - Several new excellent anomalies resulting from the continuing airborne geophysical program are being located around the Ring of Fire on Noront's claims and additional ground is being staked for Noront covering other areas around the Ring of Fire. AT2 and Table of Drill Holes A HISTORY OF OUR UNDERSTANDING OF MAGMATIC Ni–Cu PGEs SULFIDE DEPOSITS Prof. Anthony J. Naldrett Department of Geology, University of Toronto, Toronto, Ontario M5S 3B1, Canada Progress in the understanding of the origins of magmatic Ni–Cu sulfide deposits underwent a major acceleration with the advent of the 1960s. Prior to this decade, thinking had largely been influenced by observations on the Sudbury area, in Ontario, which was by far the dominant Ni producer. Discussion focused on the nature of the Sudbury Igneous Complex, and whether the ores were gravitational segregates from the complex, or whether they had been introduced by hot aqueous fluids. During the 1960s, the concept that Sudbury is an astrobleme was first proposed, the discovery of the Talnakh ore junction (Russia) elevated Noril’sk from minor to major status, and a new class of deposit related to komatiitic volcanism was recognized at Kambalda (Australia). The 1960s were also a turning point with respect to research funding, which led to an explosion both in the amount of research conducted, and in its global nature. Thereafter, progress was stimulated by the new thinking about Sudbury, and the very different environments of ore deposition observed at Noril’sk and Kambalda. It has turned out that a number of broad themes have evolved under which much of the progress over the past 40 years can be grouped. (i) Magmas rising directly from the mantle are unlikely to reach crustal depths saturated in sulfide, and contamination with crustal rocks is required for sulfide immiscibility to occur early in the crystallization process. (ii) With appropriate experimentally derived partition-coefficients, the relationship between the compositions of magma and sulfide can be modeled, and this modeling provides important constraints on geologically based hypotheses. (iii) The development of sulfide immiscibility commonly leaves a mark on the composition of the source magma and the rocks crystallizing from it that can act as a signpost for exploration. (iv) Sudbury is unique, probably because of the high degree of superheat that it experienced; sulfides have settled and accumulated over much of the base of the complex; in most other deposits, it has been the flow of magma carrying immiscible sulfides that has caused the sulfides to concentrate in economically exploitable proportions. The physical environment represented by a given part of an igneous body is therefore important when considering its potential. (v) Once concentrated, sulfide magmas cool and fractionate, and the fractionated residual liquid may migrate away from the initial site of crystallization to form rich concentrations of Cu, Pt, Pd and Au elsewhere. Keywords: magmatic sulfides, history, nickel, copper, sulfide concentration, chalcophile-element depletion, sulfide fractionation, magma contamination. |