(PDF) Skarns in the Porphyry CopperGold Environment
Although usually treated as separate to the adjacent porphyry coppergold (CuAu) deposit, skarns near porphyry deposits are commonly inextricably part of the larger CuAu system(s).
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Although usually treated as separate to the adjacent porphyry coppergold (CuAu) deposit, skarns near porphyry deposits are commonly inextricably part of the larger CuAu system(s).
However, it appears the coveted porphyry coppergold and associated skarnstyles of mineralisation, which have proven to be profitable for previous miners in the region, sit atop of Native Minerals wishlist.
Belmont LIDAR Survey Supports DeepSeated CopperGold Porphyry Model on Come By Chance Property Greenwood Mining Camp, PRESS RELEASE ACCESSWIRE Oct. 5, 2020, 09:05 PM
Jul 14, 2010#0183;#32;Boxxer Gold Corp. (:BXX) is preparing to drill 26 areas of mineralized skarn and 32 geophysical (IP) targets on its owned Boss porphyry coppergold project in
The Ok Tedi coppergold mine in Western Province, Papua New Guinea, is situated in the western part of the Ok Tedi Complex where monzodiorite to quartz monzonite intrusions are as
Porphyry deposits represent an important resource of copper; however, they are also important sources of gold and molybdenum with porphyry deposits being the dominant source of the latter. In general, porphyry deposits are characterized by low grades of ore mineralization, a porphyritic intrusive complex that is surrounded by a vein stockwork
Characteristics of Gold Skarns Gold skarns are defined as skarn deposits in which gold is the primary or dominant economic metal present. The following features should be noted about these deposits: 1. They occur worldwide along destructive plate margins (Figure 1) and tend to have a spatial and temporal association with Cu porphyry provinces. 2.
Oct 01, 2002#0183;#32;At Bingham, gold production from all nonporphyry ores amounts to about 25% of the gold produced from porphyry ores (Krulec, 1997), and at Battle Mountain, where porphyry ores are subordinate to skarns, 90% of total gold production has come
Dec 11, 2020#0183;#32;Large, underexplored coppergold mineralised skarn system mapped over several kilometres associated with highly altered / veined porphyry
Dec 16, 2020#0183;#32;Evidence of nearby porphyry These assays, the extensive nature of the goldcopper skarn mineralisation and intense alteration indicates one or
Dec 17, 2020#0183;#32;Large, underexplored coppergold mineralised skarn system mapped over several kilometres associated with highly altered / veined porphyry
Although the skarn zones were not enhanced, the most significant result from the exploration was the intersection of a chute of massive sulphides; another indication of a potential deepseated copper/gold porphyry deposit.
Oct 06, 2020#0183;#32;The CBC Property is located three kilometres to the southeast of the Phoenix deposits and on a comparative geological trend, hosts skarn. epithermal, and massive sulphide mineralization; typical mineralization associated with deepseated copper/gold porphyry deposits. Skarn mineralization with elevated copper values occurs in many locations, with epithermal zones of alteration and quartz
Anomalies at the Fortitude Gold Skarn, Battle Mountain Mining District, Nevada). At Copper Canyon, goldbearing skarns are present in a widespread 39Ma skarnrelated, porphyry copper system, including the Fortitude gold skarn (approximately 2 million oz Au, Wotruba and others, 1986; Myers, 1994).
On the whole, from the porphyry body to surrounding rocks, there appears molybdenum in the inner part, copper in the outer part and gold in the distal part, constituting a porphyry type skarn
Abstract. About 10 6 kg (gt;30 Moz) of gold have been recovered from skarn deposits. These occurrences can be subdivided into five major skarn types: gold, iron, copper, porphyry copper, and leadzinc. Each skarn type has distinctive characteristics and can be differentiated on the basis of geochemistry, mineralogy, pedogenesis, and tectonic setting.
In recent years, a significant proportion of the mining industry''s interest has been centered on discovery of gold deposits; this includes discovery of additional deposits where gold occurs in skarn, such as at Fortitude, Nevada, and at Red Dome, Australia. Under the classification of Aubearing skarns, we have modeled these and similar goldrich deposits that have a gold grade of at least 1 g
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