detachment fault gold deposits

The claims are 100% owned by IMC International Mining Corp.  Gold mineralization is located in: (1) a massive, tabular ore body above the detachment fault; and (2) open spacefilling ores along predominantly east–west oriented listric faults. 5). Posted by Photomicrograph of oxidized euhedral pyrite that overprints cataclastic leucogranite from the “Gatuna Detachment Fault” in the Picacho Mine, California. gold deposit is situated 5 km southeast of Krumovgrad town, Eastern Rhodopes. Disseminated free gold provinces of Europe hosting a large number of occurs in quartz matrix of silicified marbles along ore deposits, partly controlled by detachment the thrust fault, and as secondary gold enrichment 162 Bul. Mockingbird: Gold and silver deposit related to detachment fault. This N-NW fabric is the same structural control to gold mineralization in productive Carlin-type gold deposits along the Cortez gold belt, including in the Pipeline - Cortez Hills - Goldrush district (+50 million ounces). The Mineral Ridge gold deposits are located on the northeast flank of the Silver Peak Mountain Range. detachment faults near Wapolu at the north-western part of Fergusson Island. The northwest Jiaodong metallogenic belt mainly develops large-scale fracture-altered style gold deposits, which are controlled by NE-NNE trending gently inclined detachment faults, represented by the Sanshandao fault, the Jiaojia fault and the Zhaoping fault. The claims are 100% owned by IMC International Mining Corp. Detachment-fault deposits contain fractures and thick, irregu- … Gold is essentially limited to this late-stage pyrite or, uncommonly, has been remobilized during supergene alteration. Anaconda / Chevron work indicated potential. Ma Linglong granite in the footwall of the Linglong detachment fault. Argon thermochronology suggests that the granite had cooled to 400. The deposit provides excellent exposures of the hangingwall, footwall, and detachment itself, marked by mylonitic The ores are zones of intensive silicification and brecciation synchronous with detachment faulting. Gold deposits of Turkey, as well as other mineral deposits, are mainly associated with Late Mesozoic and Tertiary rocks (Fig. Graph showing tonnages of laterite-saprolite Au deposits 50 34. The property has a regional setting typical of detachment fault gold deposits and has geological, mining and metallurgical similarities to the Mesquite Mine in California. The area of our claims has numerous high-grade outcroppings with spectacular, highly mineralized copper oxide mineralization, sulphides, and gold mineralization. Epithermal deposits can be distinguished from detachment-fault-related deposits by their characteristic ore mineralogy, alteration minerals and patterns, geochemical signatures, and fluid-inclusion compositions, as described in the deposit model for hot spring Au-Ag (Berger, 1986b). Shk. The Mockingbird Project involves an important new type of Arizona gold deposit, called a "detachment fault" deposit. Nevada. Significance of crustal extension and magmatism to gold deposits beneath Jiaodong Peninsula, eastern North China Craton: Seismic evidence from ... the identified detachment faults, small vertical velocity gradients in the ... and Bouguer gravity anomalies, indicating that the WYFZ may be a steep transcrustal fault. Carlin-type, detachment-fault-related gold, Fe-oxide Cu–Au (IOCG) and gold in carbonate replacement and manganese deposits are some of the potential deposit types (Fig. The best example of an Arizona detachment gold deposit is probably the “Copperstone” Gold deposit, which like “Ester Basin” is in the highly extended Western Arizona terrane, as well as in the “Walker Lane” gold trend. The CM3 claim […] The property has a regional setting typical of detachment fault gold deposits and has geological, mining and metallurgical similarities to the … A shear zone is a zone of strong deformation (with a high strain rate) surrounded by rocks with a lower state of finite strain.It is characterised by a length to width ratio of more than 5:1. These unusual gold deposits are mostly overlooked, and they appear to be abundant! Two seismic profiles indicate the detachment fault dips 17°–20° west, has a minimum of 10.1 km of slip, and accumulates a sedimentary wedge more than 2.5 km thick in the west-central part of this basin domain. McCracken Gold: Gold with silver and copper in breccia zone adjacent to one of Arizona’s historic silver producers. The ores are zones of intensive silicification and brecciation synchronous with detachment faulting. Nugget Hill Mining Claim (NH) The NH claim consist of one (1) unpatented lode claim covering 20.66 acres on federal land managed by the U.S. Bureau of Land Management. Detachment fault deposits were first recognized as a separate form of gold deposit in the 1980’s. Location map of major detachment faults and detachment-fault-related mineral deposits in Arizona, southeastern California, and … The south domain is a supradetachment basin controlled by the Cañada David detachment fault. A geochemical model for gold mineralization in the detachment fault environment, in Beatty, B., and Wilkinson, P.A.K., eds., Frontiers in geology and ore deposits of Arizona and the Southwest Copper-gold deposits associated with detachment faults typically lie along or within a few tens of meters of the faults; a few, however, are hundreds of meters above the faults. and Welty, 1986). 1.5. The Rawhide and Buckskin Mountains are a well-known detachment fault district hosting polymetallic shear zone and replacement deposits. Relatively little is known about the details of the formation of the gold deposits or details of the controls on mineralisation at Wapolu. Many of the deposits are hosted by the 163-155. The […] The NNE-trending Linglong Metamorphic Core Complex hosts the majority of the gold deposits in the Jiaodong Peninsula of eastern China. Graph showing gold grades of laterite-saprolite Au deposits 51 35. One of these districts includes the Copperstone mine, which has yielded several hundred thousand ounces of gold (Spencer and others, 1988). A rational geological classification of the commonly recognized lode gold deposits is feasible if it is based on the geological settings of the deposits, host rocks, nature of mineralization and geoche m-ical signature. Mineral deposits related to detachment faults formed within this tectonic setting and were the result of hydrothermal ascent of basin brines along detachment faults (Wilkins and others, 1986). The NH claim is in the Santa Maria Mining District in Mohave County, Arizona which is known for its copper, manganese, gold, and silver deposits. Properties. Location/Access: (36o 02.757’N, 116o 45.636’W) 10.2 miles north of Ashford Mill and 16.5 miles south of Badwater.Although this site is located within yards of the main highway, there are no signs, parking areas or other hints of its location. The property has a regional setting typical of detachment fault gold deposits and has geological, mining and metallurgical similarities to the Mesquite Mine in California. According to the published data it is controlled by the regional Tokachka detachment fault, which is a part of complex mylonitic shear zone, detaching the core of Kessebir gneiss dome from its mantle. The fault-localized feeders, which are inferred originally to have underlain the high sulfidation deposits, were detached from them by the low-angle faults.All ore exploited from the high sulfidation deposits underwent supergene sulfide oxidation during weathering, which commenced after detachment faulting had ceased and was ongoing at 10 Ma. Most vein deposits occur in fault or fissure openings or in shear zones within country rock a vein deposit is sometimes referred to as a metalliferous lode deposit a great many valuable ore minerals, such as native gold or silver or metal sulphides, are deposited along with gangue minerals, mainly quartz andor calcite, in a vein structure North Rawhide: Upper plate gold, silver and copper deposit. Shear zones form a continuum of geological structures, ranging from brittle shear zones (or faults) via brittle–ductile shear zones (or semibrittle shear zones), ductile–brittle to ductile shear zones. Gold mineralization is located in: (1) a massive, tabular ore body above the detachment fault; and (2) open spacefilling ores along predominantly east–west oriented listric faults. The two principal deposits at Wapolu consist wholly of oxide ore (Dagwalala), or predominantly of oxide ore with subordinate underlying primary ore (Didigayagaya). Tokachka fault dips gently (10- Climax Mine Claim (CM 3) The CM3 claim consist of one (1) unpatented lode claim covering 20.66 acres on federal land managed by the U.S. Bureau of Land Management. Former Phelps Dodge project. The N200 t Au Xiadian gold deposit, which is located 15 km to the southwest of the Dayingezhuang deposit (Fig. Dagwalala is distinctive, as the host rock is interpreted to be a talus breccia thought to have formed through slippage on the Detachment Fault Zone. Silicon is located in the Bare Mountain district where gold was discovered in 1905. The CM1 claim is in the Plomosa District in La Paz County, Arizona which is known for barite, copper, silver, gold, and turquoise. The gold is reportedly very fine- … 2a), is situated in the central part of the Linglong detachment fault that defines the eastern edge of the Linglong MCC. These unusual gold deposits are mostly overlooked, and they appear to be abundant! The property has a regional setting typical of detachment fault gold deposits and has geological, mining and metallurgical similarities to the Mesquite Mine in California. One of several gold-silver bearing detachment faults in Arizona. Badwater Region Detachment Fault BW1. Gjeol. Precious metal deposits in the Southwest Nevada Volcanic Field (SWNVF) have combined production and reserves of greater than 60 t of Au and 150 t of silver (Castor and Weiss, 1992). 33. Figure 1. The dominant structure of the range is the Plomosa detachment fault, a low-angle normal fault that separates a single tilted footwall block from a highly extended hanging wall with diverse stratigraphy and complex structure. Metallogenetic correlations. °C by 143. The 377-page book describes gold deposits, ... Then there are the detachment fault gold deposits that extend across Arizona from the northwest to the northeast. ±. One of several gold-silver bearing detachment faults in Arizona. The property has a regional setting typical of detachment fault gold deposits and has geological, mining and metallurgical similarities to the Mesquite Mine in California. Then there are the detachment fault gold deposits that extend across Arizona from the northwest to the northeast. 6). ... Silicified Ov black shale from megabreccia below detachment fault 1.495 ppm). VEIN DEPOSITS Earth Science. Black shale from megabreccia below detachment fault 1.495 ppm ) Jiaodong Peninsula eastern. Are zones of intensive silicification and brecciation synchronous with detachment faulting southwest of the Dayingezhuang deposit (.! As other mineral deposits, are mainly associated with Late Mesozoic and Tertiary rocks Fig. The “ Gatuna detachment fault ” in the Jiaodong Peninsula of eastern China was discovered in 1905 detachment faults Wapolu! 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Ma Linglong granite in the central part of Fergusson Island Cañada David detachment ''! In 1905 gold mineralization this late-stage pyrite or, uncommonly, has been remobilized supergene! Outcroppings with spectacular, highly mineralized copper oxide mineralization, sulphides, and gold mineralization limited to this late-stage or. Were first recognized as a separate form of gold deposit is situated in the Jiaodong of. Grades of laterite-saprolite Au deposits 51 35 the Mockingbird Project involves an important new type Arizona. 1.495 ppm ) of several gold-silver bearing detachment faults in Arizona the deposits are hosted by the Cañada David fault...

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