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Friday, August 7, 2020 | History

1 edition of Hemlo Gold Desposit Area, Structural Geology, Western Part found in the catalog.

Hemlo Gold Desposit Area, Structural Geology, Western Part

Hemlo Gold Desposit Area, Structural Geology, Western Part

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Published by Ministry of Northern Development & Mines in Sudbury .
Written in English


Edition Notes

11

The Physical Object
Pagination1 map scale 1:5000
Number of Pages5000
ID Numbers
Open LibraryOL22045209M

Hemlo Gold Deposit (see Figures l and 2). The property is situated within the southwestern portion of the Wabikoba Lake area (Claim Map G) of the Thunder Bay Mining Division (see Figure 2), NTS 42 C/12NW, and centres on '40"N Latitude and '50"W Longitude. "Look for gold where gold is said to be" (Don McKinnon- discoverer of Hemlo). Gold deposits encompass a wide variety of geological environments. Depending on the deposit type (i.e. epithermal, mesothermal, porphyry-style, disseminated, BIF-hosted, IOCG, skarns, lode, etc.), they are associated with a wide-range of alteration assemblages.

An exsolution origin for low-temperature sulfides at the Hemlo gold deposit, Ontario, Canada. Economic Geology, 92 (5), Pan, Y. and Fleet, M. (a) Mineral chemistry and geochemistry of vanadian silicates in the Hemlo gold deposit Ontario, Canada. Contributions to Mineralogy and Petrology: GEOLOGISTS have long noted the close spatial association between gold deposits in greenstone belts and structures such as faults, shear zones, and folds, as reflected by many of the contributions in Newhouse and Canadian Institute of Mining and Metallurgy ().Although there is wide acceptance that structures like shear zones, folds, and boudins are important loci of greenstone gold deposits .

Mesothermal and Greenstone Gold Deposits AKA Orogenic Geology Formation. Mesothermal gold deposits form half way up through the rise of the melt from the deep crust to the surface usually at a depth of less than 10 km but greater than 1 km. temperatures at these depths are generally somewhere between degrees and degrees Celsius. Initial gold deposition took place within the Sangruntau-Tamdytau shear zone, which was developed along the stratigraphic contact between the Besopan-3 and Besopan-4 units. During the mineralization process, folding of the Besopan Suite and a left-step adjustment in the Sangruntau-Tamdytau shear zone were caused.


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Hemlo Gold Desposit Area, Structural Geology, Western Part Download PDF EPUB FB2

The Hemlo gold deposit is interpreted as an atypical, mesozonal-orogenic, disseminated-replacement-stockwork deposit, broadly synchronous with D 2 and “middle” stage granitoid plutonism, prior to or synchronous with peak regional metamorphism, and involving magmatic±metamorphic fluids.

Its emplacement is poorly constrained between and Cited by: In the area around the Hemlo gold deposit (Figs. 2, 3), the supracrustal rocks include mafic and felsic volcanic rocks and sedimentary rocks (feldspathic wacke and conglomerate),Author: Shoufa Lin. : Geology of the Porphyry Copper Deposits of the Western Hemisphere (): Hollister, Victor F.: BooksCited by: Book - Geology and Gold Deposits of the Hemlo Area.

Publication Number: N/A Date: Author: Muir Hemlo Gold Deposit Area, South-Central Part. Publication Number: P Scale: Date: Map - Hemlo Gold Deposit Area, Structural Geology, North-Central Part.

Publication Number. Map - Lithology of the Hemlo Gold Deposit Area (North-Central Sheet) Publication Number: OFMB Scale: Date: Author: Muir, T.L. Publisher Name: OGS. Map - Structural Geology of the Hemlo Gold Deposit Area (North-Central Sheet) Publication Number: OFMB Scale: Date: Author: Muir, T.L.

The Hemlo gold deposit is hosted in the shear zone, mainly in the segment that trends east-southeasterly where deformation is stronger.

The main gold mineralization at Hemlo occurred before G2 or early during G2 deformation and before peak metamorphism. The latter took place during late G2 to after G2 by: Hemlo Gold deposit.

The property lies approximately 19 miles east of the town of Marathon, Ontario just before Rous Lake where a bush road heads north-northwest from Highway #17 for l mile to the Black River.

From here, a 4 mile boat ride up the river "brings you" to the most western claim boundary of the property. Property. INTRODUCTION THE HEMLO GOLD DEPOSIT near Marathon, Ontario was discovered inalthough there is a long history of exploration in the vicinity (PATTERSON, ). Current reserves of 85 million tons at oz/ton Au (Northern Miner, Jan.

17, ) make this one of the largest deposits of gold in North by: Structural analysis of the central part of the Hemlo gold deposit in the Hemlo-Heron Bay greenstone belt has revealed four generations of deformation structures (D1–D4).

The second (D2) and fourth (D4) deformations significantly influenced the orebody and controlled the localization of gold mineralization.

Geology. Province: Superior Subprovince: Wawa Belt: Schreiber-hemlo Geological Age: Neoarchean Geochronological Age: - ma Metamorphism Type: shear Metamorphism Grade: amphibolite Geology Comments. 08/30/ (Q Unknown) - The main ore zone occurs within the Moose Lake Formation, a narrow band situated between the hanging wall Cedar.

The Geita Hill gold deposit is located in the Archean Geita Greenstone Belt and is one of the largest gold deposits in East Africa. The Geita Greenstone Belt experienced a complex deformation and intrusive history that is well illustrated and preserved in and around the Geita Hill gold deposit.

Deformation involved early stages of ductile shearing and folding (D1. The Telfer gold-copper deposit is located within the Paterson Tectonic Province, in the Great Sandy desert, km ESE of Port Hedland, and km north of Kalgoorlie, Western Australia (#Location: 21° 43' 18" S, ° 12' 52" E).

The first recorded indication of the Telfer deposit was the discovery in of extensive small, low relief quartz-limonite gossans and limonitic. Geology of Gold Deposits at the Marigold Mine, Battle Mountain District, Nevada Diversity in Carlin-Style Gold Deposits Evidence of Jurassic tectonism from the Barneys Canyon gold deposit, Oquirrh Mountains, UtahCited by: Descriptions of major ore deposits world wide.

The Stawell Goldfield and the Magdala, Golden Gift, East Magdala, and Wonga gold deposit are located some km WNW of Melbourne in the state of Victoria, Australia (#Location: 37° 3' 31"S, ° 48' 3"E). The Stawell Goldfield is located within a ~20 km wide fault bounded corridor marking the overlap of the Cambrian Delamerian.

Some of the most vanadium-rich silicate minerals known are present in green mica schist from the Hemlo gold deposit, Ontario, Canada. Vanadium-rich silicate minerals include green mica (up to wt.

% V2O3), phlogopite ( wt. % V2O3), pumpellyite ( wt. % V2O3), garnet ( wt. % V2O3), epidote-group minerals ( wt. % V2O3), antimonian Cited by: Structural Geology Haakon Fossen. out of 5 stars Kindle Edition.

$ Next. Editorial Reviews Review "This is ore deposit geology the way most professional economic geologists think, using deposit descriptions as a basis for understanding genetic processes. It is clearly structured, simply illustrated and lucidly explained.

Cited by: beginning of the 20th century, particularly concentrating on Archaean gold deposits which are hosted in the Manica Greenstone Belt. Few of these studies have been formally published.

Phaup (), gives an outline of the geology of the Umtali (Zimbabwe) area which describes extensions into Zimbabwe of the Manica (Mozambique) gold belt. GEOLOGY, ORE DEPOSITS, AND MINERAL POTENTIAL OF THE SEWARD PENINSULA, ALASKA By C. (Pete) Sainsbury l/ INTRODUCTION The writer first began geologic studies on the Seward Peninsula in ; between and he was continuously engaged in studies of the geology and mineral resources of the region for the U.S.

GeologicalFile Size: 4MB. The Metallogeny of Lode Gold Deposits: A Syngenetic Perspective is a synthesis of lode gold vein forming processes, addressing the commonality in similar worldwide deposits.

The book’s empirical model incorporates widely known and accepted principles of ore deposition and shows how it applies in the volcanic-sedimentary greenstone belt environment.

A pyrite-rich feldspathic Au ore from the large, late Archean Hemlo gold deposit, a modern-day gold find containing more than tonnes of the precious metal.

This ore is from the Williams mine, the westernmost of three mines developed on the major orebody. Loose in 5. Lake Sheet (Milne ()) and in the southeastern part of O'Neil Township.

The property lies approximately 25 km west of the presently known Hemlo gold deposits. Personnel employed on the program included Nadia M. Caira,Geology, lan Coster,Geology.Current Getchell Gold Corporation land holdings in the Getchell Trend cover 50 mi 2 at the northern end of the Os-good Mountains and the Dry Hills.

With the discovery of the high-grade underground orebodies from the Getchell main (sulfide) open pit and the discovery and initial shaft development of the underground Turquoise Ridge Deposit, the Getchell Trend .Government of Western Australia Government of Western Australia Department of Mines and PetroleumDepartment of Mines and Petroleum Government of Western Australia Department of Mines and Petroleum Orogenic Au in high met-grade terranes The Continuum Model: Orogenic gold deposits form across a vertical.