Generalized lithotectonic units, Hemlo gold deposit area (revised).

Generalized lithotectonic units, Hemlo gold deposit area (revised). Download PDF EPUB FB2

Ministry of Energy, Northern Development and Mines. Publication: MREV Publication Details: Title: Generalized Lithotectonic Units, Hemlo Gold Deposit Area Generalized lithotectonic units Muir, T.L.

Series: Series Map Scale: 1: 20 Type: Colour Map Publication Year: Publication Geographic Area. Generalized lithotectonic units for the Hemlo gold deposit (HGD) area with outlines for pervasive alteration and surface ore zones (modified after Muir, ).Cited by: Map - Generalized Lithotectonic Units, Hemlo Gold Deposit Area.

Publication Number: MREV Scale: Date: Author: Muir, T.L. Publisher Name: Ontario Geological Survey. Map - Geological Series, Hemlo Area (Northern Half), District of Thunder Bay.

Publication Number: P Scale: Date: three gold mines in the Hemlo area, Ontario, are presented. In particular, the lithostratigraphy of the area is established, the nature of the lithologic units spatially closely associated with the ore and the protolith of the ore are determined, and the deformation history and the three-dimensional geometry of the area are by: The vein-forming fluids for gold deposits in metamorphic environments are uniquely CO 2 and 18O rich, with low to moderate salinities.

Phanerozoic and Paleoproterozic ores show a mode of formation temperatures at ° to °C, whereas Late Archean deposits cluster at about °to °C. Muir, T.L. Generalized Lithotectonic Units, Hemlo Gold Deposit Area; Ontario Geological Survey, Mapscale Use and Reproduction of Content: The Content may be used and reproduced only in accordance with applicable intellectual property laws.

Non-commercial use of unsubstantial Generalized lithotectonic units of the Content is. N umerous schemes have been proposed for the classification of gold deposits, based on a variety of Hemlo gold deposit area book or criteria. The scheme of Boyle () was founded in Generalized lithotectonic units of the orebody, mineral paragenesis, host rock, and age.

Hodgson and MacGeehan () used the precept of syngenetic versus epigenetic, among other characteristics. According to Bache (), gold deposits can be.

The Lapa gold deposit contains reserves of Mt at g/t Au and is one of the few deposits located directly within the Cadillac–Larder Lake Fault Zone (CLLFZ), Generalized lithotectonic units first-order crustal-scale Author: Andrew Tomkins. Hemlo Gold Deposit Area, Structural Geology, Generalized lithotectonic units Part Author: Muir T.L.

Subject: Hemlo Gold Deposit Area, Generalized lithotectonic units Geology, Eastern Part Keywords: Ontario Mining Publications,Ontario Geological Survey,OGS,Ontario Geology,Ministry of Northern Development and Mines,MNDM,Ontario Geosciences,Ontario Publication Sales Office Created Date.

Main groups of metallic mineral deposits classified according to commodity and significant mineral districts in Sweden. The relationship of these districts to the major lithotectonic units, discussed in Hemlo gold deposit area book text, is shown using the background geological information (see Fig.

for the legend to the base geological map). Character and location Cited by: Pubs Warehouse Home > Browse > Report > USGS Numbered Series > IMAP. Browse the USGS Publication Warehouse Publications in the Series IMAP. Coastal-change and glaciological map of the Amery Ice Shelf area, Antarctica: –,IMAP Q.

exhibited strong secondary enrichment of gold Generalized lithotectonic units has historically comprised a significant resource in the Telfer deposit (Dimo, ). During the middle to late s a shift to high-volume low-grade mining was facilitated by the ongoing success of dump leach extraction of gold from rocks previously too low-grade to be milled.

ELSEVIER Ore Geology Reviews 9 () ORE GEOLOGY REVIEWS The late Archean Hemlo gold deposit, Ontario, Canada: a review and synthesis Yuanming Pan a, Michael E. Fleet b "Department of Geological Sciences, University of Saskatchewan, Saskatoon, Sask.

S7N 5E2, Canada Department of Earth Sciences, University of Western Ontario, London, Ont. N6A 5B7, Canada Cited by: The Loulo Gold Field, which includes the Gara, Yalea and Gounkoto deposits, is located in westen Mali.

Structural evolution of the Hemlo greenstone belt in the Hemlo gold deposit area book of the world-class Hemlo gold deposit Article in Canadian Journal of Earth Sciences 40(3) February with 34 Reads. The geology and mineralisation at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania I.

Vos & F. Bierlein & J. Standing & G. Davidson Received: 23 October /Accepted: 12 May # Springer-Verlag Abstract The Golden Pride gold deposit (∼3 Moz) is located in the central part of the Nzega Greenstone Belt at. The Continuum Model: Orogenic gold deposits form across a vertical crustal profile from km at the peak of metamorphism and temperatures above °C to below °C HOWEVER Any hydrothermal fluid added to a rock above °C would induce partial melting or.

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 x-cut, E level. Samplecollected 14 March Atlas of Alteration Assemblages, Types and Zoning in Orogenic Lode-Gold Deposits in a Variety of Host Rock and Metamorphic Settings Paperback – January 1, See all formats and editions Hide other formats and editions.

Price New from Used from Paperback, January 1, Manufacturer: The University of Western Australia. Three major gold deposits, Matandani, Kukuluma, and Area 3, host several million ouncez (Moz) of gold, along a ~5 km long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania.

The deposits are hosted in Archaean volcanoclastic sediment and intrusive diorite. The geological evolution of the deposits involved three separate stages: (1) an early stage of syn-sedimentary extensional Cited by: 3.

Mineral Deposit Models. For descriptions of metallogenic belts, lode mineral deposits are classified into various models or types.

Detailed descriptions are provided in the companion paper by Obolenskiy and others (). The following three main principles are employed for synthesis of mineral deposit. A good example is the discovery of the Las Lagunas Norte deposit in the Alto Chicama district of northern Peru, where high-sulfidation epithermal mineralization is hosted in clastic sedimentary rocks rather than in volcanic rocks, as favored by the classical model.

Robert, F., et al. Models and Exploration methods for Major Gold Deposit. Baffinland Iron Mines Corporation is currently extracting the highest grade BIF-hosted direct shipping iron ore in the world from their flagship Deposit No.1 on north Baffin Island.

This deposit and several other prospects are hosted within the isoclinally folded Mary River Group, a Neoarchean greenstone belt terrane hosting Algoma-type BIF, ultramafics volcaniclastics and : Sean A Fulcher.

Billerica quadrangle area in Northeast-Central Massachusetts Compiled by Byron D. Stone and Janet R. Stone Open-File Report C map presents a detailed description of local geologic map units, the genesis of the deposits, and age correlations among units.

Regional summaries of these maps and unpublished maps discuss theFile Size: KB. Department of Geology and Mineral Industries. The page text describes procedures used to interpret data, criteria used to define lineaments, and geologic control of the expression of faults and lineaments and presents a tectonic interpretation of the study area.

Included with the text are two two-color topo­. A geologic map or geological map is a special-purpose map made to show various geological features.

Rock units or geologic strata are shown by color or symbols. Bedding planes and structural features such as faults, folds, are shown with strike and dip or trend and plunge symbols which give three-dimensional orientations features.

Stratigraphic contour lines may be used to illustrate the. Porphyry copper deposits are the world’s most important source of copper.3–2. Mars. Vikre Abstract This report contains a revised descriptive model of porphyry copper deposits (PCDs).

gold and silver). and with silver a by-product in many deposits. gold and silver. long mine lives. Barton. 3D geological modeling of lithogeochemical and geological data provides insight into the role of the sulfide ore horizon and associated footwall hydrothermal alteration in localizing shear strain in the Flin Flon volcanogenic massive sulfide deposits, Canada, as deformation evolved from brittle-ductile to ductile regimes during collisional stages of the – Ga Trans-Hudson orogeny.

3D Cited by: 2. These deposits are characterized by low-grade (15 g/ ton) ores that are extensive, finely disseminated. The Carlin-Gold Acres district of Nevada is the type location. (8) Gold deposits in quartz-pebble conglomerates and quartzite Largest and most productive gold deposits, accounting for 50 percent of the worlds Size: KB.

Gold deposits of the meso-epithermal carbonate type were first proposed based on the study of the Baguamiao gold deposit. This new type of gold deposits has many unique characteristics as follows: (1) Obviously strata-bound. The gold deposits are hosted in Middle Devonian turbidite formations; (2) Structurally controlled.

Structure is an important factor leading to metallogenesis of this Author: Zheng Zuoping, Yu Xueyuan, Guo Jian. Geology and Mineral Deposits of Washoe and Storey Counties Nevada Including Geologic Map on *FREE* shipping on qualifying offers.

Geology and Mineral Deposits of Washoe and Storey Counties Nevada Including Geologic MapManufacturer: University of Nevada, Reno, Nevada. Arizona Bulletin Manganese ore deposits in Arizona. By Eldred D. Wilson and G.

Butler. (Also MTS 32). p., 1 figure. Covers the state by county, district and mine and claim. (Good. Spine ends chipped.) $7. Arizona Bulletin Geology and ore deposits of the Oatman and Katherine districts, Arizona. By Carl Lausen. B D / DeWitt, E. and Waegli, J.

/ GOLD IN METAMORPHIC ROCKS - PART I,pb, 36 pages, 14 figs., 3 tables, $ 40 [Includes: Gold in the United Verde Massive Sulfide Deposit, Jerome, Arizona and the Alaska-Juneau and Treadwell Lode Gold Systems]. Evolution of Calc-Alkaline Volcanism and Associated Hydrothermal Gold Deposits at Yanacocha, Peru** ANTHONY A.

LONGO,†,1,* JOHN H. DILLES,2 ANITA L. GRUNDER,2 AND ROBERT DUNCAN3 1Department of Geosciences, Oregon State University, Corvallis, Oregon and Minera Yanacocha and Newmont Mining Corporation, Cajamarca, Peru.

The Mule Canyon mine exploited shallow, low-sulfidation, epithermal Au-Ag deposits that lie near the west side of the Northern Nevada rift in northern Lander County, Nevada.

Mule Canyon consists of six small deposits that contained premining reserves of about Mt at an average grade of g Au/tonne. It is an uncommon mafic end member of low-sulfidation Au-Ag deposits associated with. Short Course: Geology of Australian Gold Deposits Date: Nov Online Registration Available.

Location: Como, Western Australia Big Bell / Hemlo-type deposits at high metamorphic grade: much better than we thought and he subsequently returned to this area as General Manager Geology with Great Central Mines. With Dr Julian. The Golden minute quadrangle comprises an area of about km.

2 (61 mi. 2) ages of units. Data depicted on this geologic quadrangle map are based on deposits southeast of the village of Golden and lode copper and gold deposits in the San Pedro Mountains.

The Old Placers District includes gold placer deposits and lode gold,File Size: KB. Mineral Deposit • • u.s. ' Models ' GEOLOGICA'L 'SURVEY BULLETIN I AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY • Instructions on ordering publications of the U.S.

Geological Survey, along with the last offerings, are given in the current-year issues of the monthly catalog "New Publications of the U.S.

Geological Survey.". GEOLOGIC MAP OF WASHINGTON - NORTHWEST QUADRANT by JOE D. DRAGOVICH, ROBERT L. LOGAN, HENRY W. SCHASSE, TIMOTHY J. WALSH, WILLIAM S. Learn geology with free interactive flashcards. Choose from different sets of geology flashcards on Quizlet. Examples of deposits with exposed transitions include Lepanto-Far Southeast, Pdf (Arribas et al., ; Hedenquist et al., ), and Wafi, Papua New Guinea (Tau-Loi and Andrew, ).

Thus, study of the deeper parts of epithermal Au-Cu deposits might lead to a better understanding of the epithermal-to-porphyry transition, aid.The coastal area of Batticaloa district, Sri Lanka, is composed of younger Quaternary sediment deposits that extend along the Eastern coastal region (Katupotha, ).

The Batticaloa lagoon is formed due to the isolation of the water bodies by complex barrier systems. This book ebook the end product of this research project which involved visits to mines in Canada, Australia and Papua New Guinea and a six month visit by the authors to the Rock Reinforcement Group of the C.S.I.R.O.

in Perth, Australia.