characteristics of epithermal deposits

characteristics of epithermal deposits

Epithermal Gold Deposits Characteristics

2015-5-23 · Pamukkale’s Terraces. A fascinating group and characteristic of Epithermal gold deposits is that you can virtually see them forming today, simply by visiting hot

Epithermal Deposits - Mining Geology HQ

2019-11-30 · sulphidation epithermal deposits. 1) Magmatic vapour condenses in meteoric water 2) Gold transported as Au (HS) 2-3) Water rises and boils, releasing H. 2. S and destabilizing Au(HS) 2-4) Gold deposits as the native metal Au(HS) 2-+ H + + 0.5 H. 2. O = Au + 0.25O. 2 + 2H 2S. Removed by boiling

Characteristics that distinguish types of epithermal deposits

Three distinctive groupings of epithermal deposits were recognized from a literature study of fifteen well-described precious- and base-metal epithermal districts, supplemented by L. J. Buchanan's 1981 compilation of data from 47 less completely documented deposits. The three groups are distinguished primarily by the type of alteration and the sulfur fugacity indicated by the vein mineral ...

(PDF) Epithermal gold deposits. Styles, characteristics ...

1995-9-30 · Figure 1. Generalized sketches showing the relation of fluid types to alteration zoning in the two styles of epithermal deposits. (a) In low-sulfidation

Epithermal Gold Deposits : their characteristics & modeling

2007-1-25 · Ore deposits: Classification vs Modeling Each ore deposit is unique like a person’s finger print This uniqueness arises out of : ¾fundamental differences in processes and environments ¾local, site-specific geologic variations And produces an extremely large variation in characteristics ¾If we group the deposits according to their characteristics, we get a

Epithermal | Mining Geology HQ

Epithermal deposits are important sources of gold and silver, representing about 30% of total gold metal production per year. There are two principal styles of epithermal

(PDF) Exploration for Epithermal Gold Deposits

Epithermal gold deposits have size, geometry, and grade variations that can be broadly organized around some genetic classes and, therefore, influence the exploration

Characteristics and controls of the largest porphyry ...

2007-5-9 · These large porphyry‐type deposits conform to a single overall model, whereas the large epithermal gold deposits are varied in both genetic type and mineralisation style. Most regional and local characteristics of the largest porphyry and epithermal deposits fail to explain convincingly their extremely high gold contents.

Characteristics that distinguish types of epithermal deposits

Three distinctive groupings of epithermal deposits were recognized from a literature study of fifteen well-described precious- and base-metal epithermal districts, supplemented by L. J. Buchanan's 1981 compilation of data from 47 less completely documented deposits. The three groups are distinguished primarily by the type of alteration and the sulfur fugacity indicated by the vein mineral ...

Epithermal | Mining Geology HQ

Epithermal deposits are important sources of gold and silver, representing about 30% of total gold metal production per year. There are two principal styles of epithermal mineralization: low sulphidation (LS) and high sulphidation (HS) epithermal deposits

Chemical, isotopic and mineralogical characteristics of ...

2016-6-1 · The number of publications on epithermal deposits is big and thus only a few papers can be cited for reference. An overview of epithermal metal deposits has been presented by White and Hedenquist (1994), Leach and Corbett (1995), Albinson et al. (2001) and Corbett (2002).All the studies mentioned above focus their investigation on precious and base metals.

Geological characteristics of epithermal precious and base ...

Epithermal deposits are important sources of gold and silver that form at 20 wt percent NaCl equiv for Ag-Pb-Zn deposits. Stable isotope data indicate that hydrothermal solutions were composed mostly of deeply circulated meteoric water, with a nil to small and variable component of magmatic water. Epithermal deposits associated with quartz + alunite ± pyrophyllite ± dickite ± kaolinite ...

Geological and mineralization characteristics of the ...

2019-11-22 · Kestanelik epithermal gold deposit is situated in the Biga Peninsula, which hosts numerous metallic deposits belonging to the Tethyan Metallogenic Belt. In the Biga peninsula the Tethyan Metallogenic Belt is represented by a Neo-Tethyan suture zone. Discovered deposits along the belt are commonly associated with Cenozoic magmatism ranging between 52 and 18 Ma in age, formed due

High SulphidationEpithermal Deposits

2018-2-2 · High sulphidation epithermal deposits form in Continental and Oceanic Arc settings as subducting oceanic plates melt and generate large intrusive complexes and associated hydrothermal circ ulation cells. Correct identification of Continental and Oceanic Arc settings is a pre‐requisitefor successful exploration. Paleozoic Belts Paleozoic Belt

Geophysical characteristics of the southern Coromandel ...

2021-3-4 · EPITHERMAL DEPOSITS Magnetic characteristics High resolution, low level aeromagnetic (and radiometric) surveys have been carried out over several areas of the southern CVZ in the last 20 years, typically with ground clearances of 60-120 m and line spacings of 100-200 m (Irvine and Smith, 1990; Stagpoole et al., 2001; Morrell et al., ...

Characteristics and Mineralization Age of the Fukusen No ...

2010-11-23 · The Fukusen No. 1 vein is located in the southeastern part of the Yamada deposit, Hishikari epithermal gold deposits, southern Kyushu, Japan. 40 Ar/ 39 Ar plateau ages of adularia from the margin and the center of the Fukusen vein are determined to be 0.617 ± 0.024 Ma and 0.606 ± 0.009 Ma, respectively. The Fukusen No. 1 vein shows banding structure composed mainly of quartz, adularia

Characteristics of high-sulfidation epithermal deposits ...

Characteristics of high-sulfidation epithermal deposits, and their relation to magmatic fluid. Magmas, fluids, and ore deposits, 1995. Erol Gürcan. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. Read Paper.

Epithermal Gold Deposits : their characteristics & modeling

2007-1-25 · Ore deposits: Classification vs Modeling Each ore deposit is unique like a person’s finger print This uniqueness arises out of : ¾fundamental differences in processes and environments ¾local, site-specific geologic variations And produces an extremely large variation in characteristics ¾If we group the deposits according to their characteristics, we get a

(PDF) Epithermal gold deposits Styles characteristics an ...

Epithermal gold deposits Styles characteristics an. Published in SEG Newsletter, 1995, No. 23, pp. 1, 9-13 EPITHERMAL GOLD DEPOSITS: STYLES, CHARACTERISTICS AND EXPLORATION Noel C. White1 and Jeffrey W. Hedenquist 2 1 BHP Minerals International Exploration, 229 Shepherds Bush Road, London W6 7AN, U.K. 2 Mineral Resources Dept., Geological ...

Characteristics of a low-sulfidation epithermal deposit in ...

Characteristics of a low-sulfidation epithermal deposit in the River Reef Zone and the Watuputih Hill, the Poboya gold prospect, Central Sulawesi, Indonesia: Host rocks and hydrothermal alteration. Syafrizal, Tomy Alvin Rivai, Kotaro Yonezu, Damar Kusumanto, Koichiro Watanabe, Arie Naftali Hawu Hede.

Characteristics of high-sulfidation epithermal deposits ...

BibTeX @INPROCEEDINGS{Arribas95characteristicsof, author = {Antonio Arribas}, title = {Characteristics of high-sulfidation epithermal deposits, and their relation to magmatic fluid}, booktitle = {in Magmas, Fluids, and Ore Deposits (Ed: J F H Thompson), Mineralogical Association of Canada, Short Course Series}, year = {1995}, pages = {23--419}}

Characteristics of High Sulphidation Epithermal Gold ...

2019-3-22 · Characteristics of High Sulphidation Epithermal Gold Deposits of the Mio-Pliocene Age Volcanic Belt, Chile and Argentina 2018. Mirasol Resources Ltd. 910-850 West Hastings Street Vancouver, BC Canada V6C 1E1 (604) 602-9989 mirasolresources. TSXV - MRZ

Structure of Epithermal - Greg Corbett

2016-7-14 · Classification of Epithermal Deposits Epithermal Au-Ag deposits are classified (Corbett and Leach, 1998; Corbett, 2009 and references therein) as formed above the porphyry environment at crustal levels within about 1 km of the surface and subdivided on the basis of ore mineralogy, hydrothermal alteration and fluid flow paths (figure 1). Figure 1.

EPITHERMAL AU-AG DEPOSIT TYPES – IMPLICATIONS

2016-7-14 · The epithermal quartz Au-Ag deposits were defined (Leach and Corbett, 1995; Corbett and Leach, 1998) as the epithermal end member of the intrusion-related series, using mainly southwest Pacific rim examples, and so commonly

Epithermal Gold Deposits Part 1! - USGS

2010-9-19 · Epithermal Gold Deposits Part II Geology and Gold Deposits of the Oatman District, Northwestern Arizona By Ed DeWitt, Jon P. Thorson,1 and Robert C. Smith2 Abstract Mines in the Oatman mineralized district, near Oatman in northwestern Arizona, have produced more than 1.98 million ounces of gold from mid-Tertiary, epithermal, silver-

Understanding Low Sulphidation (LS) Epithermal Deposits

2018-2-2 · LS Epithermal deposits are major sources of gold and silver. Lead and zinc are common at depth and there is usually a good correlation between silver and lead grades. Copper may be present in the deepest levels of some systems. FDN – 25.4 Mt @ 8.21 g/t Au, 11.0 g/t Ag (P+P, Dec.