porphyry gypsum deposits

Porphyry (geology) Wikipedia

Porphyry is a textural term for an igneous rock consisting of large-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate rich, generally aphanitic matrix or groundmass.

Porphyry Cu deposits containing gypsum USGS

Name of deposit Deposit type State or Province Country; Bajo de San Lucas: 17: Catamarca: Argentina: San Jorge: 17: Mendoza: Argentina: Ankavan: 17: Pambak ore district

Porphyry Cu deposits containing anhydrite/gypsum

Name of deposit Deposit type State or Province Country; Agua Rica: 17: Catamarca: Argentina: Bajo de la Alumbrera: 20c: Catamarca: Argentina: Kadjaran: 17 (not specified)

Gypsum Wikipedia

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO 4 ·2H 2 O. It is widely mined and is used as a fertilizer, and as the main constituent in many forms of plaster, blackboard chalk and wallboard.

Crystal class: Prismatic (2/m), H-M symbol: (2/m)

Preliminary Model of Porphyry Copper Deposits USGS

Porphyry copper deposits result from the condensation of supercritical fluids derived from a crystallizing magma reservoir or set of linked reservoirs in the shallow crust; most likely, the source reservoirs are at depths of 8–10 km or more.

PORPHYRY COPPER-GOLD MINERALISATION IN THE NEARA ARC

porphyry-style deposits along a narrow NNW-trending belt in SE Queensland was described by Horton (1978), and significant deposits are localised by lineaments transverse to the regional structural base.

Porphyry copper-gold mineralisation in the Neara Arc

Porphyry copper-gold mineralisation in the Neara Arc: spotlight on the Booubyjan Intrusive Complex Jose Veracruz1,2, Paul Ashley2, Joshua Leigh1, Nancy Vickery2, -(1ActivEX Limited, 2University of New

NEW PORPHYRY COPPER TARGET RESULTING FROM COLLABORATIVE

Page 1 29 July 2015 NEW PORPHYRY COPPER TARGET RESULTING FROM COLLABORATIVE MOU EXPLORATION IN SOUTHERN PERU Highlights March 2015 MOU between Latin Resources Limited"s Peruvian subsidiary, Peruvian

Porphyry Cu " Minerals " Igneous Rock scribd

McMillan, W.J. (1991): Porphyry Deposits in the Canadian Cordillera; in Ore Deposits, Tectonics and Metallogeny in the Canadian Cordillera, B. C. Ministry of Energy, Mines and Petroleum Resources, Paper 1991-4, pages 253-276.

Descriptive model of Porphyry Au USGS

DESCRIPTIVE MODEL OF Porphyry Au. MODEL NUMBER 20d. BY James J. Rytuba and Dennis P. Cox BRIEF DESCRIPTION. DEPOSIT TYPE: Porphyry Au OTHER NAMES FOR SAME TYPE: Stockwork Au, Lihir Island Au

Porphyry deposits and oxidized magmas ScienceDirect

Porphyry deposits supply most of the world"s Cu and Mo resources. Over 90% of the porphyry deposits are found at convergent margins, especially above active subduction zones, with much fewer occurrences at post-collisional or other tectonic settings.

Stable isotopic composition of soil calcite (O, C) and

Soils overlying two porphyry Cu deposits (Spence, Gaby Sur) and the Pampa del Tamarugal, Atacama Des-ert, Northern Chile were collected in order to investigate the extent to which saline groundwaters influ- ence ‘‘soil"" chemistry in regions with thick Miocene and younger sediment cover. Soil carbonate (calcite) was analyzed for C and O isotopes and pedogenic gypsum for S isotopes

HYPERSPECTRAL CORE LOGGING MINERAL CHARACTERISATION

The Endeavour deposits are variants of silica saturated, alkalic, porphyry Cu-Au systems, with mineralisation centred on discrete polyphasal monzonite porphyries with relatively limited lateral extent (5 100 m), but displaying significant vertical continuity (over 1 km).

L Porphyry

ASSOCIATED DEPOSIT TYPES: Porphyry W deposits may be part of a spectrum of deposits that include Climax-type Mo deposits as one end-member and porphyry Sn deposits as the other . Vein/replacement W, Sn, Ag deposits may be associated ( I05 , H07 ), e.g. Logjam Ag-Pb-Zn veins peripheral to the Logtung W-Mo deposit.

Antapacay Porphyry Copper-Gold Project Peru

DATA METALLOGENICA DEPOSIT DESCRIPTION Antapacay Porphyry Copper-Gold Project Peru Bart Stryhas, BHP, October 2000 The Antapacay project is a medium sized, moderate to high grade, hypogene porphyry copper-

The geology, structure and mineralisation of the Oyu

The Oyu Tolgoi cluster of seven porphyry Cu-Au-Mo deposits in southern Mongolia, define a narrow, linear, 12 km long, almost continuously mineralised trend, which contains in excess of 42 Mt of Cu and 1850 t of Au, and is among the largest high grade porphyry Cu-Au deposits in the world.

6 Intrusion-relatedgold deposits Springer

6 Intrusion-relatedgold deposits R.H. SILLITOE 6.1 Introduction A broad spectrum of gold mineralization styles is found in the epizonal intrusive environment, and a number of these give rise to world-class gold deposits (Figure 6.1). Here the spectrum is subdivided into: (a) intrusion-hosted stock­ work/disseminated deposits of both porphyry and non-porphyry types, the former possessing all

The geology, structure and mineralisation of the Oyu

The Oyu Tolgoi cluster of seven porphyry Cu-Au-Mo deposits in southern Mongolia, define a narrow, linear, 12 km long, almost continuously mineralised trend, which contains in excess of 42 Mt of Cu and 1850 t of Au, and is among the largest high grade porphyry Cu-Au deposits in the world.

TITANIUM IN TAILINGS OF PORPHYRY DEPOSITS IN BRITISII

TITANIUM IN TAILINGS OF PORPHYRY DEPOSITS IN BRITISII COLUMBIA By 2. D. Hora and Y.T.J. Kwong INTRODUCTION Rutile, ilmenite, and, to a lesser degree, sphene are the most common

Authors: D HoraAbout: Titanium

Chemistry of magmatic and alteration minerals in the

alteration zoning, typical of porphyry copper deposits, are well developed. Mineralization occurs in quartz-sulfide stockworks and as Mineralization occurs in quartz-sulfide stockworks and as sulfide disseminations in the porphyritic intrusion and the immediate wall rocks.

Published in: Turkish Journal of Earth Sciences · 2014Authors: Morteza Einali · Saeed Alirezaei · Federica Zaccarini

porphyry copper deposit at El Salvador, Chile " Economic

Abstract. The formation of the porphyry copper deposit at El Salvador culminated volcanic activity in the Indio Muerto district. Host rocks for the ore are Cretaceous andesitic flows and sedimentary rocks overlain unconformably by lower Tertiary volcanics.

Copper British Geological Survey

Porphyry copper deposits are currently the world"s main source of copper (50–60% of world production), molybdenum (99% of world a sedimentary rock composed of minerals produced by evaporation of water e.g. gypsum and rock salt. 21Stratiform: an ore deposit that occurs as a specific sedimentary bed. 22Permeable: allows a gas or fluid to move through it. www.mineralsuk Copper

Golden Cross Resources COPPER HILL PORPHYRY Cu -Au DEPOSITS

Golden Cross Resources COPPER HILL PORPHYRY Cu -Au DEPOSITS IGC Field Trip Molong, Sunday, August 12th, 2012 . Kim Stanton-Cook . GCR Managing Director

The Porphyry Copper Deposit at El Salvador, Chile

The Porphyry Copper Deposit at E1 Salvador, Chile Fig. 1. Aerial view of Cerro Indio Muerto, looking west, during construction of the E1 Salvador mine.

MAPPING MINERALS AT THE COPPER FLAT PORPHYRY, NEW MEXICO

Flat porphyry, polymetallic fissure veins that radiate from the porphyry, carbonate replacement deposits, weakly mineralized skarn deposits, jasperoids, and placer gold deposits derived from the

Geology of the Los Pelambres Porphyry Copper Deposit, Chile

Geology of the Los Pelambres Porphyry Copper Deposit, Chile RICHARD H. SILLITOE Abstract The Los ?elambres porphyry copper deposit, located in the Andean Cordillera of Coquimbo Province, Chile, is related to an Upper Miocene tonalite stock which was passively emplaced into Upper Jurassic-Middle Cretaceous andesitic volcanic and sedimentary strata which constitute a north-south-trending

Published in: Economic Geology · 1973Authors: Richard H SillitoeAbout: Copper

Porter GeoConsultancy Ore Deposit Description

The Mirador and Mirador Norte (3.5 km to the NW), porphyry copper-gold-silver deposits are located in the Corriente Copper-Gold Belt of southeastern Ecuador, at 800 to 1800 m asl in the province of Zamora-Chinchipe, ~340 km south of Ecuador"s capital city of Quito, 70 km ESE of the city of Cuenca, and ~5 km to the west of the locally north