Minerals | Free Full-Text | Formation of the …
The newly discovered Magushan Cu-Mo polymetallic deposit, located in southeastern Anhui, eastern China, is a middle-scale skarn-type polymetallic deposit with different ore types of veinlets-disseminated …
Zircon U-Pb age and geochemical characteristics of ore …
The Duobuza deposit is the first porphyry-type copper deposit discovered with giant prospect in the Bangongco metallogenic belt. ... patterns show enrichment in light REEs relative to heavy REEs. The major, rareearth, and trace elements of the ore-bearing granodiorite porphyry show characteristics of adakites, formed in an island arc setting ...
Contrasting Magma Compositions between Cu and Au …
The Fenghuangshan copper–gold deposit, located in the Tongling ore cluster field along the Lower Yangtze metallogenic belt (LYRB) in eastern China, mainly consist of skarn ores hosted in ...
Porphyry copper deposit its geological, types and important …
ore minerals (copper, gold, molybdenum), which are then able to be transported to upper . ... This paper presents REE abundance pattern and REE geochemistry of granodiorite porphyry, skarns, as ...
Copper Deposits
Major ore minerals are native copper, chalcocite, bornite, chalcopyrite, and native silver, both in the matrix and as amygdules in the porous roofs of basalt flows and in veinlets within the basalts. ... The greenish of the film-like malachite and azurite are observed in the potassium metasomatized medium-grained granodiorite, and the …
Igneous Rocks: Minerals, Geochemistry and Ore Potential
The newly discovered Shimensi deposit is a super-large tungsten-copper (W–Cu) deposit with a metal reserve of 742.55 thousand tonnes (kt) W and 403.6 kt Cu. The orebodies are hosted in Mesozoic granites, which intruded the poorly documented Shimensi granodiorite belonging to the Jiuling [...] Read more.
Implications for Metallogenesis and Tectonic Evolution of Ore …
The Tongkuangyu copper deposit in Zhongtiaoshan at the southern margin of the North China Craton is one of the oldest porphyry Cu deposits in the world and its metallogenesis and tectonic evolution have been debated. Here, porphyritic intrusion geochemical and geochronological data are reported to identify the diagenetic age, …
Hypogene texture and mineral zoning in a copper-bearing granodiorite …
Hypogene texture and mineral zoning in a copper-bearing granodiorite porphyry stock, Santa Rita, New Mexico ... Hypogene Zoning and Ore Genesis, Central City District, Colorado ... Petrologic Studies. Remote sensing and GIS studies of alteration and predictive mineral exploration in the Central Volcanic Arc, Myanmar Myanmar: Geology, …
Petrography, Chronology and Hf Isotope Constraints on Origin of the Ore
The Zhibula skarn-type copper polymetallic deposit is a large copper deposit. It is located 2–3 km south of the Qulong porphyry copper deposit, in the middle section of the Gandise metallogenic belt in Tibet. The ores are commonly bedded, stratoid and vein-like hosted in the interformational detachment zone between tuff and marble and in the fracture zone. …
Petrogenesis and metallogenic potential of granodiorite …
The ore-bearing granodiorite porphyry samples have high logfO 2 values ranging from − 12.4 to − 10.7, corresponding to ΔFMQ values of 0.6–5.2 (FMQ is the fayalite-magnetite-quartz buffer). ... Copper minerals occur as disseminations in the …
Copper Mineral Properties, Uses and Occurrence
Azurite: This blue mineral has the chemical formula Cu3(CO3)2(OH)2 and is also formed by the weathering of copper ore deposits. It has a hardness of 3.5-4 on the Mohs scale and is often …
Mineral chemistry aspects of U-, Th-, REE-, Cu-bearing …
El-Regeita shear zone occurs at south central Sinai massif attains the interest of many authors due the occurrence and mining of copper mineralization. The highest …
(PDF) Implications for Metallogenesis and Tectonic Evolution of Ore
The Tongkuangyu copper deposit in Zhongtiaoshan at the southern margin of the North China Craton is one of the oldest porphyry Cu deposits in the world and its metallogenesis and tectonic ...
Neoformation of exotic copper minerals from gel-like
At the Exótica deposit, south of the giant porphyry copper deposit of Chuquicamata (Atacama Desert, Chile), Cu-rich groundwater seeped out at several locations in the Exótica open pit (Mina Sur) during sampling in 2009–2011. At their outflows, these solutions formed blueish and greenish copper-bearing gel-like precipitates. These …
S and Pb Isotopic Constraints on the Relationship between …
The Yangla copper deposit, located in western Yunnan Province, China, is a typical giant, newly started mining copper deposit with an estimated Cu reserves of about 1,200,000 tons. The deposit is spatially and temporally associated with the Linong granodiorite, which is rich in SiO2 (SiO2=58.25 wt%–69.84 wt%) and alkalis …
Contrasting apatite geochemistry between ore-bearing and ore …
2) The ore-bearing granodiorite porphyry at Kalmakyr is characterized by high oxygen fugacity and high H 2 O, Cl, and S contents compared to the ore-barren intrusions. 3) A high Cl content (0.4–2.0 wt%) and low F/Cl ratio (0.8–8.0) in magmatic apatite can be used as an important indicator to prospect gold-rich porphyry Cu deposits.
Rare earth minerals in ores of the malmyzhskoe gold-copper …
Composition and typomorphic features have been studied for rare earths-bearing minerals from the central part of the Malmyzhskoe gold-copper-porphyry deposit. This deposit is located in the Russian Far East, approximately 220 km northeast from Khabarovsk city. The deposit porphyry clusters occur as diorite and granodiorite stocks …
Petrogenesis of Ore-Related Granodiorite Porphyry in …
Jia et al., 2014; Tang et al., 2015a, b). Copper is the primary commodity in the Jiande deposit, with Au– Ag–Pb–Zn as by-products. Ore minerals are pyrite, chalcopyrite and bornite, with minor native gold, silver sulfate minerals, sphalerite, and magnetite. Gangue minerals are quartz, garnet, with minor calcite and dolomite.
Copper (Cu) Ore | Minerals, Occurrence » Geology Science
Copper (Cu) ore is a naturally occurring mineral deposit that contains copper in varying concentrations. It is an important industrial metal that has been used by human civilizations for thousands of years due to its excellent electrical and thermal conductivity, high ductility, and resistance to corrosion. Copper is widely used in various …
Minerals | Free Full-Text | Geochemical Characteristics of the …
The Dongxiang tungsten–copper deposit is a large W–Cu deposit located in the northeast of Jiangxi province in south China. Previous studies have mainly considered the geochemical and isotopic attributes of the ore deposit, but information is still lacking on the genesis and setting of Dongxiang W–Cu mineralization-related intrusive rocks. This …
Petrogenesis of Ore‐Related Granodiorite …
Copper is the primary commodity in the Jiande deposit, with Au–Ag–Pb–Zn as by-products. Ore minerals are pyrite, chalcopyrite and bornite, with minor native gold, silver sulfate minerals, sphalerite, and …
Metals, Minerals, and Society
The copper grades into a zone of 0.4 to 0.2% Cu within the biotitealtered zone at depth. Two discrete molybdenum ore shells are contained within the copper ore shell and are located proximal to the granodiorite stocks. The highest abundance of molybdenite is inward toward the stock and is zoned outward to lower grades.
Minerals | Free Full-Text | Implications for Metallogenesis …
The Tongkuangyu copper deposit in Zhongtiaoshan at the southern margin of the North China Craton is one of the oldest porphyry Cu deposits in the world and its metallogenesis and tectonic evolution have been debated. Here, porphyritic intrusion geochemical and geochronological data are reported to identify the diagenetic age, …
Petrogenesis and tectonic setting of the Bolong ore-bearing
The Bolong ore-bearing granodiorite porphyry crystallized at ca. 121 to 124 Ma. • Ore-bearing granodiorite porphyry magma formed by mixing of mafic and felsic melts. • The Bolong ore-bearing granodiorite porphyry rocks have high logfO 2 values (above FMQ +2). • The Bolong porphyry Cu Au deposit was formed in a continental arc …
Magmatic Evolution of Granodiorite Intrusions at the El …
The granodiorite porphyries at the Turquoise Gulch copper deposit record waning stages of magmatism at 42.5 to 42.0 Ma and were followed by postmineral latite dikes at about 41.6 Ma. Porphyry copper ores formed contemporaneously with porphyry intrusion centers that progressed temporally from north to south, from the small deposits …
Minerals | Free Full-Text | Geochemistry, Mineralization, and …
The Bayan-Uul porphyry Au-Cu-(Mo) deposit occurs within the Mongol–Okhotsk Orogenic Belt, which is a part of the Central Asian Orogenic Belt. To understand geotectonic, petrogenesis, mineralization, and ore-forming fluid evolution of the Bayan-Uul deposit, we report petrographic and geochemical analyses of host rocks, …
Granodiorite: Identification, Characteristics, …
The mineral composition of granodiorite consists of 20% to 60% quartz, and 35% to 90% of the total feldspar must be plagioclase. This definition is very specific, but without sophisticated methods for measuring mineral …
Alteration patterns related to copper mineralization in …
phyritic granodiorite, the main host rocks of copper mineral-ization in the Dara area. The study aims also at constraining the characters of the Cu-mineralizing fluids and the …
Contrasting magma compositions between Cu and Au …
The apatite crystals are from four Cretaceous coeval granodiorite intrusions with different styles of hydrothermal mineralization in the Tongling ore district, South …
Exploring gold mineralization in altered ultramafic rocks in …
Gold mining is an important strategic sector. The search for mineral reserves is moving deeper as more accessible shallow resources are discovered. Geophysical techniques are now being employed ...