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PDF Kelian is the largest gold-only deposit in Indonesia (241 t Au). The first gold was poured in 1992 and when the mine closed in 2004 a total of 179 t Au and 145 t Ag had Volcaniclastics, hydrothermal breccias, margins andesite stocks.

The martabe Au-Ag high-sulfidation epithermal - UTas ePrints

consists of four high-sulfidation epithermal gold-silver deposits over an 8 km strike on an optimized open-pit mine design which extends approximately 900 m a Late Tertiary porphyritic dacite and andesite dome and diatreme complex that was .. Location of t

Batu Hijau Copper-Gold Mine - Mining Technology Mining News

Batu Hijau copper-gold mine is located on the Indonesian island of are overwhelmingly hosted by composite stocks of diorite to quartz-diorite and, to a much

Geology of the High Sulfidation Copper Deposits, Monywa Mine

Ore is hosted by mid-Miocene andesite or dacite porphyry intrusions, and by early mid-Miocene gold mineralization, and their classification as high sul- . Indo-. Burman Ranges: EB, Eastern belt; J, Jade mines uplift;. WB, Western belt.

dissertation - Montanuniversität Leoben

Regional geology and major gold and copper deposits in Indonesia. Aerial photograph of Grasberg gold mine . . Fig. 30. Photomicrograph of meta-andesite.

Diatreme Breccias at the Kelian Gold Mine, Kalimantan, Indonesia

gold mineralization at the Kelian gold mine, Kalimantan, Indonesia. Prior to brecciation, andesite intrusions. (19.7 ± 0.06 Ma) were emplaced into a package of

Miwah Gold Project – East Asia Minerals Corporation EAS-V

East Asia Minerals Miwah Gold Project Mineral Resource Summary in andesitic and dacitic lavas and tuffs, with gold hosted mainly in andesite. southern extent of the upper ore body; and vertical high-grade breccia feeder Miwah is Located in Indonesia's

Batu Hijau mine - Wikipedia

The Batu Hijau mine is an open pit copper-gold mine operated by PT. Amman Mineral Nusa Tenggara. The mine is located 1,530 kilometres (950 mi) east of the Indonesian capital The host rock for porphyry copper deposits in southeast Asia is typically diorite and qua

Mining in Indonesia - PwC

1 May 2018 ore was well received by certain mining companies, many parties, industry, with significant production of coal, copper, gold, tin, bauxite,.

Chapter Ill. Gold Deposits Introduction Classification of gold deposits

works hypogene quartz-pyrite ores in rhyolite breccias (King- dom of Saudi Arabia, 1965, rhyolite, andesite, dacite and breccias of these rocks invade the Tertiary . The gold mines in Indonesia (Sumatra, Java, Celebes and. Borneo) and


CAMBODIAN AND INDONESIAN EXPLORATION PROJECTS Photo 12 Traditional zircon and gold mining operation, Buntok, Kalimantan Site of the historic Phnum Lung gold mine. .. maps (1971) indicate some conformable volcanic units (rhyolite to andesite) at the base of

mercury and arsenic contamination from small scale gold mining

gold mine. 1 Introduction. Indonesia, composed of several volcanic arcs rang- ing from Tertiary to . ite porphyry, hornblende diorite, and hornblende andesite

Influence of Stope Design on Stability of Hanging Wall Decline in

Cibaliung Underground Gold Mine applies cut and fill mining method to optimize ore Several gold mining in Indonesia applied this method including Nusa The decline of hanging wall consists of smectiteillite andesite breccia, while the

Grasberg Mine, Gunung Bijih District (Grasberg District), Carstensz

The largest gold mine and the third largest copper mine in the world. intrusion, alteration, and mineralization at the Grasberg Cu-Au deposit, Papua, Indonesia.

Asiamet Lifts Beutong Copper-Gold Project Interest to 80% Asiamet

25 Jun 2018 Beutong is held under a Mining Business License for Production Indonesia (Freeport-McMoRan Copper & Gold), Wafi-Golpu PNG At depth in the BEP, large clasts of potassic altered (biotite, potassic feldspar and magnetite) diorite . Bornite

PT Merdeka Copper and Gold Tbk. IDX Code: MDKA As at 31

31 Jan 2019 Table 1: Tujuh Bukit Mine – Key Production Statistics. Unit. Mar . comprising over 99% Indonesian Nationals and less than 1% Expatriates.

Sangihe Gold Project – East Asia Minerals Corporation EAS-V

266,000 oz Au including near surface oxides for near-term production cash flow located between the northern tip of Sulawesi Island (Indonesia) and south tip of East Asia Minerals Sangihe Gold Project Mineral Resource Summary and underlain with andesite fl

Tampakan Gold Copper Project - Mining Technology Mining News

The Tampakan copper gold mine is located in the Southern Philippines. Towards the south, the Tampakan Andesite sequence, the main primary stratigraphic

Major Mines & Projects Grasberg Mine

Grasberg Open Pit / Underground Mine is located 60 km NE from Timika, Indonesia. FCX's Indonesia ore bodies are located within and around two main igneous intrusions, the Grasberg monzodiorite and the Ertsberg diorite. These gold concentrations usually oc

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