The Gunung Gupit High- and Low-Sulfidation Epithermal …

52 A. Idrus et al. Sumbawa Islands evidently hosts several world-class por-phyry deposits (Maryono etal., 2018). In Gunung Gupit, concealed porphyry might be present.

Optimization of gold ore Sumbawa separation using gravity …

 — Most of artisanal small gold mining in Indonesia has been using amalgamation method, which caused negative impact to the environment around ore processing area due to the usage of mercury. One of the more environmental-friendly method for gold processing is gravity method.

Trace metals associated with deep-sea tailings placement at …

 — The Batu Hijau copper–gold mine is located on the southwest corner of the island of Sumbawa in the province of West Nusa Tenggara, Indonesia (Fig. 1). The mine is operated by PT Newmont Nusa Tenggara (PTNNT) and processes ore at a rate of approximately 130,000 t/d. The open-pit mine is at an elevation of 450 m above sea …

The Batu Hijau porphyry copper-gold deposit, Sumbawa …

 — The Batu Hijau porphyry Cu Au deposit lies in southwest Sumbawa Island, Indonesia. It is a world-class porphyry Cu deposit in an island are setting, and is typical of this deposit type in most features, including igneous association, morphology, hydrothermal alteration and mineralisation style.

Mineralogy and Geochemistry of Gold Ore Low Sulfidation

 — Article on Mineralogy and Geochemistry of Gold Ore Low Sulfidation -Epithermal at Lamuntet, Brang Rea, West Sumbawa District, West Nusa Tenggara Province, published in Journal of Geoscience, Engineering, Environment, and Technology 4 on by Rika Ernawati+2. Read the article Mineralogy and Geochemistry of …

Gold grade of epithermal gold ore at Lamuntet, Brang Rea, …

 — Lamuntet is one of gold ore mining area carried out by the Artisanal Small scale Gold Mining (ASGM) located in West Sumbawa, Indonesia. Most of the miners at this area are not the local miners but also those from other regions.

Optimization of gold ore Sumbawa separation using …

Optimization of Gold Ore Sumbawa Separation Using Gravity Method Shaking Table Achmad Dhaefi Ferdana1, Himawan Tri Bayu Murti Petrus1*, I Made Bendiyasa1, Irfan Dwidya Prijambada2, Fumio Hamada3 ...

SUMBAWA, INDONESIA – OAM Middle East

Iron Ore, SOUTH-EAST GUINEA; Iron Ore Investment, NIGERIA; Iron Ore Investment, SIERRA LEONE; ... CASE STUDY : SPECIALIST TRAINING, GOLD MINING OPERATION, SUMBAWA, INDONESIA . BACKGROUND. Major International client (gold, copper project) employing poorly trained local security guard force ... Gold pour, …

The Batu Hijau porphyry copper-gold deposit, Sumbawa Island, Indonesia

 — Mataram, Nusa Tenggara Barat, Indonesia bGeoseienee R and D Education Consultancy, 74 King Street, East Fremantle, 6158, W.A., Australia ( Received 15 June 1993; accepted after revision 13 August 1993) Abstract The Batu Hijau porphyry Cu-Au deposit lies in southwest Sumbawa Island, Indonesia.

Optimization of Gold Ore Sumbawa Separation Using Gravity Method

PDF | On Apr 16, 2018, Achmad Dhaefi published Optimization of Gold Ore Sumbawa Separation Using Gravity Method; Shaking Table | Find, read and cite all the research you need on ResearchGate

Optimization of gold ore Sumbawa separation using gravity …

 — Most of artisanal small gold mining in Indonesia has been using amalgamation method, which caused negative impact to the environment around ore processing area due to the usage of mercury.

Gold grade of epithermal gold ore at Lamuntet, Brang Rea, West Sumbawa

Lamuntet is one of gold ore mining area carried out by the Artisanal Small scale Gold Mining (ASGM) located in West Sumbawa, Indonesia. Most of the miners at this area are not the local miners but also those from other regions. Mineralization of this area is strong identified as low sulfidation epithermal system. There are two blocks of this mining …

Leaching and Adsorption of Gold from Lape-Sumbawa …

Emsal Yanuar and Suprapto / Procedia Chemistry 17 ( 2015 ) 59 – 65 61 2.4.2. Adsorption of gold using activated carbon Activated carbon was weighed about 0.5; 1; 2; and 3 grams, and each of them ...

Optimization of gold ore Sumbawa separation …

 — Most of artisanal small gold mining in Indonesia has been using amalgamation method, which caused negative impact to the environment around ore processing area due to the usage of mercury. …

The Batu Hijau porphyry copper-gold deposit, Sumbawa Island, Indonesia

Batu Hijau is a world-class gold-rich porphyry copper deposit, situated in Sumbawa Island, Indonesia. Deep drilling indicates that several intervals of calc-silicate rock were intersected, where they are apparently interbedded with volcaniclastic rocks. The calc-silicate rocks occur at the contact with copper-gold-bearing tonalite porphyries.

Tambora Caldera, Sumbawa Island, Indonesia. NASA Technical Reports Server (NTRS) . Tambora caldera on the island of Sumbawa, Indonesia (8.5S, 118.0E) is a large crater f

SUMBAWA, INDONESIA – OAM Middle East

CASE STUDY : SPECIALIST TRAINING, GOLD MINING OPERATION, SUMBAWA, INDONESIA BACKGROUND Major International client (gold, copper project) employing poorly trained local security guard force S…

The Onto Cu-Au Discovery, Eastern Sumbawa, Indonesia: A …

 — In 2013, a diamond drill program tested an extensive advanced argillic alteration lithocap within the Hu'u project on eastern Sumbawa Island, Indonesia. A very large and blind copper-gold deposit (Onto) was discovered, in which copper occurs largely as disseminated covellite with pyrite, and as pyrite-covellite veinlets in a tabular block ...

Full-Text Thesis

Title: The Setting, Geometry and Timing of Intrusion-Related Hydrothermal Systems in the Vicinity of the Batu Hijau Porphyry Copper-Gold Deposit, Sumbawa, Indonesia Year: 2000 Author: Steven Garwin Institution: University of Western Australia

UNTR's Sumbawa mine to enhance gold sales in 2024

 — UNTR's Sumbawa mine to enhance gold sales in 2024. Friday, September 6 2024 - 08:50AM WIB ... Indonesia's HPAL capacity to triple by 2027 Smelters turn to imports amid nickel ore deficit at home Compilation of Nickel Smelters in Indonesia The Financial Services Authority (OJK) Regulation regarding carbon trading through carbon …

The Geologic Setting of Intrusion-Related

 — The Geologic Setting of Intrusion-Related Hydrothermal Systems near the Batu Hijau Porphyry Copper-Gold Deposit, Sumbawa, Indonesia. Author (s) Steve Garwin. Doi: https://doi/10.5382/SP.09.15. Published: January 01, 2002. Cite. Share. Permissions. Abstract.

UNTR's Sumbawa mine to enhance gold sales in 2024

 — UNTR's Sumbawa mine to enhance gold sales in 2024. Friday, September 6 2024 - 08:50AM WIB ... Smelters turn to imports amid nickel ore deficit at home ... Indonesia's HPAL capacity to triple by 2027 Indonesian Nickel Book 2022 Compilation of Nickel Smelters in Indonesia ...

Analysis of Artisanal Small-scale Gold Mining Sector in West Sumbawa …

 — The high value of gold reserves in West Sumbawa Regency (WSR) and West Nusa Tenggara Province, Indonesia has resulted in an increase in small-scale gold mining activity in this area. Artisanal and small-scale gold mining (ASGM) is an attractive alternative livelihood for rural workers because it has good potential to improve the …

Optimization of gold ore Sumbawa separation using gravity …

 — Most of artisanal small gold mining in Indonesia has been using amalgamation method, which caused negative impact to the environment around ore processing area due to the usage of mercury. One of the more environmental-friendly method for gold processing is gravity method. Shaking table is one of separation equipment of gravity method used …

Trace metals associated with deep-sea tailings placement …

 — The ore mined from an open pit 450 m above sea level contains about 0.53% copper and 0.4 g/tonne gold. Crushed ore is processed through a ... Sumbawa, Indonesia, copper-gold-molybdenum mining from ...

Batu Hijau mine

The Batu Hijau mine is an open pit copper-gold mine operated by PT. Amman Mineral Nusa Tenggara (previously known as PT Newmont Nusa Tenggara).The mine is the second largest copper-gold mine in Indonesia behind the Grasberg mine of PT. Freeport Indonesia. The mine is located 1,530 kilometres (950 mi) east of the Indonesian capital Jakarta on …

The Onto Cu-Au Discovery, Eastern Sumbawa, …

This paper presents data on a very large copper-gold highsulfidation epithermal/porphyry deposit recently discovered at Onto within the Hu'u project in Eastern Sumbawa, Indonesia, in which disseminated and vein …

Geophysics of the Elang Cu-Au porphyry deposit, Indonesia, …

 — Elang is a large porphyry Cu-Au deposit situated about 70 km east of Batu Hijau on Sumbawa Island, Indonesia. The deposit is associated with a series of tonalite porphyry intrusions that are hosted by andesitic volcanics. ... The Elang system is more pyrite rich than many, leading to very strong chargeabilities, both in the ore zone and the ...

PorterGeo Database

Descriptions of major ore deposits world wide. The Batu Hijau porphyry copper-gold deposit is located on the south-western corner of the island of Sumbawa in central Indonesia. Following sale of the controlling interests held by Newmont and Sumitomo in late 2016, the deposit is controlled by PT Amman Mineral Nusa Tenggara.

Mineralogy and Geochemistry of Gold Ore Low …

study showed that low sulfidation gold ore in this area is categorized as polymetallic gold-silver system. Keywords: geochemical, gold ore, LS-epithermal, Lamuntet, mineralogy, West Nusa Tenggara 1. Introduction Gold is an important natural resource in Indonesia and many of it is done by small scale community called ASGM (UNEP, 2013).