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WASTE ROCK MANAGEMENT AT SANGATTA COAL MINE SETTING • Sangatta Coal mine formerly owned and operated by PT Kaltim Prima Coal is located in undulating coastal uplands of East Kalimantan 1 degree north of the equator • The site has an equatorial climate with a high annual rainfall of 2500mm-drillhole spacing pt adaro coal mines-,Media Release Rio TintoA range of drill hole spacing limits were defined to reflect the inherent variability of the six seam groups modelled within the deposits Typical distances for structure confidence classification are 125m to 250m for high 250m to 500m for medium and 1 500m to 3 000m for low …… Get More

WASTE ROCK MANAGEMENT AT SANGATTA COAL MINE

SETTING • Sangatta Coal mine formerly owned and operated by PT Kaltim Prima Coal is located in undulating coastal uplands of East Kalimantan 1 degree north of the equator • The site has an equatorial climate with a high annual rainfall of 2500mm

Media Release Rio Tinto

A range of drill hole spacing limits were defined to reflect the inherent variability of the six seam groups modelled within the deposits Typical distances for structure confidence classification are 125m to 250m for high 250m to 500m for medium and 1 500m to 3 000m for low

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PT Adaro Indonesia Overview PT Adaro Indonesia signed a contract with the government which was represented by state-owned mining firm PT Tambang Batubara Bukit Asam on November 16 1982 to develop a coal mine in the Tanjung district in South Kalimantan province Under the contract Adaro Indonesia is the sole

Comparison of three geostatistical approaches to quantify

The uncertainty related to estimates of coal chemical and physical attributes is clearly in part related to drill hole spacing — closer spaced drilling increases the ratio of sampled to unsampled volume and therefore inevitably reduces the uncertainty associated with the estimated values

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Adaro Jasabara Indonesia AJI is a wholly owned subsidiary of Adaro Energy Tbk and acts as a service company to Adaro Energy and its subsidiaries including PT Adaro Indonesia PT Balangan Coal

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Adaro Indonesia second-largest coal producer in Indonesia operates a major coal mine in the Tanjung district of South Kalimantan Province in Indonesia They are based in Jakarta The company has group subsidiaries ranging from thermal coal mining and trading to barging and ship-loading operator

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Practical Application of Drill Hole Spacing Analysis in Coal HDR Practical Application of Drill Hole Spacing Analysis in Coal Resource Estimation confidence for two operating coal mines and one exploration prospect all of More details Get Price

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