Results 41 to 50 of about 1,142,888 (106)

The Occurrence Characteristics of Gold in the Jiaojia Gold Deposit

Yankuang ceshi, 2013
The Jiaojia Gold Mine is one of the most important gold deposits in the Laizhou-Zhaoyuan gold mine, in which gold occurrence is complex. Previous research has focused on mineral types and shapes, gold-bearing ore species and relationship between minerals.
HU Hai-xiang, NIU Gui-qiang, LIU Hong-lan, LIU Hai-long, WANG Pan-zhi   +4 more
doaj  

Confidential report on the Gold Dirt and Perigo Groups of gold mines [PDF]

, 2022
Mine report no. 853.Includes illustrations, maps.Typescript (carbon copy).Introduction -- History -- Title -- The Perigo mine -- The Gold Dirt mine -- The Comstock -- The Colorado -- Description of the ore and veins -- Proposed development -- Examination
Weston, W. (William), 1844-1920
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Waterminer - Mine water management [PDF]

, 2011
In the Australian and New Zealand gold mining industry the use of water is an integral part of the entire mining process, from the initial extraction of the ore to its final processing. The way in which water is managed on site effects the running costs,
Tobin, Brent
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Gold Hub mine site

, 2022
Donor: Colorado Mining Association.View of Gold Hub mine and tailings pile.Caption reads: "Gold Hub Silverton.

core   +1 more source

Various legal documents regarding the Millington mine and the Millington Gold Mining and Milling Company [PDF]

, 2022
Mine report no. 786.Typescript (carbon copy)
Stanhope, Philip R.
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Quantum chemical calculation of the reactions between the side-chain active groups of coal and hydroxyl radical catalyzed by an external electric field

Earth Energy Science
The current work probes the influence of an electric field on the reactions of side-chain active groups (-CH3, -COOH, and -OH) of coal interacting with hydroxyl radical (•OH).
Yu Wang, Haitao Li, Rongyang Lou, Jiachen Wang, Minggao Yu   +4 more
doaj   +1 more source

Kimberley Mine 1883

, 1883
Gold Fields of South Africa Ltd.

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Prospecting potential evaluation based on geological factor analysis-a case study of Jiaojiacheng ore belt

Frontiers in Earth Science
Mineral forecasting is of great significance for social development. As an important aspect of geological exploration, its importance lies not only in its direct contribution to economic growth but also in how it employs precise technical methods for ...
Zhaoyang Ma, Zhaoyang Ma, Yakai Qiao, Ming Jing   +3 more
doaj   +1 more source

PCA-BP Neural Network-Based Mining Cost Forecasting Model for Underground Metal Mines: A Gold Mine Case

Applied Sciences
To achieve scientific cost forecasting, this study investigates structural changes in mining cost driven by the widespread adoption of mechanized mining, increased mining depths, and significant operational variations.
Bingshu Wu, Guoqing Li, Jie Hou, Chunchao Fan, Qizhen Wei, Jingyu Ma, Huaidong Chen   +6 more
doaj   +1 more source

Gold King Extension group, San Juan County, Colorado

, 2022
Mine report no. 1443.Includes maps and newspaper clipping.Typescript (carbon copy).Preliminary report on the Gold King Extension group of lode mines / J.H. Marks -- Prospectus: The Gold King Extension Mines Company, November, 1917 -- Approximate vertical
Noon, Bernard, Marks, John H. (John Henry), Kinney, C. N., Gold King Extension Mines Company   +3 more
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