Results 41 to 50 of about 2,093,906 (357)

Gold Deposits in Chile [PDF]

open access: yesAndean Geology, 2021
A review of gold and gold bearing base metals deposits in Chile, indicate the existence of at least six different type of ore deposits, most largely formed during the Cenozoic with predominance in the Miocene. Mesozoic deposits are common but less relevant regarding their size and gold content. These hydrothermal ore deposits are genetically associated
openaire   +1 more source

Non-seismic geophysical prospecting model of Beiya gold mine in Western Yunnan Province [PDF]

open access: yes, 2017
According to the basic rules and characteristics of the gold-polymetallic deposits of Beiya gold mine area in terms of mineralization and ore controlling, it is concluded that skarn deposit is the main ore deposit type in this area and the geological ...
Guo, Jing   +4 more
core   +1 more source

Qualitative characterization of healthcare wastes [PDF]

open access: yes, 2020
The biological hazard inherent in the clinical wastes should be considered during the management and treatment process as well as the disposal into the environment.
A Graikos   +22 more
core   +1 more source

Trace Element Analysis of Pyrite from the Zhengchong Gold Deposit, Northeast Hunan Province, China: Implications for the Ore-Forming Process

open access: yesMinerals, 2018
The Zhengchong gold deposit is located in the central segment of the Jiangnan Orogen in northeastern Hunan Province, South China. The host rocks of this deposit are the Neoproterozoic slates of the Lengjiaxi Group and granodiorite.
Yong-jun Shao   +3 more
semanticscholar   +1 more source

Characterisation of gold from Fiji [PDF]

open access: yes, 1995
This is a study of the variation in chemistry and inclusion mineralogy of bedrock and placer gold from Fiji. It forms part of a large project, undertaking gold characterisation from a wide range of geological environments in Ecuador, Zimbabwe ...
Henney, P.J., Naden, Jon
core  

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Substantiation of field of application of combined (traditional and physicaland-chemical) geotechnologies for the development of gravel and secondary gold deposits

open access: yesE3S Web of Conferences, 2018
Problems of accumulation of technogenic tailings dumps and as a result of sluicing of gold sands of gravel deposits are considered in article. Additional recovery of fine and dispersed gold from a mineral mass of such technogenic formations can be ...
Sekisov Artur   +3 more
doaj   +1 more source

3D Quantitative Analysis of Xiadian Gold Deposit, Jiaodong Peninsula, China

open access: yesChemical Engineering Transactions, 2017
Focusing on Xiadian gold deposit in Jiaodong Peninsula, this paper examines the metallogenic information of faults and alteration zone by 3D geological modeling and 3D spatial analysis.
Mijun Wang   +3 more
doaj   +1 more source

Minerals in Afghanistan : the potential for gold [PDF]

open access: yes, 2006
Gold has been worked in Afghanistan for centuries from many areas including Takhar province in the north and from Ghazni, Zabul, and Kandahar provinces in the south-west of the country.
Benham, Antony John, Coats, Stan
core  

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