Results 61 to 70 of about 86,925 (244)

ORE MINERALOGY OF SOKHATINY GOLD DEPOSIT (NORTHEAST ASIA, RUSSIA)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2022
The relevance of the study is caused by the need to expand the mineral resource base of operating gold mining enterprises in Eastern Yakutia and the Magadan region. The main aim: to study the material composition of the ores of the Sokhatiny gold ore deposit and to establish the sequence of mineral formation.
Timofey V. Timkin, Valery G. Voroshilov, Maria V. Yurkova, Mansour Ziaii   +3 more
openaire   +1 more source

Ore Features and Gold Occurrence of the Manlonggou Gold Deposit, Southeast Yunnan Province, China

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The Yunnan-Guizhou-Guangxi “Golden Triangle” is one of the famous Carlin-type gold deposits in China and even in the world. Manlonggou gold deposit is a newly discovered gold deposit in this area. The host rocks are mainly lithic quartz sandstone, siltstone and silty mudstone above Caledonian unconformity.
Wufu Qi, Xianfeng Cheng, Qianrui Huang, Yu Liu, Shirong Ran, Yanqiang Zhang   +5 more
openaire   +1 more source

The importance of mineralogical knowledge in the sustainability of artisanal gold mining: a mid-south Peru case [PDF]

, 2019
Mineralogy and gold processing techniques from several mining areas of the Nazca-Ocoña gold belt, Mid-South Peru, were investigated to assess the efficiency of gold extraction methods in relation to their mineralogy.
Alfonso Abella, María Pura, Anticoi Sudzuki, Hernán Francisco, Bascompta Massanes, Marc, García-Vallès, Maite, Henao, Laura, Palacios Ubach, Silvia, Yubero de Mateo, Maria Teresa, Yáñez González, Juan Alberto   +7 more
core   +2 more sources

The impacts of biological invasions

Biological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

Paleo‐Pacific Plate Subduction and Basement Mobilization Triggered Large‐Scale Formation of Mesozoic Gold Deposits in the Northern Margin of the North China Craton

Geochemistry, Geophysics, Geosystems, 2023
The northern margin of the North China Craton (NNCC) hosts Mesozoic gold deposits of significant economic importance. The metal sources of these gold systems have long been debated with mainly magmatic‐hydrothermal versus metamorphic fluid models ...
Tingting Xiao, Deyou Sun, Bernd Lehmann, Zhendong Tian, Lingjian Gao, Duo Zhang, Changzhou Deng, Anbo Luo, Yang Xu, Runsheng Yin   +9 more
doaj   +1 more source

Origin and Characteristics of the Shwetagun Deposit, Modi Taung-Nankwe Gold District and the Kunzeik and Zibyaung Deposits, Kyaikhto Gold District in Mergui Belt, Myanmar: Implications for Fluid Source and Orogenic Gold Mineralization

Frontiers in Earth Science, 2021
The Mergui Belt of Myanmar is endowed with several important orogenic gold deposits, which have economic significance and exploration potential. The present research is focused on two gold districts, Modi Taung-Nankwe and Kyaikhto in the Mergui Belt ...
Myo Kyaw Hlaing, Myo Kyaw Hlaing, Kotaro Yonezu, Khin Zaw, Aung Zaw Myint, May Thwe Aye, Koichiro Watanabe   +6 more
doaj   +1 more source

Calculation of variation and ore-bearing coefficients in the Plavica epithermal polymetallic deposit, Eastern Macedonia [PDF]

, 2015
Latest calculations of the ore-bearing coefficient in the Plavica deposit for gold and copper displayed values of 0.441 for gold and 0719 for copper, which means that within the deposit only 55.9% and 28.2%, respectively, of mass is not mineralized ...
Serafimovski, Todor, Tasev, Goran, Zlatkov, Goce   +2 more
core  

Geological and geotechnical challenges on the Great Dyke of Zimbabwe and their impact on hardrock pillar design

Deep Underground Science and Engineering, EarlyView.
The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza, Hendrik Grobler, Moshood Onifade, Manoj Khandelwal   +3 more
wiley   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

VLADIMIRSKOE DEPOSIT (EASTERN SAYAN): AGE OF DYKE COMPLEXES AND LOCALIZATION FEATURES OF GOLD MINERALIZATION

Геодинамика и тектонофизика, 2023
The Vladimirskoe deposit is one of the largest gold ore deposits in the southeastern part of the Eastern Sayan. This work is devoted to the localization of mineralized zones and the determination of the formation time of gold mineralization.The ...
E. V. Airiyants, B. T. Nharara, O. N. Kiseleva, D. K. Belyanin, P. A. Roschektaev, A. V. Travin, S. M. Zhmodik   +6 more
doaj   +1 more source