Results 41 to 50 of about 2,099 (197)

Large and super-large orogenic golden deposits: Geodynamics, structure, genetic consequences

Литосфера, 2020
Research subject. Large and super-large orogenic gold deposits are widely distributed across all continents. This work was aimed at characterizing 24 giant facilities with reserves and resources of more than 500 tons of metal.Materials and methods.
Yu. S. Savchuk, A. V. Volkov
doaj   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

Geological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

Ring-shape and linear gold mining districts of zimbabwe: estimation of residual gold resources

Известия высших учебных заведений: Геология и разведка
Background. Despite the long history of exploitation and study of Zimbabwe’s geological potential, the ranks of gold ore formations at the level of regions and fields remain unclear. Assessment of the residual primary gold deposits in Zimbabwe appears an
P. A. Ignatov, S. A. Malyutin, A. A. Ivanov, A. S. Desyatkin, M. M. Lanchak   +4 more
doaj   +1 more source

Mustard Gold of the Gaching Ore Deposit (Maletoyvayam Ore Field, Kamchatka, Russia) [PDF]

Minerals, 2019
The Gaching high-sulfidation (HS) epithermal Au–Ag deposits, part of the Maletoyvayam ore field, which is located in the volcanic belts of the Kamchatka Peninsula (Russia). The main ore components are native gold, tellurides, selenides, and sulphoselenotellurides of Au and oxidation products of Au-tellurides.
Nadezhda D. Tolstykh, Galina A. Palyanova, Ol’ga V. Bobrova, Evgeny G. Sidorov   +3 more
openaire   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 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

Mind the Gap: Predictors of Osteoporosis Treatment Following Fragility Fracture in Parkinsonism

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Fracture risk is increased in Parkinson's yet this risk is often not addressed. Objectives Our objective was to study the extent to which osteoporosis was treated, and predictors of treatment in a large representative cohort with parkinsonism.
Katie C. Naylor, Emily J. Henderson, Emma Tenison   +2 more
wiley   +1 more source

Sustainable Metal Recovery From E‐Waste: Exploring Greener Leachates in Hydrometallurgical Processes

MetalMat, EarlyView.
Recycling of electronic waste to synthesize valuable metals using green leachate. ABSTRACT The accumulation of electronic waste (e‐waste) poses environmental hazards and leads to the loss of valuable metals such as gold, silver, copper, and rare earth elements.
Shassatha Paul Saikat, Nazim Uddin, Md. Kawsar, Samina Ahmed, Md. Sahadat Hossain   +4 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