Results 31 to 40 of about 1,709 (175)

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

Geochemistry of pyrite and its implications for exploration of the Jiuzhanggou gold deposit in western Henan

Dizhi lixue xuebao
Objective  Pyrite is a common auriferous mineral in gold deposits. Its mineral geochemistry not only plays a significant role in elucidating ore genesis, but also provides important information for the exploration of deposits.
SI Jiantao, BAI Desheng, ZHAO Zhiqiang, LIANG Zhen, YANG Jingnan, LIU Jianping, DING Tao, Ahmad Osama   +7 more
doaj   +1 more source

Geochemistry, Paragenesis, and Wall‐Rock Alteration of the Qatruyeh Iron Deposits, Southwest of Iran: Implications for a Hydrothermal‐Metasomatic Genetic Model

Journal of Geological Research, Volume 2014, Issue 1, 2014., 2014
The Qatruyeh iron deposits, located on the eastern border of the NW‐SE trending Sanandaj‐Sirjan metamorphic zone, southwest of Iran, are hosted by a late Proterozoic to early Paleozoic sequence dominated by metamorphosed carbonate rocks. The magnetite ores occurred as layered to massive bodies, with lesser amounts of disseminated magnetite and hematite‐
Sina Asadi, Mohammad Ali Rajabzadeh, Salvatore Gambino   +2 more
wiley   +1 more source

Precious and Base Metal Minerals in Black Sands of the Egyptian Mediterranean Coast: Mineralogical and Geochemical Attributes

Resources
This paper investigates the mineralogical and geochemical characteristics, as well as the possible sources, of gold, silver, platinum group elements (PGE), copper, and lead found in the beach sands along Egypt’s Mediterranean coast.
Abdel-Aal M. Abdel-Karim, Ahmed Gad
doaj   +1 more source

Marked Ericales diversity in late Oligocene–Early Miocene palynofloras from northern Thailand suggests stratified mountain forests

Journal of Systematics and Evolution, Volume 63, Issue 6, Page 1458-1480, November 2025.
Ericalean pollen was recovered from the Ban Pa Kha Subbasin, Li Basin, northern Thailand. Based on the ecological preferences of their modern analogs, the assemblage of dispersed ericalean pollen likely derives from more than one vegetation type and possibly from different vertical zones of mountainous areas.
Paranchai Malailkanok, Friðgeir Grímsson, Reinhard Zetter, Paul J. Grote, Thomas Denk, Wongkot Phuphumirat   +5 more
wiley   +1 more source

Active geothermal systems with entrained seawater as analogues for low-sulphidation epithermal mineralization [PDF]

, 2005
The paradigm for low-sulphidation (LS) volcanic-arc associated mineralization is the active geothermal systems located along the Taupo Volcanic Zone (e.g. Broadlands). However, this analogue is inapt where fluid salinities are consistently in excess of 3.
Darbyshire, Fiona, Kilias, Stephanos P, Naden, Jonathan   +2 more
core   +1 more source

Gold Mineralization Triggered by Contact Metamorphism at Mano Deposit in the South Kitakami Belt, Japan

Resource Geology, Volume 75, Issue 1, January/December 2025.
Genetic model of the Mano deposit. The magmatic intrusion metamorphosed the calcsilicate sedimentary rock to pyroxene hornfels. During the contact metamorphism, supercritical metamorphic fluid separated H2O, H2S and CO2 into the vapor phase, and the remaining hydrothermal fluid containing LMCEs melts transported Au to form Bi‐Te metal alloy‐enriched ...
Yusa Ito, Yasushi Watanabe, Shogo Aoki, Takuya Echigo, Yoshiaki Kon, Takumi Mimura   +5 more
wiley   +1 more source

Minerals in Afghanistan : the potential for gold [PDF]

, 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  

Estimating gold-ore mineralization potential within Topolninsk ore field (Gorny Altai) [PDF]

, 2015
Based on the results of ore and near-ore metasomatite composition analysis, the factors and indicators of gold-ore mineralization potential were proposed. Integration of the obtained data made it possible to outline magmatic, structural, and lithological
Cherkasova, Tamara Yurievna, Chernyshov, A., Korotchenko, Tatiana Valerievna, Timkin, Timothy Vasilyevich, Voroshilov, Valery Gavrilovich, Асканакова, Ольга Юрьевна   +5 more
core   +1 more source

The metallogenic evolution of the Greater Antilles [PDF]

, 2011
The Greater Antilles host some of the world’s most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium.
Lewis, J. F., López Kramer, J., Nelson, C.E., Proenza Fernández, Joaquín Antonio   +3 more
core   +7 more sources