Results 141 to 150 of about 376 (175)

Ages and geodynamic settings of Xilamulun Mo–Cu metallogenic belt in the northern part of the North China Craton

Gondwana Research, 2009
Abstract The Xilamulun belt along the northern part of the North China Craton is located in eastern segment of the Central Asian Orogenic Belt and has great economic potential for Mo–Cu mineralization. More than ten medium to large ore deposits have been discovered in this region in the recent years.
Lian-chang Zhang, Hua-ying Wu, Bo Wan, Zhi-guang Chen   +3 more
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Mineralization age and metallogenic environment of Daotuo manganese deposits in Guizhou: Evidence from Re-Os isotopes

Chinese Science Bulletin, 2017
The Neoproterozoic is a critical interval in Earth’s history, having witnessed the breakup of supercontinent Rodinia, global glaciations (or the snowball Earth), and the evolution of multicellular organisms. It is proposed that the breakup of Rodinia might have triggered the snowball Earth, while the termination of the Neoproterozoic global glaciations
HaoXiang PEI, Yong FU, Chao LI, YanHe LI, ZhengZe AN   +4 more
openaire   +1 more source

Geology and origin of Ag–Pb–Zn deposits occurring in the Ulaan-Jiawula metallogenic province, northeast Asia

Journal of Asian Earth Sciences, 2015
Abstract Located at the conjunction area of China, Mongolia and Russia in NE Asia, the Ulaan-Jiawula (also referred as UJ) region, with an area of 400,000 km 2 , is one of the most important Ag–Pb–Zn, U, Sn, W, Nb–Ta, and Au metallogenic provinces in Asia.
Feng-jun Nie, Qiang-feng Li, Chun-hua Liu, Cheng-wu Ding   +3 more
openaire   +1 more source

Two Ages of Copper Mineralization in the Mwombezhi Dome, Northwestern Zambia: Metallogenic Implications for the Central African Copperbelt

Economic Geology, 2015
Approximately 10% of copper resources in the Central African Copperbelt, the world’s largest, sediment-hosted stratiform copper province, occur in the Domes region of northwestern Zambia. The copper deposits and prospects are commonly hosted by amphibolite-facies metamorphic rocks and lie within or adjacent to several basement inliers.
Richard H. Sillitoe, José Perelló, Robert A. Creaser, John Wilton, Toby Dawborn   +4 more
openaire   +1 more source

Precise electron microprobe age determination in altered uraninite: consequences on the intrusion age and the metallogenic significance of the Kirchberg granite (Erzgebirge, Germany)

Contributions to Mineralogy and Petrology, 2003
An integral method of data evaluation for chemical dating of accessory uraninite by electron microprobe analysis and electron microscopy is proposed. The internal structure of uraninite grains, the contents of Si, Ca, and Fe, and tests for loss or gain of Pb and U are suitable criteria to decide whether or not a given crystal area was affected by ...
openaire   +1 more source

Zircon U–Pb ages and geochemistry of granitoids in the Truong Son terrane, Vietnam: Tectonic and metallogenic implications

Journal of Asian Earth Sciences, 2015
Abstract Truong Son terrane, one of the most important tectonic and metallogenic terranes in Indochina block, is composed of many volcano–plutonic complexes. Reported here is geochronological and geochemical data obtained from six different volcano–plutonic complexes.
Mei-Feng Shi, Fang-Cheng Lin, Wen-Yu Fan, Qi Deng, Feng Cong, My-Dung Tran, Hua-Ping Zhu, Hong Wang   +7 more
openaire   +1 more source

Age of the Au-Ag mineralization and its relation to the magmatism at the Dess occurrence, North Stanovaya metallogenic zone (southeastern framing of the North-Asian Craton)

Russian Journal of Pacific Geology, 2012
Mesozoic ore systems were responsible for the formation of numerous Au, Ag, Mo, and Pb occurrences and deposits in the North-Stanovaya metallogenic zone, the largest of which are the Bamskoe, Vykhodnoe, Mogotinskoe, Dess, Nakhodka, and Apsakan deposits. The age of the hydrothermal-metasomatic processes that accompanied the mineralization is 130–122 Ma,
I. V. Buchko, A. A. Sorokin, V. A. Ponomarchuk, A. V. Travin, Ir. V. Buchko   +4 more
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Structure and Age of the Fluorite-Beryl Raduga Deposit (West Sayan Mountains): Problem of Evaluation of the Metallogenic Potential of the Region

Doklady Earth Sciences, 2019
The geochronological and geochemical parameters of the Raduga muscovite–fluorite–euclase–beryl deposit, located within the Kizir–Kazyr zone of rare-metal magmatism, were determined. In contrast to other deposits and ore occurrences located in this zone and represented by alkaline granites enriched in rare-metal mineralization, the formation of the ...
D. A. Lykhin, V. V. Yarmolyuk, A. A. Vorontsov, A. V. Travin   +3 more
openaire   +1 more source

The Metallogenic Age of the Changshanhao Gold Deposit in Inner Mongolia, China

Acta Geologica Sinica - English Edition, 2014
Yi CAO, Fengjun NIE, Wei XIAO
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Basic characteristics, research progresses and prospects of Sn-Ag-base metal metallogenic system

Acta Petrologica Sinica, 2019
LI ZhenZhen, QIN KeZhang, ZHAO JunXing, LI GuangMing, SU ShiQiang   +4 more
openaire   +1 more source