Request PDF Geochemistry and geochronology of zircons from granite hosted gold mineralization in the Jiaodong Peninsula North China Implications for ore genesis Large scale quart vein and
formation from the alkaline granite to the pegmatite and finally albite aplite The dark minerals and the accessory minerals are the important part of the is the domi nant mafic phase with different occurrences in each part of the granite In the bottom part it is anhedral in the intergranular space of quartz and alkali
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granite aplite intrusion within the Neoproterozoic Jiuling batholith south China A fluid rich and quenching ore forming process and the delta Li 7 values of the Li Mus granite and aplite are / parts per thousand and / parts
Geochemistry of Pyrite from the Gangcha Gold Deposit West Qinling Orogen China Implications for Ore Genesis Xiao NIE Xiao NIE School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China The Gold of CAPF Lhasa Tibet 850000 China Search for more papers by this author Xiao NIE Xiao NIE School of
The Qi191 Au deposit is a newly discovered granite hosted Au deposit in the Qiyugou Au orefield located in the southern margin of the North China Craton NCC Gold ore bodies are hosted by both the Qi191 hornblende monzogranite and the Taihua Complex and are composed of disseminations and sparse veins K feldspar quartz sericite and sericite chlorite
The Mesozoic gold mineralization in China includes some of the world class deposits and have been the focus of several investigations related to genetic classification tectonic correlations and source of metals Yang and Santosh 2019 Li and Santosh 2017 Deng and Wang 2016 Groves et al 2016 and references therein Among these the
Granite related ore deposits an introduction A N SIAL1 JORGE S BETTENCOURT2 CRISTINA P DE CAMPOS3 & VALDEREZ P FERREIRA1 1Federal University of Pernambuco Dept of Geology NEG LABISE 7852 Cidade Universitaria 50670 000 Recife PE Brazil 2Institute of Geosciences University of Sa˜o Paulo Rua do Lago
The Daxiyingzi gold deposit is located in the Chifeng Chaoyang gold ore concentration area toward the northern margin of the North China Craton The ore bodies of the Daxiyingzi gold deposit are mainly hosted in the Manitu volcanic rocks which are intruded on by the Mesozoic granite porphyry The ore formation consists of four main stages
It is dominated by volcanic and volcaniclastic rocks of the Yanshanian magmatism in the volcanic eruption zone of eastern Fujian Province belongs to the eastern part of the Zhenghe Dabu Fault The Shuangqishan and Xiaoban gold deposits occur in the central part of the Zhouning Hua an Fault uplift zone
Gold deposits in China have typically been classified according to host rock lithologies granite hosted volcanic hosted and sedimentary hosted gold deposits; Tu 1990 Nie 1997 and genetic types of ore forming fluids magmatic hydrothermal metamorphic hydrothermal and hydrothermal sedimentary gold deposits; Zhong et al 1993
Magnetite as an indicator of granite fertility and gold mineralization A case study from the Xiaoqinling gold province North China Craton 2019 The Huashan pluton emplaced within the Taihua complex along the western part of the Xiaoqinling gold district is a complex granitic batholith composed of amphibole monzonite at the centre that
The Jiaodong gold province being the largest gold producer in China is located in the southeastern part of the North China Craton NCC [1 2 3 4] with gold reserves above 3000 t [] The gold deposits in Jiaodong Province are hosted predominantly by Late Mesozoic granitoids [6 7 8 9 10] and are controlled by northeast to north by northeast NE NNE trending faults
The Jiapigou gold mineralization hosted in a Neoarchean granite greenstone belt in the southern Jilin Province at the easternmost part of the northern margin of the North China Craton NCC is
The Qiyugou Au deposit located in the Xiong ershan ore cluster of central China consists of breccia pipe hosted Au ore bodies >60 t Au and newly discovered porphyry ore body 8 t Au
In this paper we conduct a detailed geological field investigation of the Nanyangtian tungsten deposit and present new 40 Ar 39 Ar ages for biotite intergrowth with scheelite and zircon LA ICP MS U Pb dating for porphyritic granite dyke which is not contact with ore bodies in the mine pit This study provides precise biotite 40 Ar 39 Ar age and zircon
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The metallogenic process and mechanism of the Jiaodong gold deposit under the thermal upwelling extensional tectonic system are as follows in the Jurassic eastern China was in the background of the tectonic transition from the collision between the NCC and the Yangtze Block YB to the Pacific Plate subducted under the Eurasian plate
Abstract An analysis of trace elements and isotopic geochemistry suggest that the ore forming materials of gold deposits in the Jiaodong granite greenstone belt have multiple sources especially the mantle source Seismic wave magnetic and gravity fields show that the crust mantle structure and its coupling mechanism are the fundamental dynamic causes for the
770 Ore controlling Strain and Stress Fields in the Shangzhuang Gold Deposit in Shandong Province Deng et al Fig geological map in the northwestern part of the Jiaodong gold province China I Mesozoic Cenozoic; Parot ozoic; 3 Upper Archaeozoic; 4 Aishan type granite; 5 Guojialing type granite; 6 Luanjiahe type
The Nanling Range in southern China is well known for its hosted metallogenic districts Granite bodies of Yanshanian Jurassic Cretaceous age make up 30% of the exposed area >64 × 10 3 km 2; Zhou et al 2006 and they are commonly associated with extensive Sn W Nb Ta mineralization Hua et al 2003 Xu and Zhu 1988 The
