Results 1 to 10 of about 28,093 (233)

Determination of Tin, Lead and Zinc in a Tin-Lead-Zinc Deposit in Xianghualing Mining Area, Hunan Province by Inductively Coupled Plasma-Optical Emission Spectrometry with Alkali Fusion

Yankuang ceshi, 2023
BACKGROUND The Xianghualing mining area in Hunan Province is an important part of the east-west tectonic-magmatic-metallogenic belt in the Nanling area.The ore-forming geological conditions in the mining area are superior, and it is famous for its many ...
XIAO Xilian, XIA Jinlong, LI Xiaodan, LU Youyue, YANG Xiaoli, YANG Hongmei   +5 more
doaj   +1 more source

Petrogenesis of the Cretaceous Intraplate Mafic Intrusions in the Eastern Tianshan Orogen, NW China

Frontiers in Earth Science, 2021
In this study, we conducted zircon U-Pb dating, and whole-rock geochemical and Sr-Nd isotope analyses on the Late Mesozoic dolerite dykes in the Bailingshan Fe deposit (Eastern Tianshan Orogen, NW China) to unravel their petrogenesis and regional ...
Weifeng Zhang, Weifeng Zhang, Xin Deng, Bing Tu, Lianhong Peng, Xinbiao Jin   +5 more
doaj   +1 more source

Geochronology and geochemistry of the Late Jurassic Wujiaping Sn deposit, Dayishan ore field, South China: Implications to the petrogenesis and Sn mineralization

Solid Earth Sciences, 2022
The Wujiaping Sn deposit is located at the northern Dayishan ore field, South China, whose ore veins are mainly hosted in the Dayishan pluton. LA–ICP–MS zircon U–Pb dating for the medium-fine grained- and medium-coarse grained-biotite monzogranite of ...
Youyue Lu, Jianfeng Li, Jingya Cao, Jianming Fu, Shunbo Cheng, Zhengwei Qin, Liyan Ma, Jingping Feng, Zunzun Zhang, Xiqing Chen   +9 more
doaj   +1 more source

Geochemistry and Petrogenesis of Carboniferous volcanic rocks, NW Marand: Evidence for interacontinental rift Magmatism) [PDF]

پترولوژی, 2020
The studied volcanic-sedimentary sequence located at the East-Azarbaijan province, north Marand and in the Central Iranian structural zone. The studied sequence composed of alternative sandstone, shale, conglomerate, limestone, felsic volcaniclastics ...
Zahra Badrzadeh, Mehraj Aghazadeh, Sahar Fathi   +2 more
doaj   +1 more source

Petrogenesis of Havre Volcano in the Kermadec Arc: 2012 Eruption of a Chemically Homogeneous Rhyolite

Frontiers in Earth Science, 2022
The 2012 Havre submarine eruption produced a 1.5 km3 bulk rock volume or 0.52 km3 dense rock equivalent volume of rhyolite emplaced as minor lava flows, a field of sunken seafloor pumice, and a volumetrically dominant pumice raft.
J. Knafelc, D. Gust, S. E. Bryan, M. Anderson, H. E. Cathey, H. E. Cathey   +5 more
doaj   +1 more source

Porphyry Copper Deposit Formation: Identifying Garnet and Amphibole Fractionation With REE Pattern Curvature Modeling

Geophysical Research Letters, 2023
Porphyry copper ore‐forming intrusions are distinguished from barren arc magmas by high oxidation state and “adakitic” high Sr/Y and La/Yb. Controversy over petrogenesis of adakites has centered on ambiguities in interpretation of their steep rare earth ...
Lucas Tatnell, Michael Anenburg, Robert Loucks   +2 more
doaj   +1 more source

Mineralogy and Geochemistry of “Laoshan Jade” from Shandong Province, China: Implications for Petrogenesis

Crystals, 2022
“Laoshan Jade” is located in the Yangkou area of the Sulu UHP metamorphic belt. This is the first time a systematic research study is performed on its conventional gemological characteristics, mineral compositions, geochemical characteristics, and ...
Xiaomin Yu, Yingxin Liu, Chuqi Cao
doaj   +1 more source

Zircon U-Pb and Lu-Hf Isotopic Dating of Magmatic Rocks in the Wunugetushan Porphyry Copper-Molybdenum Deposit, Inner Mongolia

Yankuang ceshi, 2022
BACKGROUND The Wunugetushan copper-molybdenum deposit located in the northwest of the Erguna—Hulun fault is a large porphyry copper-molybdenum deposit. Magmatic rocks are widespread in the mining area. OBJECTIVES In order to determine the emplacement age
ZHANG Xuejun, ZHANG Yaoyao, LIU Kai, HE Xiaolong, WANG Shuxun, JIA Wuhui, ZHAO Zenan   +6 more
doaj   +1 more source

Batholith recorded mesozoic multistage tectonic evolution of the South china block: A case study of the guandimiao intrusions

Frontiers in Earth Science, 2022
South China is a well-known grand felsic igneous rocks province. However, it is still controversial and not well understood whether the Mesozoic tectono-magmatic pattern is dominated by the subduction of the paleo-Pacific oceanic plate. In this study, we
Jin-Hua Qin, Fan Huang, Deng-Hong Wang
doaj   +1 more source

Geochemistry and Petrogenesis of Mata Lower Jurassic basaltic rocks, Southeast Kerman, Implication to Southern Sanandaj-Sirjan zone evolution [PDF]

پترولوژی, 2019
Lower Jurassic volcanic-sedimentary sequence in the southern end of the Sanandaj-Sirjan zone, north of Mata village (southwest Jiroft), composed of tuffaceous limestone, calcareous tuff, limestone, including felsic volcaniclastic and basaltic volcanic ...
Zahra Badrzadeh
doaj   +1 more source