Results 1 to 10 of about 940 (185)
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 +5 more
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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 +5 more
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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 +9 more
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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 +2 more
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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 +5 more
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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 +2 more
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Brazilian Journal of Geology, 2021 Two porphyritic granitoids (Huaco and Sanagasta) in the Velasco district of the Pampeana Pegmatite Province in Northwestern Argentina are recognized. They are considered the fertile granites of the beryl-bearing pegmatites and can be described as post ...
Fernando Guillermo Sardi +2 more
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Geophysical Monograph Series, Page 169-190., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi +9 more
wiley +1 more source
Petrogenesis of the Platinum-Group Minerals [PDF]
Reviews in Mineralogy and Geochemistry, 2015 The platinum-group minerals (PGM) are a diverse group of minerals that concentrate the platinum-group elements (PGE; Os, Ir, Ru, Rh, Pt, and Pd). At the time of writing, the International Mineralogical Association database includes 135 named discrete PGM phases.
O’Driscoll, Brian +1 more
openaire +5 more sources
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
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