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Early Cretaceous volcanic and subvolcanic .
Early Cretaceous volcanic rocks are widely distributed in northeast China and being extensively observed recently. However, petrogenesis and tectonic setting of these volcanic rocks are still on debate.
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CHARACTERISTICS OF VOLCANIC ROCKS IN THE .
The shoshonite province in eastern China is characterized by extensive distribution of Mesozoic (165 100 Ma) volcanic rocks consisting of shoshonite series with subordinate highK calcalkali series. The formation of the shoshonite province is the result of the combined action of three tectonic dynamic systems in the dominantly tensile stress field.
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Formation mechanisms and distribution of .
Compared with native volcanic reservoirs, weathered profile reservoirs have better reservoir performance and production, and Kelameili and Niudong gasfield is the typical representative in China. 2 There are many weathered profile reservoirs in Junggar Basin, and the volcanic rocks are widely distributed in the Carboniferous and Permian stratum, which were lifted entirely due to compression .
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Formation mechanisms and distribution of weathered ...
Basin, and the volcanic rocks are widely distributed in the Carboniferous and Permian stratum, which were lifted entirely due to compression in the late Carboniferous. The na tive volcanic reservoir is mainly pore type and microfracture type. Compared with the native volcanic reservoir, the volcanic weathered profile reservoir has experienced a longterm weathering and leaching, forming the ...
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Temporal and spatial distribution of .
There exist widely developed volcanic rocks of Dalajunshan Formation along the Awulale metallogenic belt in West Tianshan Mountains. They are volcano sedimentary rocks composed mainly of a set of rhyolite, trachyte, trachyandesite and intermediate acidic tuff as well as a small amount of basalts. In this paper, the authors used LA ICPMS zircon U Pb dating method to determine the rock ...
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Middle Neoproterozoic synrifting volcanic rocks in ...
Figure 1. (a) Neoproterozoic rift basin, Sibaoan Orogen and distribution of magmatic rocks in South China (modified after Li et al. 2002b, 2003b; Wang Li, 2003), (b) Geological map of the Guangfeng region (modified after the 1:50 000 geological map), and (c) Neoproterozoic stratigraphic column of Guangfeng region (after Li et al. 2003c). Block. In their model, the South China Block was ...
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Distribution of Partial Melt Beneath .
In 2002–2005 volcanic unrest led to renewed interest in the volcano, yet to date the volcano''s location on the China/Democratic People''s Republic of Korea border has limited study of the whole volcanic system. In this unique collaboration, we use data from both China and Democratic People''s Republic of Korea to image the crustal structure beneath the volcano. We show that the top of a magma ...
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PETROGENESIS OF LATE MESOZOIC GRANITIC .
The spatial distribution of the different type granitic volcanicintrusive complexes displays a clear regularity. In general, the Itype granitic volcanicintrusive complexes distribute mainly along the coastal area of SE China, whereas the Stype occurred predominantly in inland to the west of the Wuyi Mountain.
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Formation mechanisms and distribution of .
The paper is a report dealing with the study of volcanic weathered oil/gas reservoirs in China. This study aims to characterize weathered volcanic rocks by means of core observation, petrography, exp...
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Characteristics of Volcanic Rocks in the .
Abstract The shoshonite province in eastern China is characterized by extensive distribution (ca. 80000 km 2) of Late Jurassic–Early Cretaceous (165–100 Ma) shoshonite series with subordinate high–K calc–alkali series. It was formed in a dominantly tensile stress field.
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CHARACTERISTICS OF VOLCANIC ROCKS IN THE .
The shoshonite province in eastern China is characterized by extensive distribution of Mesozoic (165 100 Ma) volcanic rocks consisting of shoshonite series with subordinate highK calcalkali series.
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Gravity and magnetic investigation on the .
Gravity and magnetic investigation on the distribution of volcanic rocks in the Qinggelidi area, northeastern Junggar Basin (northwest China) Article in Geophysical Prospecting 60(3):539554 ...
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Minerals | Free FullText | Genesis of Volcanic .
Shanghang Basin volcanic rocks are spatially and temporally related to a series of adjacent porphyryepithermal Cu–Au deposits, and they can be used as a window to study the related deposits.
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Volcanic rocks distribution and basement structure in western–central Junggar Basin revealed by gravitational and magnetic data . Yaoming Zhou. State Key Laboratory for Mineral Deposits Research (Nanjing University), School of Earth Sciences and Engineering, Nanjing University, Nanjing, China. Research Center of Natural Resource and Ecological Environment of Xinjiang, Urumqi, China. .
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Formation and distribution of volcanic .
· Fig. 1 Distribution of volcanic rocks in hydrocarbon bearing basins of China (rearranged according to the geologic maps by Shang Xiangru [2] ) effectively with the source rock. The reservoir formation conditions and main controlling factors are more complex, and there is scope for further study. For the development characteristics of volcanic rocks and their distribution pattern, especially ...
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Cenozoic Basaltic Rocks in Eastern China | .
The most recent studies of trace element distributions and radiogenic (Sr, Nd and Pb) and stable (O) isotope compositions have revealed that continental basalts of eastern China are highly heterogeneous, and that distinct mantle source regions must have been involved in the generation of these magmas (Zhou and Armstrong, 1982; Zhou and Carlson, 1982; Liu et al., 1983; Zhu et al., 1983; Peng et ...
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Distribution of igneous rocks in China revealed by ...
· Volcanic events were frequent during all of the geological periods in China, and the lithologies were strictly constrained by the tectonic setting; thus, the distribution of volcanic rocks shows clear regularity. For example, the volcanism in Northwest China was intense during the Paleozoic, a large quantity of marine or marineterrestrial volcanic rocks were produced with a main strike of .
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The Formation Mechanism and Distribution of .
Volcanic hydrocarbon reservoirs are distributed widely in sedimentary basins in China. Volcanic rocks have changed from "forbidden area" to "target area" in exploration.
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Volcanic Reservoirs in Petroleum Exploration .
Although volcanic rock cannot generate hydrocarbons, it can serve as a reservoir for hydrocarbons when conditions permit. This book explains the differences between volcanic reservoirs and other major reservoir types, and describes effective methods for examining volcanic distribution and predicting volcanic reservoirs, providing a framework for systematic studies throughout the world.
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ABSTRACT: Volcanic Rocks Distribution and .
Volcanic Rocks Distribution and Exploration Potential in Ordos Basin, China. Jianrong, Gao; Wanglin, Xu; Yanru, Guo Research Institute of Petroleum Exploration Development Petrochina, Petrochina, Beijing, China. The Ordos Basin is the most important base rich in energy and minerals in western China, by the end of 2011, 28 Mesozoic oil fields have been founded in the south of the basin and 9 ...
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Genesis of Volcanic Rocks in the Zijinshan Ore District ...
minerals Article Genesis of Volcanic Rocks in the Zijinshan Ore District, SE China: Implications for PorphyryEpithermal Mineralization ZhengZheng Feng 1,2, ZhongJie Bai 1,*, Hong Zhong 1,2, WeiGuang Zhu 1 and ShiJi Zheng 1 1 State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; .
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(PDF) Volcanic Rocks Distribution and .
PDF | On Sep 19, 2012, Gao Jianrong and others published Volcanic Rocks Distribution and Exploration Potential in Ordos Basin, China | Find, read and cite all .
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Distribution of hydrocarbon traps in volcanic .
· Distribution of hydrocarbon traps in volcanic rocks and optimization for selecting exploration prospects and targets in Junggar Basin: Case study in LudongWucaiwan area, NW China Yang Hui*, Wen Baihong, Zhang Yan, Zhang Guangya, Liu Zhizhou, Wu Fengcheng, Wei Yanzhao, Dai Xiaofeng, Hu Qinghui PetroChina Research Institute of Petroleum Exploration Development, Beijing 100083, China .
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Formation and distribution of volcanic .
Volcanic hydrocarbon exploration in China has experienced three phases: accidental discovery, local prospecting, and allround exploration. There are mainly CarboniferousPermian,...
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