Article
Geosciences, Multidisciplinary
Jinglian Yuan, Yongjiang Liu, Weimin Li, Liwei Jiang, Sihua Yuan, Sanzhong Li
Summary: This study used 745 detrital zircon LA-ICP-MS U-Pb ages from the Heishuigou and Mangya sections in the western Qaidam Basin to trace the provenances of Jurassic sediments and to further constrain the tectonic evolution of the Qaidam Basin. The results indicate that the South Altyn Tagh Range and the South Qilian Range were the main sources of sediment during the early to middle Jurassic in the western Qaidam Basin.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Weiwei Xue, Xiumian Hu, Eduardo Garzanti, Anlin Ma, Wen Lai, Chao Li
Summary: Detrital zircon data from the Tibetan Plateau were analyzed using a new method that identified distinct detrital-zircon age facies in different geological domains. The study successfully distinguished source regions and provided insights into the provenance of sedimentary units in diverse geological terranes. The combination of detrital-zircon age facies and multidimensional scaling methods proved to be an effective approach for provenance analysis.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Pascal Asmussen, Brett Pidgeon, Oliver Gaede, David Gust, Thomas Flottmann
Summary: The Surat Basin is a shallow intracratonic basin that developed in response to the Gondwanan breakup and is significant for Coal Seam Gas production. The identification of the boundary between the Walloon Coal Measures and the overlying Springbok Sandstone is crucial for the stratigraphic framework and groundwater flow units. Sediment provenance analysis using detrital zircon U-Pb geochronology facilitates the identification of basin dynamics within the Surat Basin.
Article
Geology
Bo Hui, Yunpeng Dong, Franz Neubauer, Shuai He, Jan Varga
Summary: The Neoproterozoic Zhoutan Group in South China provides an important record of sedimentary system, with new detrital zircon U-Pb dating revealing its depositional age, provenance mainly from the Jiangnan Orogen, and metamorphic history during the Silurian period. These findings suggest its tectonic affinity between the Yangtze and Cathaysia Blocks with a potential boundary north of its current location.
INTERNATIONAL GEOLOGY REVIEW
(2021)
Article
Geosciences, Multidisciplinary
P. Asmussen, D. A. Gust, S. E. Bryan, D. Purdy, D. Murphy, C. M. Allen
Summary: The Devonian period witnessed the stabilization of the Thomson Orogen and the emergence of the New England Orogen in the Australian Tasmanides. The Adavale and Darling basins, the two largest cover basins, were studied to investigate their connection and provenance. The results indicate that they were not connected during the Devonian.
Article
Geosciences, Multidisciplinary
Xiaohui Liu, Rui Gao, Xiaoyu Guo, Lin Ding
Summary: This study investigates the uplift history of the central Tibetan plateau through the analysis of zircon grains in the Lunpola basin sediments. The results reveal that the central Tibetan plateau experienced crustal thickening and surface elevation increase from the Paleogene to the Oligocene, which may be associated with convective removal of a thickened Tibetan lithosphere.
Article
Geochemistry & Geophysics
Yanchen Pan, Mengyu Xu, Kai Liu, Meng Wang
Summary: Continental arc in NE China is characterized by alternating magmatic flare-ups and lulls. Through detrital zircon U-Pb dating and trace elements analyses, this study reveals the tectonic controls on these flare-ups and provides insights into the regional tectono-magmatic evolution. The occurrence of two episodes of crustal thickening and westward migration of magmatism suggests that the Permian flare-up was caused by shallowing subduction, while the Middle Triassic lull resulted from the expulsion of mantle wedge by the flat slab and thickened crust. The westward subduction of the back-arc oceanic plate before the lull gradually led to the Jurassic magmatic flare-up and crustal thickening.
Article
Geosciences, Multidisciplinary
Claudio Andrade, Kasia Sobczak, Paulo Vasconcelos, Heinz-Gerd Holl, Suzanne Hurter, Charlotte Allen
Summary: New U-Pb detrital zircon ages from sandstones reveal the relationship and compositional differences between the Walloon Coal Measures and Springbok Sandstone in the Surat Basin, providing important implications for predicting communication between coal measures and sandstone aquifers.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geography, Physical
Yetong Wang, Guoqiang Sun, Shangshang Bo, Shuang Fu, David Cruset, Juan Diego Martin-Martin, Hui Guo, Irene Cantarero, Vinyet Baques, Guojun Chen, Shuncun Zhang, Anna Trave
Summary: This paper investigates the provenance of the Cenozoic sediments filling the Qaidam Basin by analyzing petrology, major elements, trace elements, rare earth elements, and Zircon U-Pb dating. The results reveal the complex interaction between orogenic belts and surrounding sedimentary basins and the role of plate collision in the basin-mountain coupling process.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geosciences, Multidisciplinary
Chengfu Lyu, Chao Li, Guojun Chen, Gongcheng Zhang, Ming Ma, Ying Zhang, Zhaotong Sun, Qianshan Zhou
Summary: The study utilized zircon U-Pb ages to investigate the provenance of Upper Oligocene to Upper Miocene sandstones in the western Qiongdongnan Basin. It was found that the sediments of the Lingshui Formation may have originated from the Red River system, while the Sanya Formation was mainly from Hainan Island and the Huangliu Formation's provenance was the Red River system.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
A. Baesso, M. V. D. Remus, B. R. B. Pereira, A. R. Alkmim, C. C. Lana, M. L. Vignol-Lelarge, C. C. Porcher
Summary: The U-Pb and Lu-Hf data from detrital zircon in sedimentary rocks of the Potiguar Basin in northeast Brazil revealed main age peaks in the Paleoproterozoic and Neoproterozoic periods, matching the ages of rocks from the adjacent basement. Additionally, the Hf values of zircon grains showed distinct characteristics with different time periods, indicating the evolution of granitoid generation in the adjacent basement rocks.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geology
Qin Ye, Hanjie Wen, Chongguang Luo, Yu Chen, Wenxiu Yu, Yi Cui
Summary: A lithium-rich claystone with great potential for lithium exploration has been discovered in Central Yunnan, China. However, the origin of the claystone is still being debated. Through various analyses, it was found that the age distribution and source of the claystone differ. It is suggested that the weathering products from the Weining Formation may have provided the primary material for the Daoshitou Formation claystone.
ORE GEOLOGY REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Jianzhou Tang, Zhicheng Zhang, Jinzhuang Xue, Bo Liu, Yan Chen, Shaohua Zhang
Summary: The study reveals Permo-Carboniferous provenance shifts at the northern margin of the North China Craton, with sediment contributions from the Southern Orogenic Belt shifting to the North China Craton during the Permian-Carboniferous transition.
Article
Geosciences, Multidisciplinary
Qiaofan Hu, Ya Qin, Zuohai Feng, Lei Wan, Quanli Xing, Jie Wu, Yunfeng Xue
Summary: The U-Pb dating and Hf isotopic study of detrital zircons in the Nanhua System in Longsheng, northern Guangxi, revealed the depositional age, provenance, and early crustal evolution stages of South China. The research showed that different formations within the Nanhua System contain detrital zircons from Neoproterozoic magmatic rocks, indicating four stages of crustal growth in the study area.
GEOLOGICAL JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Fengyu Sun, Gaoshe Cao
Summary: The origin of bauxite in the bauxite and clay deposits of Western Henan has attracted attention. X-ray diffraction and detrital zircon U-Pb dating analysis revealed that the bauxite mainly originated from the North Qinling Orogenic Belt's Caledonian intermediate-acidic granitic rocks, with possible contributions from metamorphic rocks within the same orogenic belt.
GEOLOGICAL JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Hikaru Sawada, Yusuke Sawaki, Shuhei Sakata, Akira Ishikawa, Brian Muteta, Yukio Isozaki, Shigenori Maruyama
Summary: This study used in-situ U-Pb dating and Re-Os isotopic analysis to reveal the evolution of the Shurugwi greenstone belt, indicating that Wanderer and Mont d'Or formations were deposited around 3.0-3.01 billion years ago, while the SGB was formed around 3.0-3.01 billion years ago and was tectonically emplaced over the 3.01 billion years old orthogneiss.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Tetsuji Onoue, Katsuhito Soda, Yukio Isozaki
Summary: The study investigates the geochemical characteristics of late Permian seafloor rocks, revealing the evolution of oceanic anoxia that occurred before the end-Permian mass extinction event. The appearance of euxinic conditions with hydrogen sulfide may be linked to intensified continental weathering and temperature rise.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Paleontology
Sena Kono, Yukio Isozaki, Tomohiko Sato, Moriaki Yasuhara, Wei Liu, Xing-Liang Zhang
Summary: Stratigraphic analysis of small shelly fossils (SSFs) in the lower Cambrian Zhongyicun Member in the Chengjiang area of Yunnan, China reveals unique SSFs and suggests the presence of arthropod body fossils in the Fortunian, earlier than previously believed.
Article
Geosciences, Multidisciplinary
Masafumi Saitoh, Yukio Isozaki
Summary: The study investigates the impact of methane release associated with the Siberian Traps volcanism during the end-Permian extinction on the global methane cycle, and analyzes the carbon isotopic composition variations at Chaotian, South China. The research suggests that changes in marine carbon isotopic composition may be influenced by factors such as primary productivity collapse and volcanic activity.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Victor P. Nechaev, Evgene Sklyarov, Yukio Isozaki, Nikolay N. Kruk, Alexey Travin, Yukiyasu Tsutsumi, Eugenia Nechaeva
Summary: The study in the Sergeevka belt in coastal South Primorye, Far East Russia, revealed the presence of more than 30 mafic dykes, which are divided into two distinct age/geochemistry suites showing different origins and affected by a transition in mantle source type.
Editorial Material
Geosciences, Multidisciplinary
Robert A. Gastaldo, Yukio Isozaki, Evelyn Kustatscher, Robert Reisz, ShuZhong Shen
FRONTIERS IN EARTH SCIENCE
(2021)
Editorial Material
Paleontology
Yukio Isozaki
PALEONTOLOGICAL RESEARCH
(2023)
Article
Paleontology
Yukio Isozaki
Summary: This article reviews the current status of research on Paleozoic mass extinctions, highlighting the categorization of extinction causes and the exploration of non-bolide extraterrestrial causes. Recent studies suggest that extraterrestrial processes, such as supernova explosions and migration of dark clouds, may have played a role in the extinctions. These findings provide new insights and explanations for our understanding of the Paleozoic mass extinctions.
PALEONTOLOGICAL RESEARCH
(2023)
Article
Geology
Juliana Ferreira Godot Souza, Yukio Isozaki, Yukiyasu Tsutsumi, Renata da Silva Schmitt, Silvia Regina de Medeiros, Cicera Neysi de Almeida, Bruno Cesar Araujo, Pamela Richetti, Evania Alves da Silva, Aristoteles de Morais Rios Netto
Summary: This study presents U-Pb dating of detrital zircons from sandstones of the Araripe basin in NE Brazil, providing insights into the Mesozoic paleogeography. The findings suggest significant changes in provenance during the Later Jurassic to mid-Cretaceous, reflecting the rapid evolution of paleogeographic scenarios in northwest Gondwana. An alternative model for the paleogeography of northwest Gondwana is proposed, explaining the occurrence of Tethyan fauna in the Araripe Basin.
SEDIMENTARY GEOLOGY
(2022)
Article
Geography, Physical
Satoshi Yoshida, Yukio Isozaki, Tomohito Nakano, Yukiyasu Tsutsumi
Summary: This study measured the Uranium-Pb ages of detrital zircons from sandstone samples collected in Nagasaki and Nishisonogi Peninsula, SW Japan. The results showed that the depositional ages of the sandstones ranged from Late Cretaceous to Eocene. The main provenances of the sandstones were identified to be the Ryoke/San-yo and San-in granite belts in SW Japan.
JOURNAL OF GEOGRAPHY-CHIGAKU ZASSHI
(2022)
Article
Geosciences, Multidisciplinary
Yukio Isozaki, Yusuke Sawaki, Hideki Iwano, Takafumi Hirata, Keitaro Kunugiza
Summary: This study analyzes the geochemistry and U-Pb age of zircons in the large granitoid boulders in the Jinzu Group in order to identify the origin of the Hida belt in central Japan. The results suggest that these boulders have typical A-type granite geochemistry and a Late Triassic age of approximately 220 Ma. The boulders are more likely to originate from the Hida belt rather than the eastern Songliao block in China, indicating the past occurrence of A-type granite in the Hida belt.
Article
Geosciences, Multidisciplinary
Masafumi Saitoh, Manabu Nishizawa, Kazumi Ozaki, Masayuki Ikeda, Yuichiro Ueno, Ken Takai, Yukio Isozaki
Summary: The Capitanian stage is a peculiar stage characterized by marine anoxia and a large extinction. Previous studies have confirmed the occurrence of marine anoxia at least locally in the Capitanian, but the spatial extent and duration of anoxia in the superocean Panthalassa during this stage have been poorly understood. This study provides new insights into the global nitrogen cycle and redox conditions, showing that the nitrogen source was substantially enriched in δ15N via denitrification within subsurface oxygen-deficient zones. Numerical modeling further reveals that reducing water masses prevailed at intermediate water depths in the superocean, contributing to the shelf extinction.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Masafumi Saitoh, Yuichiro Ueno, Yukio Isozaki, Naohiro Yoshida
Summary: Previous research on multiple sulfur isotopes in sedimentary pyrite at the end-Permian suggests a mixing of sulfur from two different sources, with noticeable sulfate reduction in deep waters. This challenges the traditional shoaling model and infers substantial variations in hydrogen sulfide concentration and upwelling rate during the Permian-Triassic transition.
Article
Geography, Physical
Yuto Ishizaka, Yukio Isozaki, Yukiyasu Tsutsumi
Summary: By measuring the U-Pb ages of detrital zircons in Cretaceous and Paleogene fore-arc sandstones of the Yezo Group in western Hokkaido, it was found that there was a significant transition in tectono-sedimentary history from Early Cretaceous dominance to mid- to Late Cretaceous dominance. This transition suggests a significant renewal of the surface crust in the provenance during the Albian. The coeval turnover in zircon age spectra of fore-arc sandstones along the Cretaceous East Asian margin implies a ubiquitous development of fore-arc basins and their provenances over more than 1,500 km before the Miocene opening of the Japan Sea.
JOURNAL OF GEOGRAPHY-CHIGAKU ZASSHI
(2021)
Article
Geography, Physical
Sena Kono, Yukio Isozaki, Tomohiko Sato, Xingliang Zhang, Wei Liu
Summary: The detailed lithostratigraphy of the Lower Cambrian in South China was analyzed at the Xiaolantian section in the Chengjiang area, Yunnan, revealing six distinct lithostratigraphic units and one particular terrigenous elastic unit in the middle. These beds were found to have been deposited in shallow marine settings in the Kangdian rift-related basin in western South China. The study also highlighted a significant unit composed of terrigenous elastics in the middle of the Zhongyicun Member, serving as a key bed for lithostratigraphical correlation within the basin.
JOURNAL OF GEOGRAPHY-CHIGAKU ZASSHI
(2021)
Review
Geosciences, Multidisciplinary
Fuquan Yang, Xinxia Geng, Zhixin Zhang, Guoren Liu, Hanqing Zhang
Summary: Northern Xinjiang in China is an important part of the Central Asian Orogenic Belt, characterized by multiple episodes and types of mineralization. Cu and Au deposits are mostly found in Altay, Junggar, and Tianshan, with minor occurrences in Beishan. The most common types of Cu-Au deposits are volcanogenic and porphyry deposits. The formation of Cu-Au deposits can be divided into five mineralization episodes, with the Devonian and Carboniferous being the main periods. These deposits developed in various tectonic settings, including island arc, continental arc, collision, and postcollisional extensional tectonics.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Jiang Zhu, Dan-yang Liu, Chao Chen, Song Chen, Yuan-bing Zou, Leonid Danyushevsky, Jing-meng Huang, Xiang-wei Tang
Summary: Numerous lode gold and silver deposits have been discovered in orogenic belts in China. This study focuses on the formation and fluid evolutions of the super-large Yingdongpo gold and giant Poshan silver deposits in the Tongbai-Dabie orogen. The results suggest that both deposits were formed concurrently with Early Cretaceous granitic magmatism and the ore-forming fluids were primarily of magmatic origin with meteoric water inputting. The gold mineralization is related to a change in the physicochemical properties of the fluids, while the silver mineralization is favored by progressive deposition of sulfides in a slowly cooling hydrothermal system.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Arun Bhadran, B. P. Duarah, Drishya Girishbai, Mohammad Atif Raza, Avi Mero, Sandeep Lahon, A. L. Achu, Girish Gopinath
Summary: The Brahmaputra foreland basin, known for its dynamic tectonism and sediment load, exhibits a variety of seismically generated soft sediment deformation structures (SSDS) such as clastic dikes, sand sills, and micro-faults. These structures, influenced by multiple strong seismic events, are characterized by their dimensions, intrusion angles, cross-cutting relations, wall shattering, and age. The study suggests that a significant earthquake with high intensity and magnitude might have caused liquefaction features in the area. The findings highlight the importance of studying SSDS in tectonically active regions with limited surface ruptures and dense alluvial cover.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Huan Wang, Lirong Dou, Xingyang Zhang, Jiquan Yin, Beiwei Luo, Haigang Duan, Peiguang Yang, Yifan Song
Summary: Quantitative analysis of sediment composition and microfacies helped identify changes in facies belts in the Cretaceous Mishrif Formation. The study demonstrated the importance of carbonate microfacies quantification and its implications for paleogeographic research.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Boran Wang, Zhilong Huang, Dongsheng Xiao, Haiyue Yu, Wenren Zeng, Xin Wang, Tong Qu, Zhiyuan Li, Yizhuo Yang
Summary: By systematically analyzing the source rocks of the Sangonghe Formation in the Taibei Sag, NW China, and using kerogen kinetics modeling, this study reveals the influence of geological conditions on hydrocarbon generation and expulsion. The source rocks in different environments show distinct geochemical characteristics and hydrocarbon generation potential.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Haiying Yang, Zhifang Zhao, Haifeng Fan, Min Zeng, Jiafei Xiao, Xiqiang Liu, Shengwei Wu, Jiangqin Chao, Yong Xia
Summary: This paper investigates the REE enrichment and the role of Fe/Mn (oxyhydr)oxides in marine phosphorites from the early Cambrian period in South China. The study reveals that Fe/Mn (oxyhydr)oxides play a crucial role in REE enrichment and are controlled by Fe-redox pumping.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Qing Li, Hongbin Wang, Feng Cai, Di Luo, Fanxing Kong, Ang Li, Xiting Liu
Summary: The elemental and isotopic compositions and abundance of carbonates in marine sediments are used to reconstruct ancient climate and ocean conditions. This study analyzed sediment samples from the Okinawa Trough to examine the relationship between carbonates' compositions and methane seepage and sea-level changes. The results indicate that both biogenic and authigenic carbonates are important factors in understanding paleoclimate and paleoceanography.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Maryam Akbarzadeh Aghdam, Abdolreza Ghods, Farhad Sobouti, Khalil Motaghi, Keith Priestley, Mohammad Enayat
Summary: The Makran subduction zone is difficult to monitor due to limited seismic activity, but a temporary seismic network was installed to investigate the relationship between different regions and detect seismicity. The observed seismicity suggests the presence of structural boundaries and seismically inactive areas.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Zhen-Yu Wang, Hong-Rui Fan, Hai-Dong She, Kui-Feng Yang
Summary: This study conducted detailed geochemical, geochronological and isotopic analyses on the Songxian syenite in the Qinling Orogen. The results revealed the magma sources, petrogenesis and geodynamic implications of this alkaline intrusion. The study suggests that the syenite was formed through multiple stages of magmatism, involving the partial melting of the enriched lithospheric mantle and mixing with melts derived from the lower crust.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Yu Li, Wen-Liang Xu, Xiao-Ming Zhang, Jie Tang
Summary: This study presents new zircon U-Pb-Hf and whole-rock geochemical data for Jurassic intrusive rocks in the Yanbian area of NE China, providing insights into the subduction history of the Paleo-Pacific Plate. The study reveals three stages of Jurassic magmatism in the area, indicating the presence of an active continental margin related to the initial subduction of the Paleo-Pacific Plate beneath the Eurasian continent.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Lina Ai, Shengfa Liu, Shuai Cong, Hui Zhang, Peng Cao, Kaikai Wu, Wenxing Ye, Che Abd Rahim Mohamed, Xuefa Shi
Summary: This study investigates the depositional configurations and sedimentary environments of the Malacca Strait through analyzing grain size characteristics and hydrographic data. The results show that residual sediments are concentrated in the central region, while modern terrigenous sediments are distributed along the coast of Malaysia and the northern region. The sedimentary environments are influenced by seasonal variations and hydrodynamic conditions.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Liang Xiao, Jia-qi Liang, Li-yan Guo, De-shuang Ji, Man Yuan, Xiang-chuan Li, Nan Sun, Zuo-chen Li
Summary: This study investigates the correlation between stable carbon isotopes of plant fossils and CO2 levels in the Jurassic period. The results suggest a weak correlation between the two, indicating caution is needed when using stable carbon isotopes to reconstruct high paleo-CO2 concentrations.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Xuli Yang, Feng Huang, Jifeng Xu, Xijun Liu, Liying Zhang, Zhao Zhang, Benyan Xu, Man Zhang, Yunchuan Zeng, Qian Liu, Mingda Lv
Summary: The extensively developed Early Cretaceous intermediate-felsic rocks in the northern North China Craton provide valuable insights into the nature of Paleo-Pacific subduction and associated geodynamic processes. Geochemical and geochronological analyses of trachyandesites and rhyolites from the eastern Hebei, northern NCC suggest that the trachyandesites likely originated from enriched mafic lower crust and the rhyolites are derived from the trachyandesitic magmas through fractional crystallization. The migration direction change of these rocks is believed to be primarily attributed to slab rollback of the subducting Paleo-Pacific Plate.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Wei Liu, Ping Gao, Xianming Xiao, Yanming Zhao, Yijie Xing, Jinku Li
Summary: The organic-rich shales of the Shuijingtuo Formation in China are an important target for shale gas exploration. The upper section of the formation, primarily consisting of limestone, silty shale, and black shale, has been rarely studied but recently showed promising results for shale gas exploration. Geochemical investigations of the upper section shale deposits revealed that the organic matter enrichment mechanism underwent dynamic changes due to relative sea-level changes and episodic upwelling activities.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)
Article
Geosciences, Multidisciplinary
Xin Wang, Chen Zhang, Zixin Xue, Qianyou Wang, Zhenxue Jiang, Kun Zhang, Xiangye Kong
Summary: This study analyzed the heterogeneity of gas compositions and the effects of magmatism on gas accumulation in shale gas exploration in the Yangtze plate. The results showed that magmatism caused the development of micro-fractures in shale reservoirs and accelerated the thermal evolution rate of organic matter. The impact of magmatism on shale gas accumulation varied in different regions, either favoring or compromising efficient gas accumulation in shale reservoirs.
JOURNAL OF ASIAN EARTH SCIENCES
(2024)