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Dextral shear initiation of the Kangguer Shear Zone in the East Tianshan: Constraints from a “porphyroclast” system J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-14 Bo Liu, Zhengle Chen, Mengmeng Qu, Feng Yuan, Awei Mabi, Mingqiang Sheng, Jing Liu, Fengbin Han, Wengao Zhang, Hailong Huo
The Kangguer Shear Zone, located in the Eastern Tianshan Orogenic Belt, is one of the key faults for understanding the final amalgamation processes of the southwestern margin of the Central Asian Orogenic Belt. Magmatism was active in the Tuwu area of the Kangguer Shear Zone during the late Early Permian. LA–ICP–MS U–Pb dating analyses of the magmatic zircons from three monzogranite plutons, a felsic
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Ore deposit- to submicron-scale processes of magmatic ore deposits associated with mafic-ultramafic intrusions J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-13 Christina Yan Wang, Sheng-Hong Yang, Ping-Ping Liu, Lie-Meng Chen
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Tectonic evolution of the Higher Himalayan Crystalline Sequence, Dhauliganga valley, Garhwal Himalaya: Insights from P–T conditions of metamorphism and partial melting J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-13 Chandni Chaurasia, Satyajeet S. Thakur, Suresh C. Patel, Amiya Kumar Samal, Santosh Kumar, Nainika Gour
Metamorphism of pelites from the Higher Himalayan Crystalline Sequence (HHCS) in the Dhauliganga valley, Garhwal Himalaya has been studied. Two structurally lower lithounits of the HHCS, namely the Joshimath and Pandukeshwar Formations, contain kyanite-grade mineral assemblages with no evidence of partial melting and yield values in the ranges of 7.8–10.3 kbar and 646–735 °C. The Badrinath Formation
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The initial magma–fluid evolution of the Laochang porphyry molybdenum deposit in Lancang, Yunnan, SW China: Insights from the in-situ analysis of mica and titanite J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-12 Ying-Ying Zhang, Tai-Yi Luo, Yun-Fei Fan, Han-Sheng Long, Yong Yang, Jin-Biao Yang, Fu-Qing Meng
The Laochang polymetallic deposit is the only large deposit in the Changning–Menglian Junction Zone. The deposit features by deep porphyry-skarn Mo–(Cu) and shallow vein Pb–Zn–(Ag) mineralization. Researches on the deposit have yielded extensive data, however, details about the initial evolution from magma to ore-forming fluid remain unclear. This study centers on the in-situ analysis of biotite from
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The role of fractional crystallization of water-rich magma in forming high Sr/Y intermediate-silicic rocks in the Beishan orogen, NW China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-12 Runwu Li, Ying Tong, Shangguo Su, Victor P. Kovach, Lei Guo, Xianyang Li, Hongmin Lei
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Intraplate stress distribution within the Indian Plate: Insights from finite element modelling J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-11 Akhil Mishra, Radheshyam Yadav, Virendra Mani Tiwari
The Indian Plate is bounded by different types of plate boundaries like divergent, convergent/collisional, transform and consists of oceanic and continental lithosphere. Due to such tectonic settings, the intraplate tectonic stress distribution across the Indian Plate is very complex. Further, available in-situ stress information over the Indian Plate is relatively sparse; therefore, numerical modelling
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From Triassic metamorphism to Early Cretaceous anatexis in the Dabie orogen, central China: Constraints from in-situ U-Pb age and Hf and O isotopes of zircon from migmatites J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-11 Hengcong Lei, Haijin Xu, Hui Zhang, Liangpeng Deng, Dongsheng Hu, Yongkang Ye
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Potential controls on magmatic Ni-Cu sulfide mineralization in orogenic belts: Constraints from mineral compositions of the Huangshandong and Erhongwa intrusions in eastern Tianshan, NW China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-11 Hao-Hua Wang, Jian-Feng Gao, Kang Min
Numerous Permian mafic-ultramafic intrusions are situated in the eastern Tianshan Orogen at the southern margin of the Central Asian Orogenic Belt. These intrusions demonstrate a diverse range of magmatic Ni-Cu sulfide mineralization. Notably, the Huangshandong intrusion hosts a large Ni-Cu sulfide deposit, whereas the Erhongwa intrusion lacks any economically significant sulfide mineralization. Both
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Prediction of fractures by using the stress field in medium to deep shale gas reservoirs: A case study of Late Ordovician–early Silurian shale gas reservoirs in the Nanchuan region, South China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-09 Ruiqing Yang, Fengli Yang, Panpan Hu, Wei Wang, Ming Liu, Ruowen Dong
Containing representative shale gas reservoirs, the Wufeng–Longmaxi Formations in the Nanchuan region in South China have been modified by three compressional tectonic movements (in the Late Jurassic to Early Cretaceous, Late Cretaceous, and Cenozoic to present). These movements formed deeply buried reservoirs with complex in situ stresses and rapid directional changes, influencing the state of shale
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Controls on apatite compositional variations in magmatic rocks: A case study of Mesozoic mafic–felsic intrusions from the eastern North China Craton J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-09 Xiang-Yu Yan, De-Bin Yang, Wen-Liang Xu, Yi-Kang Quan, An-Qi Wang, Le-Ran Hao
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Geomorphologic and infilling characteristics of the shelf-incising submarine canyon in the eastern Makran accretionary prism, offshore Pakistan J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-09 Zhen Zhang, Huiqiang Yao, Xiguang Deng, Tingting Wu, Sanober Kahkashan
Seven shelf-incising submarine canyon systems are developed in the Makran accretionary prism, offshore Pakistan. This paper uses multibeam bathymetric data and multichannel seismic profiles to study the geomorphologic and infilling characteristics of E Canyon in the east of accretionary prism. The E Canyon extends nearly north–south from the upper slope to lower slope, the bottom of the canyon is located
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Imaging of moho topography with conditional generative adversarial network from observed gravity anomalies J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-02 Arka Roy, Rajat Kumar Sharma, Dharmadas Jash, B. Padma Rao, J. Amal Dev, J.K. Tomson
Accurate estimation of Moho topography plays a crucial role in understanding Earth’s structure, geodynamic processes, and resource exploration. This study presents a novel approach that utilizes conditional Generative Adversarial Networks (cGAN) to reveal Moho topography based on observed gravity anomalies. Synthetic training datasets of Moho topography were generated using the FFT filtering method
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Postseismic deformation mechanism of the 2021 Mw7.3 Maduo earthquake, northeastern Tibetan plateau, China, revealed by Sentinel-1 SAR images J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-02 Yanhui Liu, Lingyun Ji, Liangyu Zhu, Wenting Zhang, Chuanjin Liu, Jing Xu, Ning Li, Chen Zhang, Shuai Kang
The postseismic deformation mechanism is crucial for understanding the evolution of postseismic crustal stress, strain, and aftershocks. Here, we used ∼ 1 year Sentinel-1 data to obtain the time-dependent postseismic deformation of the 2021 Mw 7.3 Maduo earthquake and inverted afterslip distribution. We calculated the frictional parameter of the causative fault based on the time series afterslip. A
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Evolution of the Neo-Tethys traced by Late Triassic to Early Cretaceous marine remnants in the eastern segment of the Yarlung-Tsangpo suture zone, southern Tibet J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-01 Zhihao He, Xin Li, Yalin Li, Atsushi Matsuoka, Hui Luo, Xiaohui Cui, Jianbo Cheng
Widely distributed siliceous mélanges in the YarlungTsangpo suture zone preserve significant information of the Neo-Tethys and subduction-accretion processes. Similar ophiolites and siliceous mélanges are well exposed in the Xigaze and Zedong areas, however, their relationship including age assignments, depositional environments, and accretionary process remains vague. Based on radiolarian biostratigraphy
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Crystallization processes of quartz in a granitic magma: Implications for the magma chamber processes of Okueyama granite, Kyushu, Japan J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-03-01 Takashi Yuguchi, Takenori Kato, Yasuhiro Ogita, Minori Watanabe, Hayoto Yamazaki, Asuka Kato, Daichi Itoh, Tatsunori Yokoyama, Shuhei Sakata, Takeshi Ohno
Cathodoluminescence (CL) characterization combined with titanium concentration of quartz crystals in granite is a prevalent tool for elucidating the crystal growth of quartz in granitic magmas. The CL pattern yields to the internal structure, and the titanium concentration allows crystallization temperature determination based on TitaniQ geothermometry. Using two approaches, 1) observations of quartz
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Paleomagnetic results from the Early–Middle Jurassic rocks in the Tethyan Himalayas and tectonic implications J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-28 Shuai Li, Yalin Li, Xiaodong Tan, Alessandro Todrani, Zhongpeng Han, Jianbo Cheng, Siqi Xiao, Xingduo Ma, Zijian Li, Yunchuan Xu, Zihao Wang, Chengshan Wang
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Active tectonics along the mountain front around the easternmost part of the Himalayan Range: Implications for geomorphic evolution J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-28 Mondip Sarma, Devojit Bezbaruah, Tapos K. Goswami, Upendra Baral
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Rare earth element geochemistry of reef carbonates in the South China Sea since the Miocene: Insights into paleoclimatic significance J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-28 Yunxia Jia, Haibin Wu, Wen Yan, Chunxia Zhang, Bin Hu, Jiangyi Zhang, Lijun Tian, Chenglong Deng
Seawater chemistry critically affects the functioning of ocean ecosystems. However, the evolution of the seawater chemistry in the South China Sea (SCS) since the Miocene is not fully resolved, and its links to tectonic and climate changes remain unclear. In-situ, shallow marine carbonates can provide insights into long-term changes in seawater chemistry and associated environmental processes. In this
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Crystal mush rejuvenation in the formation of Triassic dacites in Mengku, SE Tibetan Plateau J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-24 Feng Cong, Fu-Yuan Wu, Wen-Chang Li, Zai-Bo Sun, Xiao-Chi Liu, De-Feng He, Wei-Qiang Ji, Fang-Yang Hu, Shao-Hua Zhang, Xiao-Ming Huang
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Applying integrated Triassic biostratigraphy in Timor-Leste to unlock an under-sampled Gondwanan sector of the Tethys puzzle J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-22 Eujay McCartain, Michael J. Orchard, Daniel Mantle, David W. Haig, Angela Bertinelli, Marco Chiari, Florentino S. Ferreira, Zelia dos Santos, John Backhouse, Barry A. Taylor, Isaias S. Barros, Bernado N. de Araujo, Antonio de Araujo, Nazario Boavida, Daniel Peyrot, Manuel Rigo
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Geodynamics and nature of the basement of the northern Lhasa Terrane: Insights from Early Cretaceous highly fractionated I-type granites in the Beila and Dongga areas, central Tibetan Plateau J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-18 Song Zhang, Feng Huang, Jifeng Xu, Yunchuan Zeng, Mingda Lv, Chaoxing Su, Ye Tian, Yamei Tian, Haiyan Fan, Shuo Wang
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Petrogenesis of Mesozoic pegmatites in the Dahongliutan Li-mineralized belt (Western Kunlun, NW China) J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-17 Hui Zhao, Bin Chen, Beiqi Zheng, Qian Yang
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Upper Cambrian and lower Ordovician conodont and carbon isotope bio-chemostratigraphy of the eastern North China Platform: Implications for global correlation and palaeoenvironments J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-17 Xinran Chen, Aihua Yang, Shengxian Du, Hadi Jahangir, Jun Chen, Fengchen Liu, Chunlin Hu, Guanzhou Yan
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Regional tectonic dynamics in Central Iran: Unveiling the interplay of fault systems through morphotectonic and seismological analyses in the Shotori mountains J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-17 Razieh Abbaspour, Seyed Morteza Mousavi, Ahmad Rashidi, Mohammad Mahdi Khatib, Reza Derakhshani
Iran, located at the convergence of the Eurasian and Arabian tectonic plates, is a region of significant geologic and tectonic interest. This setting gives rise to complex tectonic dynamics that are crucial for understanding the seismicity and geological evolution of the area. This study provides novel insights into the tectonic dynamics of Central Iran, with a particular focus on the Shotori Mountains
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Aggradation and reworking of an alluvial fan in response to climate changes on the south bank of Lake Qinghai, NE Tibetan Plateau J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-16 Zixiao Peng, Xinghe Yu, Shunli Li
Alluvial fans in the piedmont zones of mountains respond most rapidly to tectonic activity, base-level conditions, and climate changes. These allogenic signals are effectively recorded by the external morphology and internal sedimentary characteristics of the fan. Based on field survey interpretation and integrated optically stimulated luminescence (OSL) chronology, we selected a case study of the
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Geochemical transition from Cretaceous island arc basalt-like to oceanic island basalt-like basaltic rocks in the Jiurui district of the Yangtze Block, South China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-16 Yao-Ming Xu, Shao-Yong Jiang
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The depositional characteristics of turbidity current in Manila Trench: sediment provenance, geochemical elements and organic carbon burial J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-12 Xixi Ren, Jingping Xu, Houjie Wang, Meng Liu, Xiting Liu, Yan Li, Xiao Wu
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Permian mafic-ultramafic magmatism and sulfide mineralization in the Central Asian Orogenic Belt: A review J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-11 Jian-Feng Gao, Hao-Hua Wang
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Deciphering the genetic relationship between W and Au in a W-Au co-mineralized system: Trace elements of pyrite and sulfur isotopes of sulfides from the Yangwuchang W-Au deposit, North Qinling, China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-10 Jize Li, Jiajun Liu, Jeffrey de Fourestier, Degao Zhai, Di Hao, Zhanlin Ge, Fangfang Zhang, Yinhong Wang, Jianping Wang
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Liquid immiscibility acting on the formation of the Miaoya carbonatite-syenite complex in the South Qinling Belt, Central China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-10 Yu-hong Xia, Shao-cong Lai, Hang Yang, Yu Zhu, Jiang-feng Qin, Ren-zhi Zhu, Min Liu, Fang-yi Zhang, Zhe-hao Zhong
As one of the largest carbonatite-syenite complexes enriched in rare earth elements (REE) in China, the magma-hydrothermal processes of the Miaoya carbonatite-syenite complex (MCSC) are of great significance with respect to the enrichment of REE, and have therefore attracted much attention. Although the hydrothermal mineralization process of the Miaoya carbonatite-associated REE deposits has been well
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Simulation of Ediacaran Cloudina tubular growth model via electrochemical synthesis J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-08 Jinxing Cao, Fanwei Meng, Yaoping Cai
Tubular fossil and other contemporaneous cloudinids from the terminal Ediacaran (∼551–539 Ma) have long been widely regarded as the earliest known metazoans with biomineralisation. During the Ediacaran to Early Cambrian Period, three phosphorous-rich rock forming events occurred, resulting in the presence of tubular and small shelly fossils. By simulating the growth environment of tubular fossils,
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Likely gold transportation via organic complexes in sediment-hosted orogenic gold deposits in southern Tibet: From the perspective of thermodynamic modelling J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-08 Zhengpeng Ding, Xiaoming Sun, Xiaobin Xu, Shimeng Ling, Zhuoran Xie
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Stream evolution of the southeastern margin of the Tibetan Plateau: A case study of the Jinsha-Red River system J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-08 Chun Fan, Erchie Wang, Zhe Su
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Tracking provenance shift in the Cretaceous-Paleogene sedimentary succession of the Garhwal foreland basin, NW Himalaya using sediment geochemistry and U-Pb detrital zircon geochronology J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-08 Shruti Ranjan Mishra, Partha Pratim Chakraborty, Kaushik Das, Subhojit Saha, Tomoyuki Shibata, Sarada P. Mohanty, Satish Chandra Tripathi
The present study involving the sediments of Nilkanth and Subathu formations from the Himalayan foreland basin in Garhwal region, NW-Himalaya, Uttarakhand, India focuses on the tectono-sedimentary evolution of the basin in relation to the India-Eurasia collision using sandstone petrography, sediment geochemistry and detrital zircon geochronology. Geochemical proxies including i) higher concentrations
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The late Stenian and late Tonian provenance transitions in the northern Xuhuai Basin: Implications for the Precambrian evolution of the southeastern North China Craton J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-08 Zhensheng Li, Yinxiao Dong, Wei An, Ross N. Mitchell, Zhongwu Lan, Ding Wang, Mingzhen Tan, Zhuoya Zhao, Jiaodong Zhang
Late Stenian–Tonian successions in the southeastern North China Craton (NCC) provide sedimentary records associated with the amalgamation and dispersal of the supercontinent Rodinia. Integrated field investigations, elemental geochemistry, and detrital zircon (DZ) U–Pb–Hf isotope analyses of the Huaihe and Langan groups in the northern Xuhuai Basin provide important constraints on their depositional
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Biostratigraphically constrained age assessment and paleoenvironments of the early Miocene syn-rift deposits of the Gulf of Suez eastern margin, Egypt J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-08 Raed Badr, Ahmed N. El-Barkooky, Abdel-Moneim El-Araby, Nicholas Christie-Blick, Samah El-Nahas, Wagih El-Fiki, Ahmed Zakaria
The absence or rarity of some global marker taxa in the semi-restricted Suez rift basin has led to uncertainty with respect to the age of the early -rift deposits. To tackle this issue, high-resolution foraminiferal and calcareous nannofossil biostratigraphy was undertaken on sections in the Wadi Baba area at the eastern basin margin. Two planktic foraminiferal bioevents of early Miocene age are recognized:
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Petrogenesis of the early Permian A-type granites in eastern North Tianshan, Central Asian Orogenic Belt: Implications for the final geodynamic evolution of the Kalamaili suture zone J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-07 Feng Gao, Xianzhi Pei, Yuanfeng Cheng, Ruiqing Guo, Chenyang Sun, Xiaoqiang Liu, Zuochen Li, Youxin Chen, Meng Wang, Zengxin Liu
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Petrogenesis and tectonic implication of the Middle Triassic pegmatite from the Mokeri area, eastern segment of the East Kunlun Orogen (China) J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-07 Le-Guang Li, Zi-Yang Fan, Chang-Qian Ma, Lian-Xun Wang
The newly discovered pegmatite, along with associated syenogranite and gabbroic diorite in the Mokeri area of the East Kunlun Orogen (EKO), were comprehensively investigated utilizing geochronological, whole rock and mineral chemical analysis. Zircon U-Pb dating results indicate that the pegmatite and syenogranite were emplaced almost simultaneously at 236 ± 4 Ma and 236 ± 2 Ma, respectively, while
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Early Cretaceous mafic rocks in the Tethyan Himalaya igneous province, Tibet: Implications for the eastern Gondwana breakup J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-07 Yi-Nan Wang, Sheng-Sheng Chen
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Geochronology and petrogenesis of the Miocene S-type Sumayar granite in the Karakoram Block, north Pakistan: Implications for post-collisional magmatism J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-06 Amjad Hussain, Kui-Dong Zhao, Hafiz U. Rehman, Izhar Sadiq, Qian Li, Sher Sultan Baig, Syed Asim Hussain, Inayat Ullah
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Provenance and deformation style of lower Cretaceous sedimentary rocks in Huangcheng basin, northeastern Tibetan Plateau J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-01-30 Jiabao Jia, Wenjun Zheng, Renjie Zhou, Weitao Wang, Changhuan Feng, Yigen Qin
The sedimentary rocks in the Hexi Corridor, north-eastern Tibetan Plateau, contain information about crustal deformation during and after the closure of the Meso-Tethys Ocean and the growth of the Tibetan Plateau. This study examines the origin and deformation of Late Mesozoic sedimentary rocks in the Huangcheng basin where the source of Late Mesozoic sedimentary rocks and deformation styles of faults
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Apatite and zircon geochemistry deciphers difference in the nature of ore-forming magma in the Bangpu porphyry Mo-Cu deposit, Tibet J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-03 Pan Tang, Juxing Tang, Liqiang Wang, Bin Lin, Faqiao Li, Jing Qi, Mengdie Wang, Yan Xiong, Jinlin Xie, Gang Tao
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U-Pb ages of detrital zircons and composition of clastic sedimentary rocks from the southern periphery of the Siberian craton: Implications for the earliest Cambrian evolution of southern Siberia J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-03 Zinaida L. Motova, Tatiana V. Donskaya, Dmitrii P. Gladkochub, Valentin B. Khubanov
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Eocene high-K magmatic flare-up in a context of south dipping subduction and strike-slip tectonics: Insights from the Talysh Massif, NW Iran J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-03 Alizadeh Noudeh Shiva, Rolland Yann, Rossi Magali, Bruguier Olivier, Rahgoshay Mohammad
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Intermontane erg environment and arid climate indicated from associated eolian and alluvial fan facies during the Late Cretaceous, South China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-02 Chenyu Zheng, Jingyu Wang, Xianghui Li, Chaokai Zhang
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Reservoir quality of the Lower–Middle Permian Shan 2 and He 1 members in the Ordos Basin, China: Implications for depositional and diagenetic processes and the role of volcanic tuffaceous sediment in tight sandstones J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-02 Zhiyuan Lu, Zhiliang He, Jon G. Gluyas, Guangxiang Liu, Tao Liu, Chunfang Chen, Min Zou
The Permian Shan 2 and He 1 members (Shan 2-He 1 Mbr) are the main tight gas-producing intervals in the Ordos Basin. This reservoir mainly comprises low-permeability and ultra-low-permeability fluvial–deltaic sandstones. However, the formation of tight sandstone reservoirs, particularly those associated with volcanic tuffaceous sediment, remains poorly understood. Therefore, in this study, we aimed
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Orbital cycles recorded in Early Cambrian shales with implications for organic matter accumulation J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-02 Siding Jin, Yan Liu, Chao Ma, Quanlin Zhang, Anqing Chen
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Sedimentary controls of shale heterogeneity: A case study of Wufeng–Longmaxi shales in the south Sichuan Basin, China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-02 Sichen Lin, Haihua Zhu, Shuyou Shi, Zhen Zou, Xi Zhang, Tingshan Zhang, Xiuru Ye, Lei Chen, Fuyuan Zhang
The shales show obvious heterogeneity during the Late Ordovician-Early Silurian in South Sichuan Basin, China. To elucidate the sedimentary control factors of the heterogeneity of the Wufeng-Longmaxi Formation shales and developmental model, we conducted petrological observations, X-ray diffraction analysis, and geochemical studies of the two wells. The findings indicate 10 graptolite biozones are
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Late Ordovician lingulid brachiopods from the Pingliang Formation (Shaanxi Province, North China): Morphological and ecological implications J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-02 Yue Liang, Rao Fu, Yazhou Hu, Fan Liu, Baopeng Song, Mei Luo, Xinyi Ren, Jiayue Wang, Caibin Zhang, Ruisen Fang, Xuan Yang, Lars E. Holmer, Zhifei Zhang
Brachiopods first appeared in the early Cambrian and persist till present. They are one of the main lineages of marine invertebrates that diversified throughout the Paleozoic and reached their maximum diversity of high-rank taxonomy during the Ordovician. During this time interval, brachiopods were mainly dominated by the articulated Orthida and Strophomenida, which represent major components of the
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A flat lithosphere-asthenosphere boundary (∼60 km depth) in central Eastern China: Implications for lithospheric destruction and evolution J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 Xinfu Li, Xiaobo He, Shuo Xu, Hongyi Li, Guoming Jiang
Detailed knowledge of the lithospheric thickness is important for understanding the tectonic evolution in central Eastern China, characterized by ore deposits in the Middle-Lower Yangtze Metallogenic Belt (MLYMB). We realize this goal by applying the common conversion point (CCP) stacking to Sp receiver functions (SRF) computed from 234 broadband seismic stations in central Eastern China. Distinct
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The effect of crustal density heterogeneity on determining gravimetric geoid: Example in Central Anatolia, Türkiye J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 Muhammet Nergizci, Ramazan Alpay Abbak, Muzaffer Ozgu Arisoy
Accurate geoid height determination are crucial for achieving high precision in geospatial measurements. In this context, one key challenge is accounting the density for the Earth’s topography, which varies considerably across different regions. The assumption of a homogeneous crustal density value of 2.67 g/cm has traditionally been employed in geoid determination using Stokes’ formula. However, recent
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Spatial and temporal changes of b-value, fractal analysis and stress tensor inversion in the Sistan and Makran zones, Eastern and Southeastern Iran J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 Mahnaz Sabahi, Mohammad Mahdi Khatib, Yahya Djamour
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Zinc isotopic compositions of late Cenozoic basaltic rocks from Vietnam: Constraints on recycled carbonates in the mantle source J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 Sung Hi Choi, Thi Hong Anh Hoang, Sheng-Ao Liu
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The Early lateral collision of India and Asia: New insights from meso and microstructures from schistose rocks of Lesser Himalaya, NW Pakistan J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 Mustafa Yar, Asghar Ali
Detailed micro and meso structural investigation of schistose rocks from Mula Gori area, Lesser Himalaya (Pakistan), has been carried out to deduce the early history of deformation. From these analysis four deformation events (D, D, D and D) have been inferred. The D is preserved as inclusion trails in FIA 1 garnet porphyroblasts and the fold axis of macroscopic fold in the studied area. They display
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Contemporary crustal kinematics in the Guangdong-Hong Kong-Macao Greater Bay Area, SE China: Implications for the geothermal resource exploration J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 Xianrui Li, Shaopeng Huang, Tobias Hergert, Andreas Henk, Qiujiao Du
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Source characterization of Intermediate-Depth earthquakes in southern Java, Indonesia J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 M. Megawati, Kuo-Fong Ma, Po-Fei Chen, Dimas Sianipar, Ming-Che Hsieh
The rupture behavior of intermediate-depth earthquakes in southern Java remains poorly understood despite their potential seismic hazard. In this study, we performed finite-fault inversions to investigate the rupture processes and source characteristics of five intermediate-depth earthquakes (60–300 km depth) with moment magnitudes ≥ 6.1 from 1998 to 2017 in the southern region of Java and its surrounding
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Stress drops and scaled energies of micro-earthquakes at Koyna-Warna, India: Implications for self-similarity scaling J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-02-01 C.R. Mahato
The scale-(in)dependency of source physics of micro-earthquakes with increasing seismic moment is one of the most debated fundamental question in the seismology. In this study, we have investigated the stress drops and scaled energies to see the existence of scale-(in)variance of source properties with increasing earthquake size. The analyzed 982 earthquakes (M 0.5–5.1) are recorded by borehole and
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A case study for efficient magma mixing: Constraints from early Paleozoic high Ba–Sr granitoids in the North Qinling Orogen, Central China J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-01-28 Leran Hao, Debin Yang, Wenliang Xu, Anqi Wang, Yikang Quan, Xiangyu Yan, Shuo Wang, Feng Wang
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Coupling data-driven geochemical analysis and ensemble machine learning for automatic identification of oceanic anoxic events J. Asian Earth Sci. (IF 3.0) Pub Date : 2024-01-20 Sherif Allam, Khalid Al-Ramadan, Ardiansyah Koeshidayatullah
Oceanic Anoxic Events (OAEs) have been recorded across the Phanerozoic and linked with catastrophic events in geological records, including the massive release of CO2 into the atmosphere and mass extinctions of marine animals, particularly during the Cretaceous period (e.g., OAE-2). Overall, the occurrence of OAEs were typically identified based on the deposition of organic-rich black shales, carbon