Article
Geosciences, Multidisciplinary
Zhong-Quan Li, Jun-Liang Chen, Hao Zou, Cheng-Shan Wang, Qi-An Meng, Heng-Lin Liu, Shi-Ze Wang
Summary: The Songliao Basin in northeast China underwent multiple stages of structural evolution, including foreland compression, syn-rift and post-rift period, as well as structural inversion stage. These processes were influenced by the Paleo-Asian Ocean, the Mongol-Okhotsk Ocean, and the Paleo-Pacific Ocean.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Zhili Yang, Xiaohui Zhang, Lingling Yuan
Summary: This study examines two episodes of Mesozoic mafic dyke swarms in the northern China-southern Mongolia plate. The characteristics of these swarms provide insights into the tectonic evolution of the region during the Mesozoic period.
Article
Multidisciplinary Sciences
Mingguo Zhai
Summary: This study examines the formation conditions of banded iron formation and Cu-Zn sulfide deposits in the Qingyuan greenstone belt of the North China Craton, highlighting their coexistence during a brief period in the late Neoarchean and Paleoproterozoic. The findings contribute to understanding the tectonic regimes and environmental changes of that time period.
Article
Geosciences, Multidisciplinary
Jinyu Li, Ye Qian, Leontine Tekoumc, Changji Zhao, Jinlei Sun, Tao Zheng, Fengyue Sun, Yanjie Shen
Summary: The Jurassic granitoids in the Wulong region of the Liaodong Peninsula, NE China, show characteristics of S-type granite and were possibly derived through partial melting of metagraywacke. These rocks exhibit geochemical features of S-type granite with K-rich adakitic qualities, potentially formed through mixing of melts from clastic crustal materials and adakitic magmas.
JOURNAL OF EARTH SCIENCE
(2021)
Article
Geochemistry & Geophysics
Jiaqi Ling, Pengfei Li, Chao Yuan, Min Sun, Yunying Zhang, Tserendash Narantsetseg, Xiangsong Wang, Yingde Jiang, Wanwan Hu
Summary: The study sheds light on the petrogenesis and ages of Paleozoic granitic plutons in the western Mongol-Okhotsk Orogen, highlighting their significance in the geological evolution and providing new insights into the tectonic evolution of the region.
Article
Geochemistry & Geophysics
Andrey A. Sorokin, Victor A. Zaika, Nikolai M. Kudryashov
Summary: The study reveals three stages of granitic magmatism in the eastern Mongol-Okhotsk Belt: Cambrian, Middle Devonian, and Late Permian-Early Triassic. The granites show distinct geochemical signatures, suggesting different tectonic settings for their formation.
Article
Geochemistry & Geophysics
Ariuntsetseg Ganbat, Tatsuki Tsujimori, Laicheng Miao, Inna Safonova, Daniel Pastor-Galan, Chimedtseren Anaad, Munkhtsengel Baatar, Shogo Aoki, Kazumasa Aoki, Ilya Savinskiy
Summary: The study reveals the igneous activity in different ages in the Khangay-Khentey basin of central Mongolia, showing the sources, melting processes, and formation of the crust in different time periods, providing important clues for the geological evolution of the region.
Article
Geosciences, Multidisciplinary
Zhaojian Wu, Xiaoyong Yang, Yongsheng Ma, Saijun Sun, Xiaozhong Han, Yuzhou Zheng, Shuang Li
Summary: This study systematically reassesses and summarizes the spatial-temporal distribution, rock assemblage, and geochemical characteristics of Mesozoic igneous rocks in Northeast China. The research concludes that Northeast China experienced the superposition and transformation of the Paleo-Asian Ocean (PAO) domain, the Mongol-Okhotsk Ocean (MOO) domain, and the PaleoPacific Ocean (PPO) domain in the Mesozoic. The detailed tectonic evolution during different periods is presented.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Zhenzhen Wang, Zhidan Zhao, Xuping Li, Yuanku Meng, Dong Liu, Xuanxue Mo, Jun Lv, Fuyun Cong
Summary: This study investigates the geochemical characteristics, petrogenesis, and geodynamic implications of the early Jurassic A-type granitoids in Heihe, Xing'an block, in order to shed light on the evolution and spatial extent of the Paleo-Pacific tectonic regime.
Article
Geology
Yan Jing, Wen-Chun Ge, Yu Dong, Hao Yang, Zheng Ji, Jun-Hui Bi, Hong-Ying Zhou, De-He Xing
Summary: There is a general consensus that subduction of the Paleo-Pacific oceanic plate has caused extensive magmatism, lithospheric deformation, and metal mineralization in the eastern margin of the Eurasian continent during the Late Mesozoic. However, the details of this subduction process and the transition from the Paleo-Asian Ocean to the Paleo-Pacific Ocean remain poorly understood. Geological observations, zircon U-Pb dating, whole-rock geochemistry, and isotopic compositions of Jurassic intrusions along the northern margin of the North China Craton suggest that adakitic magmas were produced by the subduction of the Paleo-Pacific Ocean. The presence of calc-alkaline rocks and I-type granites also indicate a complex tectono-magmatic history in response to subduction processes.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geosciences, Multidisciplinary
A. Yu Kadashnikova, A. A. Sorokin, A. Ponomarchuk, A. Travin, V. A. Ponomarchuk
Summary: Based on 40Ar/39Ar geochronological studies, the age of gold mineralization in the Elga deposit located in the eastern part of the Mongol-Okhotsk fold belt has been determined. The study found that the formation of the deposit is not related to magmatic processes but rather to postcollisional dislocation processes.
RUSSIAN JOURNAL OF PACIFIC GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
G. L. Kirillova
Summary: This study describes the most studied sections of Jurassic deposits along the Mongol-Okhotsk Fold System, providing new ideas and a reliable foundation for geodynamic and mineragenic reconstructions in the region.
RUSSIAN JOURNAL OF PACIFIC GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Mengqi Li, Shijie Wang, Xiaojie Dong, Zhenghong Liu, Qian Sha, Gang Li
Summary: By studying the felsic rocks in the west and east Songliao Basin, this research reveals two tectonic systems, namely the Palaeo-Pacific tectonic system and Mongol-Okhotsk tectonic system, which dominated the Late Jurassic and Early Cretaceous magmatic activities in NE China. The Palaeo-Pacific tectonic system mainly affected the east side of Songliao Basin, while the Mongol-Okhotsk tectonic system mainly affected the Erguna Block.
GEOLOGICAL JOURNAL
(2023)
Article
Geology
Yu. N. Smirnova, Yu. V. Smirnov
Summary: This paper presents the results of geochemical and isotopic studies on the sandstones of the Aga-Borshchovochnyi complex in the Mongol-Okhotsk Fold Belt. The research indicates that these sandstones were deposited in the Early Jurassic period, most likely during the final stage of the closure of the Mongol-Okhotsk Paleocean.
STRATIGRAPHY AND GEOLOGICAL CORRELATION
(2022)
Article
Geochemistry & Geophysics
V. A. Zaika, A. A. Sorokin
Summary: The study reveals that the metasedimentary rocks of the Galam Terrane contain a significant amount of Archean and Paleoproterozoic zircons, sourced mainly from igneous and metamorphic complexes of the southeastern margin of the Siberian Craton. Additionally, some Devonian and Carboniferous zircons were found to be derived from eroded island arcs in the Mongol-Okhotsk Paleocean.
Article
Geosciences, Multidisciplinary
Zhang ChenChen, Zhang Shun, Wei Wei, Wu ChaoDong, Liang JiangPing, Niu Wen, Du JinXia, Fu XiuLi, Cui KunNing, Wang Chao, Wang Hui
SCIENCE CHINA-EARTH SCIENCES
(2014)
Article
Geosciences, Multidisciplinary
Weijiao Ma, Jinbu Li, Min Wang
Summary: The petroleum resource assessment obtained from laboratory tests on old core samples tends to underestimate the in situ resources. This study investigates the hydrocarbon loss and restoration by comparing preserved and exposed core samples. It is found that previous studies have severely underestimated the in situ hydrocarbon potential due to factors such as sample crushing and crucible waiting. A new restoration model is proposed to compensate for these losses.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Shaoyun Chen, Yongqiang Yang, Longwei Qiu, Xiaojuan Wang, Erejep Habilaxim
Summary: Quartz cement is an important authigenic mineral in the tight sandstones of the Shaximiao Formation in the Sichuan Basin. This study analyzed the silicon sources of the quartz cement using mineralogical, fluid inclusion, and geochemical data. The results showed that smectite alteration and dissolution of aluminosilicate minerals were the primary sources of silicon for quartz cementation. Contributions from volcanic material hydrolysis and pressure solution were relatively minor. The presence of chlorite films inhibited the development of quartz overgrowths and had minimal impact on reservoir quality.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Xing Jian, Ping Guan, Ling Fu, Wei Zhang, Xiaotian Shen, Hanjing Fu, Ling Wang
Summary: This study presents a synthesis of new detrital zircon dating results and published data from the Cenozoic Qaidam basin, revealing the spatiotemporal variation of detrital zircon age populations and supporting models of synchronous deformation in northern Tibet. The study emphasizes the importance of considering textural and sedimentological parameters in zircon provenance interpretations, as well as the need for integrated provenance analysis involving other detritus components.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
A. Peketi, G. Sriram, A. Mazumdar, P. Dewangan, A. Zatale, V. Rajurkar, Gayatri Shirodkar, V. Mahale, V. Yatheesh
Summary: This study investigates 13 submarine seamounts in the southern Andaman volcanic arc and observes evidence of hydrothermal activity in one of the seamounts. The evidence includes plumes rich in dissolved gases, live chemosymbiotic organisms, and the deposition of neoforming minerals. These observations suggest the development of a new hydrothermal field in the least explored Andaman Sea.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Yanxian Zhu, Zhiliang He, Xiaowen Guo, Long Li, Sheng He, Jian Gao, Shuangjian Li, Huili Li
Summary: This study investigates the fluid evolution history of the hydrothermal dolomite reservoir in the Middle Permian Maokou Formation in the Sichuan Basin. The results reveal the diagenetic sequences, mineral origins, salinity history, and pressure evolution using various analytical techniques. The findings provide important insights into the gas charge, escape, and preservation conditions of the reservoir.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Rafaella de Carvalho Antunes, Julia Campos Guerrero, Ricardo Jorge Jahnert
Summary: This study presents a detailed sedimentary model and identifies various sedimentary facies associations in the coquina deposits of the Itapema Formation in the offshore pre-salt Buzios Field of the Santos Basin. These facies associations were primarily influenced by waves and currents and reflect a complex depositional system.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Kang Meng, Tongwei Zhang, Deyong Shao, Xiuyan Liu, Hui Song, Heng Peng
Summary: In this study, an integrated method of measuring optical reflectance and Raman spectroscopy is proposed to accurately determine the thermal maturity of Lower Cambrian shales in South China. The results show that this method is reliable and effective, and it has important implications for analyzing overmature shale.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Mohamed A. K. El-Ghali, Olga Shelukhina, Iftikhar Ahmed Abbasi, Mohamed S. H. Moustafa, Osman Salad Hersi, Numair A. Siddiqui, Khalid Al-Ramadan, Abdullah Alqubalee, Abdulwahab Muhammad Bello, Abduljamiu O. Amao
Summary: This study employs an integrated depositional and sequence stratigraphic approach to assess the control of diagenesis on reservoir porosity of a hybrid-energy delta system. The study focuses on the Barik Formation in the Haushi-Huqf region of Central Oman, which represents a highstand system tract of a hybrid-energy delta. The assessments reveal that the reservoir porosity is controlled by various degrees of diagenetic processes, including mechanically infiltrated clays and kaolinitization of silicate grains.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Xiaocan Yu, Chunlian Wang, Hua Huang, Kai Yan
Summary: Oilfield brines are a significant alternative lithium resource. This study investigates the metallogenic characteristics and enrichment process of oilfield brines from the Jianghan Basin, central China using chemical and multi-isotope data. The results suggest that lithium enrichment in these brines is the result of interaction with clastic host rocks and dilution by meteoric water.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Jianghao Qiao, Xiwu Luan, Thanuja D. Raveendrasinghe, Yintao Lu, Guozhang Fan, Xinyuan Wei, Long Jin, Jian Yin, Haozhe Ma, Lushan Jiang
Summary: This study investigates the Tanintharyi passive continental margin in the Andaman Sea and reveals the potential of the Oligocene/Early Miocene carbonate platform in the region as a significant hydrocarbon reservoir. It also examines the influence of changes in sedimentary facies and the tectonic setting of the Andaman Sea on the evolution of pockmarks.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Anastasios Nikitas, Georgios Makrodimitras, Maria V. Triantaphyllou, Nikolaos Pasadakis, Kimon Christanis, Stavros Kalaitzidis, Grigoris Rousakis, Ioannis Panagiotopoulos, Alexandra Gogou, Alexandros Papadopoulos, Efthimios Tartaras, Aristofanis Stefatos
Summary: Due to the lack of deep wells in the broader region, studying mud volcanic deposits can improve the geological understanding of the Mediterranean Ridge. In this study, biostratigraphic and geochemical analyses were performed on mud breccia deposits from five Mud Volcanoes in the central MR. The results indicate the origin of these deposits and provide insights into the source rock potential. Seismic data is also used to determine the distribution of major lithostratigraphic formations.
MARINE AND PETROLEUM GEOLOGY
(2024)