Article
Geosciences, Multidisciplinary
Mengwei Zhang, Xingqi Liu, Yaling Wu, Yongbo Wang, Yong Wang
Summary: This study reconstructed the regional climate changes since mid Marine isotope stage 3 (MIS 3) by analyzing fossil pollen samples from a drill core in Jilantai Salt Lake, Inner Mongolia, China. The results show that the climate was relatively humid during mid-late MIS 3, became arid during MIS 2, and hyperarid during the Holocene. The evaporation capacity, influenced by Northern Hemisphere summer insolation and ice volume, may have played a crucial role in vegetation and climate changes in the Jilantai Basin since mid-MIS 3.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Multidisciplinary Sciences
Jiyuan You, Yiqun Liu, Dingwu Zhou, Yiyao Yang
Summary: The study presents the original discovery of well-preserved hydrothermal chimneys in the geological record and provides evidence of hydrothermal activity in sedimentary rocks. The ancient chimneys may be related to oil production and serve as important indicators for future oil investigations. Their in situ geochemistry and sulfur isotopes suggest a possible magmatic trigger for these hydrothermal vents.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Yun Jiang, Jianqiang Wang, Chiyang Liu, Haoyuan Jiang, Ming Shao, Dongdong Zhang
Summary: This study reports the sediment characteristics and paleoclimate changes in the Eocene of the Qaidam Basin, showing that the Lulehe Formation was formed in a freshwater environment, while the Xiaganchaigou Formation was formed in alternating brackish water and freshwater environments. The results indicate that the paleoclimate gradually changed from warm and humid to cold with humid-dry seasonal changes, which is consistent with the global decrease in temperature in the Eocene. These studies provide some guidance for sedimentary evolution and paleoclimate change.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
Tian Sun, Kangkang Yu, Zihan Zhao, Mingli Zhang, Yanhua Wang
Summary: In this study, sediment cores were collected in the northern Taihu Basin, China, and the concentrations of total nitrogen (TN), total phosphorus (TP), and total organic carbon (TOC) were measured. The results showed a rising trend of TN, TP, and TOC levels in the sediments after the 1960s. The primary source of sediment organic matter shifted from algae and plankton to terrestrial plants since the 1940s, and TN and TOC were found to be the dominant control factors of sedimentary environmental quality.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Geography, Physical
Socorro Lozano-Garcia, Esperanza Torres-Rodriguez, Blanca Figueroa-Rangel, Margarita Caballero, Susana Sosa-Najera, Beatriz Ortega-Guerrero, Carmen Acosta-Noriega
Summary: A new detailed pollen record from Lake Chalco in the Basin of Mexico provides insights into vegetation dynamics and climate variability during the penultimate glacial-interglacial-glacial cycle. The record shows changes in plant composition, wetter and drier conditions, and tree-line shifts in response to climate change and taxa migration. Comparisons with other records reveal the vegetation's response to glacial and interglacial changes and millennial-scale variability.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Environmental Sciences
Wei Li, Chiyang Liu, Shuhui Wang, Yu Lei, Yijun Zhou, Qing Guo, Guoping Liang, Wei Han
Summary: The study revealed that there are four different levels of unconformity developed in the Linhe Depression of the Hetao Basin, with highly developed faults mainly trending northeast-northeast. Based on regional structural morphology and fault system, the area shows a structural pattern of two uplifts, two depressions, and one slope. The tectonic evolution analysis suggested that the Paleozoic Hetao Basin was in an uplifted state, forming an east-west tectonic belt under north-south compression force, and experienced various stages of tectonic events in the Mesozoic era under the influence of the Hetao arc structure system.
FRESENIUS ENVIRONMENTAL BULLETIN
(2021)
Article
Environmental Sciences
Xiangquan Li, Xinwei Hou, Zhenxing Wang, Chunchao Zhang, Jianfei Ma, Ming Gao, Changchang Fu, Zhanxue Bai, Chunlei Gui, Xuefeng Zuo
Summary: This study used various techniques to investigate the hydrogeological characteristics of the Jindong coal basin. A water-rich aquifer, the deep Cambrian Zhangxia formation oolitic limestone, was discovered. The dynamics of karst groundwater were significantly affected by coal mining, leading to changes in groundwater level, karst spring flow, and water sources. The findings of this study will provide a scientific basis for groundwater exploration, exploitation, and the sustainable development of coal basins.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
Boyan Li, Nengcheng Chen, Wei Wang, Chao Wang, R. J. P. Schmitt, Anwen Lin, Gretchen C. Daily
Summary: This study analyzes the eco-environmental impacts of dams in the Yangtze River Basin in China, finding that the negative environmental effects of existing dams have significantly increased, affecting downstream areas and reservoir regions. The construction of dams has reduced the complexity of runoff and sediment loads in the short term, reflecting a filtering effect on the temporal and spatial patterns.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Mi Zhou, Hongxun Liu, Liqun Peng, Yue Qin, Dan Chen, Lin Zhang, Denise L. Mauzerall
Summary: This study analyzes the air-quality, health, and carbon interdependencies of different heating options in northern China, finding substantial benefits in air quality and health from clean heating options, along with increased heating costs. By 2030, heat pumps show the largest health-carbon synergies among the options analyzed, despite high capital costs, they have lower operating costs and are competitive for long-term use. Increased subsidies for heat pumps can further improve air quality and carbon mitigation in the clean heating transition.
NATURE SUSTAINABILITY
(2022)
Article
Geography, Physical
Adrian Alvarez-Vena, Diego J. Alvarez-Lao, Cesar Laplana, Jose M. Quesada, Julio Rojo, Eduardo Garcia-Sanchez, Mario Menendez
Summary: The La Giielga Cave in Asturias, NW Spain, contains a stratigraphic succession spanning from 47.2 +/- 2.2 to 38.6 +/- 0.5 cal kyr BP, documenting the transition from Neanderthals to Early Modern Humans. Analysis of a rich small-mammal assemblage in the cave reveals climate-cooling phases coinciding with cultural events, and comparisons with regional and global records show synchronization with glacier movements and global climatic events. Discussions are made on the impact of these environmental changes on human cultural and biological transitions.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geography, Physical
Mengwei Zhang, Xingqi Liu, Zhitong Yu, Yong Wang
Summary: The study reveals that in the past 47,000 years, the climate in the marginal regions of the Asian summer monsoon has transitioned from relatively humid to progressively arid, eventually becoming extremely arid. This climate change pattern is different from regions influenced by the Asian monsoon and westerlies, indicating that the driving mechanism for climate change in these areas may not be primarily related to the monsoon or westerlies.
QUATERNARY INTERNATIONAL
(2022)
Article
Geosciences, Multidisciplinary
Lin Wu, Xingqiang Feng, Shuwei Guan, Guangyou Zhu, Haijun Yang
Summary: In this study, the researchers analyzed the U-Pb age spectra of detrital zircons from sedimentary rocks in the Tabei Uplift and surrounding regions, and revealed temporal and spatial changes in Neoproterozoic sedimentary provenances. They established a geological framework of basin-orogen structure and elucidated the long-term evolution of the Tabei Uplift.
PRECAMBRIAN RESEARCH
(2022)
Article
Engineering, Environmental
Zhixiong Weng, Eugene Han, Yufeng Wu, Lei Shi, Zhong Ma, Tingting Liu
Summary: The study examines the impact of the Coal to Natural Gas or Electricity (CNGE) policy on air pollution in China and estimates the cost of transitioning to cleaner heating options. The results suggest that the policy has effectively reduced air pollutants and can serve as a reference for other countries looking to transition away from coal.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Construction & Building Technology
Hui Li, Lingyue Zhang, Tianqi Chen, Hua Liao
Summary: The heating season in Northern China, which typically relies on high-polluted coal, poses a serious threat to air pollution and human health. In response, the Chinese government introduced the clean heating policy in 2017 to transition from coal to gas or electricity. To assess the progress and impact of this policy, a comprehensive evaluation was conducted. The evaluation analyzed the effects of the policy on air quality from both temporal and spatial perspectives, as well as estimated the health benefits obtained. The empirical results showed significant improvements in PM2.5 pollution mitigation in the "2 + 26 cities" and a larger reduction in SO2 and CO emissions in the Fenwei Plain cities. Furthermore, Tianjin and Hebei demonstrated efficient inhibition of PM2.5 pollution. The policy effects were most concentrated in the first batch of pilot cities and weaker in the subsequent batches. The study also traced the year-by-year impacts of clean heating on air pollutants in the first batch of pilot cities and demonstrated temporal variations in the policy effects. The accumulated health benefits resulting from improved air quality were substantial, supporting evidence-based policymaking in China and providing insights for other developing countries to adopt similar household energy transition initiatives.
ENERGY AND BUILDINGS
(2022)
Article
Engineering, Civil
Yuan Liu, Zhuohang Xin, Siao Sun, Chi Zhang, Guangtao Fu
Summary: This study analyzes the multi-dimensional impacts of China's inter-basin water transfer (IBWT) at the sub-basin scale. The results show that IBWT improves environmental flow conditions in some recipient sub-basins and brings economic and social benefits. However, sub-basins with low water resources face higher environmental and socioeconomic risks. Therefore, it is necessary to assess the impacts of IBWT at finer spatial scales.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Muthusamy Balasubramanian, Sithu Govindasamy Dinakaran Sridhar, Ramamoorthy Ayyamperumal, Shankar Karuppannan, Gnanachandrasamy Gopalakrishnan, Monica Chakraborty, Xiaozhong Huang
Summary: The research paper investigates the consequences of seawater intrusion in the Chennai coastal aquifer through a comprehensive analysis of groundwater samples, stable isotopic analyses, and correlations between various influencing factors. The study reveals that seasonal, geogenic, and anthropogenic factors all play significant roles in the heterogeneous chemistry of groundwater in the area.
MARINE POLLUTION BULLETIN
(2022)
Article
Geography, Physical
Jun Zhang, Xiao-zhong Huang, Jia-le Wang, Richard H. W. Bradshaw, Tao Wang, Li-xiong Xiang, De-rui Luo, Zong-li Wang, Fa-hu Chen
Summary: Precipitation is a crucial factor in primary productivity in arid and semi-arid regions. This study in the north Qinghai-Tibetan Plateau revealed the relationship between grazing intensity and regional humidity, indicating that drier regional climates can push human and livestock activities to mountainous areas. The findings provide insights on how ancient people adapted to climate change in arid regions with high mountains.
PROGRESS IN PHYSICAL GEOGRAPHY-EARTH AND ENVIRONMENT
(2022)
Editorial Material
Multidisciplinary Sciences
Xianyong Cao, Jianhui Chen, Fang Tian, Qinghai Xu, Ulrike Herzschuh, Richard Telford, Xiaozhong Huang, Zhuo Zheng, Caiming Shen, Wenjia Li
Article
Geosciences, Multidisciplinary
Naimeng Zhang, Xianyong Cao, Qinghai Xu, Xiaozhong Huang, Ulrike Herzschuh, Zhongwei Shen, Wei Peng, Sisi Liu, Duo Wu, Jian Wang, Huan Xia, Dongju Zhang, Fahu Chen
Summary: This study reconstructed the interaction between prehistoric humans and vegetation in the Qinghai Lake Basin using pollen records. The results show vegetation changes and human disturbance to the local vegetation.
Article
Geosciences, Multidisciplinary
Xuemei Chen, Xiaozhong Huang, Duo Wu, Jianhui Chen, Jiawu Zhang, Aifeng Zhou, John Dodson, Atun Zawadzki, Geraldine Jacobsen, Junqing Yu, Qingbai Wu, Fahu Chen
Summary: This study used pollen and other multi-proxy analyses to reconstruct the history of land use and ecosystem dynamics in central Yunnan Plateau. The results showed that human land use has impacted regional vegetation and landscape since 50 CE, while climate change has mainly influenced vegetation changes.
Article
Geography, Physical
Guangliang Yang, Yuxin Fan, Qingsong Cai, Fei Wang, Qingsong Zhang, Xueyu Yan, Minmin Gao, Fahu Chen
Summary: Quaternary aeolian silts in the Chinese Loess Plateau originate from the Qilian Mountains in the northeastern Tibetan Plateau, primarily transported by winter wind circulation, in contrast to the sourcing of fluvial sediments in the Yellow River.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Yuan Li, Xiaozhong Huang, Lixiong Xiang, Jun Zhang, Yue Xu, Lihui Tian, Yanxiang Jin, Xin Jin, Yongtao Zhao, Lele Ren, Hui Zhao
Summary: This study provides insights into the Holocene hydroclimatic change in arid central Asia by analyzing sedimentary records from Kanas Lake. The results suggest that regional precipitation is the main driving factor for the hydrological environment changes in glacier-fed lakes, and increased precipitation greatly intensified the trans-Eurasian dispersal of crops and livestock.
Article
Geosciences, Multidisciplinary
Jun Zhang, Xiaozhong Huang, Mingrui Qiang, Otgonbayar Demberel, Wenjia Wang, Min Zheng, Lixiong Xiang, Yu Hu, Jule Xiao
Summary: This study reconstructs the changes in aeolian activity in western Mongolia since 14 ka by analyzing sediment grain size records from Tolbo Lake. The results suggest that intensified aeolian activity in the late Holocene is a response to stronger surface winds caused by increased spring insolation and mountain snow. Stable weak aeolian activity during the middle Holocene coincides with ice-rafting events in the North Atlantic and may be a response to warming at northern high latitudes, increased humidity, and vegetation coverage in western Mongolia.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geochemistry & Geophysics
Huihui Cao, Xiaozhong Huang, Lixiong Xiang
Summary: Radiocarbon (C-14) dating of lacustrine sediments is influenced by C-14 reservoir effect, resulting in systematically older ages. This study investigated the temporal changes of the C-14 reservoir effect in Lake Kanas sediments and found that the reservoir ages progressively increased from approximately 0 to 2800 years between 9700 and 530 cal BP. Soil erosion, caused by increased precipitation during the mid-to-late Holocene and anthropogenic forest clearance, was identified as the major factor contributing to the increase in reservoir age.
Article
Geosciences, Multidisciplinary
Jun Zhang, Sisi Liu, Mingrui Qiang, Yingyu Chen, Shengrui Zhang, Bo Cheng, Xiaoduo Pan, Yuan Li, Xiaozhong Huang
Summary: This study examined the pollen record from a lake on the Tibetan Plateau and found that there were opposite changes in vegetation and effective moisture between the mountainous and basin areas. The results suggest that both natural and human factors may have contributed to vegetation changes in the region.
Article
Geography, Physical
Dongliang Zhang, Tatiana A. Blyakharchuk, Elena V. Bezrukova, Xiaozhong Huang, Chengbang An, Chenjie Su, Yuejing Li
Summary: In this study, we calculated the rates of vegetation composition changes (RoCs) in the Central Arid Zone of Asia during the Holocene using 46 pollen records. We also examined the importance of six drivers (temperature, precipitation, CO2 concentration, fire, pasture, and cropland activities) using Structural Equation Modeling (SEM). The results showed that RoCs at high elevations had high values in the early Holocene, decreased to their lowest values at -6000 cal. yr BP, gradually increased between -6000 and -3000 cal. yr BP, abruptly decreased in the past 3000 years, and then resumed an upward trend. RoCs at lower elevations experienced a steady acceleration throughout the Holocene, possibly due to climate cooling and wetting, as well as intensified fire activities.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geography, Physical
Tao Wang, Xiaozhong Huang, Jun Zhang, Derui Luo, Min Zheng, Lixiong Xiang, Mingjie Sun, Xiuxiu Ren, Yuanhao Sun, Shengrui Zhang
Summary: This study reconstructs the long-term changes in vegetation cover on the northeastern Qinghai-Tibet Plateau using a pollen record from Luanhaizi Lake. The findings show that the vegetation in this region was alpine tundra during the late Marine Isotope Stage 3 and changed to alpine steppe, shrub, and sparse forest during the last deglaciation. The Holocene was dominated by alpine steppe and meadow, with sparse forest in lower elevations. The reconstructions also suggest that changes in insolation and monsoonal precipitation played a significant role in shaping the vegetation cover.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Multidisciplinary Sciences
Lixiong Xiang, Xiaozhong Huang, Mingjie Sun, Virginia N. Panizzo, Chong Huang, Min Zheng, Xuemei Chen, Fahu Chen
Summary: This study reconstructed the climate history of the Altai Mountain region during the middle to late Holocene by analyzing sediments from Kanas Lake and neighboring Tiewaike Lake. The results showed that the warm climate during 6.5-3.6 kyr promoted human migration and cultural exchange during the Bronze Age.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Gajendran Chellaiah, Ramamoorthy Ayyamperumal, Basker Rengaraj, Gnanachandrasamy Gopalakrishnan, Venkatramanan Senapathi, Chengjun Zhang, Xiaozhong Huang
Summary: This research develops metrics for groundwater quality assessment using a multi-proxy approach. The study collected and analyzed groundwater samples from Tamirabarani river basin, comparing them with national and international standards. The results show higher concentrations of calcium and chloride ions, possibly due to regional point sources and agricultural practices. Principal component analysis indicates that the post-monsoon season explains a significant proportion of the variance. The dominance of certain anions and cations suggests significant degradation of groundwater quality in the region, resulting from urban pollutants and unprotected river sites.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Furong Li, Marie-Jose Gaillard, Xianyong Cao, Ulrike Herzschuh, Shinya Sugita, Jian Ni, Yan Zhao, Chengbang An, Xiaozhong Huang, Yu Li, Hongyan Liu, Aizhi Sun, Yifeng Yao
Summary: This study presents the first gridded and temporally continuous quantitative pollen-based plant-cover reconstruction for temperate and northern subtropical China over the Holocene. The dataset provides valuable information for palaeoclimate modelling and assessing past vegetation cover. The dataset includes estimates of plant cover and standard errors for 27 plant taxa in the study region.
EARTH SYSTEM SCIENCE DATA
(2023)
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)