Article
Biology
Hansheng Cao, Liumei Hu, Zaiyun Wang, Wentong He, Fajin Chen, Qinghua Hou, Chunqing Chen
Summary: A well-preserved carbonate section at the southern margin of South China provides important insights into the environmental changes during the Devonian-Carboniferous transition. The isotopic data reveal significant anomalies in nitrogen, carbon, and sulfur compositions, indicating a major fluctuation in the marine redox conditions. The findings suggest that variations in sea level, paleoclimate, and ocean basin configuration were likely driving factors for the biotic extinction during this period.
Article
Geosciences, Multidisciplinary
Jingkun Zhang, Jian Cao, Wenxuan Hu, Dongming Zhi, Xuguang Guo, Baoli Bian
Summary: The study found large Carboniferous petroleum systems in the Central Asian Orogenic Belt, characterized by hydrocarbons sourced mainly from highly mature Carboniferous source rocks and promoted by subduction-related heat flow. Analysis of hydrocarbons in vein cements provides insights into a subduction-related Carboniferous petroleum system with significance for further petroleum exploration in orogenic belts.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Jian Wang, Yuping Su, Jianping Zheng, E. A. Belousova, Ming Chen, Hongkun Dai, Xiang Zhou
Summary: The study of early Carboniferous volcanic rocks in the Junggar Basin, NW China, reveals a bimodal suite of rocks dominated by basaltic and felsic rocks, possibly formed in a localized back-arc extension setting. The mafic rocks show arc-like trace-element distribution patterns, while the felsic rocks are geochemically equivalent to A(2)-type granite, indicating a derivation from the mafic magma by fractional crystallization.
Article
Geosciences, Multidisciplinary
Zhiguo Zhang, Xijun Liu, Wenjiao Xiao, Ji-Feng Xu, Yu Shi, Xiaohan Gong, Rongguo Hu, Pengde Liu, Yujia Song, Yao Xiao, Zhaoqi Zhang, Rui Li, Dechao Li
Summary: The study of Carboniferous magmatism in northern West Junggar reveals that the volcanic rocks from the Hamutusi area record the initiation of ridge subduction related to a transition from normal subduction to subduction of young and hot oceanic lithosphere between the early and late Carboniferous.
Article
Geology
Fang An, Yongfeng Zhu, Shaoni Wei, Hong Zhang, Lei Zhao
Summary: The study on the variation of crustal thickness in Late Palaeozoic central west Junggar orogenic belt reveals that the crust was thinner in the Early Carboniferous, followed by a gradual thickening and subsequent thinning process, influenced by subduction-related magmatism.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geology
Fenghao Duan, Yongjun Li, Qian Zhi
Summary: This study investigated six granitic plutons in the South West Junggar of northwest China and identified different types of granites, inferring their formation related to the subduction of the Junggar oceanic slab. Through geochemical characteristics and geochronological data, the study revealed the petrogenesis and tectonic evolution of Late Carboniferous to Early Permian rocks in the southwestern Central Asian Orogenic Belt.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geology
Rong Ren, Bo Liu, Bao-Fu Han, Shu-Wei Guan
Summary: This study reports for the first time the Early-Middle Devonian magmatism in the southern West Junggar terrane (WJT) and provides insights into the geological characteristics and formation mechanism. These findings are significant for understanding the tectonic evolution of the southwestern Central Asian Orogenic Belt.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Environmental Sciences
Liu Pengde, Liu Xijun, Xiao Wenjiao, Zhang Zhiguo, Song Yujia, Xiao Yao, Liu Lei, Hu Rongguo, Wang Baohua
Summary: The Early Carboniferous volcanic and intrusive rocks found in the Mayile area of West Junggar, northwestern China, are typical subduction-zone island-arc magma, characterized by enrichment in light rare-earth elements and large-ion lithophile elements, and depletion in heavy rare-earth elements and high-field-strength elements. This suggests that extensive intra-oceanic arc magmatism occurred in West Junggar during the Early Carboniferous period.
JOURNAL OF ARID LAND
(2021)
Article
Geochemistry & Geophysics
Qianru Cai, Zhihua Song, Guanlong Zhang, Jinduo Wang, Hongzhou Yu, Jian Zhou, Meiyuan Song, Xiaoyu Yuan
Summary: This study provides systematic geochemical and geochronological research of well-preserved drill cores from the Piedmont of the Hala'alate Mountain in West Junggar. The results show that the Late Carboniferous rocks belong to the A-type granite series and arc-affinity geochemical compositions, indicating a partial melting of juvenile continental materials and a modified pyroxene-rich mantle source. The tectonic processes of West Junggar during the Carboniferous to Early Permian can be divided into three stages: sustained subduction processes, closure of the oceanic crust and collision orogenesis, and post-collision extension setting.
Article
Geosciences, Multidisciplinary
Donghai Zhang, Baochun Huang, Guochun Zhao, Joseph G. Meert, Simon Williams, Jie Zhao, Tinghong Zhou
Summary: Research indicates that the northward motion of North China and Mongolia paralleled Laurussia from the Late Carboniferous to Early Permian, with the Paleo-Asian Ocean in the east-central segment having a width of about 2,700 km. This wide ocean impeded floral and faunal exchange until the Guadalupian, prior to its final closure by approximately 250 Ma.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geology
M. Hedhli, S. E. Grasby, C. M. Henderson, B. J. Davis
Summary: The Devonian-Carboniferous boundary (DCB) Hangenberg extinction in Europe, which is characterized by black shale deposition, has been considered a global anoxic event with uncertain cause. However, the absence of a significant global carbon isotope excursion and the long duration of anoxia do not support this hypothesis. By studying data from sections in western Canada, it has been determined that anoxic pulses in Laurentian seas started before 363 million years ago, which is consistent with the timing in Europe. Therefore, the black shales near the DCB do not represent a single global anoxic event, but rather multiple, diachronous Black Sea-like basins.
Article
Geochemistry & Geophysics
Jianfeng Liu, Jinyi Li, Wenlong Zhang, Jin Zhang, Shuo Zhao, Dongfang Yin, Xiaowei Zhang
Summary: The discovery of a Late Devonian ophiolite fragment in southeastern Inner Mongolia, along with previously reported Carboniferous ophiolites in the same region, confirms the existence of a Late Devonian-Carboniferous ocean basin that evolved into a basin during the Carboniferous period. The presence of a trench-arc-basin system during this time period in the southeastern Central Asian Orogenic Belt suggests the existence of a Late Devonian-Carboniferous orogenic belt. This tectonic configuration is similar to modern arc systems in the Pacific Ocean.
Article
Biodiversity Conservation
Carlo Corradini, Angelo Mossoni, Maria G. Corriga, Claudia Spalletta
Summary: In Sardinia, Italy, two sections at the southeastern part of the island display the Devonian/Carboniferous Boundary, showing a limestone sequence from the middle Famennian to the lower Tournaisian Siphonodella jii Zone, with a thin level of shales representing the Hangenberg Event. Data on conodont biostratigraphy and magnetic susceptibility across this boundary are summarized and reviewed.
PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS
(2021)
Article
Geochemistry & Geophysics
Pengde Liu, Xijun Liu, Wenjiao Xiao, Zhiguo Zhang, Yao Xiao, Yujia Song, Hao Wu
Summary: Magnesian and/or Nb-rich dioritic-andesitic rocks have been found in the Mayile area of southern West Junggar, Northwest China. This study conducted a comprehensive investigation to understand the origin, mantle source, and tectonomagmatic processes in the southern Paleo-Asian Ocean subduction zone. The results suggest that the Mayile rocks formed in the Late Carboniferous and experienced high-temperature and shallow-level partial melting in a mantle wedge. These rocks exhibit characteristics of sanukitic high-Mg andesites and provide insights into the subduction history and tectonic evolution in the region.
Article
Geochemistry & Geophysics
Yan-Jun Wang, Wei-Guang Zhu, Hui-Qing Huang, Zheng-Wei Zhang, Peng-Cheng Hu, Cheng-Quan Wu, Jin-Hong Xu, Cheng-Biao Leng
Summary: The Oytag pluton in the West Kunlun orogenic belt of China is a rare exposed Carboniferous granitoid associated with the early-stage evolution of the Paleo-Tethys Ocean, and its origin is controversial. New zircon U-Pb data suggest that the trondhjemite in the Oytag pluton was emplaced slightly earlier than the tonalite. Both trondhjemite and tonalite show positive whole-rock Nd isotopic compositions, indicating the addition of <10% crustal contaminants during assimilation and fractional crystallization processes. The zircons from trondhjemite and tonalite exhibit different trace elements and internal structures, suggesting distinct differentiation processes for their parental melts.
Article
Geography, Physical
Carlo Corradini, Maria G. Corriga, Monica Pondrelli, Thomas J. Suttner
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2020)
Article
Geography, Physical
T. J. Suttner, E. Kido, Ya. Ariunchimeg, G. Sersmaa, J. A. Waters, S. K. Carmichael, C. J. Batchelor, M. Ariuntogos, A. Huskova, L. Slavik, J. I. Valenzuela-Rios, J. -C. Liao, Y. A. Gatovsky
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2020)
Article
Geography, Physical
Olivia Paschall, Sarah K. Carmichael, Peter Koenigshof, Johnny A. Waters, Phuong H. Ta, Toshifumi Komatsu, Allison Dombrowski
GLOBAL AND PLANETARY CHANGE
(2019)
Review
Geography, Physical
Sarah K. Carmichael, Johnny A. Waters, Peter Koenigshof, Thomas J. Suttner, Erika Kido
GLOBAL AND PLANETARY CHANGE
(2019)
Article
Paleontology
Thomas J. Suttner, Erika Kido
Article
Geosciences, Multidisciplinary
Stanislava Vodrazkova, Thomas J. Suttner
BULLETIN OF GEOSCIENCES
(2020)
Article
Biodiversity Conservation
A. Nazik, P. Konigshof, M. Ariuntogos, J. A. Waters, S. K. Carmichael
Summary: An Upper Devonian to (?)Lower Mississippian section in the Baruunhuurai Terrane of the CAOB was investigated, revealing a well-preserved and diverse ostracod fauna. The Mongolian ostracod fauna shows similarities to coeval faunas in western China and Laurussia, but also includes new, endemic species.
PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS
(2021)
Article
Geosciences, Multidisciplinary
R. J. Bertle, T. J. Suttner
Summary: The Lower Cretaceous marine deposits of the Himachal Himalaya are studied in the Giumal Formation in Spiti Valley. A specific section near Chikkim shows a complete succession with preserved lithostratigraphic boundaries. The sedimentary unit in Spiti is discussed in view of coeval sedimentary sequences in the Late Jurassic and Cretaceous time slice in the Indian Craton.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Multidisciplinary Sciences
Thomas J. Suttner, Erika Kido, Michael M. Joachimski, Stanislava Vodrazkova, Monica Pondrelli, Carlo Corradini, Maria G. Corriga, Luca Simonetto, Michal Kubajko
Summary: The Middle Devonian Kacak Episode was a short-lived period of marine dys-/anoxia associated with climate warming. New oxygen isotope data from the Carnic Alps (Austria, Italy) and the Prague Synform (Czech Republic) suggest that sea surface temperatures in the southern hemisphere low latitudes during this time were approximately 6 degrees Celsius higher than previously assumed.
SCIENTIFIC REPORTS
(2021)
Article
Geosciences, Multidisciplinary
Bin Zhang, Jiaqi Liu, Wen Chen, Zhiliang Zhang, Li Yang, Lei Zhang, Zeyang Zhu, Chunqing Sun, Zhihao Sun
Summary: The eastern Tibetan Plateau is a region with unique topography and active tectonics, making it crucial for studying geodynamics and lithosphere-atmosphere interaction. By integrating new and reported thermochronological data, as well as paleo-crustal thickness reconstruction, this study sheds light on the tectonic deformation, climate-tectonic coupling, and geodynamics of the area.
Article
Geosciences, Multidisciplinary
Zhenhua Tian, Shangwen Zhou, Songtao Wu, Sai Xu, Junping Zhou, Jianchao Cai
Summary: This paper presents a modified method for calculating the lost gas content of shale by analyzing the coring and on-site desorption processes. The method accurately depicts the loss characteristics of free and adsorbed gas and identifies parameters that influence the calculation of in-situ shale gas content. The results demonstrate that the method shows satisfactory applicability in gas loss curve prediction and in-situ gas content estimation.
Article
Geosciences, Multidisciplinary
Pengcheng Li, Jaffar Abbas, Daniel Balsalobre-Lorente, Qingren Wang, Qianxiao Zhang, Syed Ale Raza Shah
Summary: This study explores the factors contributing to sustainability in Pakistan from 1974 to 2018 and finds that emissions from industrial and agriculture sectors have significantly decreased, while the financial sector has not effectively reduced environmental pressure. Therefore, Pakistan needs to adjust its economic policies and ensure the green allocation of financial resources.
Article
Geosciences, Multidisciplinary
Shi Zhou, Ting Zhou, Duo Guan, Yong Yao, Huimin Sun, Ahmed Ali Mosa, Yajie Zuo, Xianqiang Yin
Summary: Graphitic carbon nitride (g-C3N4) has been widely used due to its excellent optical properties and physicochemical stability. The risk of g-C3N4 transport in the environment has been overlooked, but this study investigated its transport behavior in various media. The results showed that flow rate and ionic strength influenced the transport, and the presence of lead (Pb) affected the outflow of g-C3N4. The unique structure of g-C3N4 particles allowed them to deposit in certain media and act as carriers for Pb release.
Article
Geosciences, Multidisciplinary
Xiaolong Qiao, Muntasir Murshed, Mohammad Mahtab Alam, Narasingha Das, Kurshid Khudoykulov, Salman Tariq
Summary: This study examines how macroeconomic factors influence India's carbon emission intensity levels and confirms the impact of factors such as foreign remittance receipts, energy consumption, urbanization, and technological progress. The findings provide policy recommendations for India's carbon emission reduction targets.
Article
Geosciences, Multidisciplinary
Wei Liu, Bo Wan
Summary: Magmatic-hydrothermal systems play a crucial role in transporting materials and potentially affecting Earth's long-term environment. This study investigates the duration of prograde metamorphism induced by fluid infiltration and the amount of carbon released by skarn ore deposits. The findings reveal that skarn ore deposits can efficiently decarbonize CO2 at a high rate, surpassing volcanism in different tectonic settings. The CO2 flux of skarn deposits increases over time and reaches a maximum value at the J/K boundary, providing an important previously unquantified source of outgassing in the subduction zone.
Article
Geosciences, Multidisciplinary
Haikuan Nie, Pei Li, Qing Chen, Zhijun Jin, Quanyou Liu, Wei Dang, Qian Chen, Jianghui Ding, Changbo Zhai
Summary: This study investigates the shale quality and shale gas potential in the upper Ordovician to lower Silurian formations in the Sichuan Basin of southern China. The distribution and characteristics of organic-rich shale are analyzed, aiding in the assessment of shale gas potential and identification of sweet spots.
Article
Geosciences, Multidisciplinary
Najia Saqib, Shujaat Abbas, Ilhan Ozturk, Muntasir Murshed, Malgorzata Tarczynska-Luniewska, Mohammad Mahtab Alam, Waldemar Tarczynski
Summary: This study examines the impact of economic growth, financial development, eco-friendly ICT, renewable energy, and human capital on lowering carbon footprint in the world's top polluting economies from 1993 to 2020. The findings suggest that eco-friendly ICT has the potential to effectively alleviate pollution, and financial development, renewable energy, and environmental technology are proposed as potential solutions for reducing carbon emissions.
Article
Geosciences, Multidisciplinary
Hikmat Salam, Syed Ali Turab, Asghar Ali, M. Qasim Jan, Norasiah Sulaiman, Mohd Basril Iswadi Basori
Summary: The Kahi melange complex in NW Pakistan is an important record of the tectonic evolution between the Indian plate and the Afghan block, consisting of highly dismembered ophiolitic and sedimentary units.
Article
Geosciences, Multidisciplinary
Er-Kun Xue, Wei Wang, David Chew, Manoj K. Pandit, Xin Deng, Yang Tian, Xi-Run Tong, Jun-Hong Zhao
Summary: The study reveals the presence of water-fluxed melting during the Wuyi-Yunkai Orogeny in South China. These water-fluxed melting quartzo-feldspathic migmatites formed during the early Paleozoic and were melted through reactions involving water-saturated quartz, feldspar, biotite, and K-feldspar. The findings highlight the significance of water-fluxed anatexis in the differentiation of the continental crust during orogenesis.
Article
Geosciences, Multidisciplinary
Hadi Shafaii Moghadam, Qiu-Li Li, William L. Griffin, Xian-Hua Li, Orhan Karsli, Christopher J. Spencer, Jose F. Santos, Maria Kirchenbaur, Sobhi Nasir, Suzanne Y. O'Reilly
Summary: Understanding the crustal growth, reworking, and geodynamics of the northern continental margin of Gondwana during the Ediacaran to Silurian times is crucial for the paleogeographic reconstruction of Gondwana. This study uses various analytical methods to evaluate the magmatic history of this region and obtain relevant detrital zircon data. The results provide valuable insights into the crustal evolution and tectonic activities in the northern Gondwana region.
Article
Geosciences, Multidisciplinary
Laura Petrescu, Felix Borleanu, Emanuel Kaestle, Randell Stephenson, Anica Placinta, Oleksandr Ivanovich Liashchuk
Summary: This study investigates the seismic structure of the Eastern European lithosphere and the transition from Precambrian to Phanerozoic Europe. The results show that the crust thickens across the Trans European Suture Zone boundary and the mantle is seismically faster beneath younger terranes. The Precambrian building blocks exhibit contrasting seismic fabrics, with the Baltic orogens characterized by uniform crust and the Sarmatia region showing alternating high and low velocity layers.
Article
Geosciences, Multidisciplinary
Dongya Zou, Hongfu Zhang
Summary: This study analyzes the U-Pb-Hf-O isotopes of zircons in felsic granulite xenoliths from the Fuxin late Cretaceous basalts in the North China Craton to evaluate the role of magma underplating in modifying the Archean lower crust. The results show that long-lived magma underplating occurred beneath the Fuxin region during the Mesozoic, with underplated magmas originating from the lithospheric mantle and later from the depleted asthenospheric mantle. This study concludes that magma underplating not only provided heat for remelting, but also added exotic material and weakened the lower crust, leading to its destruction.
Article
Geosciences, Multidisciplinary
Yu Han, Yingchang Cao, Chao Liang, Keyu Liu, Fang Hao
Summary: A paleoclimate reconstruction based on high-resolution records from lacustrine shale in the Bohai Bay Basin reveals a shift in orbital variability and a humidification event at -41.9 Ma in East Asia. The intensification of the East Asian monsoons at this time was likely a response to the elevated atmospheric pCO2 during the concurrent global warming.
Article
Geosciences, Multidisciplinary
Francesca Innocenzi, Sara Ronca, Stephen Foley, Samuele Agostini, Michele Lustrino
Summary: This study investigates two volcanic provinces in the western branch of the East African Rift and finds that the volcanic products show wide variability in chemical and mineralogical characteristics. Petrographic and geochemical analysis reveals enriched and heterogeneous sub-lithospheric mantle sources. The differences in isotopic features between the two volcanic provinces may indicate changes in the composition, mineralogy, and depth of melting in the lithospheric mantle source.
