Article
Geosciences, Multidisciplinary
Wang Xu, Nigel C. Hughes, Lishuang Liu, Wen Zhang, Pinghua Liu
Summary: This study uses large sample zircon age data and mixing modeling method to investigate the paleogeographic position of the Lhasa terrane. The results suggest that during the Permo-Carboniferous, the Lhasa terrane received sediment from northwest Australia, aligning with stratigraphic and paleontological evidence from the northern margin of eastern Gondwana. The study highlights the effectiveness of the DZ mixing modeling method in constraining paleogeographic reconstruction.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Chaoming Xie, Menglong Duan, Yuhang Song, Bin Wang
Summary: The study on the Tangjia-Sumdo metamorphic belt reveals the timing and sediment sources of the Sumdo Formation, suggesting it mainly formed during the late Carboniferous-early Permian and sourced from the North Lhasa Block.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Weiwei Xue, Xiumian Hu, Eduardo Garzanti, Anlin Ma, Wen Lai, Chao Li
Summary: Detrital zircon data from the Tibetan Plateau were analyzed using a new method that identified distinct detrital-zircon age facies in different geological domains. The study successfully distinguished source regions and provided insights into the provenance of sedimentary units in diverse geological terranes. The combination of detrital-zircon age facies and multidimensional scaling methods proved to be an effective approach for provenance analysis.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Bruno Ribeiro, Frederico M. Faleiros, Ginaldo A. C. Campanha, Peter A. Cawood, Christopher L. Kirkland, Milo Barham, Erin L. Martin, Marina Seraine, Dina I. G. Cabrita, Maria T. A. G. Yogi, Vidya V. Almeida, Anny J. A. Forero-Ortega, Elton L. Dantas
Summary: New and compiled detrital zircon U-Pb ages from the southern Neoproterozoic-Cambrian Ribeira Belt, SE Brazil, indicate a distinct affinity of the Embu Terrane compared to the Apial and Sao Roque terranes, supporting an allochthonous interpretation. The detrital zircon age spectra reveal a greater affinity of the Embu Terrane with SW Laurentia basins, suggesting its origin through collision with the Ribeira Belt during the early Neoproterozoic.
GEOSCIENCE FRONTIERS
(2023)
Article
Geochemistry & Geophysics
Li-Ran Chen, Wang-Chun Xu, Hong-Fei Zhang, Jing-Liang Guo, Bi-Ji Luo
Summary: In this study, new U-Pb isotopic analyses on detrital zircons from Late Paleozoic metasedimentary rocks in the eastern end of the Lhasa terrane were conducted to investigate the origin and characteristics of the terrane. The results suggest a strong affinity between the Lhasa terrane and Indian Gondwana during the Paleozoic, with tectonic activity and climatic variation playing important roles in the detrital zircon record.
Article
Geosciences, Multidisciplinary
Xiaolong Dong, Xiumian Hu, Eduardo Garzanti, Wendong Liang, Guangwei Li, Wen Lai, Chengshan Wang, Zhongpeng Han, Tao Deng, Zhengchen Li
Summary: The Namche Barwa Syntaxis (NBS) is a highly productive detrital factory that supplies large amounts of sediment to the Brahmaputra River. This study analyzes petrographic and heavy-mineral data from sand samples collected in the Yarlung and Parlung river catchments, finding that the majority of sediments downstream of the NBS are produced in the Yarlung and Parlung gorges. The gorges, which cover only 1% of the Yarlung-Brahmaputra catchment area, contribute significantly to the total sediment flux of the Brahmaputra River.
Article
Geochemistry & Geophysics
Muhammad Qasim, Javed Iqbal Tanoli, Luqman Ahmad, Lin Ding, Qasim Ur Rehman, Umbreen Umber
Summary: This study conducted a detrital zircon provenance investigation of sandstones from the Kamlial Formation in the Kashmir Basin, revealing a dominant age population around 400-1200 Ma and a minor population around 1600-1900 Ma, with scattered ages between 2000 and 3000 Ma. The presence of younger ages (<150 Ma) in the samples indicates an Asian provenance. The age pattern of detrital zircons strongly resembles Himalayan sources, suggesting a mixed provenance for the Kamlial Formation. The study also proposes a tectonic model involving large-scale exhumation in the Himalaya due to Panjal thrust activation during the deposition of the Kamlial Formation.
Article
Geosciences, Multidisciplinary
Qing Wang, Di-Cheng Zhu, Peter A. Cawood, Sun-Lin Chung, Zhi-Dan Zhao
Summary: By analyzing the detrital zircon U-Pb age spectra and epsilon(Hf)(t) values of the glaciogenic diamictites (PCGDs) in different regions, it is found that the PCGDs in Lhasa have a different source from those in Southern Qiangtang and Tethyan Himalaya. The research suggests that the Lhasa PCGDs may have originated from Australia, while the PCGDs in Southern Qiangtang and Tethyan Himalaya may have come from India.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geochemistry & Geophysics
Qiong-Xia Xia, Yi-Xiang Chen, Ren-Xu Chen, Yong-Fei Zheng
Summary: The elevated Hf isotope compositions of peritectic zircons in anatectic granites do not accurately reflect the Hf isotope composition of parental rocks, due to the decomposed minerals with high Lu/Hf ratios during crustal anatexis. Care must be taken when using Hf isotope ratios to trace the nature of parental rocks with respect to magmatic processes and crustal evolution.
Article
Geosciences, Multidisciplinary
Myo Min, Lothar Ratschbacher, Leander Franz, Bradley R. Hacker, Eva Enkelmann, Eko Yoan Toreno, Birk Haertel, Bernd Schurr, Marion Tichomirowa, Joerg A. Pfaender
Summary: In this study, lithologic tracers and data on pressure, temperature, deformation, and time were used to investigate the geological events that occurred in the Katha Range of central Myanmar. The researchers found Cambro-Ordovician rocks with Indian affinity, which are related to rocks in Tibet and the Himalayas. The study also revealed the metamorphism, exhumation/cooling, and tectonic processes of collision and subduction in the region.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Review
Geosciences, Multidisciplinary
John W. F. Waldron, Phil J. A. McCausland, Sandra M. Barr, David I. Schofield, Doug Reusch, Lei Wu
Summary: The study of the Iapetus Ocean's history is important for understanding the relationship between orogeny and plate motion. Research shows that the Iapetus Ocean consisted of several terranes that moved and rotated over time due to plate tectonics. Studying these terranes can provide insights into the origin, motion, and evolution of the crust.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Ling Zhang, Shiming Liang, Xiaoping Yang, Weijun Gan, Chenglong Dai
Summary: The KJFZ is considered the southernmost major fault in the Tibetan plateau's strike-slip fault system, but the strike-slip rates are still debated. New GPS measurements show different dextral strike-slip rates for different parts of the Jiali fault.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Yanling Zhang, Changqing Yin, Donald W. Davis, Shun Li, Jiahui Qian, Jian Zhang, Peng Gao, Shangjing Wu, Wangchao Li, Yanfei Xia
Summary: This study presents an integrated study of Late Cretaceous, high-pressure, garnet-bearing amphibolites from the Nyingchi Complex of the Eastern Himalayan Syntaxis. The results indicate a three-stage metamorphic process and a near-isothermal decompression path for garnet-bearing amphibolites, with the formation of garnet-bearing amphibolites occurring at 90 Ma. These findings provide important insights into the tectonic evolution and crustal thickening of the Gangdese belt.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2023)
Article
Geography, Physical
Junjie Shen, Hong Chang, Hongzhi Tu, Chong Guan, Leyi Li
Summary: By analyzing the detrital zircon U-Pb ages in sediment samples from rivers in the Eastern Pamir Syntaxis, it was found that the uplift rates and sources of the Pamir region varied temporally and spatially. The main source of quartzose clastic sediments in these rivers was determined to be Cretaceous rocks, while Miocene rocks also made a considerable contribution. Additionally, significant age modes were observed at 200-300 Ma and 600-800 Ma, and the characteristics of detrital zircon U-Pb ages in rivers changed gradually from south to north.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Michael Steiner, Simon V. Hohl, Ben Yang, Xiangtong Huang, Da Li
Summary: Through the analysis of animal fossil assemblages and detrital zircons, the study revealed the paleogeography of major Mongolian terrains and identified a new fauna from the Telmen Block. The results challenge the traditional view that these cratons were assembled in a single ribbon-shaped paleocontinent during the Ediacaran/Cambrian periods.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Geology
Thomas Hopkinson, Nigel Harris, Nick M. W. Roberts, Clare J. Warren, Sam Hammond, Christopher J. Spencer, Randall R. Parrish
Article
Geochemistry & Geophysics
Liang Guo, Hong-Fei Zhang, Nigel Harris, Bi-Ji Luo, Wen Zhang, Wang-Chun Xu
Article
Geochemistry & Geophysics
Liang Guo, Oliver Jagoutz, William J. Shinevar, Hong-Fei Zhang
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
(2020)
Article
Multidisciplinary Sciences
James R. Thomson, Philip B. Holden, Pallavi Anand, Neil R. Edwards, Cecile A. Porchier, Nigel B. W. Harris
Summary: The study reconstructed the evolution of monsoon systems in the past 30 million years using models, revealing the different drivers influencing the Asian monsoon and South East Asian monsoon. It shows that the Indian summer monsoon evolution is more complex compared to the South East Asian monsoon, with a combination of factors controlling its strength.
NATURE COMMUNICATIONS
(2021)
Article
Geochemistry & Geophysics
Qingshang Shi, Yongsheng He, Zhidan Zhao, Dong Liu, Nigel Harris, Di-Cheng Zhu
Summary: The study presents Fe isotopic data of Himalayan leucogranites to investigate their petrogenesis, suggesting that they are likely formed from partial melting of the crust rather than high degree of fractional crystallization. The elevated Fe isotopic values in most leucogranites compared to the supposed source rocks indicate possible Fe isotope fractionation during crustal anatexis. This study provides insights into the conditions of crustal anatexis and the thermal and tectonic evolution of the Himalayan orogen.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geochemistry & Geophysics
Samuel Bewick, Ian J. Parkinson, Nigel Harris, Shota Adamia, Nino Sadradze, Mark B. Allen, Sam Hammond
Summary: This study presents geochemical data of Quaternary volcanic rocks from the Greater Caucasus region of Georgia, indicating their sources, evolution, and formation mechanisms. The results suggest that these lavas have supra-subduction zone signatures, likely derived from a lithospheric source that had been modified by subduction before and during the collision event.
JOURNAL OF PETROLOGY
(2022)
Article
Geology
Barbara E. Kunz, Clare J. Warren, Frances E. Jenner, Nigel B. W. Harris, Tom W. Argles
Summary: This study investigates the enrichment mechanism of metals such as Li, Be, V, Co, Nb, In, Cs, Sn, Ta, and W in metamorphic processes. By analyzing muscovite and biotite from metasediment-hosted samples, the study reveals the preferential incorporation of these metals into mica minerals and their release during crustal melting. The findings highlight the importance of higher-temperature melting, particularly biotite breakdown reactions, for the mobilization of these critical metals.
Article
Geochemistry & Geophysics
Ke Lai, Liang Guo, Hong-Fei Zhang, Yun-Xuan Zhang, Shi-Qing Wang
Summary: This study investigates the Nyemo Igneous Complex (NIC) in the central Gangdese arc, southern Tibet through detailed field and petrographic observations, geochronology, and geochemistry. The results show that the NIC is composed of various rock types formed at a specific time period and has a high Sr/Y ratio. Petrographic observations and geochemical data indicate that the diverse lithologies of the NIC can be explained by a co-genetic magma fractionation sequence.
Article
Geochemistry & Geophysics
Stacy E. E. Phillips, Tom W. W. Argles, Clare J. J. Warren, Nigel B. W. Harris, Barbara E. E. Kunz
Summary: The morphology, cathodoluminescence response and trace element composition of kyanite in migmatite from Eastern Bhutan were studied to distinguish between sub-solidus kyanite and kyanite crystallized directly from partial melt. The findings have significant implications for the interpretation of kyanite-bearing migmatites as representing early stages of melting during Himalayan evolution.
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
(2023)
Article
Geosciences, Multidisciplinary
Yunxuan Zhang, Liang Guo, Hongfei Zhang, Nigel Harris, Wangchun Xu, Zhenbing She, Tao Luo
Summary: By studying detrital zircon and monazite from modern stream sediments in the eastern Himalayan syntaxis, the metamorphic history of the region was revealed. The results suggest that the initial India-Asia collision occurred no later than 50-44 Ma and the Indian continent underwent multiple episodes of compression and metamorphism.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2023)
Article
Geochemistry & Geophysics
Dan-Dan Cui, Jing-Liang Guo, William J. Shinevar, Liang Guo, Wang-Chun Xu, Hong-Fei Zhang, Zhen-Min Jin
Summary: The chemical composition of the deep continental crust is crucial for understanding its formation and evolution, but direct measurements are limited. This paper presents a modeling method to constrain deep crustal chemical structures based on observed seismic structures. By establishing functional relationships between seismic wave speed and major oxide content, the V-P of the deep crust can be inverted to obtain chemical compositions. The results from applying this method suggest that the mafic content in the lower crust is higher in subduction and rifting settings compared to platforms/shields and orogens. The obtained chemical structure can serve as a reference model for identifying deep crustal features.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geochemistry & Geophysics
Thomas N. Hopkinson, Nigel B. W. Harris, Clare J. Warren, Christopher J. Spencer, Nick M. W. Roberts, Matthew S. A. Horstwood, Randall R. Parrish
EARTH AND PLANETARY SCIENCE LETTERS
(2017)
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.