Article
Geosciences, Multidisciplinary
Min Gao, Zhen-Jie Zhang, Qiu-Ming Cheng, Djordje Grujic
Summary: The Huai'an Complex in the North China Craton consists of TTG gneisses and granite intrusive bodies. Zircon U-Pb ages reveal three episodes of magmatism from 2.6-2.3 Ga, 2.0-1.7 Ga, and similar ages around 2.3-2.0 Ga, indicating different magma sources. The complex underwent crustal growth and reworking stages from 3.1-2.5 Ga to 1.95-1.7 Ga, with tectonic processes of compression-extension-compression during 2.6-1.7 Ga.
Article
Geology
Tao Wu, Yaqin Luo, Kongyang Zhu, Qinglong Lin, Yan Zhang, Zilong Li
Summary: This study presents new zircon ages and Lu-Hf isotopes of felsic volcanic rocks in southeastern Zhejiang Province, revealing their petrogenesis and tectonic background. The distribution of volcanic rocks in the province is found to be correlated with time and juvenile components in the source region. The results support the episodic roll-back of the Palaeo-Pacific plate model and refute the hypothesis of a large volume eruption over a short interval of time.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geosciences, Multidisciplinary
Meiling Wu, Shoufa Lin, Yusheng Wan, Jian-Feng Gao, Richard A. Stern
Summary: The study of the Southern Jilin Complex using high-precision in-situ zircon U-Pb-Hf-O isotopes reveals three episodes of magmatism at around 2.78, 2.69, and 2.55 billion years ago, with magma sources mainly derived from crustal reworking and minimal sediment recycling. The findings suggest a bottom-up geodynamic regime in the region during the Neoarchean, possibly related to plume activities, rather than involving modern-style subduction.
PRECAMBRIAN RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
He Zhang, Jun He, Yan-Chen Li, Guang-Hui Wu, Hong Cheng, Fukun Chen
Summary: The U-Pb ages and Hf isotopic compositions of detrital zircon, as well as the geochemical characteristics of whole rock, from Precambrian paragneiss in the Foping complex were studied in this research. The results suggest that the paragneiss samples were mainly derived from felsic rocks in a continental arc environment. The U-Pb ages of the detrital zircon show concentrations around two major peaks at -850 Ma and -700 Ma, as well as two minor peaks at -2500 Ma and -2000 Ma, with variable εHf(t) values ranging from -26.0 to +12.4. The Neoproterozoic ages of the detrital zircon grains in the Foping dome are similar to those of Neoproterozoic igneous rocks in South Qinling and the Yangtze Block. This study suggests a crustal growth in the early Neoproterozoic (ca. 1000-900 Ma) in South Qinling, possibly caused by intra-oceanic subduction along the northern margin of the Yangtze Block, followed by reworking of the ancient crust attributed to a tectonic shift from an island-arc setting to a continental arc environment at ca. 900-860 Ma. The extensive formation of igneous rocks in the continental arc provided the main source for the Precambrian paragneisses in the Foping dome.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Xiaoping Liu, Huichuan Liu, Pin Gao, Wenqi Li, Huan Liu, Jiakai Hou
Summary: The Late Neoarchean-Paleoproterozoic period marked a significant time of continental growth and recycling, with the assembly and subsequent breakup of the Columbia supercontinent. The North China Craton preserves important records of tectonic activities and crust building processes during this time. The study findings suggest significant juvenile crust accretion in the Yanliao intracontinental rift during the Neoarchean and Paleoproterozoic periods.
Article
Geology
Pham Trung Hieu, Wang Xiao Lei, Pham Minh, Nguyen Thi Bich Thuy, Le Duc Phuc, Nguyen Dinh Luyen
Summary: In this study, we investigated the Mesoarchean-Paleoproterozoic igneous rocks in the Phan Si Pan zone of NW Vietnam using zircon U-Pb geochronology, Sr-Nd-Hf isotopes, and whole-rock geochemistry. The results show that the magmatism in the area can be divided into three phases, representing Mesoarchean and Paleoproterozoic periods. The isotopic characteristics of the rocks indicate their origins from partial melting of ancient crustal rocks or mantle components.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Geochemistry & Geophysics
Anirban Mitra, Sukanta Dey, Pranab Das, Keqing Zong, Yongsheng Liu
Summary: Through the study of whole-rock geochemistry, detrital zircon U-Pb-Hf isotopes, and trace element data from Mesoarchean clastic rocks in two greenstone belts of the western Dharwar Craton, it is found that these rocks were derived from a strongly weathered stable continental provenance dominated by low-HREE TTGs and K-rich granites of shallow crustal origin. The detrital zircon U-Pb and Lu-Hf data indicate two major crust formation events, with the antiquity of the western Dharwar Craton traced back to at least 3.8 Ga. The detrital record suggests episodic crustal growth and reworking in the western Dharwar Craton during the Paleoarchean to early Mesoarchean period, possibly related to intraplate processes.
Article
Geochemistry & Geophysics
J. W. D. Strong, P. A. Cawood, A. R. Cruden, O. Nebel, J. Mulder, A. P. Dickin
Summary: The Winnipeg River terrane, one of the oldest plutonic-gneiss terranes in the Archean Superior Province, plays a crucial role in understanding the evolution of Earth's largest Archean craton. The study evaluates the evolution of this terrane using various isotope data, revealing important information about rock crystallization and crustal recycling.
Article
Geosciences, Multidisciplinary
Augustin Y. Koffi, Nicolas Thebaud, Alain N. Kouamelan, Lenka Baratoux, Olivier Bruguier, Olivier Vanderhaeghe, Pavel Pitra, Anthony I. S. Kemp, Noreen J. Evans
Summary: The crustal evolution in the south West African Craton was influenced by juvenile material input around 2.1 Ga, and the impact of pre-existing Archean crustal domains on the Paleoproterozoic continental mass remains unclear. The Sassandra-Cavally (SASCA) domain, located in Cote d'Ivoire, provides valuable insights into the transition between the Archean and Paleoproterozoic terranes. Zircon grains extracted from migmatitic gneisses, metasedimentary rocks, and a granitic intrusion underwent U-Pb and Lu-Hf isotopic analyses using LA-(MC-)ICP-MS. The results suggest that the migmatitic gneisses were derived from the mantle during the Paleoarchean and underwent substantial reworking in the Mesoarchean, while the metasedimentary units contain detrital zircon grains with Paleoproterozoic ages, indicating a juvenile source. The intrusion exhibits a hybrid isotopic signature, suggesting a complex geological history.
PRECAMBRIAN RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Dov Avigad, Avishai Abbo, Axel Gerdes, Axel K. Schmitt
Summary: The study focuses on detrital zircon from the black sand of the Rhone River delta in southern France, which provides important insights into the major episodes of European magmatism. The results show that the black sand samples represent magmatic events at 0.55 Ga (Cadomian), 0.45 Ga (Cenerian), and 0.31 Ga (Variscan). The Hf isotopes in the zircon suggest the involvement of continuous crustal reworking during European magmatic episodes. However, the oxygen isotope analysis indicates the presence of a significant sedimentary component in the genesis of European granitoids. The study concludes that the prevalent Hf-T-DM ages obtained are mixed and do not confirm the reworking of Mesoproterozoic crust in the region.
Article
Geochemistry & Geophysics
Hao Wang, Jin-Hui Yang, Yu-Sheng Zhu, Chao Huang, Lei Xu, Shi-Tou Wu, Yu Liu
Summary: The detrital zircons in the Moodies sandstones from the Barberton and Swaziland regions in southern Africa were analyzed to understand the growth and differentiation of continental crust during the Archean. The results show that the detrital zircons originated from older volcanic rocks and granitoid gneisses in the region. The inferred compositions of the source magmas conflict with the actual source rocks, indicating a need for reevaluation. The U-Pb age data of detrital zircons in modern river sands suggest the dominance of tonalitic, trondhjemitic, and granodioritic gneisses without Eoarchean crust in southwestern Swaziland. The study reveals major magmatic episodes and suggests that plate tectonic processes may not have been necessary for crustal growth and reworking in the region.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geosciences, Multidisciplinary
Parampreet Kaur, Armin Zeh, Naveen Chaudhri, Prabhakar Dutta
Summary: The inconsistent stratigraphic framework of the Proterozoic successions in the Aravalli orogen hinders the reconstruction of its geodynamic evolution. This study provides new results of detrital zircon grains from conglomerate samples, revealing their maximum depositional ages and indicating the earlier deposition of these conglomerates compared to previous concepts. The zircon age-Hf isotope data also provide evidence for a series of crust formation and reworking events in the Aravalli orogen and all over India.
PRECAMBRIAN RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Hamed Gamaleldien, Zheng-Xiang Li, Mohamed Abu Anbar, J. Brendan Murphy, Noreen J. Evans, Xia-Ping Xia
Summary: This study investigates the Neoproterozoic magmatism in the Eastern Desert of Egypt and finds that the granitoids in this region were derived from melting of a juvenile source without the input of old continental material.
PRECAMBRIAN RESEARCH
(2022)
Article
Geochemistry & Geophysics
Myoung Jung Kim, Youngji Ha, Ji Eun Choi, Kye-Hun Park, Yong-Sun Song, Shuwen Liu
Summary: The Seochangni Formation in central South Korea is characterized by a main detrital zircon age range of Late Paleoproterozoic to Mesoproterozoic, with a lack of older age components typically found in basement rocks of the Korean peninsula. This suggests a correlation with similar age patterns in other regions, indicating a common crustal evolution since the Paleoproterozoic.
Article
Geochemistry & Geophysics
Ziyi Zhu, Ian H. Campbell, Charlotte M. Allen, Zefeng Li
Summary: Integrated U-Pb, O and Lu-Hf isotopic analyses of detrital zircons were conducted to study the evolution of the preserved European continental crust. The ages of detrital zircons generally match the major magmatic events in eastern and western Europe. The isotopic data indicate extensive reworking of pre-existing crustal rocks during the late Paleoproterozoic and Paleozoic.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Geochemistry & Geophysics
Ling-Juan Mao, Zhen-Yu He, Ze-Ming Zhang, Reiner Klemd, Hua Xiang, Zuo-Lin Tian, Ke-Qing Zong
Article
Geochemistry & Geophysics
Zeming Zhang, Hua Xiang, Xin Dong, Huixia Ding, Zhenyu He
Article
Geochemistry & Geophysics
Huixia Ding, Zeming Zhang, Xin Dong, Zuolin Tian, Hua Xiang, Hongchen Mu, Zhengbin Gou, Xinfang Shui, Wangchao Li, Lingjuan Mao
EARTH AND PLANETARY SCIENCE LETTERS
(2016)
Article
Geochemistry & Geophysics
Zhengbin Gou, Zeming Zhang, Xin Dong, Hua Xiang, Huixia Ding, Zuolin Tian, Hengcong Lei
Article
Geochemistry & Geophysics
Huixia Ding, Zeming Zhang, Kaiming Hu, Xin Dong, Hua Xiang, Hongchen Mu
Article
Geosciences, Multidisciplinary
Zhang Zeming, Xiang Hua, Ding Huixia, Dong Xin, Gou Zhengbin, Tian Zhulin, M. Santosh
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
(2017)
Article
Geosciences, Multidisciplinary
Zeming Zhang, Hua Xiang, Xin Dong, Wangchao Li, Huixia Ding, Zhengbin Gou, Zuolin Tian
Article
Geochemistry & Geophysics
Cheng-Hong Chen, Yung-Hsin Liu, Chi-Yu Lee, Yuji Sano, Han-Wen Zhou, Hua Xiang, Naoto Takahata
Article
Geosciences, Multidisciplinary
Hua Xiang, Zeming Zhang, Liming Zhao, Zengqiu Zhong, Hanwen Zhou
JOURNAL OF EARTH SCIENCE
(2018)
Article
Geology
Hua Xiang, James A. D. Connolly
Summary: GeoPS is a program that enables the calculation of stable phase relations throughout the mantle and crust of terrestrial planets, with a wide range of phase equilibrium calculations and an intuitive graphical user interface. The novel Gibbs energy minimization algorithm in GeoPS provides robust and efficient solution to the phase equilibrium problem.
JOURNAL OF METAMORPHIC GEOLOGY
(2022)
Article
Geology
Zhang ZeMing, Dong Xin, Ding HuiXia, Tian ZuoLin, Xiang Hua
ACTA PETROLOGICA SINICA
(2017)
Article
Geology
Jiang YuanYuan, Xiang Hua, Zhang ZeMing
ACTA PETROLOGICA SINICA
(2017)
Article
Geology
Gou ZhengBin, Zhang ZeMing, Dong Xin, Ding HuiXia, Xiang Hua, Lei HengCong, Li WangChao, Tang Lei
ACTA PETROLOGICA SINICA
(2015)
Article
Geology
Ding HuiXia, Zhang ZeMing, Xiang Hua, Qi Min, Gou ZhengBin, Lei HengCong
ACTA PETROLOGICA SINICA
(2015)
Article
Geology
Li WangChao, Zhang ZeMing, Xiang Hua, Gou ZhengBin, Ding HuiXia
ACTA PETROLOGICA SINICA
(2015)