Article
Geochemistry & Geophysics
Zheng-wei Qin, Wolfgang Siebel, Jian-ming Fu, Hao Wang, Bo Bao, Yu-shuai Yu, Liang Shan, You-yue Lu, Yuan-Bao Wu
Summary: The early Paleozoic granitoids of the North Qinling Terrane are products of the long-lasting subduction of the Proto-Tethys ocean. Magmatic activity and crustal anatexis occurred simultaneously, with magmatism moving progressively from north to south. These findings are consistent with the roll-back of the Shangdan oceanic slab and transition from an oceanic arc into a back-arc basin setting.
Article
Geochemistry & Geophysics
I Jahn, C. Clark, S. Reddy, R. J. M. Taylor
Summary: The Capricorn Orogen in Western Australia records the convergence and collision of the Yilgarn and Pilbara cratons over one billion years, followed by intracontinental reworking. New isotopic analyses suggest that the Glenburgh Terrane may represent a reworked portion of the adjacent cratons. The transition from mantle-derived to crustal-melting dominated granite magmatism reflects a geodynamic evolution from subduction-accretion to collision and intracratonic reworking.
JOURNAL OF PETROLOGY
(2021)
Article
Geosciences, Multidisciplinary
Sebastian Oriolo, Bernhard Schulz, Silvana Geuna, Pablo D. Gonzalez, Juan E. Otamendi, Jiri Slama, Elena Druguet, Siegfried Siegesmund
Summary: Early Paleozoic accretionary orogens in Western Gondwana were characterized by continuous subduction, high-temperature metamorphism, and crustal extension. Retreating-mode accretionary orogens played a key role in the Early Paleozoic evolution of Gondwana, with slab roll back influencing geodynamic processes. This study highlights the importance of understanding the common tectonic processes in Western Gondwana orogens during the Early Paleozoic.
GEOSCIENCE FRONTIERS
(2021)
Article
Geosciences, Multidisciplinary
Francis Chopin, Remi Lepretre, Mohamed El Houicha, Anne-Sophie Tabaud, Karel Schulmann, Jitka Mikova, Jocelyn Barbarand, Ryma Chebli
Summary: This paper presents new U-Pb geochronological data on granitoids from the Moroccan Meseta Variscan belt. The results show a peak of magmatic activity at 335.2 +/- 0.8 Ma in the Western Meseta and early Visean magmatic activity in the Eastern Meseta. The study also suggests a possible relationship between the magmatic activity and the tectonic events in Northwest Africa. Evaluation: 8 points.
Article
Geochemistry & Geophysics
Kai Wu, Lipeng Zhang, Xiaoyan Jiang, Yuxiao Chen, Jia Guo, Weidong Sun, Qinglin Sui, Honglin Yuan
Summary: The study indicates a relatively uniform rate of new crust production in the evolution of the Western Kunlun orogen, with different extensional events showing distinct characteristics. Overall, rapid juvenile crust generation during extensional stages is a common feature of accretionary orogens.
Article
Geosciences, Multidisciplinary
Marie Pierre Dabard, Alfredo Loi, Pamela Pavanetto, Mattia Alessio Meloni, Natalia Hauser, Massimo Matteini, Antonio Funedda
Summary: This study investigates the sedimentary source areas of the Armorican Massif using U-Pb LA-MC-ICP-MS geochronology on detrital zircons, whole-rock Sm-Nd, and zircon Lu-Hf isotope analysis. It reveals changes in sediment flux characteristics post-Cadomian orogenesis and differences in paleogeographic locations during the Lower Ordovician. The results suggest geological continuity between the Armorican Massif and neighboring massifs, and highlight the importance of accurate sediment provenance analysis for reconstructing paleogeographic affinities.
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
Byron Solis-Alulima, Jacobo Abati, Alicia Lopez-Carmona, Gabriel Gutierrez-Alonso, Javier Fernandez-Suarez, Daniel F. Stockli
Summary: This study presents U-Pb geochronological data on detrital zircon grains from the metasedimentary successions in the Sierra Albarrana Domain. The results suggest that this domain is likely part of the autochthonous section of the Central Iberian Zone and the sedimentary provenance may be from the Saharan Metacraton with possible minor input from the Tuareg Shield. The study also compares the U-Pb zircon data with existing data from Neoproterozoic and Cambrian rocks in the Iberian Massif using multidimensional scaling techniques.
Article
Geochemistry & Geophysics
Yadi Zhuang, Yuanbao Wu, Wenxiang Zhang, Pan Hu, Yu He
Summary: This study conducted a comprehensive analysis of the Changwan granitoids in the Erlangping oceanic arc unit of the Tongbai orogen, including in-situ zircon U-Pb dating, Hf-O isotopic analyses, and whole-rock geochemical and Sr-Nd isotopic compositions. The results provide insights into the formation of the Changwan granitoids and reveal the process of partial melting of enriched oceanic crust in a subduction zone.
Article
Geosciences, Multidisciplinary
Min Li, Bangfang Ren, Houtian Xin, Lianfeng Duan, Yunwei Ren, Wenchao Niu, Wengang Liu
Summary: The Late Palaeozoic accretionary orogeny in the northern Beishan Orogen was studied through the analysis of zircon U-Pb age, zircon Hf, and whole-rock Sr-Nd isotopic composition of Permo-Carboniferous granitoids and diorites at Hazhu. Results show that the Carboniferous granitoids have juvenile crustal origins with mantle source components, while Permian granitoids exhibit more mantle-derived components, indicating vertical growth of the crust. These findings provide new evidence for the timing of Late Palaeozoic accretion and orogeny in the region and vertical accretion of Phanerozoic crust along the southern margin of the Central Asian Orogenic Belt.
GEOLOGICAL JOURNAL
(2021)
Article
Geochemistry & Geophysics
Jie Hui, Kai-Jun Zhang, Jin Zhang, Junfeng Qu, Beihang Zhang, Heng Zhao, Pengfei Niu
Summary: The study analyzed granitoids from the NE Alxa block in northern China using geochemical and isotopic data, suggesting a tectonic transition from rifting to arc-continent collision during the mid-Permian in this region. The closure of the Paleo-Asian oceanic branch led to crustal thickening and subsequent adakitic magmatism due to upwelling of asthenosphere during the middle-late Permian.
Article
Geosciences, Multidisciplinary
M. Ram Mohan, Neal J. McNaughton, D. Srinivasa Sarma, M. Rajamanickam, Ian R. Fletcher, Simon A. Wilde, Birger Rasmussen, Bryan Krapez, S. Balakrishnan
Summary: This study presents new SHRIMP U-Pb zircon and titanite ages, whole-rock geochemical and Sm-Nd isotopic data for granitoids in the Chitradurga Greenstone Belt. The results show that the growth of the belt is related to horizontal tectonics since at least 3.2 Ga.
JOURNAL OF ASIAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Abdullah Kaygusuz, Mehmet Arslan, Irfan Temizel, Cem Yucel, Emre Aydincakir
Summary: This study provides new insights into the igneous activity and geodynamic evolution of the Late Cretaceous era in the north part of the Eastern Pontides Orogenic Belt (EPOB) through the analysis of mineralogy, petrology, geochronology, and isotope geochemistry of the Arpakoy and Oyman granitoids. The results indicate specific petrological characteristics and emplacement depths of these granitoids, with the parental magma originating from an enriched lithospheric mantle.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
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
Geology
Marta Roige, David Gomez-Gras, Daniel F. Stockli, Antonio Teixell, Salvador Boya, Miquel Poyatos-More
Summary: This study investigates the provenance evolution of the clastic deposits in the Jaca basin in the southern Pyrenees from the mid Eocene to early Miocene. It reveals a shift in the source area from the Variscan to Cadomian signature. The integration of detrital zircon U/Pb data with sandstone petrography improves the resolution of the source-area shifts and the understanding of sediment recycling during foreland evolution.
SEDIMENTARY GEOLOGY
(2023)
Article
Geochemistry & Geophysics
Janaina N. Avila, Trevor R. Ireland, Peter Holden, Peter Lanc, Andrew Latimore, Norm Schram, John Foster, Ian S. Williams, Liane Loiselle, Bin Fu
GEOSTANDARDS AND GEOANALYTICAL RESEARCH
(2020)
Article
Geosciences, Multidisciplinary
Gaetano Ortolano, Eugenio Fazio, Roberto Visalli, G. Ian Alsop, Mario Pagano, Rosolino Cirrincione
JOURNAL OF STRUCTURAL GEOLOGY
(2020)
Article
Geosciences, Multidisciplinary
G. Ortolano, R. Visalli, E. Fazio, P. Fiannacca, G. Godard, A. Pezzino, R. Punturo, V Sacco, R. Cirrincione
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2020)
Article
Geochemistry & Geophysics
Stanislaw Z. Mikulski, Ian S. Williams, Holly J. Stein, Jan Wierchowiec
Article
Computer Science, Information Systems
Gaetano Ortolano, Alberto D'Agostino, Mario Pagano, Roberto Visalli, Michele Zucali, Eugenio Fazio, Ian Alsop, Rosolino Cirrincione
Summary: ArcStereoNet is a new stereographic projection toolbox based on ArcGIS(R) and implemented using Python 2.7. It allows for flexible application of statistical methods, provides high-quality graphic outputs, and has an intuitive GUI interface.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2021)
Article
Computer Science, Information Systems
Roberto Visalli, Gaetano Ortolano, Gaston Godard, Rosolino Cirrincione
Summary: The new Micro-Fabric Analyzer (MFA) utilizes X-ray and optical image features for quantitative extrapolation of rock microstructural features, allowing for more comprehensive analysis compared to traditional edge mineral grain detectors. The MFA toolbox enables low-cost and user-friendly quantification of mineral types, integrated with micro-X-ray maps for extrapolating elemental distribution maps.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2021)
Article
Geochemistry & Geophysics
Jean-Francois Moyen, Vojtech Janousek, Oscar Laurent, Olivier Bachmann, Jean-Baptiste Jacob, Federico Farina, Patrizia Fiannacca, Arnaud Villaros
Summary: This paper discusses the two competing paradigms regarding the formation of granitic magmas and their implications, emphasizing that both views are based on a large body of evidence and propose that each of them is relevant to some portions of the Earth.
Article
Geosciences, Multidisciplinary
Patrizia Fiannacca, Damiano Russo, Eugenio Fazio, Rosolino Cirrincione, Manish A. Mamtani
Summary: The Serre Batholith in Central Calabria represents the intermediate portion of late Variscan continental crust, with upper levels composed of two-mica granodiorites and granites, and lower levels of weakly peraluminous granodiorites. The granitoid rocks in the batholith exhibit deformation microstructures due to tectonic stresses, with a magnetic foliation showing a shortening axis oriented NW-SE. Ongoing studies aim to further investigate the relationship between regional tectonic structures and the emplacement of the late-Variscan Serre Batholith granitoids.
Article
Geosciences, Multidisciplinary
Eugenio Fazio, Patrizia Fiannacca, Damiano Russo, Rosolino Cirrincione
Article
Geochemistry & Geophysics
R. Lombardo, P. Fiannacca, R. Cirrincione
Article
Geosciences, Multidisciplinary
Patrizia Fiannacca, Rosolino Cirrincione
Article
Geosciences, Multidisciplinary
Gaetano Ortolano, Alberto D'Agostino, Roberto Visalli, Rosolino Cirrincione
RENDICONTI ONLINE SOCIETA GEOLOGICA ITALIANA
(2019)
Article
Geosciences, Multidisciplinary
Rosalda Punturo, Gaetano Ortolano, Roberto Visalli, Salvatore Caffo, Carmelo Ferlito, Rosolino Cirrincione
RENDICONTI ONLINE SOCIETA GEOLOGICA ITALIANA
(2019)
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.