Article
Geosciences, Multidisciplinary
D. Talone, L. De Siena, G. Lavecchia, R. de Nardis
Summary: Seismic attenuation and scattering tomography models reveal the complex tectonics of Central-Southern Italy, with high attenuation and scattering anomalies characterizing the Apenninic Chain. Fault-associated fractured zones act as pathways for CO2-bearing fluids. The study also identifies previously undetected fluid source areas and locked aseismic zones with low seismic energy release.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
David L. de Castro, Diogenes C. Oliveira, Duvan R. H. Herrera, Francisco H. R. Bezerra, Marco A. T. Romeiro, Mario N. C. Araujo
Summary: This study provides new insights into the structural architecture and tectonic development of the Brazilian Equatorial Margin during the opening of the Equatorial Atlantic Ocean. It reveals the role of Precambrian heritage in the crustal compartmentalization and improves previous evolution models of the margin.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
C. Esteve, Y. Liu, I Koulakov, A. J. Schaeffer, P. Audet
Summary: This study investigates the seismic activity of the Canadian Beaufort Sea continental margin and identifies a unique low-velocity anomaly in the crust, potentially associated with crustal thinning and weakening. The findings suggest that the north-south compression in this region is accommodated through slow, aseismic deformation, without necessarily involving subduction initiation.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Review
Geosciences, Multidisciplinary
Yating Zhong, Timothy M. Kusky, Lu Wang, Chuanhai Wang, Yaying Peng, Tingting Wang, Chao Yan
Summary: This study reports on the structural geometry and stacking sequence of an Archean Alpine-style sub-horizontal fold/thrust nappe pile in northern China, providing a quantitative basis for studying the tectonism style during Archean orogenesis. The nappe pile is subdivided into different nappes with major ductile shear zones at their bases, and they originated from different tectonic belts of an ancient paleo-ocean before being emplaced. The study reveals similarities between the Archean Zanhuang nappes and other orogenic belts, supporting the existence of horizontal plate tectonics in the Archean.
Article
Geosciences, Multidisciplinary
Yi Hao, Lingli Guo, Yingming Feng, Hao Zhang, Ian Somerville, Sanzhong Li, Junjiang Zhu
Summary: In this study, detailed whole-rock major and trace element analyses were conducted for the syenogranite and monzogranite in the Xinchenggou area. It was found that both types of granite belong to high-K calc-alkaline and peraluminous magma with distinct differentiation between light rare earth elements and heavy rare earth elements, indicating that they are (slightly fractionated) I-type granite. The granitic magma in the Xinchenggou area was derived from the upper mantle or the lower crust, and the emplacement of the granites was related to the subduction of the Paleo-Pacific Plate beneath the Eurasian Plate during the Late Triassic to Early Jurassic.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
A. Pedrera, J. Garcia-Senz, C. Peropadre, A. Robador, B. Lopez-Mir, J. Diaz-Alvarado, L. R. Rodriguez-Fernandez
Summary: The Bay of Biscay-Pyrenean rift system is a world-class example of an inverted hyperextended rift. The study investigates the geological features and tectonic evolution of this rift system, shedding light on the processes of rift formation and the mechanisms driving crustal shortening. The sequential analysis of crustal-scale transects provides insights into the development of rifts and the dynamics of crustal deformation.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geography, Physical
Elham Zarei, Ali Faghih, Masoumeh Soleimani, Saeed Zarei
Summary: This study assesses the relative tectonic activity along the Lar and Didehban faults within the Zagros Fold-Thrust Belt in southwestern Iran using DEM-derived geomorphic indices. The results provide valuable information for assessing the effects of active tectonics and planning sustainable land use in the region.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geosciences, Multidisciplinary
Dan Bassett, Gou Fujie, Shuichi Kodaira, Ryuta Arai, Yojiro Yamamoto, Stuart Henrys, Dan Barker, Andrew Gase, Harm Van Avendonk, Nathan Bangs, Hannu Seebeck, Brook Tozer, Katie Jacobs, Thomas Luckie, David Okaya, Kimi Mochizuki
Summary: Marine seismic data reveals the distribution of seamounts, sediment cover sequence, and crustal structure along the Hikurangi Plateau. Gravity data suggest that the variation in crustal thickness may be related to deformation and lithospheric extension. The variability in crustal thickness plays a significant role in plate boundary configuration and stress distribution.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Jafar Hassanpour, Ali Yassaghi, Josep A. Munoz, Salman Jahani
Summary: Salt tectonics in the Eastern Persian Gulf, Iran, are associated with the flow of the Hormuz Salt and the Fars Salt layers, which began in the Early Paleozoic and Early Miocene, respectively, due to differential sedimentary loading and subsalt basement faults. Over time, the formation of diapirs and pillows remains unresolved, with significant salt extrusion leading to the development of allochthonous salt sheets and wings. The ascendancy of the Hormuz Salt occurred since the Late Oligocene, while the Fars Salt was mainly driven by differential sedimentary loading.
Article
Geosciences, Multidisciplinary
Jocelyn Balansa, Nicolas Espurt, Jean-Claude Hippolyte, Jean Philip, Severine Caritg
Summary: This study combines surface and subsurface data to build a balanced cross-section across two fold-thrust belts in southeastern France, revealing the characteristics and evolution of crustal shortening in the Provencal and Subalpine belts.
EARTH-SCIENCE REVIEWS
(2022)
Article
Engineering, Mechanical
Natalia Garcia, Fernando Pena, Marcos M. Chavez
Summary: This study examines the geometric configuration of the conventual temples built by mendicant orders in 16th century Mexico and its correlation with damage caused by the September 19, 2017 earthquake. The research focuses on the convent complexes in Morelos state, where the Franciscan, Dominican, and Augustinian orders constructed their initial architectural works outside of Mexico City.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Geochemistry & Geophysics
Jack N. Williams, Luke N. J. Wedmore, Christopher A. Scholz, Folarin Kolawole, Lachlan J. M. Wright, Donna J. Shillington, Ake Fagereng, Juliet Biggs, Hassan Mdala, Zuze Dulanya, Felix Mphepo, Patrick R. N. Chindandali, Maximilian J. Werner
Summary: The Malawi Active Fault Database (MAFD) is an open-access geospatial database containing 113 fault traces in Malawi and neighboring Tanzania and Mozambique. It is used to understand the regional seismic hazard and tectonic evolution. The MAFD incorporates a multidisciplinary dataset including digital elevation models, geological mapping, seismic reflection surveys, and magnetic and gravity data. The study finds that the distribution of fault lengths in Malawi follows a power law.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geosciences, Multidisciplinary
Zeyu Ma, Hongyi Li, Min Liu, Yafen Huang, Shengzhong Zhang, Yuejun Lv
Summary: In this study, we propose a workflow for automatically extracting micro-seismic information from continuous raw seismic data. This workflow combines the PhaseNet, GPU-M&L, and DeepDenoiser methods. We first use PhaseNet to detect missed seismic phases and then apply REAL, VELEST, and HypoDD for event association and location. The detected events are further processed using GPU-M&L, DeepDenoiser, and HypoDD for noise reduction, better picking of arrival time, and relocation. Compared to the routine catalog, we detected and located 977 earthquakes, revealing a complex distribution pattern in Hainan Province.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geochemistry & Geophysics
Abeer Al-Ashkar, Antoine Schlupp, Matthieu Ferry, Ulziibat Munkhuu
Summary: This study presents the first constraints on the Sharkhai fault near the capital city of Mongolia, including its geometry, kinematics, recent activity, and seismic behavior. The findings provide valuable insights for assessing seismic hazards in the region.
Article
Geosciences, Multidisciplinary
Chris Kirkham, Joe Cartwright
Summary: Several salt basins worldwide have experienced multiphase deformation, with early drivers for salt flow often concealed by later deformation overprinting. Utilizing seismic reflection data and fluid escape pipe trails can reveal the internal kinematics of salt sheet deformation. Retro-deformation is crucial for interpreting salt flow profiles and internal deformation.
Article
Geosciences, Multidisciplinary
Weijiao Ma, Jinbu Li, Min Wang
Summary: The petroleum resource assessment obtained from laboratory tests on old core samples tends to underestimate the in situ resources. This study investigates the hydrocarbon loss and restoration by comparing preserved and exposed core samples. It is found that previous studies have severely underestimated the in situ hydrocarbon potential due to factors such as sample crushing and crucible waiting. A new restoration model is proposed to compensate for these losses.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Shaoyun Chen, Yongqiang Yang, Longwei Qiu, Xiaojuan Wang, Erejep Habilaxim
Summary: Quartz cement is an important authigenic mineral in the tight sandstones of the Shaximiao Formation in the Sichuan Basin. This study analyzed the silicon sources of the quartz cement using mineralogical, fluid inclusion, and geochemical data. The results showed that smectite alteration and dissolution of aluminosilicate minerals were the primary sources of silicon for quartz cementation. Contributions from volcanic material hydrolysis and pressure solution were relatively minor. The presence of chlorite films inhibited the development of quartz overgrowths and had minimal impact on reservoir quality.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Xing Jian, Ping Guan, Ling Fu, Wei Zhang, Xiaotian Shen, Hanjing Fu, Ling Wang
Summary: This study presents a synthesis of new detrital zircon dating results and published data from the Cenozoic Qaidam basin, revealing the spatiotemporal variation of detrital zircon age populations and supporting models of synchronous deformation in northern Tibet. The study emphasizes the importance of considering textural and sedimentological parameters in zircon provenance interpretations, as well as the need for integrated provenance analysis involving other detritus components.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
A. Peketi, G. Sriram, A. Mazumdar, P. Dewangan, A. Zatale, V. Rajurkar, Gayatri Shirodkar, V. Mahale, V. Yatheesh
Summary: This study investigates 13 submarine seamounts in the southern Andaman volcanic arc and observes evidence of hydrothermal activity in one of the seamounts. The evidence includes plumes rich in dissolved gases, live chemosymbiotic organisms, and the deposition of neoforming minerals. These observations suggest the development of a new hydrothermal field in the least explored Andaman Sea.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Yanxian Zhu, Zhiliang He, Xiaowen Guo, Long Li, Sheng He, Jian Gao, Shuangjian Li, Huili Li
Summary: This study investigates the fluid evolution history of the hydrothermal dolomite reservoir in the Middle Permian Maokou Formation in the Sichuan Basin. The results reveal the diagenetic sequences, mineral origins, salinity history, and pressure evolution using various analytical techniques. The findings provide important insights into the gas charge, escape, and preservation conditions of the reservoir.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Rafaella de Carvalho Antunes, Julia Campos Guerrero, Ricardo Jorge Jahnert
Summary: This study presents a detailed sedimentary model and identifies various sedimentary facies associations in the coquina deposits of the Itapema Formation in the offshore pre-salt Buzios Field of the Santos Basin. These facies associations were primarily influenced by waves and currents and reflect a complex depositional system.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Kang Meng, Tongwei Zhang, Deyong Shao, Xiuyan Liu, Hui Song, Heng Peng
Summary: In this study, an integrated method of measuring optical reflectance and Raman spectroscopy is proposed to accurately determine the thermal maturity of Lower Cambrian shales in South China. The results show that this method is reliable and effective, and it has important implications for analyzing overmature shale.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Mohamed A. K. El-Ghali, Olga Shelukhina, Iftikhar Ahmed Abbasi, Mohamed S. H. Moustafa, Osman Salad Hersi, Numair A. Siddiqui, Khalid Al-Ramadan, Abdullah Alqubalee, Abdulwahab Muhammad Bello, Abduljamiu O. Amao
Summary: This study employs an integrated depositional and sequence stratigraphic approach to assess the control of diagenesis on reservoir porosity of a hybrid-energy delta system. The study focuses on the Barik Formation in the Haushi-Huqf region of Central Oman, which represents a highstand system tract of a hybrid-energy delta. The assessments reveal that the reservoir porosity is controlled by various degrees of diagenetic processes, including mechanically infiltrated clays and kaolinitization of silicate grains.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Xiaocan Yu, Chunlian Wang, Hua Huang, Kai Yan
Summary: Oilfield brines are a significant alternative lithium resource. This study investigates the metallogenic characteristics and enrichment process of oilfield brines from the Jianghan Basin, central China using chemical and multi-isotope data. The results suggest that lithium enrichment in these brines is the result of interaction with clastic host rocks and dilution by meteoric water.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Jianghao Qiao, Xiwu Luan, Thanuja D. Raveendrasinghe, Yintao Lu, Guozhang Fan, Xinyuan Wei, Long Jin, Jian Yin, Haozhe Ma, Lushan Jiang
Summary: This study investigates the Tanintharyi passive continental margin in the Andaman Sea and reveals the potential of the Oligocene/Early Miocene carbonate platform in the region as a significant hydrocarbon reservoir. It also examines the influence of changes in sedimentary facies and the tectonic setting of the Andaman Sea on the evolution of pockmarks.
MARINE AND PETROLEUM GEOLOGY
(2024)
Article
Geosciences, Multidisciplinary
Anastasios Nikitas, Georgios Makrodimitras, Maria V. Triantaphyllou, Nikolaos Pasadakis, Kimon Christanis, Stavros Kalaitzidis, Grigoris Rousakis, Ioannis Panagiotopoulos, Alexandra Gogou, Alexandros Papadopoulos, Efthimios Tartaras, Aristofanis Stefatos
Summary: Due to the lack of deep wells in the broader region, studying mud volcanic deposits can improve the geological understanding of the Mediterranean Ridge. In this study, biostratigraphic and geochemical analyses were performed on mud breccia deposits from five Mud Volcanoes in the central MR. The results indicate the origin of these deposits and provide insights into the source rock potential. Seismic data is also used to determine the distribution of major lithostratigraphic formations.
MARINE AND PETROLEUM GEOLOGY
(2024)