Article
Environmental Sciences
Entao Liu, Detian Yan, Jianxiang Pei, Xudong Lin, Junfeng Zhang
Summary: Investigating the sedimentary architecture and evolution of sand-rich submarine fans in the Qiongdongnan Basin is crucial for understanding deep-water sedimentary processes and improving the success rate of hydrocarbon resource exploration. The study reveals the presence of five distinct deep-water depositional systems, including a unique sand-rich submarine fan, and provides valuable insights for offshore gas hydrate and shallow gas exploration in the basin.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geochemistry & Geophysics
K. Mareike Paul, Niels A. G. M. van Helmond, Caroline P. Slomp, Sami A. Jokinen, Joonas J. Virtasalo, Helena L. Filipsson, Tom Jilbert
Summary: Until now, studies on Mo and U enrichment have focused on restricted suboxic-euxinic basins and continental margin oxygen minimum zones (OMZs), neglecting mildly reducing and oxic (but eutrophic) coastal depositional environments. This study investigates 18 coastal sites with varying bottom water redox conditions and finds that Mo and U enrichments can accurately differentiate bottom water oxygen concentration among a range of modern coastal depositional environments. However, secondary factors can bias the enrichments and compromise their reliability in reflecting bottom water redox conditions.
Article
Geosciences, Multidisciplinary
Hui Chen, Dorrik A. Stow, Xinong Xie, Jianye Ren, Kainan Mao, Ya Gao, Beichen Chen, Wenyan Zhang, Thomas Vandorpe, David Van Rooij
Summary: The study analyzes the sediment budget and fan system development in the Northwest Sub-basin of the South China Sea since the Late Miocene, revealing the impact of sediment supply changes on the formation of two interdigitating basin-floor fan systems. The Xisha fan and Pearl River fan experienced different sediment supply patterns during different periods, providing insights into the sediment source-to-sink processes in marginal oceanic basins like the South China Sea.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Astronomy & Astrophysics
Michelle Tebolt, Timothy A. Goudge
Summary: By using high-resolution orbital data, this study examines the stratigraphy of 15 fan deposits on Mars, identifying a previously undocumented delta deposit. Most fan outcrops show no slope break characteristic of a delta, indicating they cannot be conclusively classified as such. Erosion and modification since lithification are important factors to consider when interpreting the morphology of these landforms on Mars.
Article
Geosciences, Multidisciplinary
Hongxun Tian, Changsong Lin, Zhongtao Zhang, Hao Li, Bo Zhang, Manli Zhang, Hanyao Liu, Jing Jiang
Summary: The submarine canyon system in the Miocene Pearl River Mouth Basin has been well documented through integrated analysis of seismic, well logs, and core data. It comprises important petroleum reservoirs and is controlled by factors such as differential tectonic subsidence and relative sea level changes, which have influenced the evolution of the system.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Shishun Wang, Liao Chang, Pengfei Xue, Shengfa Liu, Xuefa Shi, Jingrui Li, Jinhua Li, Somkiat Khokiattiwong, Narumol Kornkanitnan
Summary: Submarine fan sediments in the central Bengal Fan provide a high-resolution magnetic mineral record spanning the past 40 ka. The abundance and grain size of detrital magnetite and titanomagnetite are primarily controlled by sea-level change. Magnetic mineral variations and climate events are decoupled due to increased Indian hemipelagic sediment input since the last deglaciation sea-level rise. Additionally, an enriched biogenic magnetite layer near the Fe-redox boundary suggests mild postdepositional diagenesis.
Article
Environmental Sciences
Xin Chang, Xiting Liu, Houjie Wang, Guangchao Zhuang, Zhixin Ma, Junjie Yu, Jing Chen
Summary: This study investigates the formation and sulfur isotopic composition of pyrite in core QK11 from Xiapu Bay, revealing that pyrite sulfur content is mainly controlled by TOC content and C/S ratios can effectively identify three transgressions since MIS5. Early-stage organiclastic sulfate reduction plays a key role in sulfur isotopic fractionation.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Engineering, Marine
Mubashir Mehmood, Abbas Ali Naseem, Maryam Saleem, Junaid ur Rehman, George Kontakiotis, Hammad Tariq Janjuhah, Emad Ullah Khan, Assimina Antonarakou, Ihtisham Khan, Anees ur Rehman, Syed Mamoon Siyar
Summary: An integrated study was conducted to examine the facies architecture and depositional environment of the Cretaceous Pab Formation in Pakistan. The research focused on analyzing architectural elements and facies, which are not commonly studied in the region. By interpreting these elements, a better understanding of the depositional history and reservoir distribution was gained.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Hao Wang, Shu Jiang, Yuying Zhang, Xin Wang, Enhao Liu, Xiaobin Dong
Summary: This study analyzes the distribution and geomorphology of sublacustrine fans in the Dongying Formation in the Liaoxi uplift of the Bohai Bay Basin, East China, and identifies the controlling factors. The study reveals that two types of sublacustrine fans, channelized and non-channelized, developed on the eastern slope of the uplift. The slope gradient, sediment composition, and relative lake level change were found to influence the shape and formation of the fans. The study provides a theoretical basis for understanding the characteristics and distribution of sublacustrine fans in similar basin settings.
Article
Geosciences, Multidisciplinary
Jakub Miluch, Andrzej Osadczuk, Peter Feldens, Jan Harff, Lukasz Maciag, Hongjun Chen
Summary: The study utilized high-resolution 2D seismic reflection profiles to explore the late Quaternary sediment stratigraphy deposited in the Beibu Gulf, revealing the presence of a paleodelta offshore Hainan Island. Through analysis of discontinuities, the characteristics of the delta body, sediment transport directions, and sources were determined.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Maxine King, Jenny A. Gales, Jan Sverre Laberg, Robert M. McKay, Laura De Santis, Denise K. Kulhanek, Phil J. Hosegood, Antony Morris
Summary: This study investigates the sedimentary records of the Ross Sea to understand the history and changes in interactions between past ice sheets and oceans. Through the analysis of different lithofacies characteristics, it reveals the evolution of ice sheets over the past approximately 2.4 million years. Sedimentation processes were influenced by turbidity currents and bottom currents differently during different glacial cycles, reflecting the oceanographic conditions and ice sheet dynamics at the time.
Article
Geology
George Pantopoulos, Rafael Manica, Adam D. McArthur, Juliano Kuchle
Summary: The study focused on the fractionation of particles in deep-water sediment gravity flows, especially in experimental settings using coal and kaolin particles. The results show observable correlations between particle shape parameters, with circularity and roundness being dominant controls on shape variation. Additionally, differences in particle shape parameter distributions were observed in different areas within the experimental basin, especially in non-cohesive flow experiments.
Article
Geology
Peng Chen, Benzhong Xian, Meijun Li, Xiaowei Liang, Qianran Wu, Wenmiao Zhang, Junhui Wang, Zhen Wang, Jianping Liu
Summary: The study reveals that the Triassic Ordos Lake turbidite system is relatively large and supported by continuous sediment supply from extraordinary flood events. In the lacustrine realm, extreme flood events can generate a world-class deep-water turbidite system comparable to its submarine counterparts.
Article
Marine & Freshwater Biology
Yan Chen, Chun Hu, Gui-Peng Yang, Xian-Chi Gao
Summary: Sedimentary organic matter (SOM) in the South Yellow Sea and East China Sea was analyzed for total organic carbon (TOC), total nitrogen (TN), stable carbon isotope (delta 13C), and total hydrolysable amino acids (THAA). The results showed a mixture of marine organic matter and soil-derived organic matter in the study area, with relatively fresh organic matter found near the Shandong Peninsula, but overall significant degradation of SOM.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Environmental Sciences
Cesar C. Martins, Michelle Alves de Abreu-Mota, Mylene Giseli do Nascimento, Ana Lucia L. Dauner, Rafael Andre Lourenco, Marcia C. Bicego, Rosalinda C. Montone
Summary: Organic biomarkers, such as aliphatic hydrocarbons, have been widely used to evaluate recent environmental changes in marine environments, including Antarctica. The sources of aliphatic hydrocarbons in Antarctic sediment cores have remained stable, with a slight increase in inputs observed between 1975 and 1992.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Qiulei Guo, Songqi Pan, Feng Yang, Yue Yao, He Zheng
Summary: The study provides quantitative and visual qualitative analyses of shale oil occurrence using petrophysical and geochemical approaches. It found that soluble organic matter in oil-bearing shales is mainly controlled by clay minerals, and that solvent extraction can significantly enhance the pore volume and surface area of shales. Light and heavy hydrocarbons were found to reside in pores with different scales in the extracted soluble organic matter.
Article
Geosciences, Multidisciplinary
Jinyu Zhang, William Ambrose, Ronald Steel, Si Chen
Summary: This study focuses on the spatial and temporal changes of facies and depositional processes in the shallow-marine deltas and estuaries, specifically on the transgressive-regressive cycles. Two long cores were used to describe the cycles and understand the changes in river, wave, and tide process signals. The dominant process in these cycles has significant implications for hydrocarbon production and exploration.
Article
Multidisciplinary Sciences
Weidong Xie, Huajun Gan, Chongyu Chen, Veerle Vandeginste, Si Chen, Meng Wang, Jiyao Wang, Zhenghong Yu
Summary: This study investigates the formation mechanism of coalbed methane, shale gas, and tight sandstone gas, and divides them into different reservoir combinations. The analysis of lithology, organic matter content, gas logging results and other characteristics determines the most favorable combination for development. This study is of great significance for coal measure gas exploration.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Entao Liu, Yong Deng, Xudong Lin, Detian Yan, Si Chen, Xianbin Shi
Summary: This study investigates the deposition evolution and stratal stacking patterns in the Zhu III Depression of the Pearl River Mouth Basin. It reveals the diversity of depositional systems and the variation of stratal stacking patterns in time and space. The study also highlights the association between trap types and stratal stacking patterns.
Article
Energy & Fuels
Zhenghong Yu, Si Chen, Weidong Xie, Shu'e Zhao, Jianghao Ma, Tianhao Gong
Summary: This study identifies five types of sedimentary microfacies and analyzes the major diagenetic processes in sandstones through core observation and logging data. The results show that grain size is the primary controlling factor for reservoir quality, and it is influenced by sedimentary microfacies and diagenetic processes, which collectively affect the porosity and permeability of the reservoir.
Article
Energy & Fuels
Zhong Chen, Wei Wei, Yongchao Lu, Jingyu Zhang, Shihui Zhang, Si Chen
Summary: This study investigates the spatiotemporal distribution pattern of sand bodies within the Pinghu Formation using prestack seismic inversion and detailed analysis of petrology, well log, and seismic facies. The results reveal the influence of the interplay between fluvial and tidal driving forces on sedimentary facies and sand body distribution. The study also highlights the importance of sea level changes in shaping the distribution patterns and quality of reservoir and source rocks.
Article
Thermodynamics
Weidong Xie, Meng Wang, Si Chen, Veerle Vandeginste, Zhenghong Yu, Hua Wang
Summary: This study simulated the competitive adsorption behavior of CO2 and CH4 at in-situ conditions in shale gas reservoirs and analyzed the effects of binary gas components, shale properties, and pore structure on the CO2 adsorption affinity. Mathematical and geological models for CO2 injection into the Longmaxi shale gas reservoir to enhance CH4 recovery and achieve carbon sequestration were established based on experimental and reservoir parameters, and the feasibility and expected benefits were discussed.
Article
Energy & Fuels
Ming Yuan, Songqi Pan, Zhenhua Jing, Stefanie Poetz, Quan Shi, Yuanjia Han, Caineng Zou
Summary: Oil migration affects the reliability of molecular maturity parameters. Analysis of samples from a shaly sequence subjected to intrasource migration showed higher hydrocarbon maturity parameters in siltstones compared to shales. In contrast, non-hydrocarbons indicated lower maturity in siltstones due to smaller molecular cores, longer alkyl side chains, and higher enrichment of Ox species. These differences are attributed to petroleum migration, with hydrocarbons and non-hydrocarbons having different migration behaviors based on their properties.
INTERNATIONAL JOURNAL OF COAL GEOLOGY
(2023)
Article
Geochemistry & Geophysics
Wei Wei, Xi Chen, Hong-Fei Ling, Fei Wu, Lin-Hui Dong, Songqi Pan, Zhenhua Jing, Fang Huang
Summary: Early animals underwent multiple-phase radiations and extinctions from the late Ediacaran to early Cambrian. Oxygen likely played a crucial role in these evolutionary events, although there is ongoing debate regarding marine redox evolution during this period. The emerging vanadium (V) isotope system provides a better understanding of short-term perturbations to global ocean redox conditions. This study analyzed V isotope compositions (851V) of organic-rich cherts and black shales from the Yangtze Block, South China, to reconstruct the temporal variation of open-ocean seawater 851V values.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geochemistry & Geophysics
Zhengfu Zhao, Xiongqi Pang, Caineng Zou, Alexander J. Dickson, Anirban Basu, Zhaojie Guo, Songqi Pan, Arne T. Nielsen, Niels H. Schovsbo, Zhenhua Jing, Tais W. Dahl
Summary: The SPICE event is a significant carbon cycle perturbation in the Cambrian period, accompanied by climate changes and mass extinction of shallow-shelf fauna. The exact timing, duration, and extent of changing redox conditions across the SPICE event, as well as its influences on biotic evolution, remain unclear.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Si Chen, Rui Zhao, Changwei Chen, Hua Wang, Jianghao Ma, Tianhao Gong, Zhenghong Yu
Summary: The Qikou Sag in the Bohai Bay Basin experienced tectonic and sedimentary evolution in stages 2-4, resulting in the deposition of oil-bearing sedimentary rocks. The depositional system exhibited retrogradation and then progradation in stage 2, retrogradation in stage 3, and upward coarsening and progradation in stage 4. These different stages corresponded to three episodic stages of rising and falling lake levels during the Paleogene.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Fulin Meng, Huajun Gan, Hua Wang, Si Chen, Se Gong, Taifei Wu
Summary: This study collected 200 single detrital zircons from two sandstone samples in order to better understand the provenance and evolution of the submarine channels of Huangliu and Yinggehai Formation in the Ledong area, the Yinggehai Basin, and carried out U-Pb dating. The results showed that the detrital zircon ages from the submarine channel of Huangliu Formation had a narrow range, while those from the submarine channel of Yinggehai Formation had a wide range. The provenance of the submarine channels was further analyzed, and the transition of provenance from near source to distant source was attributed to the uplift of the Tibet Plateau during Pliocene.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Energy & Fuels
Caineng Zou, Songtao Wu, Zhi Yang, Songqi Pan, Guofeng Wang, Xiaohua Jiang, Modi Guan, Cong Yu, Zhichao Yu, Yue Shen
Summary: Carbon dioxide storage and utilization has become an inevitable trend and choice for sustainable development due to global climate change and carbon neutrality. The carbon industry, which focuses on CO2 capture, utilization, and storage (CCUS/CCS), is emerging as a strategic industry under the goal of carbon neutrality. The development of a low-cost and energy-efficient carbon industry system based on CCUS/CCS is crucial for achieving carbon neutrality and clean energy utilization globally.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2023)
Article
Energy & Fuels
Caineng Zou, Jianming Li, Xi Zhang, Xu Jin, Bo Xiong, Huidi Yu, Xiaodan Liu, Shanyu Wang, Yiheng Li, Lin Zhang, Sheng Miao, Dewen Zheng, Hongjun Zhou, Jiani Song, Songqi Pan
Summary: Under China's strategic goal of carbon peaking and carbon neutrality, hydrogen as a renewable, clean, and efficient secondary energy source, with abundant resources, diverse sources, high combustion calorific value, cleanliness, various forms of utilization, energy storage mediums, and good security, will become a realistic way to achieve deep decarbonization in energy, transportation, petrochemical, and other fields, and an important replacement energy source for building a modern clean energy system in China. Therefore, accelerating the development of hydrogen energy has become a global consensus.
NATURAL GAS INDUSTRY B
(2022)
Article
Energy & Fuels
Zou Caineng, Ma Feng, Pan Songqi, Lin Minjie, Zhang Guosheng, Xiong Bo, Wang Ying, Liang Yingbo, Yang Zhi
Summary: Energy is crucial for human development and societal progress. The co-evolution of energy sources and human civilization has had a significant impact on the Earth system and carbon cycle, leading to climate change. The transition to green energy and achieving carbon neutrality are inevitable trends. Building green energy communities is a fundamental measure to create a new energy system. China is speeding up its energy revolution to become a powerful energy nation.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2022)
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)