Article
Engineering, Marine
Zhifeng Wan, Junsheng Luo, Xiaolu Yang, Wei Zhang, Jinqiang Liang, Lihua Zuo, Yuefeng Sun
Summary: This study focuses on the Hakon Mosby Mud Volcano in the southwestern Barents Sea and examines its fluid flow and heat transfer. By using various data and methods, the study reveals the distribution and resource potential of gas hydrates in mud volcano development areas from a thermodynamic perspective. The findings provide a theoretical basis for the research, exploration, and exploitation of gas hydrate accumulation under a fluid seepage tectonic environment.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Nele Behrendt, Walter Menapace, Gerhard Bohrmann, Matthias Zabel, Achim J. Kopf
Summary: This study presents the pore water data of mud volcanoes in the Mediterranean Sea, revealing strong depletion of certain substances and striking water isotope ratios. The findings provide new insights into the deep origins of these mud volcanoes.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Engineering, Chemical
Fanny Thomas, Didier Dalmazzone, Jeffrey F. Morris
Summary: The wetting characteristics of ice-like clathrate hydrates at atmospheric pressure were studied using a new experimental method to measure the contact angle of various liquids. The results showed that the hydrate surface is water-wetting.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Geochemistry & Geophysics
Adriano Mazzini, Grigorii Akhmanov, Michael Manga, Alessandra Sciarra, Ayten Huseynova, Arif Huseynov, Ibrahim Guliyev
Summary: Azerbaijan hosts the highest density of subaerial mud volcanoes on Earth, with Lokbatan possibly being one of the most active mud volcanoes, exhibiting impressive bursting events every similar to 5 years. Research suggests that Lokbatan has a unique self-sealing mechanism allowing for faster recharging and more frequent and powerful explosive episodes.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Tingting Wu, Xiguang Deng, Huiqiang Yao, Bin Liu, Jinfeng Ma, Syed Waseem Haider, Zongze Yu, Lifeng Wang, Miao Yu, Jianfei Lu, Engr Naimatullah Sohoo, Noor Ahmed Kalhoro, Sanober Kahkashan, Jiangong Wei
Summary: During the geological survey of the Makran Continental Margin offshore Pakistan in 2018, a total of twelve mud volcanoes and three pockmarks were discovered, with six mud volcanoes and one pockmark found to be actively releasing gas. The study also revealed the presence of gas hydrate decomposition in the deep subsurface, which could contribute to the intermittent mud volcano activities and potential pockmark formation. The findings suggest that tectonic uplifting, seismic-induced shock, and fluid overpressure play significant roles in the formation and development of mud volcanoes in the area.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geochemistry & Geophysics
Ellen Lalk, Thomas Pape, Danielle S. Gruen, Norbert Kaul, Jennifer S. Karolewski, Gerhard Bohrmann, Shuhei Ono
Summary: This study investigates submarine gas hydrate deposits from different regions of the world's oceans using isotope analysis, providing insights into the source and generation depth of methane. The findings suggest that the isotopic composition of methane can provide information about microbial and thermogenic sources, and the apparent temperature can be used to infer the depth of methane generation.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geochemistry & Geophysics
Michael Riedel, Tim Freudenthal, Jorg Bialas, Cord Papenberg, Matthias Haeckel, Markus Bergenthal, Thomas Pape, Gerhard Bohrmann
Summary: The study found that there is no significant gas hydrate saturation in the sediments of the Danube deep sea fan in the Black Sea, but there is free gas at the depth of the BSR. The current base of the gas hydrate stability zone is about 20 meters shallower than the BSR. Analysis of seismic data revealed the migration of free gas upwards forming new reflections, indicating that the gas hydrate system is still responding to climate changes.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Francis Odonne, Patrice Imbert, Dominique Remy, Germinal Gabalda, Adil A. Aliyev, Orhan R. Abbasov, Elnur E. Baloglanov, Victoria Bichaud, Remy Juste, Matthieu Dupuis, Sylvain Bonvalot
Summary: The study reveals that the morphology contrast between flat and conical mud volcanoes in Azerbaijan is influenced by both surface and subsurface structures, with different growth mechanisms and depth of mud chambers for each type of volcano. Flat mud volcanoes primarily grow through radial expansion and compression of the flanks, while conical mud volcanoes grow by flow stacking in the summit caldera, constrained by the caldera rim.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
A. Yu Manakov, O. M. Khlystov, A. K. Sagidullin, T. P. Adamova, A. Khabuev, T. Rodionova, A. S. Yunoshev
Summary: The structure, morphology, and composition of natural gas hydrates sampled from the Kedr-1 mud volcano (Lake Baikal) were studied, revealing a cubic structure II with about 14% ethane in the gas. A unique porous monolithic hydrate layer was found in one sample, sandwiched between layers of hydrate granules, with similar structures and compositions. Possible mechanisms behind the formation of these objects were discussed.
JOURNAL OF STRUCTURAL CHEMISTRY
(2021)
Article
Food Science & Technology
Ann Mary Kollemparembil, Shubhangi Srivastava, Viktoria Zettel, Bernhard Gatternig, Antonio Delgado, Mario Jekle, Bernd Hitzmann
Summary: This study investigates the use of CO2 gas hydrates (GH) as a leavening agent in black-and-white cookies, replacing ammonium bicarbonate. Three concentrations of GH are tested to determine the optimal amount for good leavening effect. However, the sudden drop in temperature caused by GH has a detrimental effect on the cookie dough. An innovative kneading method in a high-temperature closed mixing unit is developed to address this issue. The use of GH results in higher specific volume of the cookies compared to ammonium bicarbonate, while maintaining acceptable texture characteristics. The amount of acrylamide is reduced from 24.8 μg/Kg to around 18 μg/Kg. This study demonstrates the possibility of using CO2 GH as a leavening agent for healthier black-and-white cookies and other products.
Article
Geosciences, Multidisciplinary
Jiangong Wei, Tingting Wu, Linqi Zhu, Yunxin Fang, Jinqiang Liang, Hailong Lu, Wenjiu Cai, Zhiyuan Xie, Peixin Lai, Jun Cao, Tianbang Yang
Summary: The analysis of gas hydrate samples from the Qiongdongnan basin of the South China Sea revealed that methane is the main component of the hydrate-bound gas, along with other hydrocarbon gases, suggesting a mixture of microbial and thermogenic gases. Raman spectroscopy showed a co-existence of structure I and structure II gas hydrates in the samples, indicating that natural gas hydrate resources might be underestimated.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Multidisciplinary Sciences
Alexei Remizovschi, Rahela Carpa
Summary: Mud volcanoes are natural hydrocarbon hotbeds with unique microbial communities, but current data is scattered. To address this, researchers have built the first biologically oriented database muddy_db and integrated mud volcano data using a custom Natural Language Processing pipeline muddy_mine.
Article
Geosciences, Multidisciplinary
Joe Cartwright, Chris Kirkham, D. Nicolas Espinoza, David James, Neil Hodgson
Summary: This study investigates the depletion zones in the western Nile Cone, offshore Egypt, and describes their characteristics and relationship with the surrounding stratigraphy. A subset of 86 depletion zones associated with mud volcanoes were analyzed using a 3D seismic survey. These depletion zones are characterized by circular to elliptical planforms with a bowl or conical geometry, and they show truncational stratal relationships with their parent stratigraphic unit. A model for the evolution of depletion zones is proposed based on previous models developed for single source layer plumbing systems.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Chen Chen, Weihao Dong, Qiang Ren, Hongda Chen, Chunguang Li, Mingming Wen
Summary: A mid-infrared (MIR) CO2-sensing system was developed to measure dissolved CO2 in seawater for natural gas hydrate (NGH) exploration. The system utilized wavelength modulation spectroscopy (WMS) with an interband cascade laser (ICL), an optical multipass gas cell (MPGC), and an MIR mercury cadmium telluride detector. By optimizing the operating temperature, pressure, and modulation depth, a minimum detection limit (MDL) of 11 ppbv was achieved with an integration time of 145 s. Deep-sea testing in the northern South China Sea validated the satisfactory performance of the sensing system for NGH exploration.
IEEE SENSORS JOURNAL
(2023)
Article
Environmental Sciences
Yuki Mitsutome, Ko Agena, Tomohiro Toki, Ke-Han Song, Ryuichi Shinjo, Akira Ijiri
Summary: This study investigates the chemical and isotopic compositions of pore water extracted from surface sediments collected from submarine mud volcanoes off Tanegashima, Japan. The results show the supply of fluids from deep sub-seafloor and their advection velocities differ for each mud volcano. The study also reveals the influence of adsorption onto sediments on the boron isotope ratio of pore water, which is related to the activity level of the mud volcanoes.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Leonardo Tamborrino, Tobias Himmler, Marcus Elvert, Stefano Conti, Alessandro F. Gualtieri, Daniela Fontana, Gerhard Bohrmann
MARINE AND PETROLEUM GEOLOGY
(2019)
Article
Geosciences, Multidisciplinary
Miriam Roemer, Heiko Sahling, Christian dos Santos Ferreira, Gerhard Bohrmann
GEO-MARINE LETTERS
(2020)
Article
Geochemistry & Geophysics
T. Pape, S. Bunz, W. -L. Hong, M. E. Torres, M. Riedel, G. Panieri, A. Lepland, C. -W. Hsu, P. Wintersteller, K. Wallmann, C. Schmidt, H. Yao, G. Bohrmann
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geosciences, Multidisciplinary
Timo Zander, Matthias Haeckel, Ingo Klaucke, Joerg Bialas, Dirk Klaeschen, Cord Papenberg, Thomas Pape, Christian Berndt, Gerhard Bohrmann
MARINE AND PETROLEUM GEOLOGY
(2020)
Article
Geosciences, Multidisciplinary
M. Riedel, T. Freudenthal, M. Bergenthal, M. Haeckel, K. Wallmann, E. Spangenberg, J. Bialas, G. Bohrmann
MARINE AND PETROLEUM GEOLOGY
(2020)
Article
Geochemistry & Geophysics
Min Luo, Marta E. Torres, Wei-Li Hong, Thomas Pape, Julia Fronzek, Steffen Kutterolf, Joshu J. Mountjoy, Alan Orpin, Susann Henkel, Katrin Huhn, Duofu Chen, Sabine Kasten
EARTH AND PLANETARY SCIENCE LETTERS
(2020)
Article
Geochemistry & Geophysics
Thomas Pape, Livio Ruffine, Wei-Li Hong, Nabil Sultan, Vincent Riboulot, Carl A. Peters, Martin Koelling, Matthias Zabel, Sebastien Garziglia, Gerhard Bohrmann
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geochemistry & Geophysics
M. Riedel, H. Villinger, T. Freudenthal, T. Pape, S. Bunz, G. Bohrmann
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2020)
Article
Geochemistry & Geophysics
M. Zabel, R. N. Glud, H. Sanei, M. Elvert, T. Pape, P-C Chuang, E. Okuma, P. Gepraegs, M. Koelling
Summary: In the past 20 years, the exploration of deep ocean trenches has revealed surprising insights into the variety of life and carbon turnover rates in these extreme environments. New data on pore water profiles from deep-sea trenches provide evidence of active degradation processes in the buried layers, comparable to shallower water depths with higher organic material content. The findings highlight the role of sedimentation dynamics in deep-sea trenches in fueling the deep hadal biosphere and contribute to our understanding of the function of deep-sea trenches and the hadal carbon cycle.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geochemistry & Geophysics
T. Freudenthal, H. Villinger, M. Riedel, T. Pape
Summary: During the retrieval of the drill string, borehole temperatures can be measured, but interpretation is challenging due to interference from drilling operations. This study developed a modeling approach to estimate undisturbed heat flux and compare measured and simulated temperatures.
MARINE GEOPHYSICAL RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Yiting Tseng, Miriam Roemer, Saulwood Lin, Thomas Pape, Christian Berndt, Tzu-Ting Chen, Charles K. Paull, David W. Caress, Gerhard Bohrmann
Summary: Hydroacoustic surveys in the accretionary wedge southwest of Taiwan identified an active hydrocarbon seepage area known as Yam Seep, covering approximately 49,000 m(2) on the northern crest of the Four-Way Closure Ridge. Data from multibeam and side-scan sonar revealed rugged topography and high seafloor backscatter in the area. Further investigations using video sleds, sediment sampling, and drilling confirmed that the seepage has been ongoing for thousands of years and is characterized by intensely fractured methane-derived carbonates. Gas bubble emission sites were detected in the water column in 2019, indicating the presence of gas hydrates in the subsurface.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Michael Riedel, Joerg Bialas, Heinrich Villinger, Thomas Pape, Matthias Haeckel, Gerhard Bohrmann
Summary: The study reveals uncertainties in the geothermal regime of the Danube deep-sea fan, which may be linked to fast sedimentation, slumping, variations in sediment properties, topographic effects, and climate-induced changes. These factors contribute to deviations in heat flow measurements and predictions of the base of the gas hydrate stability zone.
Article
Environmental Sciences
Miriam Roemer, Chieh-Wei Hsu, Markus Loher, Ian R. MacDonald, Christian S. Santos Ferreira, Thomas Pape, Susan Mau, Gerhard Bohrmann, Heiko Sahling
FRONTIERS IN MARINE SCIENCE
(2019)
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)