Artigos de revistas: "Exploration marine"

1

Glasby, G. P. "Marine mineral exploration". Marine Geology 83, n.º 1-4 (setembro de 1988): 321. http://dx.doi.org/10.1016/0025-3227(88)90066-7.

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Roonwal, G. S. "Marine mineral exploration". Ore Geology Reviews 3, n.º 4 (agosto de 1988): 397–98. http://dx.doi.org/10.1016/0169-1368(88)90033-9.

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3

Cadigan, R. A. "Marine Mineral Exploration". Ore Geology Reviews 4, n.º 4 (agosto de 1989): 363. http://dx.doi.org/10.1016/0169-1368(89)90011-5.

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4

Spiess, Fren N. "Marine Mineral Exploration". Eos, Transactions American Geophysical Union 69, n.º 5 (1988): 60. http://dx.doi.org/10.1029/88eo00052.

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5

Cronan, D. S. "Marine mineral exploration". Journal of Geochemical Exploration 30, n.º 1-3 (janeiro de 1988): 331–32. http://dx.doi.org/10.1016/0375-6742(88)90071-4.

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6

Heinson, Graham, Antony White, Steven Constable e Kerry Key. "Marine self potential exploration*". Exploration Geophysics 30, n.º 1-2 (março de 1999): 1–4. http://dx.doi.org/10.1071/eg999001.

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7

Fenchel, Tom, e Franz Uiblein. "Marine Biology Research– Ocean Exploration and Marine Ecosystems". Marine Biology Research 3, n.º 4 (agosto de 2007): 189–90. http://dx.doi.org/10.1080/17451000701496422.

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Ongkiehong, Leo, e Willem Huizer. "Method for marine seismic exploration". Journal of the Acoustical Society of America 78, n.º 1 (julho de 1985): 285. http://dx.doi.org/10.1121/1.392516.

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9

Yaguchi, Yoshikazu. "The Flow of Marine Resources Exploration". Journal of The Japan Institute of Marine Engineering 50, n.º 5 (2015): 620–25. http://dx.doi.org/10.5988/jime.50.620.

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10

Denney, Dennis. "Hydrocarbon Exploration Using Marine Electromagnetic Techniques". Journal of Petroleum Technology 57, n.º 08 (1 de agosto de 2005): 65–69. http://dx.doi.org/10.2118/0805-0065-jpt.

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11

Lee, Ho-Young, Nam-Hyung Koo, Byoung-Yeop Kim, Moohee Kang e Keun-Pil Park. "Status of Marine Seismic Exploration Technology". Journal of the Korean Society of Mineral and Energy Resources Engineers 56, n.º 1 (1 de fevereiro de 2019): 86–106. http://dx.doi.org/10.32390/ksmer.2019.56.1.086.

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12

Bowles, Larry G. "Marine mammals and offshore geophysical exploration". Leading Edge 5, n.º 4 (abril de 1986): 58–60. http://dx.doi.org/10.1190/1.1439261.

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Gjessing, Dag KT, e Jens F. Hjelmstad. "4843597 System for marine seismic exploration". Deep Sea Research Part B. Oceanographic Literature Review 37, n.º 1 (janeiro de 1990): 103. http://dx.doi.org/10.1016/s0198-0254(05)80017-2.

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14

Stocker, Michael. "Noisy oil exploration disrupts marine life". Nature 473, n.º 7347 (maio de 2011): 285. http://dx.doi.org/10.1038/473285b.

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15

Sansone, Clementina, e Christophe Brunet. "Marine Algal Antioxidants". Antioxidants 9, n.º 3 (2 de março de 2020): 206. http://dx.doi.org/10.3390/antiox9030206.

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16

Rose, Naomi A. "Marine Mammal Welfare: An Exploration of the World of Marine Mammals". Journal of Applied Animal Welfare Science 2, n.º 3 (julho de 1999): 255–57. http://dx.doi.org/10.1207/s15327604jaws0203_10.

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Yu, Yin, Yun Li, Feng Xiao e Fang Zhou. "Application of D-S Evidence Theory in Marine Environmental Security Posture Assessment". E3S Web of Conferences 370 (2023): 01003. http://dx.doi.org/10.1051/e3sconf/202337001003.

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In the past, in geological exploration, marine development and offshore safety management, we have realized that the development and damage to the marine environment are very serious and important. While technology has improved rapidly over the years, the marine environment is changing faster than geological exploration, development and management. We must ensure the safety of hydrographic, meteorological conditions and sea wind weather forecasting. Due to the limitations of geological exploration techniques and methods, many problems are difficult to deal with or unpredictable when analyzing the factors that affect the management of the marine environment. Therefore, we need to solve these problems by some new means.

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18

Steven, Ray, Zalfa Humaira, Yosua Natanael, Fenny M. Dwivany, Joko P. Trinugroho, Ari Dwijayanti, Tati Kristianti et al. "Marine Microbial-Derived Resource Exploration: Uncovering the Hidden Potential of Marine Carotenoids". Marine Drugs 20, n.º 6 (26 de maio de 2022): 352. http://dx.doi.org/10.3390/md20060352.

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Microbes in marine ecosystems are known to produce secondary metabolites. One of which are carotenoids, which have numerous industrial applications, hence their demand will continue to grow. This review highlights the recent research on natural carotenoids produced by marine microorganisms. We discuss the most recent screening approaches for discovering carotenoids, using in vitro methods such as culture-dependent and culture-independent screening, as well as in silico methods, using secondary metabolite Biosynthetic Gene Clusters (smBGCs), which involves the use of various rule-based and machine-learning-based bioinformatics tools. Following that, various carotenoids are addressed, along with their biological activities and metabolic processes involved in carotenoids biosynthesis. Finally, we cover the application of carotenoids in health and pharmaceutical industries, current carotenoids production system, and potential use of synthetic biology in carotenoids production.

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19

Ma, Feifei. "Practical Exploration of the Inheritance of Shanghai Marine Intangible Cultural Heritage Campus". Highlights in Art and Design 4, n.º 1 (28 de agosto de 2023): 105–6. http://dx.doi.org/10.54097/hiaad.v4i1.12001.

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The marine intangible cultural heritage of Shanghai contains unique marine history and cultural information, and has rich creative attributes and industrial development and utilization value. Starting from the marine intangible cultural heritage culture in Shanghai, this project will hold the marine intangible cultural heritage season through the university campus platform, and use this as a basis to attract more people to pay attention to the marine intangible cultural heritage culture and achieve the purpose of inheritance.

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Panintingjati Brotosudarmo, Tatas Hardo, Leenawaty Limantara e Delianis Pringgenies. "Recent exploration of bioactive pigments from marine bacteria". ScienceAsia 47, n.º 3 (2021): 265. http://dx.doi.org/10.2306/scienceasia1513-1874.2021.050.

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21

Sternlicht, D. D. "Looking back: a history of marine seismic exploration". IEEE Potentials 18, n.º 1 (fevereiro de 1999): 36–38. http://dx.doi.org/10.1109/45.747245.

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22

Constable, Steven. "Ten years of marine CSEM for hydrocarbon exploration". GEOPHYSICS 75, n.º 5 (setembro de 2010): 75A67–75A81. http://dx.doi.org/10.1190/1.3483451.

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Marine controlled-source electromagnetic (CSEM) surveying has been in commercial use for predrill reservoir appraisal and hydrocarbon exploration for [Formula: see text]. Although a recent decrease has occurred in the number of surveys and publications associated with this technique, the method has become firmly established as an important geophysical tool in the offshore environment. This is a consequence of two important aspects associated with the physics of the method: First, it is sensitive to high electrical resistivity, which, although not an unambiguous indicator of hydrocarbons, is an important property of economically viable reservoirs. Second, although the method lacks the resolution of seismic wave propagation, it has a much better intrinsic resolution than potential-field methods such as gravity and magnetic surveying, which until now have been the primary nonseismic data sets used in offshore exploration. Although by many measures marine CSEM is still in its infancy, the reliability and noise floors of the instrument systems have improved significantly over the last decade, and interpretation methodology has progressed from simple anomaly detection to 3D anisotropic inversion of multicomponent data using some of the world’s fastest supercomputers. Research directions presently include tackling the airwave problem in shallow water by applying time-domain methodology, continuous profiling tools, and the use of CSEM for reservoir monitoring during production.

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23

Laws, R. M., D. Halliday, J. ‐F Hopperstad, D. Gerez, M. Supawala, A. Özbek, T. Murray e E. Kragh. "Marine vibrators: the new phase of seismic exploration". Geophysical Prospecting 67, n.º 6 (14 de novembro de 2018): 1443–71. http://dx.doi.org/10.1111/1365-2478.12708.

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Wang, Xiangchun, Xueliang Li, Haibing Zhang, Xiaozhu Hao e Kaiben Yu. "Optical fiber marine seismic exploration system feasibility study". Acta Geophysica 67, n.º 5 (17 de julho de 2019): 1403–11. http://dx.doi.org/10.1007/s11600-019-00333-y.

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25

Kil, Sang Cheol, Kwan Soon Park e Jin Dong Cho. "Global Trends of Marine Petroleum Exploration Science Information". Economic and Environmental Geology 47, n.º 6 (28 de dezembro de 2014): 673–81. http://dx.doi.org/10.9719/eeg.2014.47.6.673.

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26

Hekinian, R. "Marine mineral exploration. Elsevier oceanography series, Vol. 41". Sedimentary Geology 58, n.º 1 (julho de 1988): 97. http://dx.doi.org/10.1016/0037-0738(88)90011-5.

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Sarker, Ashish Kumar, Md Anwarul Haque, Mohammad Sayful Islam, Md Ajijur Rahman e Md Anwar Ul Islam. "Exploration of antibacterial metabolites producing marine bacteria from Sundarbans, Bangladesh". Bangladesh Pharmaceutical Journal 18, n.º 1 (1 de junho de 2015): 53–60. http://dx.doi.org/10.3329/bpj.v18i1.23516.

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To combat the increasing numbers of antibiotic resistant strains of pathogenic bacteria new source of antibacterial agents are desperately needed. This study was aimed to discover new marine bacteria having antibacterial activity from marine soil samples of Sundarbans, Bangladesh. Using starch-casein-nitrate-agar medium thirty nine marine bacteria colonies were isolated as pure isolates from nine marine soil samples. Each of the isolates was preserved in both short term and long term basis. Based on the aerial and substrate mycelia color of the isolates they were grouped into five color series and were screened for their antibacterial activity against a series of test bacteria. Among thirty nine pure isolates twenty four isolates (61.5%) exhibited moderate to high activity against three grampositive and four gram-negative bacteria. This is due to the antibacterial metabolites secreted in the medium by most of the isolates. It suggested that Sundarbans may be an interesting, valuable and potential source for the exploration of novel marine bacteria with the potential to yield useful new antibacterial secondary metabolites of pharmaceutical interest.Bangladesh Pharmaceutical Journal 18(1): 53-60, 2015

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Liu, Guochang, Wenping Cao, Guojun Zhang, Zhihao Wang, Haoyu Tan, Jinwei Miao, Zhaodong Li, Wendong Zhang e Renxin Wang. "Design and Simulation of Flexible Underwater Acoustic Sensor Based on 3D Buckling Structure". Micromachines 12, n.º 12 (10 de dezembro de 2021): 1536. http://dx.doi.org/10.3390/mi12121536.

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The exploration of marine resources has become an essential part of the development of marine strategies of various countries. MEMS vector hydrophone has great application value in the exploration of marine resources. However, existing MEMS vector hydrophones have a narrow frequency bandwidth and are based on rigid substrates, which are not easy to be bent in the array of underwater robots. This paper introduces a new type of flexible buckling crossbeam–cilium flexible MEMS vector hydrophone, arranged on a curved surface by a flexible substrate. A hydrophone model in the fluid domain was established by COMSOL Multiphysics software. A flexible hydrophone with a bandwidth of 20~4992 Hz, a sensitivity of −193.7 dB, excellent “8” character directivity, and a depth of concave point of 41.5 dB was obtained through structured data optimization. This study plays a guiding role in the manufacture and application of flexible hydrophones and sheds light on a new way of marine exploration.

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Boswell, Ray, Craig Shipp, Thomas Reichel, Dianna Shelander, Tetsuo Saeki, Matthew Frye, William Shedd, Timothy S. Collett e Daniel R. McConnell. "Prospecting for marine gas hydrate resources". Interpretation 4, n.º 1 (1 de fevereiro de 2016): SA13—SA24. http://dx.doi.org/10.1190/int-2015-0036.1.

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As gas hydrate energy assessment matures worldwide, emphasis has evolved away from confirmation of the mere presence of gas hydrate to the more complex issue of prospecting for those specific accumulations that are viable resource targets. Gas hydrate exploration now integrates the unique pressure and temperature preconditions for gas hydrate occurrence with those concepts and practices that are the basis for conventional oil and gas exploration. We have aimed to assimilate the lessons learned to date in global gas hydrate exploration to outline a generalized prospecting approach as follows: (1) use existing well and geophysical data to delineate the gas hydrate stability zone (GHSZ), (2) identify and evaluate potential direct indications of hydrate occurrence through evaluation of interval of elevated acoustic velocity and/or seismic events of prospective amplitude and polarity, (3) mitigate geologic risk via regional seismic and stratigraphic facies analysis as well as seismic mapping of amplitude distribution along prospective horizons, and (4) mitigate further prospect risk through assessment of the evidence of gas presence and migration into the GHSZ. Although a wide range of occurrence types might ultimately become viable energy supply options, this approach, which has been tested in only a small number of locations worldwide, has directed prospect evaluation toward those sand-hosted, high-saturation occurrences that were presently considered to have the greatest future commercial potential.

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Zhu, Boshan, Xin Wang, Ziwen Ren, Hanzun Zhang, Dapeng Liu e Fang Wang. "Each Personality Performs Its Own Function: Boldness and Exploration Lead to Differences in the Territoriality of Swimming Crabs (Portunus trituberculatus)". Biology 12, n.º 6 (19 de junho de 2023): 883. http://dx.doi.org/10.3390/biology12060883.

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The boldness and exploration of animals are closely related to their territoriality, with relevant studies having important applications in wildlife conservation. The present study establishes a behavior observation system measuring the boldness and exploration of swimming crabs (Portunus trituberculatus) to clarify the relationship between boldness, exploration, and territoriality, as well as to provide a behavioral basis for the construction of marine ranching. The behavioral tests of crabs in a safe environment (predator absence), a dangerous environment (predator presence), and habitat selection (complex and simple habitat) are analyzed. A territorial behavior score is calculated as an evaluation index of territoriality. The correlation between the swimming crabs’ boldness, exploration, and territoriality is analyzed. The results show that there is no boldness-exploratory behavioral syndrome. In predator absence or presence environments, boldness is dominant in territorial behavior and positively correlates with territoriality. Exploration plays a vital role in habitat selection tests but has no significant correlation with territoriality. The experimental results preliminarily show that boldness and exploration jointly develop the difference in the space utilization ability of crabs with different personalities, improving the adaptability of swimming crabs in different conditions. The results of this study supplement the behavior rules of the dominant species of typical fishery resources in marine ranches, providing a basis for achieving animal behavior management function in marine ranches.

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Yang, Wei, e Hao Kong. "Exploration and Development of Marine Renewable Energy in Fujian Province Towards Carbon Neutrality". E3S Web of Conferences 406 (2023): 02015. http://dx.doi.org/10.1051/e3sconf/202340602015.

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To achieve peak carbon emission and carbon neutrality, marine renewable energy plays an essential role in energy transition in China’s coastal areas. Fujian Province is not only exposed to a shortage of traditional energy resources, but also urgently needs to change its current coal-based energy structure to reduce carbon emissions. In contrast to the scarcity of fossil fuels, Fujian Province has rich marine energy reserves, with an abundant supply of offshore wind, wave, tidal, and ocean current energy. Therefore, the active development of low-carbon and carbon-free marine energy can increase the energy supply and alleviate energy shortages. Furthermore, it can optimize the structure of the energy sector in this region. This study analyzed the energy structure of the Fujian Province, the effort needed to reach the carbon neutrality goal, the reserves of marine energy resources, the background of marine energy development technology, and socio-economic conditions. We believe that the development of the marine energy is a critical action towards solving the current energy resource limitations in Fujian and subsequently propose relevant suggestions for marine energy industry development in Fujian Province in terms of development ideas and pathways.

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Venkateskumar, Krishnamoorthy, Subramani Parasuraman, Leow Y. Chuen, Veerasamy Ravichandran e Subramani Balamurgan. "Exploring Antimicrobials from the Flora and Fauna of Marine: Opportunities and Limitations". Current Drug Discovery Technologies 17, n.º 4 (8 de setembro de 2020): 507–14. http://dx.doi.org/10.2174/1570163816666190819141344.

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About 95% of earth living space lies deep below the ocean’s surface and it harbors extraordinary diversity of marine organisms. Marine biodiversity is an exceptional reservoir of natural products, bioactive compounds, nutraceuticals and other potential compounds of commercial value. Timeline for the development of the drug from a plant, synthetic and other alternative sources is too lengthy. Exploration of the marine environment for potential bioactive compounds has gained focus and huge opportunity lies ahead for the exploration of such vast resources in the ocean. Further, the evolution of superbugs with increasing resistance to the currently available drugs is alarming and it needs coordinated efforts to resolve them. World Health Organization recommends the need and necessity to develop effective bioactive compounds to combat problems associated with antimicrobial resistance. Based on these factors, it is imperative to shift the focus towards the marine environment for potential bioactive compounds that could be utilized to tackle antimicrobial resistance. Current research trends also indicate the huge strides in research involving marine environment for drug discovery. The objective of this review article is to provide an overview of marine resources, recently reported research from marine resources, challenges, future research prospects in the marine environment.

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Nascimento, Tiago, e Sandra Pereira Gama. "FishEye - An Integrated Marine Species' Visualization". International Journal of Creative Interfaces and Computer Graphics 9, n.º 2 (julho de 2018): 1–17. http://dx.doi.org/10.4018/ijcicg.2018070101.

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Despite the historical limitations associated with the study of marine species, current technology makes it possible to collect ocean animal data in a more accessible way, with a variety of tagging and tracking devices. Hence, such information is nowadays generated in large amounts, often in textual formats, making it difficult to interpret and analyze. Information visualization, due to its potential to represent large amounts of data while alleviating cognitive load associated with data interpretation, may help overcome this limitation. This article presents the visualization of a marine species that allows the representation and interactive exploration of species' telemetric data through an integrated dashboard with coordinated views. A species image recognition module was implemented together with the described visualization, enabling species recognition. Usability tests have validated its potential in making important patterns immediately perceivable and also showed that FishEye provides exploration and comparison mechanisms to obtain further relevant information.

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Kido, Yukari, Seiichi Miura, Yui Hashimoto, Kaoru Takizawa, Tetsuo No, Tetsuro Tsuru e Yoshiyuki Kaneda. "Progressive Development of IFREE Marine Exploration Open Source Database". JAMSTEC Report of Research and Development 3 (1 de março de 2006): 9–18. http://dx.doi.org/10.5918/jamstecr.3.9.

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Decostere, Bjorge, Joeri Coppens, Han Vervaeren, Siegfried E. Vlaeminck, Leen De Gelder, Nico Boon, Ingmar Nopens e Stijn W. H. Van Hulle. "Kinetic exploration of intracellular nitrate storage in marine microalgae". Journal of Environmental Science and Health, Part A 52, n.º 14 (26 de setembro de 2017): 1303–11. http://dx.doi.org/10.1080/10934529.2017.1364921.

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Fairhead, J. Derek, Christopher M. Green e Mark E. Odegard. "Satellite-derived gravity having an impact on marine exploration". Leading Edge 20, n.º 8 (agosto de 2001): 873–76. http://dx.doi.org/10.1190/1.1487298.

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Heinson, Graham, Antony White, David Robinson e Nader Fathianpour. "Marine self-potential gradient exploration of the continental margin". GEOPHYSICS 70, n.º 5 (setembro de 2005): G109—G118. http://dx.doi.org/10.1190/1.2057981.

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The self-potential (SP) method for mineral exploration is seldom used on land, primarily because of electrode noise problems and nonunique interpretations. Marine measurements of the horizontal gradient of the SP field, on the other hand, are relatively simple to make with an array of electrodes towed behind a ship. With low ship speeds of 5 to 10 km/hour, dense spatial sampling (∼1 m) can be obtained with resolution of better than 1 μV/m. In this paper we report on gradient SP data recorded on the continental shelf of South Australia by a horizontal array of towed electrodes approximately 20 m above the seafloor. Ocean waves and swells with periods of 5 to 15 s yielded large amplitude signals ±20 μV/m, but subseafloor mineralization produced SP gradient anomalies of ±50 μV/m and widths of 2 km or more in a number of parallel traverses. Integrating the observed SP gradients along each line delineated SP anomalies of amplitude up to −100 mV. Self-potential and magnetic anomaly data show limited spatial correlation and have different wavelengths, suggesting that SP sources are probably nonferrous minerals, such as graphite, and are deeper than the magnetic sources. The source of the SP signal is probably reduction-oxidation (redox) potential ([Formula: see text]) variations across a conducting body below the seafloor. We approximate the source as being two dimensional and find the most probable locations of line sources by an image reconstruction method. Numerical finite-element modeling of more realistic source regions suggests shallow, easterly dipping (∼15°) conductors of 1 Ω.m in the uppermost 2 km.

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Constable, Steven. "Marine electromagnetic methods—A new tool for offshore exploration". Leading Edge 25, n.º 4 (abril de 2006): 438–44. http://dx.doi.org/10.1190/1.2193225.

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Quist, Liina-Maija, e Anja Nygren. "Debating the unknowns of marine oil exploration in Mexico". Extractive Industries and Society 6, n.º 3 (julho de 2019): 855–62. http://dx.doi.org/10.1016/j.exis.2019.06.005.

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Ling, Jiaxuan, Wei Deng, Siqin Liu, Qingrui Chen, Shiwei Wei, Mengmeng Li e Shuliu Wei. "Research on numerical simulation method for 3D marine direct current resistivity". Journal of Physics: Conference Series 2718, n.º 1 (1 de março de 2024): 012054. http://dx.doi.org/10.1088/1742-6596/2718/1/012054.

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Abstract As one of the most important methods in marine electromagnetic exploration, the marine direct current (DC) resistivity method has been widely used in the exploration of marine minerals, oil and gas, as well as in large-scale engineered geological exploration and other fields. Efficient and high-precision forward algorithms are the foundation for an accurate quantitative interpretation of the marine DC resistivity method. We have implemented an efficient and high-precision forward modeling approach for 3D marine DC resistivity. First, the wave number domain anomalous potential control equations are obtained by performing a 2D Fourier transform along the horizontal direction based on the differential control equations satisfied by the marine DC anomalous potential. Instead of directly solving the 3D numerical simulation problem, we transform the 3D numerical simulation problem into multiple 1D numerical simulation problems in the wavenumber domain by dimensionality reduction for computational efficiency. Second, the boundary conditions of the governing equations are given to obtain the corresponding boundary value problems, and the anomalous potential is solved using the 1D finite element method in the wavenumber domain. Next, we perform a 2D inverse Fourier transform on the wave-number domain anomalous potential to obtain the spatial domain anomalous potential. Furthermore, compact operators are used to iteratively modify the potential and obtain high-precision numerical solutions. Finally, we demonstrate the correctness of the proposed algorithm’s solution strategy by using a hierarchical ocean model, and the efficiency of the proposed algorithm by using a spherical model.

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Liu, Yiqun, Hailong Lu e Yue Cui. "A Review of Marine In Situ Sensors and Biosensors". Journal of Marine Science and Engineering 11, n.º 7 (23 de julho de 2023): 1469. http://dx.doi.org/10.3390/jmse11071469.

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The exploration of the ocean is essential for the exploitation of marine resources and the sustainable development of human society. In order to assess both the health and the resources of the marine environment, a variety of chemical and biological sampling is needed. Traditionally, marine samples are collected on site and transported to a laboratory for analysis. Analytical methods are often tedious, and it is difficult to know the in situ real-time status. This review provides a comprehensive summary of the development of in situ chemical and biological sensors for the typical compounds in the ocean, including methane, radon, ferrous ion, carbon dioxide, microorganisms, pollutants, nutrients and seafood. Different types of sensors for each compound are highlighted, such as novel electrochemical and optical sensors. Commercial status of different sensors is introduced, and performance of representative sensors is compared and discussed deeply. The advantages and disadvantages of each sensing technique are analyzed and evaluated in detail. Finally, future prospects and work directions are presented, such as the deployment of these in situ sensors on fixed and/or moving platforms, development of microfluidic sensors and exploration of new antifouling materials and methods. This paper could serve as a resource for developing more advanced in situ chemical sensors and biosensors for marine scientific research, as well as related practical applications for monitoring marine resource exploration and exploitation and for environmental protection.

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Li, Suyi, Chunying Gu, Jiayu Yang, Yi Zhang, Shu Diao e Yanju Ji. "A review of marine controlled-source electromagnetic data preprocessing technology". AIP Advances 12, n.º 9 (1 de setembro de 2022): 090701. http://dx.doi.org/10.1063/5.0090082.

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The marine controlled-source electromagnetic (MCSEM) method is an important geophysical technique for seabed resource exploration. During the MCSEM exploration process, distortion and noise will inevitably appear in the original data collected by the receiver due to various interferences and geological factors. The data preprocessing technology, therefore, is essential to improve the data quality for further inversion explanation of the seabed’s geological structure. Through tracing and analyzing the relevant literature published over two decades on MCSEM data preprocessing technology, including data correction and noise suppression methods, this Review first introduces the basic principle of MCSEM exploration and then analyzes the advances, limitations, and challenges of its current application. Ultimately, this Review discusses the prospects of this technology, providing a reference to relevant industries and researchers.

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Zhong, Guangjian, Jing Zhao, Zhongquan Zhao, Guanghong Tu, Hai Yi, Wu Li, Junhui Yu e Changmao Feng. "Analysis of acidolysis hydrocarbon anomaly in the Chaoshan Depression of the Northern South China Sea and its response to reservoir properties". Journal of Physics: Conference Series 2682, n.º 1 (1 de janeiro de 2024): 012005. http://dx.doi.org/10.1088/1742-6596/2682/1/012005.

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Abstract Chaoshan Depression is a Mesozoic residual depression in the northeast of the South China Sea. It mainly develops two sets of Source rock, i.e., upper Triassic lower Jurassic shallow marine bathyal facies mudstone, lower Jurassic shallow marine shelf facies mudstone, upper Jurassic shallow marine reef limestone, and upper Jurassic basin floor fan sandstone, with good oil-gas exploration potential. It has gone through six tectonic evolution stages in the Mesozoic and Cenozoic, with strong uplift and denudation, developed fault structures, complex hydrocarbon accumulation conditions, and unknown hydrocarbon distribution laws. Analysing the Carbon Isotope Values of Acidolysis Hydrocarbons and Methane in Seabed Sediments through Detection δ 13C (‰) prediction of favourable oil-gas exploration zones, oil-gas traps, and types of oil-gas reservoirs is a fast and effective method for oil and gas geochemical exploration. The first detection of trace amounts of light and heavy hydrocarbon components and methane carbon isotope values in marine surface sediments at 200 stations in the Chaoshan Depression based on acidolysis δ 13C (‰), quantitative analysis of abundance and structural anomalies of light and heavy hydrocarbons using gas chromatography mass spectrometry, and quantitative analysis of carbon isotope values of light, heavy, and methane using the Kriging method δ13C (‰) plane distribution characteristics delineate two comprehensive anomaly zones for oil-gas exploration in the northeast and southwest of the Chaoshan Depression. CS depression is a petroleum depression, and DS-A structure is an oil gas structure.

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Stejskal, I. V. "EXPLORATION IN SENSITIVE AREAS: CONVINCING THE COMMUNITY". APPEA Journal 35, n.º 1 (1995): 822. http://dx.doi.org/10.1071/aj94059.

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Hadson Carnarvon Pty Ltd (Hadson), on behalf of the Joint Venture Partners, operates permits EP342 and TP/9 located at the northern end of Exmouth gulf, to the east of Cape Range peninsula, Western Australia. The Exmouth region is known for the Ningaloo Reef, and for its diving and recreational fishing. The area also supports a large commercial prawn fishery. Many marine areas in the Exmouth region are regarded as being environmentally sensitive with several areas of conservation value.The partners were committed to drilling two wells in EP342 and TP/9 in 1993 as part of the obligations under the permits. Public mistrust of, and an unfamiliarity with, the oil and gas industry gave the Exmouth community the perception that the EP342 drilling program would have a detrimental impact on the sensitive marine resources of the region and, hence, to the growing tourism industry in the region.Hadson developed a management strategy which involved an extensive local community education and consultation program. Activities for this program included presentations to various community and special interest groups and a two-day public exhibition in Exmouth. The management strategy also included commitment to statutory and voluntary environmental guidelines, and an impact assessment study.Hadson's communication program was successful on a local level: by the time drilling commenced, active opposition to the drilling program had diminished significantly. This drilling program showed the importance of involving the public in the plans of the company, of putting a 'face' to the company and of communicating environmental risk in a trustworthy manner.The State Government announced in July 1994 that petroleum exploration within Ningaloo Marine Park would not be permitted. This decision was not based on scientific evidence, but political strategy and a perception that in the Exmouth and wider community there was an innate 'fear' regarding the impact of the petroleum industry.

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Stewart, Robert R., James E. Gaiser, R. James Brown e Don C. Lawton. "Converted‐wave seismic exploration: Applications". GEOPHYSICS 68, n.º 1 (janeiro de 2003): 40–57. http://dx.doi.org/10.1190/1.1543193.

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Converted seismic waves (specifically, downgoing P‐waves that convert on reflection to upcoming S‐waves are increasingly being used to explore for subsurface targets. Rapid advancements in both land and marine multicomponent acquisition and processing techniques have led to numerous applications for P‐S surveys. Uses that have arisen include structural imaging (e.g., “seeing” through gas‐bearing sediments, improved fault definition, enhanced near‐surface resolution), lithologic estimation (e.g., sand versus shale content, porosity), anisotropy analysis (e.g., fracture density and orientation), subsurface fluid description, and reservoir monitoring. Further applications of P‐S data and analysis of other more complicated converted modes are developing.

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Li, Fengjiao, Zhengliang Huang, Xiaofeng Wang, Xiaofeng Liu, Wenhui Liu, Zhenghong Cai, Houyong Luo, Qingtao Wang e Dongdong Zhang. "Geochemical Characteristics of Graptolite Shale in the Pingliang Formation of the Ordos Basin, China: Implications for Organic Matter, Thermal Evolution, and Hydrocarbon Reservoir". Energies 15, n.º 21 (4 de novembro de 2022): 8238. http://dx.doi.org/10.3390/en15218238.

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Graptolite-rich shale is the main layer of shale gas resources in the southern marine sedimentary basin. Recently, shale gas resources were discovered in the Ordovician marine graptolite-rich strata in the Ordos Basin. The graptolite shale in the study area is different from the marine graptolite shale in the Yangtze plate in southern China, and further exploration is needed. This paper presents core samples of the graptolite-rich shale of the Pingliang Formation in the southwest Ordos Basin as research objects. The graptolite genus and graptolite shale characteristics were studied using core observation, electron microscopy, scanning electron microscopy, and geochemical analysis. We determined the role of the sedimentary environment and thermal maturation of graptolite shale in hydrocarbon formation and explored the possibility of hydrocarbon generation. Many graptolite epidermises provide buried organic matter. The quiet sea and low-energy marine environment create favorable conditions for preserving organic matter. The tectonic process resulted in the evolution stage in the oil generation window. Different types of pores formed the spaces of hydrocarbons. Therefore, the shale of the Pingliang Formation has shale oil exploration potential, which complements the shale gas in the northwestern margin of the basin, and provides new venues for shale oil and gas exploration in northern China.

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Swidinsky, Andrei, Sebastian Hölz e Marion Jegen. "On mapping seafloor mineral deposits with central loop transient electromagnetics". GEOPHYSICS 77, n.º 3 (1 de maio de 2012): E171—E184. http://dx.doi.org/10.1190/geo2011-0242.1.

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Electromagnetic methods are commonly employed in exploration for land-based mineral deposits. A suite of airborne, land, and borehole electromagnetic techniques consisting of different coil and dipole configurations have been developed over the last few decades for this purpose. In contrast, although the commercial value of marine mineral deposits has been recognized for decades, the development of suitable marine electromagnetic methods for mineral exploration at sea is still in its infancy. One particularly interesting electromagnetic method, which could be used to image a mineral deposit on the ocean floor, is the central loop configuration. Central loop systems consist of concentric transmitting and receiving loops of wire. While these types of systems are frequently used in land-based or airborne surveys, to our knowledge neither system has been used for marine mineral exploration. The advantages of using central loop systems at sea are twofold: (1) simplified navigation, because the transmitter and receiver are concentric, and (2) simplified operation because only one compact unit must be deployed. We produced layered seafloor type curves for two particular types of central loop methods: the in-loop and coincident loop configurations. In particular, we consider models inspired by real marine mineral exploration scenarios consisting of overburdens 0 to 5 m thick overlying a conductive ore body 5 to 30 m thick. Modeling and resolution analyses showed that, using a [Formula: see text] transmitting loop with 20 A of current, these two configurations are useful tools to determine the overburden depth to a conductive ore deposit and its thickness. In the most extreme case, absolute voltage errors on the order of 10 nV are required to resolve the base of a 30 m thick ore deposit. Whether such noise floors can be achieved in real marine environments remains to be seen.

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Robinson, Sam. "Early Twentieth-Century Ocean Science Diplomacy". Historical Studies in the Natural Sciences 50, n.º 4 (setembro de 2020): 384–410. http://dx.doi.org/10.1525/hsns.2020.50.4.384.

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This paper is a response to a 2018 call for greater understanding of how previous examples of marine science diplomacy could help shape present day efforts to draft a new law of the sea that protects marine biodiversity and conserves the marine environment. It tackles this through analysis of the various twists, turns, and challenges of early science diplomacy efforts in marine science during the early twentieth century. It looks in turn at questions of defining and agreeing on research objectives, how backchannel science diplomacy can become official government diplomacy, and finally, how careful science diplomacy brought Germany back to the international research arena so as to successfully put in place marine conservation measures during the 1920s. In doing this, it argues that the foundation of the International Council for the Exploration of the Seas in 1902 represented a revolutionary moment where supra-national scientific research, coordination, and conservation politics for the ocean first emerged; with International Council for the Exploration of the Sea becoming a key model for all subsequent marine science diplomacy. This essay is part of a special issue entitled Science Diplomacy, edited by Giulia Rispoli and Simone Turchetti.

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Nguyen, Binh Dinh. "Strategic Measures for the Marine Economic Development of Kien Giang Province". Science & Technology Development Journal - Economics - Law and Management 1, Q2 (30 de novembro de 2017): 17–28. http://dx.doi.org/10.32508/stdjelm.v1iq2.445.

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This paper analyzes the current situation of Kien Giang’s marine economic development in the process of international integration. Based on the analysis, the authors propose some strategic measures for implementing the goals of marine economic development and enriched income from harvesting the sea, which are: optimizing marine industry structure; strengthening the exploration of and forecast about ocean resources; promoting a comprehensive management of marine economy; and increasing the investment in marine infrastructure and marine environmental protection. From the analyzes and explanations about the Kien Giang’s marine economic development, the author has proposed suitable solutions to contribute to the fast and sustainable development of the marine economy in Kien Giang.

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Su, Tianyun, Baohua Liu, Shikui Zhai, Ruicai Liang e Yanpeng Zheng. "Marine Engineering Geological Exploration Information System (MEGEIS): A GIS-based application to marine resources exploitation". Journal of Ocean University of China 6, n.º 3 (julho de 2007): 226–30. http://dx.doi.org/10.1007/s11802-007-0226-z.

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