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Journal articles on the topic 'Deep-sea sediments'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Wei, Dingbang, Huade Cao, and Jianxin Xia. "A Pressure-Sinkage Model for Deep-Sea Sediments Based on Variable-Order Fractional Derivatives." Mathematical Problems in Engineering 2023 (February 20, 2023): 1–13. http://dx.doi.org/10.1155/2023/1080951.

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In order to better describe the pressure-sinkage process of deep-sea surface sediments, this article proposes a new four-element model. First, the pressure-sinkage process was divided into four components according to the change in the deep-sea sediment sinkage rate, and the time-dependent mechanical property of deep-sea sediments was described. Then, a new four-element pressure-sinkage model was established by introducing variable-order fractional derivatives into the modelling idea of classic element combination to describe the full pressure-sinkage regions of deep-sea sediments. Furthermore

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2

Mekik, Figen. "Deep-sea sediments." Eos, Transactions American Geophysical Union 93, no. 17 (2012): 173. http://dx.doi.org/10.1029/2012eo170005.

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Tang, Qiuhua, Jie Li, Deqiu Ding, et al. "Deep-Sea Seabed Sediment Classification Using Finely Processed Multibeam Backscatter Intensity Data in the Southwest Indian Ridge." Remote Sensing 14, no. 11 (2022): 2675. http://dx.doi.org/10.3390/rs14112675.

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In 2007, China discovered a hydrothermal anomaly in the Longqi hydrothermal area of the Southwest Indian Ridge. It was the first seabed hydrothermal area discovered in the ultraslow spreading ocean ridge in the world. Understanding the types of seabed sediments in this area is critical for studying the typical topography and geological characteristics of deep-sea seabed hydrothermal areas. The traditional classification of deep-seabed sediments adopts box sampling or gravity column sampling and identifies the types of seabed sediments through laboratory analysis. However, this classification m

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Richter, Kenneth, and Jennifer Ayers. "An Approach to Predicting Sediment Microbial Fuel Cell Performance in Shallow and Deep Water." Applied Sciences 8, no. 12 (2018): 2628. http://dx.doi.org/10.3390/app8122628.

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Here we present an approach to predicting sediment microbial fuel cell performance based on environmental conditions. Sediment total organic carbon and water temperature were found to be important determinants in predicting the power output from microbial fuel cells in shallow sediments (<100 m) in San Diego. We extrapolated data from the in situ San Diego experiments to predict MFC performance in shallow sediments in other locations, namely the Gulf of Mexico and the Yellow Sea. Finally, using laboratory data of MFC performance in deep water (~1000 m) sediment samples, we extend our predic

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Sun, Zhiwen, Zhihan Fan, Chaoqi Zhu, et al. "Study on the Relationship between Resistivity and the Physical Properties of Seafloor Sediments Based on the Deep Neural Learning Algorithm." Journal of Marine Science and Engineering 11, no. 5 (2023): 937. http://dx.doi.org/10.3390/jmse11050937.

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The occurrence of deep-sea geohazards is accompanied by dynamic changes in the physical properties of seafloor sediments. Therefore, studying the physical properties is helpful for monitoring and early warnings of deep-sea geohazards. Existing physical property inversion methods have problems regarding the poor inversion accuracy and limited application scope. To address these issues, we establish a deep learning model between the resistivity of seafloor sediment and its density, water content, and porosity. Compared with empirical formulas, the deep learning model has the advantages of a more

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Peng, Shaoyuan, Fang Dong, Lei Li, et al. "Bacterial Diversity in Deep-Sea Sediment of West Pacific Nodule Province." Water 16, no. 22 (2024): 3172. http://dx.doi.org/10.3390/w16223172.

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Dense polymetallic nodule fields are found in different areas of the Pacific and Indian Oceans. However, limited knowledge exists about microbial diversity, processes and functions in deep-sea polymetallic nodule sediments. This study investigated microbial diversity, composition and function in sediments from various locations and depths in a western Pacific polymetallic nodule province. Sediment cores were collected, DNA extracted, and the V3–V4 regions of the 16S rRNA gene were sequenced using Illumina MiSeq. The test results show that the abundance and diversity of microbial communities in

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Diesing, Markus. "Deep-sea sediments of the global ocean." Earth System Science Data 12, no. 4 (2020): 3367–81. http://dx.doi.org/10.5194/essd-12-3367-2020.

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Abstract. Although the deep-sea floor accounts for approximately 60 % of Earth's surface, there has been little progress in relation to deriving maps of seafloor sediment distribution based on transparent, repeatable, and automated methods such as machine learning. A new digital map of the spatial distribution of seafloor lithologies below 500 m water depth is presented to address this shortcoming. The lithology map is accompanied by estimates of the probability of the most probable class, which may be interpreted as a spatially explicit measure of confidence in the predictions, and probabilit

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8

Lee, Jae Il, Ho Il Yoon, Kyu-Cheul Yoo, et al. "Late Quaternary glacial–interglacial variations in sediment supply in the southern Drake Passage." Quaternary Research 78, no. 1 (2012): 119–29. http://dx.doi.org/10.1016/j.yqres.2012.03.010.

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AbstractGeochemical characteristics of marine sediment from the southern Drake Passage were analyzed to reconstruct variations in sediment provenance and transport paths during the late Quaternary. The 5.95 m gravity core used in this study records paleoenvironmental changes during the last approximately 600 ka. Down-core variations in trace element, rare earth element, and Nd and Sr isotopic compositions reveal that sediment provenance varied according to glacial cycles. During glacial periods, detrital sediments in the southern Drake Passage were mostly derived from the nearby South Shetland

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9

PANIN, Nicolae. "Contributions to the study of the sediment sink processes within the Danube – Black Sea system." Geo-Eco-Marina No 15/2009 (December 31, 2009): 29–35. https://doi.org/10.5281/zenodo.57308.

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Abstract. The paper analyses the sediment sink processes at the end of a large river sea system as the Danube – Black Sea is. It tries to evaluate the amount of sediments accumulated within the high stand depocentre, represented by the present-day Danube Delta, and the low stand one – the Danube deep sea fan complex. The deep-sea fan complex mobilised over 40,000 km3 of sediments with an accumulation rate that ranges between 88×106 t/a and 302×106 t/a (Wong et al., 1997; Winguth et al., 1997, 2000), while the amount of sediments accumulated in the present-day Danube Del

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Streltsova, E. A., N. A. Belyaev, V. Yu Fedulov, and E. M. Pushkareva. "Grain Size Distribution, Organic Carbon and Geochemical Markers in the Surface Layer of Bottom Sediments in the Northeastern Part of the Kara Sea." Okeanologiâ 64, no. 2 (2024): 354–63. http://dx.doi.org/10.31857/s0030157424020117.

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The upper layer of bottom sediments in the northeastern part of the Kara Sea is studied. It is shown that the composition of sediments is dominated by silt, the proportion of sand increases towards the shore. The content of organic carbon (average value — 1.1% wt.) is close to the average content in sediments of the Kara Sea, increasing at deep-sea stations. The revealed linear relationship between the content of organic carbon and the surface area of sediment shows that sorption on the particles surface is the predominant accumulation form of organic matter (OM) in sediments. The average n-al

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Tully, Benjamin J., and John F. Heidelberg. "Potential Mechanisms for Microbial Energy Acquisition in Oxic Deep-Sea Sediments." Applied and Environmental Microbiology 82, no. 14 (2016): 4232–43. http://dx.doi.org/10.1128/aem.01023-16.

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ABSTRACTThe South Pacific Gyre (SPG) possesses the lowest rates of sedimentation, surface chlorophyll concentration, and primary productivity in the global oceans. As a direct result, deep-sea sediments are thin and contain small amounts of labile organic carbon. It was recently shown that the entire SPG sediment column is oxygenated and may be representative of up to a third of the global marine environment. To understand the microbial processes that contribute to the removal of the labile organic matter at the water-sediment interface, a sediment sample was collected and subjected to metagen

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12

Guan, Yang, Jia Yonggang, Quan Yongzheng, et al. "First In-situ Full Deep Sea Sediment Strength Testing Device: MEGE." Journal of Marine Environmental Engineering 11, no. 1 (2023): 21–39. http://dx.doi.org/10.32908/jmee.v11.2023041001.

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The development of ocean resources and ocean engineering construction has gradually advanced into the deep sea. However, precise measurement of the shear strength of seabed sediments remains a challenge. To obtain the strength of seabed sediments, an in-situ device for testing the mechanical properties of seabed sediments has been developed. This device can obtain the strength of the shallow sediment layers at a site by measuring the penetration resistance and pore water pressure and by collecting sediment samples. The device mainly includes a device carrying and penetration system, a control

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13

Khitrenko, A. V., A. M. Minkhatova, V. A. Orlov, D. A. Kotunov, and S. A. Khalilov. "INFLUENCE OF THE MAIN FACTORS ON THE CONDITIONS OF FORMATION OF THE ACHIMOV FORMATION." Энергия: экономика, техника, экология, no. 2 (2020): 18–24. http://dx.doi.org/10.7868/s2587739920020020.

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Western Siberia is a unique geological area for testing different approaches of sequential stratigraphy and their impact on deep-sea sediment architecture. There are many different various techniques allow us to reduce geological uncertainty and predict distribution and architecture of deep-water sediments. The architecture of deepwater sediments is influenced by the basin topography and volume of sediment supply. In this paper the main factors and their influence on the deep-water sediments accumulation will be considered. This approach was used for prediction distribution and quality of deep

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Thureborn, Petter, Andrea Franzetti, Daniel Lundin, and Sara Sjöling. "Reconstructing ecosystem functions of the active microbial community of the Baltic Sea oxygen depleted sediments." PeerJ 4 (January 19, 2016): e1593. http://dx.doi.org/10.7717/peerj.1593.

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Baltic Sea deep water and sediments hold one of the largest anthropogenically induced hypoxic areas in the world. High nutrient input and low water exchange result in eutrophication and oxygen depletion below the halocline. As a consequence at Landsort Deep, the deepest point of the Baltic Sea, anoxia in the sediments has been a persistent condition over the past decades. Given that microbial communities are drivers of essential ecosystem functions we investigated the microbial community metabolisms and functions of oxygen depleted Landsort Deep sediments by metatranscriptomics. Results show s

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Lejzerowicz, Franck, Philippe Esling, Wojciech Majewski, et al. "Ancient DNA complements microfossil record in deep-sea subsurface sediments." Biology Letters 9, no. 4 (2013): 20130283. http://dx.doi.org/10.1098/rsbl.2013.0283.

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Deep-sea subsurface sediments are the most important archives of marine biodiversity. Until now, these archives were studied mainly using the microfossil record, disregarding large amounts of DNA accumulated on the deep-sea floor. Accessing ancient DNA (aDNA) molecules preserved down-core would offer unique insights into the history of marine biodiversity, including both fossilized and non-fossilized taxa. Here, we recover aDNA of eukaryotic origin across four cores collected at abyssal depths in the South Atlantic, in up to 32.5 thousand-year-old sediment layers. Our study focuses on Foramini

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16

Aulenta, Federico, Enza Palma, Ugo Marzocchi, Carolina Cruz Viggi, Simona Rossetti, and Alberto Scoma. "Enhanced Hydrocarbons Biodegradation at Deep-Sea Hydrostatic Pressure with Microbial Electrochemical Snorkels." Catalysts 11, no. 2 (2021): 263. http://dx.doi.org/10.3390/catal11020263.

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In anaerobic sediments, microbial degradation of petroleum hydrocarbons is limited by the rapid depletion of electron acceptors (e.g., ferric oxide, sulfate) and accumulation of toxic metabolites (e.g., sulfide, following sulfate reduction). Deep-sea sediments are increasingly impacted by oil contamination, and the elevated hydrostatic pressure (HP) they are subjected to represents an additional limitation for microbial metabolism. While the use of electrodes to support electrobioremediation in oil-contaminated sediments has been described, there is no evidence on their applicability for deep-

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17

Kopytina, N. I., S. B. Krasheninnikova, S. V. Kapranov, E. A. Bocharova, and N. Yu Rodionova. "The Microfungal Communities in Deep-Sea Sediments from the Equatorial Atlantic." Микология и фитопатология 58, no. 6 (2024): 480–90. https://doi.org/10.31857/s0026364824060062.

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Microfungi of deep-sea sediments, and especially those several meters below the water–sediment interface, are poorly studied. In this work, for the first time, microfungal communities isolated by cultivation from deep-sea sediments of the eastern part of the Equatorial Atlantic (the Romanche and Chain Fracture Zones) were investigated. Fungi were isolated from sediments sampled at each of 12 stations from horizons 1.0–4.7 m below the sediment–water interface. To study microscopic fungi, one sediment horizon was isolated from each core. The fungal abundances were within the range of 0.0–3300.0

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18

Olamigoke, Olugbenga. "The Presence of Microplastics in Ocean Waters and Deep Marine Sediments: Implications for the Gulf of Guinea." Current Trends in Engineering Science (CTES) 3, no. 1 (2023): 1–4. http://dx.doi.org/10.54026/ctes/1022.

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Microplastics are ubiquitous in marine environments as they are found in surface waters, across the water column and in deep-sea sediments. Microplastics could adversely affect marine biota on a cellular level by stretching lipid membranes thereby shortening the lifespan of the organism. The ingestion of microplastics has been reported among larger animals with the risk of neurotoxicity and genotoxicity. In this paper, the likely mechanisms determining distribution and abundance of microplastics in ocean waters and deep-sea sediments have been reviewed. While deep-sea sediment cores reveal hig

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19

Zhang, Yan, Gaowen He, Fan Xiao, Yong Yang, Fenlian Wang, and Yonggang Liu. "Geochemical Characteristics of Deep-Sea Sediments in Different Pacific Ocean Regions: Insights from Fractal Modeling." Fractal and Fractional 8, no. 1 (2024): 45. http://dx.doi.org/10.3390/fractalfract8010045.

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Exploration of mineral resources in the deep sea has become an international trend. However, deep-sea mineral exploration faces challenges such as complex offshore drilling and the weak and mixed signals of ore deposits. Therefore, studying methods for identifying weak and mixed anomalies and extracting composite information in the deep sea is crucial for innovative prediction and evaluation of deep-sea mineral resources. In this study, the Central Pacific Ocean, Northwestern Pacific Ocean, and Eastern Pacific Ocean were selected as research areas. Drawing upon the fractal self-similarity exhi

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Corinaldesi, Cinzia, Antonio DellAnno, Mirko Magagnini, and Roberto Danovaro. "Viral decay and viral production rates in continental-shelf and deep-sea sediments of the Mediterranean Sea." FEMS microbiology ecology 72, no. 208 (2010): 218. https://doi.org/10.1111/j.1574-6941.2010.00840.x.

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Here, for the first time, we have carried out synoptic measurements of viral production and decay rates in continental-shelf and deep-sea sediments of the Mediterranean Sea, to explore the viral balance. The net viral production and decay rates (1.1-61.2 and 0.6-13.5×107 viruses g-1 h-1, respectively) were significantly correlated, and were related also to prokaryotic heterotrophic production. The addition of enzymes increased decay rates in the surface sediments, but not in the subsurface sediments. The viral production and decay rates both decreased significantly in the deeper sediment layer

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21

Canfield, D. E. "Sulfate reduction in deep-sea sediments." American Journal of Science 291, no. 2 (1991): 177–88. http://dx.doi.org/10.2475/ajs.291.2.177.

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22

Marcantonio, Franco, Sean Higgins, Robert F. Anderson, Martin Stute, Peter Schlosser, and E. Troy Rasbury. "Terrigenous helium in deep-sea sediments." Geochimica et Cosmochimica Acta 62, no. 9 (1998): 1535–43. http://dx.doi.org/10.1016/s0016-7037(98)00091-x.

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23

Bolliger, R., K. W. Hanselmann, and R. Bachofen. "Microbial potential in deep-sea sediments." Experientia 47, no. 6 (1991): 517–23. http://dx.doi.org/10.1007/bf01949870.

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24

Van Cauwenberghe, Lisbeth, Ann Vanreusel, Jan Mees, and Colin R. Janssen. "Microplastic pollution in deep-sea sediments." Environmental Pollution 182 (November 2013): 495–99. http://dx.doi.org/10.1016/j.envpol.2013.08.013.

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25

Chester, R. "Ocean chemistry and deep-sea sediments." Marine Geology 110, no. 1-2 (1993): 177–78. http://dx.doi.org/10.1016/0025-3227(93)90113-a.

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MEADOWS, A., and P. S. MEADOWS. "Bioturbation in deep sea Pacific sediments." Journal of the Geological Society 151, no. 2 (1994): 361–75. http://dx.doi.org/10.1144/gsjgs.151.2.0361.

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Masiello, C. A. "Black Carbon in Deep-Sea Sediments." Science 280, no. 5371 (1998): 1911–13. http://dx.doi.org/10.1126/science.280.5371.1911.

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Barsanti, M., I. Delbono, A. Schirone, et al. "Sediment reworking rates in deep sediments of the Mediterranean Sea." Science of The Total Environment 409, no. 15 (2011): 2959–70. http://dx.doi.org/10.1016/j.scitotenv.2011.04.025.

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Pedrosa-Pàmies, R., C. Parinos, A. Sanchez-Vidal, et al. "Composition and sources of sedimentary organic matter in the deep eastern Mediterranean Sea." Biogeosciences 12, no. 24 (2015): 7379–402. http://dx.doi.org/10.5194/bg-12-7379-2015.

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Abstract. Surface sediments collected from deep slopes and basins (1018–4087 m depth) of the oligotrophic eastern Mediterranean Sea have been analysed for bulk elemental and isotopic composition of organic carbon, total nitrogen and selected lipid biomarkers, jointly with grain size distribution and other geochemical proxies. The distribution and sources of sedimentary organic matter (OM) have been subsequently assessed and general environmental variables, such as water column depth and physical circulation patterns, have been examined as causative factors of deep-sea sediment characteristics.

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Bube, K., T. Klenke, and U. Feudel. "An algorithm for detecting layer boundaries in sediments." Nonlinear Processes in Geophysics 13, no. 6 (2006): 661–69. http://dx.doi.org/10.5194/npg-13-661-2006.

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Abstract. In this paper we present an algorithm based on wavelet multiscale decomposition, designed to detect lines of maximal gradients in horizontal direction within two-dimensional data sets. The algorithm is capable of identifying layer boundaries within sediment profiles, as demonstrated for artificial as well as two field data sets. Layers are detected with a good resolution within (i) digital images of a deep sea sediment core (IODP-expedition 301, core 15H) and (ii) chemical concentration patterns of recent tidal sediments (North Sea).

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Volz, Jessica B., Laura Haffert, Matthias Haeckel, Andrea Koschinsky, and Sabine Kasten. "Impact of small-scale disturbances on geochemical conditions, biogeochemical processes and element fluxes in surface sediments of the eastern Clarion–Clipperton Zone, Pacific Ocean." Biogeosciences 17, no. 4 (2020): 1113–31. http://dx.doi.org/10.5194/bg-17-1113-2020.

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Abstract. The thriving interest in harvesting deep-sea mineral resources, such as polymetallic nodules, calls for environmental impact studies and, ultimately, for regulations for environmental protection. Industrial-scale deep-sea mining of polymetallic nodules most likely has severe consequences for the natural environment. However, the effects of mining activities on deep-sea ecosystems, sediment geochemistry and element fluxes are still poorly understood. Predicting the environmental impact is challenging due to the scarcity of environmental baseline studies as well as the lack of mining t

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Lenz, C., T. Jilbert, D. J. Conley, M. Wolthers, and C. P. Slomp. "Are recent changes in sediment manganese sequestration in the euxinic basins of the Baltic Sea linked to the expansion of hypoxia?" Biogeosciences Discussions 11, no. 6 (2014): 9889–918. http://dx.doi.org/10.5194/bgd-11-9889-2014.

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Abstract. Expanding hypoxia in the Baltic Sea over the past century has led to anoxic and sulfidic (euxinic) deep basins that are only periodically ventilated by inflows of oxygenated waters from the North Sea. In this study, we investigate the consequences of the expanding hypoxia for manganese (Mn) burial in the Baltic Sea using a combination of pore water and sediment analyses of well-dated sediment cores from 8 locations. Diffusive fluxes of dissolved Mn from sediments to overlying waters at oxic and hypoxic sites are in line with an active release of Mn from these areas. However, this flu

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Cronin, Thomas M., and Gary S. Dwyer. "Deep Sea Ostracodes and Climate Change." Paleontological Society Papers 9 (November 2003): 247–64. http://dx.doi.org/10.1017/s1089332600002230.

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Ostracodes are bivalved Crustacea whose fossil shells constitute the most abundant and diverse metazoan group preserved in sediment cores from deep and intermediate ocean water depths. The ecology, zoogeography, and shell chemistry of many ostracode taxa makes them useful for paleoceanographic research on topics ranging from deep ocean circulation, bottom-water temperature, ecological response to global climate change and many others. However, the application of ostracodes to the study of climate change has been hampered by a number of factors, including the misconception that they are rare or

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Dell'Anno, A., A. Pusceddu, C. Corinaldesi, et al. "Trophic state of sediments from two deep continental margins off Iberia: a biomimetic approach." Biogeosciences Discussions 9, no. 12 (2012): 17619–50. http://dx.doi.org/10.5194/bgd-9-17619-2012.

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Abstract. The trophic state of benthic deep-sea ecosystems can greatly influence key ecological processes (e.g. biomass production and nutrient cycling). Thus, assessing the trophic state of the sediment at different spatial and temporal scales is crucial for a better understanding of deep-sea ecosystem functioning. Here, using a biomimetic approach based on enzymatic digestion of protein and carbohydrate pools, we assess the bioavailability of organic detritus and its nutritional value in the uppermost layer of deep-sea sediments from open slopes and canyons of the Catalan (NW Mediterranean)

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Pedrosa-Pàmies, R., C. Parinos, A. Sanchez-Vidal, et al. "Composition and sources of sedimentary organic matter in the deep Eastern Mediterranean Sea." Biogeosciences Discussions 12, no. 13 (2015): 9935–89. http://dx.doi.org/10.5194/bgd-12-9935-2015.

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Abstract. Surface sediments collected from deep slopes and basins (1018–4087 m depth) of the oligotrophic Eastern Mediterranean Sea have been analysed for bulk elemental and isotopic composition of organic carbon, total nitrogen and selected lipid biomarkers, jointly with grain size distribution and other geochemical proxies. The distribution and sources of sedimentary organic matter (OM) have been subsequently assessed and general environmental variables, such as water depth and currents, have been examined as causative factors of deep-sea sediment characteristics. Lithogenic and biogenic car

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Bird, G. J., and D. M. Holdich. "Recolonisation of Artificial Sediments in the Deep Bay of Biscay By Tanaidaceans (Crustacea: Peracarida), With a Description of a New Species of Pseudotanais." Journal of the Marine Biological Association of the United Kingdom 69, no. 2 (1989): 307–17. http://dx.doi.org/10.1017/s0025315400029428.

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One of the more recent aims of deep-sea biological investigations has been to assess the rates and processes involved in the recolonisation of deep-sea sediments by the in situ fauna (Grassle, 1977; Desbruyères etal., 1980, 1985; Levin & Smith, 1984). The spur to such initiatives has been the prospect of deep-sea mineral exploitation and the dumping of radioactive and other chemical wastes (Desbruyères etal., 1 985), in addition to the testing of hypotheses about deep-sea community regulation (Levin & Smith, 1984; Smith, 1986). These experiments have shown that perturbated or defaunate

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Zhong, Kaiming, Ming Chen, Chao Xie, et al. "Design and Application of a Deep-Sea Engineering Geology In Situ Test System." Minerals 13, no. 2 (2023): 184. http://dx.doi.org/10.3390/min13020184.

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Seabed soil layer composed of soft sediments, which has a high water content, low bulk density and low shear strength, has great influence on deep-sea engineering devices. Therefore, accurate measurement of the mechanical properties of seabed sediments is a prerequisite for the construction and safe operation of deep-sea projects. In this study, a deep-sea engineering geology in situ test system was developed to measure cone resistance, sleeve friction, pore pressure and shear resistance in seafloor sediments. The system was tested on land, and the feasibility of the system was verified. We co

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Wang, Fenlian, Gaowen He, Xiguang Deng, Yong Yang, and Jiangbo Ren. "Fish Teeth Sr Isotope Stratigraphy and Nd Isotope Variations: New Insights on REY Enrichments in Deep-Sea Sediments in the Pacific." Journal of Marine Science and Engineering 9, no. 12 (2021): 1379. http://dx.doi.org/10.3390/jmse9121379.

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Rare earth elements and yttrium (REY) are widely recognized as strategic materials for advanced technological applications. Deep-sea sediments from the eastern South Pacific and central North Pacific were first reported as potential resources containing significant amounts of REY that are comparable to, or greater than, those of land-based deposits. Despite nearly a decade of research, quantitative abundances and spatial distributions of these deposits remain insufficient. Age controls are generally absent due to the lack of biostratigraphic constraints. Thus, the factors controlling the forma

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Poremba, Knut. "Hydrolytic enzymatic activity in deep-sea sediments." FEMS Microbiology Ecology 16, no. 3 (1995): 213–22. http://dx.doi.org/10.1111/j.1574-6941.1995.tb00285.x.

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McEvoy, James, and James R. Maxwell. "A-norsteroidal ketones in deep sea sediments." Organic Geochemistry 9, no. 2 (1986): 101–4. http://dx.doi.org/10.1016/0146-6380(86)90090-2.

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Wang, Lei, T. L. Ku, S. Luo, J. R. Southon, and M. Kusakabe. "26Al-10Be systematics in deep-sea sediments." Geochimica et Cosmochimica Acta 60, no. 1 (1996): 109–19. http://dx.doi.org/10.1016/0016-7037(95)00379-7.

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Damare, Samir, and Chandralata Raghukumar. "Fungi and Macroaggregation in Deep-Sea Sediments." Microbial Ecology 56, no. 1 (2007): 168–77. http://dx.doi.org/10.1007/s00248-007-9334-y.

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Kennedy, H. A., and H. Elderfield. "Iodine diagenesis in pelagic deep-sea sediments." Geochimica et Cosmochimica Acta 51, no. 9 (1987): 2489–504. http://dx.doi.org/10.1016/0016-7037(87)90300-0.

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Smith, Craig R., Robin H. Pope, David J. DeMaster, and Lorenz Magaard. "Age-dependent mixing of deep-sea sediments." Geochimica et Cosmochimica Acta 57, no. 7 (1993): 1473–88. http://dx.doi.org/10.1016/0016-7037(93)90007-j.

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Riemann, F. "The deep-sea nematode Thalassomonhystera bathislandica sp. nov. and microhabitats of nematodes in flocculent surface sediments." Journal of the Marine Biological Association of the United Kingdom 75, no. 3 (1995): 715–24. http://dx.doi.org/10.1017/s0025315400039126.

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Thalassomonhystera bathislandica sp. nov. (Nematoda: Monhysteridae) was found in abundance in a few gelatinous phytodetritus aggregates collected from the surface of bottom sediments in the north-eastern Atlantic at depths of about 4000 m. The new species resembles T. islandica (De Coninck, 1943), an inhabitant of saltmarshes. Viscous detrital aggregates, including sediment agglutinations made by the nematodes themselves, are perceived as the preferred habitats of nematode species in fluffy surficial muds. It is suggested that physical constraints prevent nematodes from a fast invasion into fr

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Luna, Gian Marco, Karen Stumm, Antonio Pusceddu, and Roberto Danovaro. "Archaeal diversity in deep-sea sediments estimated by means of different Terminal-Restriction Fragment Length Polymorphisms (T-RFLP) protocols." Current microbiology, no. 59 (June 20, 2009): 356–61. https://doi.org/10.1007/s00284-009-9445-4.

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Despite the increasing recognition of the quantitative importance of Archaea in all marine systems, the protocols for a rapid estimate of Archaeal diversity patterns in deep-sea sediments have been only poorly tested yet. We collected sediment samples from 11 deep-sea sites covering a wide latitudinal range (from 79°N to 36°N, at depths comprised from 469 to 5500 m) and compared the performance of two different primer sets (ARCH21f/ARCH958r and ARCH109f/ARCH 915r) and three restriction enzymes (AluI, Rsa I and HaeIII) for the fingerprinting analysis (T-RFLP) of Archaeal diversity. In silico an

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Sevastyanov, V. S., V. Yu Fedulova, O. V. Kuznetsova, et al. "Peculiarities of CH4 and CO2 Distribution in Sediments of the Arctic Seas." Геохимия 68, no. 2 (2023): 163–72. http://dx.doi.org/10.31857/s0016752523020085.

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The distribution of the concentrations of CH4 and CO2 and other gases in the sediments of the Kara, Laptev and East Siberian seas was studied. A correlation was found between CH4 and CO2 in most sediment cores. The correlation coefficient R for the sediments of the Kara Sea ranges from 0.58 to 0.97 and does not depend on the gas distribution with depth. Methanogenesis in marine sediments is presumably associated with sulfate reduction, and hydrogenotrophic methanogenesis leads to an increase in CH4 concentration against the background of high CO2 concentration. The high concentration of dimeth

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Dang, Hongyue, Xiwu Luan, Jingyi Zhao, and Jing Li. "Diverse and Novel nifH and nifH-Like Gene Sequences in the Deep-Sea Methane Seep Sediments of the Okhotsk Sea." Applied and Environmental Microbiology 75, no. 7 (2009): 2238–45. http://dx.doi.org/10.1128/aem.02556-08.

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ABSTRACT Diverse nifH and nifH-like gene sequences were obtained from the deep-sea surface sediments of the methane hydrate-bearing Okhotsk Sea. Some sequences formed novel families of the NifH or NifH-like proteins, of currently unresolved bacterial or archaeal origin. Comparison with other marine environments indicates environmental specificity of some of the sequences, either unique to the methane seep sediments of the Okhotsk Sea or to the general deep-sea methane seep sedimentary environments.

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Hussain, Arif, and Khalid Al-Ramadan. "Organic Matter Burial in Deep-Sea Fans: A Depositional Process-Based Perspective." Journal of Marine Science and Engineering 10, no. 5 (2022): 682. http://dx.doi.org/10.3390/jmse10050682.

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Organic matter burial in the deep-sea fan sediments is an important component of the long-term carbon cycle. Although there is increasing recognition of the importance of organic matter in deep-sea sediments, a major focus has been on mudstones, commonly interpreted as the background sediments, deposited by pelagic or hemipelagic vertical suspension fallout in low-energy fan environments. Emerging evidence suggests that relatively coarse-grained sediment gravity flow deposits (e.g., turbidites and hybrid event beds) can also store a significant quantity of organic carbon, implying that a wide

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Gooday, Andrew J., Genoveva F. Esteban, and Ken J. Clarke. "Organic and siliceous protistan scales in north-east Atlantic abyssal sediments." Journal of the Marine Biological Association of the United Kingdom 86, no. 4 (2006): 679–88. http://dx.doi.org/10.1017/s0025315406013567.

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We report the occurrence of a high diversity of minute (∼1 μm diameter) organic and siliceous protistan scales in small samples (total volume ∼35 μl) of superficial sediment from the Porcupine Abyssal Plain (PAP), north-east Atlantic (4850 m water depth). Many exhibit characters by which they can be identified to species. The organic scales belong to the haptophyte genera Chrysochromulina (8–9 species), Chrysocampanula and Dolichomastix (1 species each). The siliceous scales belong to the chrysophytes Paraphysomonas vestita and Meringosphaera sp. and to the heterotrophic flagellate genus Thaum

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