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Journal articles on the topic 'Deltaic zones'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Shatyrov, A. K. "Distribution characteristics of abnormal formation pressures in the aquatic area of the Sakhalin shelf." Proceedings of higher educational establishments. Geology and Exploration, no. 5 (February 5, 2023): 41–53. http://dx.doi.org/10.32454/0016-7762-2022-64-5-41-53.

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Introduction. The conditions determining the distribution of abnormal formation pressures in the aquatic area of the Sakhalin shelf are analysed using boring data.Aim. To analyse the genesis of abnormally high pore pressure (AHPP) or abnormally high formation pressure (AHFP) zones and identify the pore pressure heterogeneities of the Sakhalin shelf.Materials and methods. Data systematization and statistical generalization, partial borrowing of materials from field data, reference literature and published materials. Modelling of the AHPP (AHFP) formation process was performed using the PetroMod

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Ogneva, Olga, Gesine Mollenhauer, Bennet Juhls, et al. "Particulate organic matter in the Lena River and its delta: from the permafrost catchment to the Arctic Ocean." Biogeosciences 20, no. 7 (2023): 1423–41. http://dx.doi.org/10.5194/bg-20-1423-2023.

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Abstract. Rapid Arctic warming accelerates permafrost thaw, causing an additional release of terrestrial organic matter (OM) into rivers and, ultimately, after transport via deltas and estuaries, to the Arctic Ocean nearshore. The majority of our understanding of nearshore OM dynamics and fate has been developed from freshwater rivers despite the likely impact of highly dynamic estuarine and deltaic environments on the transformation, storage, and age of OM delivered to coastal waters. Here, we studied particulate organic carbon (POC) dynamics in the Lena River delta and compared them with POC

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Aweto, K. E., O. Ohwoghere-Asuma, and T. Omeru. "A comparative aquifer vulnerability study of the Quaternary Sombreiro – Warri Deltaic plain deposits, Western Niger Delta, Nigeria." Ife Journal of Science 25, no. 1 (2023): 069–85. http://dx.doi.org/10.4314/ijs.v25i1.8.

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This paper investigates the effect of two parameters, resistivity and hydraulic conductivity of the vadose zone, and their reliability in assessing aquifer vulnerability. Hence, the vulnerability of the aquifers within the Quaternary – Sombreiro Deltaic deposits to contamination was assessed using two models: longitudinal conductance and hydraulic resistance. The results from the simulation of the models show four vulnerability zones indicated by the longitudinal conductance model, while the hydraulic resistance model revealed five zones. Two-way analysis of variance (ANOVA) reveals that thick

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4

Thornburg, Jesse D., Kenneth G. Miller, and James V. Browning. "Sequence stratigraphic framework of the mid-Cretaceous nonmarine Potomac Formation, New Jersey and Delaware." Journal of Sedimentary Research 90, no. 7 (2020): 713–28. http://dx.doi.org/10.2110/jsr.2020.53.

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ABSTRACT We developed a sequence stratigraphic framework for the (Barremian to lower Cenomanian) fluvial–deltaic (primarily delta plain) Potomac Formation in the Medford, New Jersey, Fort Mott, New Jersey, and Summit Marina, Delaware coreholes. Previous studies have correlated distinctive lithologic units with attendant pollen zones and identified tentative sequence boundaries between lithologic units I (Barremian to lower Aptian, pollen Zone I), II (Aptian to lowermost Cenomanian, pollen Zone II), and III (lower Cenomanian, pollen Zone III) at all three sites. Here, we further subdivide these

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Soe-Htun, U., Soe Pa Pa Kyaw, Mya Kyawt Wai, Jar San, SeinMoh Moh Khaing, and Chaw Thiri Pyae Phyo Aye. "A review on the seaweed resources of Myanmar." Journal of Aquaculture and Marine Biology 10, no. 4 (2021): 152–66. http://dx.doi.org/10.15406/jamb.2021.10.00317.

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A total of 261species of marine benthic algae under 121genera,comprising 72 taxa belonging to 26 genera of Chlorophyta, 45 taxa belonging to 18 genera of Phaeophyta and 144 taxa belonging to 77 genera of Rhodophyta growing along the Tanintharyi Coastal Zone, Deltaic Coastal Zone and Rakhine Coastal Zone, were recorded. In general, diversity ratios of seaweeds occur in 3 Coastal Zones is 3:1:4 between the Tanintharyi Coastal Zone (146 taxa), Deltaic Coastal Zone (53 taxa) and Rakhine Coastal Zone (224 taxa).Among these, 89 species of marine benthic algae, including 25 taxa of green, 9 taxa of b

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Paterson, Niall William, and Gunn Mangerud. "A revised palynozonation for the Middle–Upper Triassic (Anisian–Rhaetian) Series of the Norwegian Arctic." Geological Magazine 157, no. 10 (2019): 1568–92. http://dx.doi.org/10.1017/s0016756819000906.

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AbstractThe Barents Sea region of Arctic Norway preserves a thick succession of marine and deltaic Triassic strata that yield an abundant and diverse association of terrestrial and marine palynomorphs. Despite being the principal means for dating and correlation across this vast region, the Upper Triassic palynozonal resolution has remained relatively low. This is problematic due to the thickness of the Upper Triassic Series and since this corresponds to the longest of the three Triassic epochs. This paper presents a refined Middle–Upper Triassic palynozonation for the region, based on a detai

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7

Saha, Tumpa, and Subrota Kumar Saha. "Systematics of Modern Benthic Foraminiferal Assemblages From the Deltaic Mangrove Ecosystem of Sundarbans." Journal of the Asiatic Society of Bangladesh, Science 47, no. 2 (2021): 121–36. http://dx.doi.org/10.3329/jasbs.v47i2.57276.

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The contemporary intertidal foraminifera and estuarine environment information were collected from the four sites adjoining the deltaic mangrove environment in the Sundarbans. The marsh zones of the south-western coastal region of Bangladesh were examined for modern benthic foraminifera and to expound on the relationship of the foraminiferal assemblages with the environment. Due to high inaccessibility and remoteness, the taxonomic study of foraminifera and its depositional environment remains largely overlooked in the Sundarbans of Bangladesh. This study includes a detailed survey of depositi

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Haque, Nusaiba Afsara, Anika Azad, Md Khairul Amin, and G. M. Jahid Hasan. "Bankline Assessment of Shibsa-Passur River by Satellite Imagery and Hydrodynamic Modeling using Delft3D." MIST INTERNATIONAL JOURNAL OF SCIENCE AND TECHNOLOGY 12 (December 26, 2024): 01–12. https://doi.org/10.47981/j.mijst.12(02)2024.468(01-12).

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The Sundarbans, a prolific mangrove wetland ecosystem part of the world's largest delta formed by the Ganges, Brahmaputra, and Meghna rivers, contribute immensely to coastal stability and protection. In deltaic mangroves such as the Sundarbans, recurrent erosion and accretion caused by the transportation of unconsolidated sediments by rivers, interact with flow velocity and bed shear to generate continuous morphological dynamics. This study analyzed the bankline migration patterns of the Shibsa and Passur rivers within the Bangladesh portion of the Sundarbans using satellite images and assesse

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9

Alam, Zarjij, and Dr Nirmalya Das. "Migration, urbanization, and work participation along Indo-Bangladesh border districts of West Bengal." Journal of Research in Humanities and Social Science 13, no. 2 (2025): 43–51. https://doi.org/10.35629/9467-13024351.

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The spatial pattern of Indo-Bangladesh border districts of West Bengal is differed in respect to physioenvironmental characteristics. The region may be divided into different zones on the basis of physiography. The study area covers ten border districts of West Bengal which consists mainly three physio-environmental zones i.e., i. Northern sub-Himalayan region, ii. Lower Gangetic plain region and iii. Deltaic Sundarban region. Migration, population change and economic activities are a dynamic process which largely governed by the physio-environmental condition of an area. The international mig

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Dey, Nayan, and Payel Das. "Riverbank Erosion Along the Vidyadhari River, Gosaba, South 24 Parganas, West Bengal, India with Suitable Embankment Proposal: A Geospatial Investigation." Indonesian Journal of Innovation and Applied Sciences (IJIAS) 3, no. 2 (2023): 159–72. http://dx.doi.org/10.47540/ijias.v3i2.823.

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India is a country of rivers. Sundarban is the world’s largest deltaic region, which is also part of the Ganga region. Highly populated this region is frequently faced intensive floods. The objective of this paper is to give a notion about the potential embankment zone along the Vidyadhari River. Changes in riverbanks since 1972 have been highlighted through GIS and Remote Sensing Applications. Through this paper, erosional and depositional zones along the Vidyadhari River are also spotted out. The potential embankment zone is measured by the vulnerability analysis based on river bank shifting

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Eberth, David A., David C. Evans, Donald B. Brinkman, François Therrien, Darren H. Tanke, and Loris S. Russell. "Dinosaur biostratigraphy of the Edmonton Group (Upper Cretaceous), Alberta, Canada: evidence for climate influence." Canadian Journal of Earth Sciences 50, no. 7 (2013): 701–26. http://dx.doi.org/10.1139/cjes-2012-0185.

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A high-resolution biostratigraphic analysis of 287 dinosaurian macrofossils and 138 bonebeds in the Edmonton Group (Upper Cretaceous) of southern Alberta provides evidence for at least three dinosaurian assemblage zones in the Horseshoe Canyon Formation (HCFm). From bottom to top the zones comprise unique assemblages of ornithischians and are named as follows: (1) Edmontosaurus regalis – Pachyrhinosaurus canadensis (lower zone); (2) Hypacrosaurus altispinus – Saurolophus osborni (middle zone); and (3) Eotriceratops xerinsularis (upper zone). Whereas the lower and middle zones are well defined

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López, M., and M. Aldana. "Facies recognition using wavelet based fractal analysis and waveform classifier at the Oritupano-A Field, Venezuela." Nonlinear Processes in Geophysics 14, no. 4 (2007): 325–35. http://dx.doi.org/10.5194/npg-14-325-2007.

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Abstract. We have used a Wavelet Based Fractal Analysis (WBFA) and a Waveform Classifier (WC) to recognize lithofacies at the Oritupano A field (Oritupano-Leona Block, Venezuela). The WBFA was applied first to Sonic, Density, Gamma Ray and Porosity well logs in the area. The logs that give the best response to the WBFA are the Gamma Ray and NPHI (porosity) logs. In the case of the logs, the lithological content could be associated to the fractal parameters: slope, intercept and fractal dimension. The map obtained using the fractal dimension shows tendencies that generally agree with the deposi

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13

Villa, Mercedes, Isabel Montoliu, Mercedes Gracenea, and Olga González-Moreno. "Análisis parasitológico de gasterópodos acuáticos del delta del Llobregat (Barcelona). Estadios larvarios de trematodos digénidos." Iberus 15(1) (June 30, 1997): 113–23. https://doi.org/10.5281/zenodo.4645691.

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Aquatic gastropods from the Llobregat delta were studied in order to detect infection prevalence by larval digenetic trematodes in the period 1990-1995. Specimens analysed (6.194) belonged to 4 species, 2 prosobranchs (Hydrobiidae) and 2 pulmonates (Ellobiidae, Physidae), the hydrobiid <em>M. confusa </em>(Frauenfeld, 1863) being the only infected. Larvae of 5 trematode species were detected following two life cycle modalities: a) cercarial emergence (xifidiocercariae Lecithodendriidae Odhner, 1910 and Microphallidae Travassos, 1920, unarmed cercariae Notocotylidae Lühe, 1957); b)without

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14

Ekom, J. C., Y. B. Alkali, A. I. Goro, and C. I. Uneuhvo. "PALYNOLOGICAL, PALEOENVIRONMENTAL AND PALEOCLIMATE ANALYSES OF EMI-5-WELL, OFFSHORE NIGER DELTA, NIGERIA." FUDMA JOURNAL OF SCIENCES 8, no. 3 (2024): 18–29. http://dx.doi.org/10.33003/fjs-2024-0803-2471.

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Palynological, Paleoenvironmental and Paleoclimatic investigations of Emi-5 well Offshore, Niger Delta, Nigeria was conducted to established palynozones, determine age, reconstruct paleoenvironmental conditions and paleoclimatic conditions to permit stratigraphic correlation, provide insights into the depositional settings and changes overtime within the basin. Fifty one (51) shaly ditch cutting samples were subjected to standard palynological method involving sample maceration with 10 % HCl and 40 % HF acids to remove carbonates and siliceous components, neutralization with distilled water an

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15

Myrow, P. M., N. C. Hughes, and N. R. McKenzie. "Reconstructing the Himalayan margin prior to collision with Asia: Proterozoic and lower Paleozoic geology and its implications for Cenozoic tectonics." Geological Society, London, Special Publications 483, no. 1 (2018): 39–64. http://dx.doi.org/10.1144/sp483.10.

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AbstractReconstructing the stratigraphic architecture of deposits prior to Cenozoic Himalayan uplift is critical for unravelling the structural, metamorphic, depositional and erosional history of the orogen. The nature and distribution of Proterozoic and lower Paleozoic strata have helped elucidate the relationship between lithotectonic zones, as well as the geometries of major bounding faults. Stratigraphic and geochronological work has revealed a uniform and widespread pattern of Paleoproterozoic strata >1.6 Ga that are unconformably overlain by <1.1 Ga rocks. The overlying Neoproteroz

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16

Alao, P. A., S. O. Olabode, and S. A. Opeloye. "Integration of Seismic and Petrophysics to Characterize Reservoirs in “ALA” Oil Field, Niger Delta." Scientific World Journal 2013 (2013): 1–15. http://dx.doi.org/10.1155/2013/421720.

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In the exploration and production business, by far the largest component of geophysical spending is driven by the need to characterize (potential) reservoirs. The simple reason is that better reservoir characterization means higher success rates and fewer wells for reservoir exploitation. In this research work, seismic and well log data were integrated in characterizing the reservoirs on “ALA” field in Niger Delta. Three-dimensional seismic data was used to identify the faults and map the horizons. Petrophysical parameters and time-depth structure maps were obtained. Seismic attributes was als

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Kozlova, I. A., and D. D. Borisova. "Evaluation of hydrocarbon resources of the Devonian terrigenous rock basin of Perm Region." IOP Conference Series: Earth and Environmental Science 1021, no. 1 (2022): 012011. http://dx.doi.org/10.1088/1755-1315/1021/1/012011.

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Abstract The geological structure of the Devonian terrigenous complex within the Bashkirian arch located in the well-explored southern part of Perm Krai has been considered in the paper. Due to the limited extent and complex structure of the bulk of reservoir rock in the prospective horizons, these deposits are explored unevenly, usually alongside with the overlying oil and gas bearing complexes. On the basis of the performed analysis of systematic data, the authors justify quantitative parameters for evaluation of non-localized resources after the method of comparative geological analogies in

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Kumar, Madhav, R. K. Saxena, and Anil Chandra. "Dispersed organic matter from Neogene and Pleistocene sediments of Site 218 of Deep Sea Drilling Project Leg 22, Bengal Fan, Indian Ocean." Journal of Palaeosciences 53, no. (1-3) (2004): 155–60. http://dx.doi.org/10.54991/jop.2004.221.

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Dispersed organic matter has been recorded from the Neogene-Pleistocene sediments of site 218 of the Deep Sea Drilling Project Leg 22, Bengal Fan and depositional environment of the studied sequences has been deduced. An attempt has been made to calibrate frequency abundance of organic matter in order to identify variation at various depth levels. Based on the occurrence and frequency of various types of organic matter the borehole section has been divided into lower, middle and upper zones. The lower zone is rich in biodegraded terrestrial organic matter, whereas the upper zone exhibits abund

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19

Haig, D. Brian. "The Hutton Field, Blocks 211/28, 211/27, UK North Sea." Geological Society, London, Memoirs 14, no. 1 (1991): 135–43. http://dx.doi.org/10.1144/gsl.mem.1991.014.01.17.

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AbstractThe Hutton oil field is situated in the East Shetlands Basin in the UK North Sea on the western side of the Viking Graben. It straddles UK Blocks 211/27 and 211/28. The field was discovered in July 1973 by the Conoco well 211/28-la and is operated by Conoco (UK) Limited. The structure comprises a series of southwesterly dipping tilted fault blocks. The reservoir sandstones are Middle Jurassic in age and were deposited as a result of deltaic progradation across the Hutton area. The oil bearing Brent Group sandstones vary in thickness from 150 ft to 380 ft with average porosities of 22%

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Pedersen, Anette Mønsted. "Pliocene - Middle Pleistocene biostratigraphy in the Central Danish North Sea wells E-1, P-1 and TWB-12." Danmarks Geologiske Undersøgelse Serie C 13 (December 31, 1995): 1–28. http://dx.doi.org/10.34194/seriec.v13.7117.

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Six foraminiferal assemblage zones and 6 subzones have been identified in the boreholes TWB-12, P-1 and E-1. The zones cover the interval from the Pliocene to the Middle Pleistocene. In TWB-12 and E-1 the Pliocene /Pleistocene boundary is placed at the first common occurrence of the species Elphidium oregonense. This species was not found in P-1, and the boundary is here, tentatively, placed above the last local occurrence of Cibicides grossus. The palaeoecological variations indicated by the Pleistocene assemblages, suggest several oscillations both in water depth and in palaeotemperature. A

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Chatterjee, Baijayanti. "Ecology and Imperium: State Formation in Early Colonial Bengal c. 1765–1800." Indian Historical Review 47, no. 2 (2020): 263–81. http://dx.doi.org/10.1177/0376983620968013.

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This article looks at the process of state formation in Bengal in the second half of the eighteenth century when the English East India Company emerged as the paramount authority in the province. The article argues that compared with the previous regime of the Nazims who were content in exercising a loose sovereignty over the outlying regions of Bengal, the Company showed greater initiative in conquering and pacifying the remote areas of the province. In terms of its ecology, the province of Bengal could be divided into three distinct zones: the plains, the hills and the delta. The process of

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22

Smith, S. A., P. R. Tingate, C. M. Griffths, and J. N. F. Hull. "THE STRUCTURAL DEVELOPMENT AND PETROLEUM POTENTIAL OF THE ROEBUCK BASIN." APPEA Journal 39, no. 1 (1999): 364. http://dx.doi.org/10.1071/aj98020.

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The Roebuck Basin is a sparsely explored, frontier province located between the Carnarvon and Browse basins on Australia's North West Shelf. Mapping of the main structural and depositional elements of the basin has led to the identification of new features and elucidated the basin's tectonic history.The newly-identified Oobagooma High is a 25 km wide north-south oriented, elongate structure that separates the Oobagooma and Rowley sub-basins at the Palaeozoic level. This structure links with the Bedout High to form a major hinge zone that stretches across the entire basin.In the study area, thr

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Munduzova, M. "Conditions for the formation of ore-bearing Lower-Middle Paleozoic sedimentary formations of the Chatkal-Qurama Mountains of Uzbekistan." Vestnik of geosciences, no. 2 (April 24, 2024): 17–29. http://dx.doi.org/10.19110/geov.2024.2.2.

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The article describes stratiform lead-zinc and polymetallic deposits in Paleozoic sedimentary rocks of the southwestern Tien Shan of the Chatkal-Qurama Mountains using rhythmostratigraphic analysis developed by professor at Tashkent State University V. I. Popov (Popov et al., 1963; Popov, 1980). Tectonic movements play a major role in the formation of new structural elements of the lithosphere and the earth's surface. Large tectonic movements spread over large areas and become regional tectonic rhythms. Considerable phases of tectonic movements were divided into smaller phases. We observed the

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Dehghani, Kaveh, and Robert Ehrlich. "Evaluation of the Steam-Injection Process in Light-Oil Reservoirs." SPE Reservoir Evaluation & Engineering 4, no. 05 (2001): 395–405. http://dx.doi.org/10.2118/73403-pa.

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Summary Feasibility of steam injection for three light-oil reservoirs in different geologic settings has been evaluated. The settings studied were a waterflooded deltaic sandstone, a waterflooded vuggy dolomite, and a deltaic sandstone structural trap with a gas cap. Optimization of steam injection to take advantage of individual reservoir characteristics is demonstrated. Results show that light-oil steamfloods can be designed to take advantage of post-secondary oil-saturation distribution. The resulting project may be carried out in a considerably different fashion from that of conventional h

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BUATOIS, LUIS A. "Treptichnus pedumand the Ediacaran–Cambrian boundary: significance and caveats." Geological Magazine 155, no. 1 (2017): 174–80. http://dx.doi.org/10.1017/s0016756817000656.

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AbstractThe Ediacaran–Cambrian (E-C) boundary is based on the first appearance of the ichnofossilTreptichnus pedum. Investing an ichnotaxon with such biostratigraphic pre-eminence has been the focus of criticism. Points of contention have revolved around four main issues: (1) ichnotaxonomy, (2) behavioural significance, (3) facies controls and (4) stratigraphic occurrence. First, confusion results from the fact thatTreptichnus pedumwas originally referred to asPhycodes pedumand, more recently, some authors have placed it inTrichophycusorManykodes. However, the overall geometry of these burrows

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Fuchs, Matthias, Juri Palmtag, Bennet Juhls, et al. "High-resolution bathymetry models for the Lena Delta and Kolyma Gulf coastal zones." Earth System Science Data 14, no. 5 (2022): 2279–301. http://dx.doi.org/10.5194/essd-14-2279-2022.

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Abstract. Arctic river deltas and deltaic near-shore zones represent important land–ocean transition zones influencing sediment dynamics and nutrient fluxes from permafrost-affected terrestrial ecosystems into the coastal Arctic Ocean. To accurately model fluvial carbon and freshwater export from rapidly changing river catchments as well as assess impacts of future change on the Arctic shelf and coastal ecosystems, we need to understand the sea floor characteristics and topographic variety of the coastal zones. To date, digital bathymetrical data from the poorly accessible, shallow, and large

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Fuchs, Matthias, Juri Palmtag, Bennet Juhls, et al. "High-resolution bathymetry models for the Lena Delta and Kolyma Gulf coastal zones." Earth System Science Data 14, no. 5 (2022): 2279–301. https://doi.org/10.5194/essd-14-2279-2022.

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Arctic river deltas and deltaic near-shore zones represent important land–ocean transition zones influencing sediment dynamics and nutrient fluxes from permafrost-affected terrestrial ecosystems into the coastal Arctic Ocean. To accurately model fluvial carbon and freshwater export from rapidly changing river catchments as well as assess impacts of future change on the Arctic shelf and coastal ecosystems, we need to understand the sea floor characteristics and topographic variety of the coastal zones. To date, digital bathymetrical data from the poorly accessible, shallow, and large areas of t

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Banjade, Deepak, Kabir Sharma, and Khum N. Paudayal. "Vegetation and climate from Late Quaternary Thimi Formation (Phaidhoka Section), Bhaktapur, Nepal." Journal of Nepal Geological Society 50, no. 1 (2015): 1–12. http://dx.doi.org/10.3126/jngs.v50i1.22847.

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The Thimi Formation is fluvio-deltaic deposit that constitutes the uppermost part of the sedimentary sequence in the Kathmandu Basin, and is featured by carbonaceous and diatomaceous clay, silty clay, silt, fine to medium grained sand beds, and thin to medium lignite beds. The Phaidhoka Section is located on the way to Nala from Chyamasingh, and is one of the major exposures of the Thimi Formation. Forty four samples were collected from 25 m thick surface exposure for palynological study. The study revealed the dominance of gymnosperm over the angiosperm and herbaceous members. The pollen diag

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Li, Song, Alexandra Christensen, and Robert R. Twilley. "Benthic fluxes of dissolved oxygen and nutrients across hydrogeomorphic zones in a coastal deltaic floodplain within the Mississippi River delta plain." Biogeochemistry 149, no. 2 (2020): 115–40. http://dx.doi.org/10.1007/s10533-020-00665-8.

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Beres, Milan, Alan G. Green, and Andre Pugin. "Diapiric origin of the Chessel-Noville Hills of the Rhone Valley interpreted from georadar mapping." Environmental and Engineering Geoscience 6, no. 2 (2000): 141–53. http://dx.doi.org/10.2113/gseegeosci.6.2.141.

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Abstract In an attempt to understand the origin of the enigmatic Chessel-Noville hills in the Rhone River plain of western Switzerland, we have recorded two and three-dimensional ground-penetrating radar (georadar) data and drilled six shallow boreholes. Cross-sections and maps of horizons extracted from the georadar data reveal normal fault zones under the hill flanks and minor grabens and domes below the hill crests. Comparable graben-like structures with normal step faults converging with depth are observed at a nearby outcrop. Fine sand and silt within some of the exposed faults may have b

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Tsanakas, K., K. Gaki-Papanastassiou, S. E. Poulos, and H. Maroukian. "GEOMORPHOLOGY AND SEDIMENTOLOGICAL PROCESSES ALONG THE COASTAL ZONE BETWEEN LIVANATES AND AGIOS KONSTANTINOS (N. EVOIKOS GULF, CENTRAL GREECE)." Bulletin of the Geological Society of Greece 43, no. 1 (2017): 506. http://dx.doi.org/10.12681/bgsg.11201.

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This study deals with aspects of geomorphology and nearshore marine processes in the coastal zone located between Livanates and Agios Konstantinos (North Evoikos Gulf, central Greece). Evoikos Gulf is a tectonic graben bounded by WNW-ESE trending normal faults; it can be further characterized as semi-closed marine basin with water depths exceeding 400m.The Coastal geomorphology is affected by active tectonics with the most prominent morphological features being the uplifted marine terraces and the well-developed deltaic fan of Xerias torrent. In the present investigation, detailed geomorpholog

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NAZIK, ATIKE. "Planktonic foraminiferal biostratigraphy of the Neogene sequence in the Adana Basin, Turkey, and its correlation with standard biozones." Geological Magazine 141, no. 3 (2004): 379–87. http://dx.doi.org/10.1017/s0016756804009148.

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The aim of this study is to describe the biostratigraphic, chronostratigraphic and ecostratigraphic relationships of the Neogene sequence in the Adana Basin. The Adana Basin is located in southern Turkey, and bordered by the Tauride Orogenic Belt to the north, the Amanos Mountains to the east, the Mediterranean coast to the south and the Ecemiş Fault Zone to the west. From base to top, the Neogene sequence consists of the Gildirli Formation (continental redbeds), the shallow marine Kaplankaya Formation, the reefal limestones of the Karaisalı Formation, the shales of the Güvenç Formation (slope

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Zhu, Xiaomin, Xin Hu, Yanlei Dong, Xiaolin Wang, Yiming Xu, and Qin Zhang. "Response of Seismic Geomorphology to Sequence Framework in Dainan Formation of the Gaoyou Sag, Eastern China." Applied Sciences 15, no. 8 (2025): 4153. https://doi.org/10.3390/app15084153.

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Seismic sedimentology and sequence stratigraphy, as emerging interdisciplinary fields, demonstrate unique advantages in characterizing seismic geomorphological responses of various system tracts within the stratigraphic frameworks of rift lacustrine basins. Focusing on the Paleogene Dainan Formation in the Gaoyou Sag of the Subei Basin, eastern China, this study integrates seismic termination patterns, sedimentary cyclicity analysis, and well-to-seismic calibration to subdivide the formation into three third-order sequences containing lowstand (LST), transgressive (TST), and highstand (HST) sy

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Carpenter, Chris. "Approach Interprets Fracture Growth Through Microseismic Quiescent Zones." Journal of Petroleum Technology 77, no. 06 (2025): 1–4. https://doi.org/10.2118/0625-0018-jpt.

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_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 223533, “Fracture Growth Through Microseismic Quiescent Zones: Indication of Stealth or Complex Fracturing?” by Shawn C. Maxwell, SPE, Stacy Doss, and Robert Holman, Ovintiv, et al. The paper has not been peer reviewed. _ Microseismicity levels tend to vary from one lithological unit to the next, with some layers being predominantly quiet and lacking any microseismicity. Because shear-activated deformation associated with microseismicity will depend on the geomechanical properties and natural fab

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Scibiorski, Joe, Daniel Peyrot, Simon Lang, Tobias H. D. Payenberg, and Adam Charles. "Depositional settings and palynofacies assemblages of the Upper Triassic fluvio-deltaic Mungaroo Formation, northern Carnarvon Basin, Western Australia." Journal of Sedimentary Research 90, no. 4 (2020): 403–28. http://dx.doi.org/10.2110/jsr.2020.21.

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ABSTRACT Palynofacies analysis was carried out on 92 core samples from the fluvio-deltaic Middle to Upper Triassic Mungaroo Formation, Northern Carnarvon Basin, Western Australia. The analyses demonstrate that each depositional environment (“depofacies”) sampled has a characteristic palynofacies assemblage reflecting the varied origins, transport, sorting, and preservation histories of organic particles in sediments. The sampling covered a wide range of depofacies identified in fluvial channel, floodplain, crevasse splay, distributary channel, and tidal zone paleoenvironments and included lami

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Kudiyarov, A. G., S. I. Grachev, and T. K. Apasov. "APPLICATION OF CROSS-BEDDING OF DELTAIC SEDIMENTATION ENVIRONMENT TERRIGENOUS DEPOSITS TO IDENTIFY RESIDUAL RECOVERABLE OIL RESERVES AT A STAGE IV FIELD." Problems of Gathering Treatment and Transportation of Oil and Oil Products, no. 3 (June 20, 2025): 27–44. https://doi.org/10.17122/ntj-oil-2025-3-27-44.

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The article studies the structure of terrigenous reservoirs from the standpoint of facies heterogeneity using the BS-9 formation of the Sugmutskoye field, which is at stage IV of development, as an example. The facies nature of the reservoir determines the differences in its textural features and the manifestation of layered heterogeneity. Spatial orientation of oblique layers in relation to the coastline, which depends on the facies affiliation, can become an important tool not only for establishing facies and spatial forecasting of sand bodies, but also for improving the elements of the hydr

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Naskar, Madhab, Ruby Ghosh, and Subir Bera. "Variability in phytolith spectra of some Panicoid grasses from different soil salinity zones of the deltaic West Bengal, India: implications in understanding depositional environments." Botany Letters 165, no. 2 (2018): 255–64. http://dx.doi.org/10.1080/23818107.2017.1412835.

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Leborgne, Romain, Michael O. Rivett, Gift J. Wanangwa, Philippe Sentenac, and Robert M. Kalin. "True 2-D Resistivity Imaging from Vertical Electrical Soundings to Support More Sustainable Rural Water Supply Borehole Siting in Malawi." Applied Sciences 11, no. 3 (2021): 1162. http://dx.doi.org/10.3390/app11031162.

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To improve borehole siting for rural water supply, an advanced resistivity method was adapted for developing country use and demonstrated in Malawi. The method was designed to be low cost, developing-country accessible, efficient. It allows single or multiple operators to acquire the multiple vertical electrical soundings (VESs) required that are inverted together in 2-D, to give a true cross-section of subsurface resistivity. Application at four sites generated true cross-sections of subsurface resistivity to around 100 m depth relevant to groundwater-resource investigation. A wide range of (

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Esterle, J. S., G. Le Blanc Smith, and J. V. R. Yago. "GEOMETRY AND CONNECTIVITY OF DISTRIBUTARY CHANNEL SANDSTONES IN THE LATE PERMIAN MORANBAH COAL MEASURES, BOWEN BASIN, AUSTRALIA." APPEA Journal 40, no. 1 (2000): 379. http://dx.doi.org/10.1071/aj99022.

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The fluvio-deltaic Moranbah Coal Measures are an extensively mined Late Permian coal-bearing sequence that crops out along the western limb of the Bowen Basin, Queensland. Data from operating coal mines provide high resolution datasets for detailed petroleum reservoir analogue studies. In this study, data from subsurface drilling and high wall exposures were used to produce a three-dimensional sub surface model of coal and sandstone geometry in a 200 m stratigraphic section over an area of 184 km2. Detailed analysis of the interval between the extensive Goonyella Middle seam and the 'P'-Tuff i

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Popova, Katya, Ivan Rusanov, and Aleksandr Mogilev. "Conditions for accumulation of coal-bearing formations in South-Eastern Europe during the Carboniferous." Geologica Balcanica 22, no. 4 (1992): 43–51. http://dx.doi.org/10.52321/geolbalc.22.4.43.

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Some general regularities of the evolution of sedimentation in the regional structures of South Eastern Europe during the Carboniferous have been derived by an analysis of the location of four large coal basins as the Dobrudzha and Svoge basins in Bulgaria and the Donetsk and Lvov-Volinsk ones in South-West USSR. Direct relationship between the general regressive direction of tectonic movements and the orogenic stage of development of Variscan folded zones were established. This relationship is best defined in the western parts of the studied region where the coal-bea ring formations are chara

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Mishra, Siba Prasad. "The Geohazard as Land Subsidence in Anthropocene, India." Journal of Geography, Environment and Earth Science International 27, no. 12 (2023): 45–63. http://dx.doi.org/10.9734/jgeesi/2023/v27i12736.

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Land subsidence events, natural or anthropogenic, will be future national challenges for India. The positioning of the Indian plate in the globe, and human activities on the frustum compel land subsidence everywhere, on mountains, in deltas, riverbeds and in settlements. Many mega deltas of the globe including India are sinking, shrinking, and subsiding which shall invite catastrophes. The present search uses the available datasets in print media, books, information technology and electronic media. The survey responses sourced from websites were physically ground verified, etc. Consideri

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Bomer, Edwin J., Carol A. Wilson, and Dilip K. Datta. "An Integrated Approach for Constraining Depositional Zones in a Tide-Influenced River: Insights from the Gorai River, Southwest Bangladesh." Water 11, no. 10 (2019): 2047. http://dx.doi.org/10.3390/w11102047.

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The tidal to fluvial transition (TFT) of estuaries and coastal rivers is one of the most complex environments on Earth with respect to the transportation and deposition of sediment, owing in large part to competing fluvial and marine processes. While there have been recent advances in the stratigraphic understanding of the TFT, it is still unclear whether these findings are site-specific or representative of mixed tidal-fluvial systems worldwide. Yet, research from this depositional domain holds profound societal and economic importance. For instance, understanding the underlying stratigraphic

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Aminu, Mu’awiya B., Changde A. Nanfa, Zulaihat J. Sanni, et al. "Hydrocarbon Potential of the South-Western Part of the Cauto Basin, Cuba." European Journal of Environment and Earth Sciences 3, no. 1 (2022): 36–47. http://dx.doi.org/10.24018/ejgeo.2022.3.1.242.

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The “Assessment of the southwestern of the Cauto Basin and its oil and Gas possibilities in Cuba” was carried out with the objective of evaluating the southwestern part of the Cauto Basin in Cuba from the geological and geophysical point of view, with the southwestern of the Basin as a foundation of the petroleum system models. The method of investigation employed included interpretation of the seismic lines, the surface geology, the well logging data, gravimetric and magnetometrics data. The research was developed in three fundamental stages: I) Preliminary stage, II) Data processing and III)

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Kokin, A., and R. Kravcov. "Evolution of gold sources in the process of formation of gold deposits (evidence from Eastern Yakutia)." Vestnik of geosciences, no. 10 (December 7, 2022): 23–35. http://dx.doi.org/10.19110/geov.2022.10.3.

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In contrast to the established ideas about the relationship of gold mineralization with any specific source, a model is proposed for the evolution of different sources during the formation of geological structures in the eastern framing of the Siberian Platform. The model is based on the calculation of regional clarkes of sedimentary, igneous rocks and minerals with the allocation of stratigraphic levels of primary gold enrichment in sedimentary rocks. The poly-stage and multi-stage nature of the evolution of sources is established through the redistribution of gold in the composition of sedim

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Bushuiev, Sergii, Sergii Snigirov, Mikhail O. Son, Ievhen Sokolov, Genadiy Kharlov, and Yuriy Kvach. "Expansion of the alien East Asian river prawn Macrobrachium nipponense (De Haan, 1849) in southwestern Ukraine and assessment of its commercial usage prospects." Aquatic Invasions 18, no. 2 (2023): 231–46. http://dx.doi.org/10.3391/ai.2023.18.2.104092.

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At this time East Asian river prawn Macrobrachium nipponense is present almost everywhere in the lower reaches of the Danube and Dniester basins, in the Danube-Dniester interfluves and water bodies to the east of the Dniester. Successful adaptation and favorable climatic conditions in recent years have provided a significant increase in the East Asian river prawn populations in the Danube and Dniester. High growth rates of M. nipponense have been observed in the Danube and Dniester. In these river basins, higher values of maximum body length of the prawn (males 115 mm, females 87 mm) than thos

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Saranaathan, S. E., S. Yamini, and S. Prasanna Venkatesh. "Evolution of Quaternary Landforms Between Vedaranniyam and Rameswaram - A Case Study." E3S Web of Conferences 477 (2024): 00023. http://dx.doi.org/10.1051/e3sconf/202447700023.

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Coast is a significant place where land and sea or oceans meet that form the boundary between them. The coastal area is frequently susceptible to natural disasters like – tsunamis, cyclones, erosion, etc. and anthropogenic activities like the construction of harbor, jetties, breakwaters, and groins. These hazards are often affecting coastal zones and marine ecosystems. Usual aeolian, fluvial, tidal, and fluvial-tidal events primarily control the morpho dynamic changes along this coast. Tamil Nadu’s coastline, which makes up the south-eastern portion of the Coromendal coast, is parallel to the

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Bushuiev, Sergii, Sergii Snigirov, Mikhail O. Son, Ievhen Sokolov, Genadiy Kharlov, and Yuriy Kvach. "Expansion of the alien East Asian river prawn Macrobrachium nipponense (De Haan, 1849) in southwestern Ukraine and assessment of its commercial usage prospects." Aquatic Invasions 18, no. (2) (2023): 231–46. https://doi.org/10.3391/ai.2023.18.2.104092.

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At this time East Asian river prawn Macrobrachium nipponense is present almost everywhere in the lower reaches of the Danube and Dniester basins, in the Danube-Dniester interfluves and water bodies to the east of the Dniester. Successful adaptation and favorable climatic conditions in recent years have provided a significant increase in the East Asian river prawn populations in the Danube and Dniester. High growth rates of M. nipponense have been observed in the Danube and Dniester. In these river basins, higher values of maximum body length of the prawn (males 115 mm, females 87 mm) than thos

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Niculescu, Bogdan Mihai, and Victor Mocanu. "Characterization of Pliocene Biogenic Gas Reservoirs from the Western Black Sea Shelf (Romanian Offshore) by Integration of Well Logs and Core Data." Energies 14, no. 20 (2021): 6629. http://dx.doi.org/10.3390/en14206629.

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The successful interpretation of open-hole well logging data relies on jointly using all available petrophysical and geological information. This paper presents relevant case studies related to the integration of well logs with core measurements for exploration wells drilled in the Romanian continental shelf area of the Western Black Sea basin. The analyzed wells targeted gas-bearing sands and silts complexes of Early Pliocene (Dacian) age, developed in a deltaic to shallow marine sedimentary environment in two distinct fields. The wireline logging programs included conventional formation eval

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Niculescu, Bogdan Mihai, and Victor Mocanu. "Characterization of Pliocene Biogenic Gas Reservoirs from the Western Black Sea Shelf (Romanian Offshore) by Integration of Well Logs and Core Data." Energies 14, no. 20 (2021): 6629. http://dx.doi.org/10.3390/en14206629.

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The successful interpretation of open-hole well logging data relies on jointly using all available petrophysical and geological information. This paper presents relevant case studies related to the integration of well logs with core measurements for exploration wells drilled in the Romanian continental shelf area of the Western Black Sea basin. The analyzed wells targeted gas-bearing sands and silts complexes of Early Pliocene (Dacian) age, developed in a deltaic to shallow marine sedimentary environment in two distinct fields. The wireline logging programs included conventional formation eval

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Eberth, David A., and Sandra L. Kamo. "High-precision U–Pb CA–ID–TIMS dating and chronostratigraphy of the dinosaur-rich Horseshoe Canyon Formation (Upper Cretaceous, Campanian–Maastrichtian), Red Deer River valley, Alberta, Canada." Canadian Journal of Earth Sciences 57, no. 10 (2020): 1220–37. http://dx.doi.org/10.1139/cjes-2019-0019.

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The non-marine Horseshoe Canyon Formation (HCFm, southern Alberta) yields taxonomically diverse, late Campanian to middle Maastrichtian dinosaur assemblages that play a central role in documenting dinosaur evolution, paleoecology, and paleobiogeography leading up to the end-Cretaceous extinction. Here, we present high-precision U–Pb CA–ID–TIMS ages and the first calibrated chronostratigraphy for the HCFm using zircon grains from (1) four HCFm bentonites distributed through 129 m of section, (2) one bentonite from the underlying Bearpaw Formation, and (3) a bentonite from the overlying Battle F

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