Article
Geosciences, Multidisciplinary
Andres Cedeno, Sverre Ohm, Alejandro Escalona, Dora Marin, Snorre Olaussen, Thomas Demchuk
Summary: This study characterizes the organofacies changes within the Alge and Krill members of the Upper Jurassic to Lower Cretaceous Hekkingen Formation through geochemical and petrographic analysis, finding that there are differences in organic composition between the two members, leading to the formation of distinct petroleum source rocks.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Andres Cedeno, Sverre Ohm, Alejandro Escalona, Dora Marin, Snorre Olaussen, Thomas Demchuk
Summary: The study evaluated the petroleum generation potential of organic rich shales from the southwestern Barents Sea using various analyses. It found that the samples contain different proportions of kerogen types and have the potential to generate low GOR oils and varying amounts of wet gas. Additionally, petroleums with similar compositional and physical properties are predicted to have been generated from different organic facies in thermally mature areas within the studied region.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Environmental Sciences
Ziyi Cai, Qinglong You, Hans W. Chen, Ruonan Zhang, Deliang Chen, Jinlei Chen, Shichang Kang, Judah Cohen
Summary: In recent decades, the Barents Sea has warmed more than twice as fast as the rest of the Arctic in winter. This study reveals that enhanced clear-sky downward longwave radiation and increased total column water vapor are the main causes of the warming. Furthermore, the Barents oscillation, an atmospheric variability mode, has strongly contributed to the amplified warming through enhanced heat and moisture transport.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Morten Bjerager, Peter Alsen, Jorgen A. Bojesen-Koefoed, Michael B. W. Fyhn, Jussi Hovikoski, Nynke Keulen, Sofie Lindstrom, Jens Therkelsen, Tonny B. Thomsen
Summary: The Wandel Sea Basin in North Greenland was a part of the Boreal Sea during the Triassic period, forming the western margin of the northernmost Atlantic sea. Through a multidisciplinary dataset, including sedimentology, biostratigraphy, organic geochemistry, and sedimentary provenance, the evolution of the basin has been documented. The basin experienced marine deposition from the Dienerian to the Norian, with sediments sourced from the Greenlandic Caledonian basement and deposited on a 100 km wide shallow marine shelf during the Early Triassic.
Article
Geosciences, Multidisciplinary
Angelica Arlebrand, Carita Augustsson, Alejandro Escalona, Sten-Andreas Grundvag, Dora Marin
Summary: This study explores the impact of depositional environment on the final reservoir quality by analyzing facies and their correlation with primary textures, composition, and diagenetic alteration in four Lower Cretaceous sandstone reservoirs in the southwestern Barents Sea. The study reveals that slope-to-basin-floor sandstone has the highest porosity due to factors like good sorting and non-pervasive carbonate cementation, while deltaic sandstone shows varying porosity influenced by energy levels and sediment supply. The distal shallow-marine sandstone reservoir has the lowest porosity, likely due to deposition in a low energy environment with low sediment supply.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geology
Shiori Kanno, Sayaka Tokumaru, Shuhei Nakagaki, Yasuhisa Nakajima, Akihiro Misaki, Yoshinori Hikida, Tamaki Sato
Summary: This study describes 51 fossil shark teeth, including Hexanchiformes, Echinorhiniformes, Squaliformes, and Lamniformes, from two localities in Hokkaido, Japan. The presence of Protosqualus in the northwestern Pacific suggests the early Campanian onset of deep-water adaptation for Squaliformes in this region. Different sedimentary settings at the two localities may have influenced the taxonomic compositions. The co-existence of Hexanchiformes and Lamniformes in contemporaneous Japanese fauna and southern high latitudes indicates the paleogeographic effects on the global distribution of Upper Cretaceous neoselachian taxa.
CRETACEOUS RESEARCH
(2022)
Article
Geology
Richard O. Lease, David W. Houseknecht, Andrew R. C. Kylander-Clark
Summary: Sequence stratigraphy provides a framework for interpreting sedimentary basin evolution. This study uses detrital zircon U-Pb (DZ) dating and seismic mapping to establish a chronostratigraphic framework for the Torok-Nanushuk clinothem of Arctic Alaska. The study reveals the timing and duration of key depositional elements and captures the chronology of a large regressive-transgressive cycle.
Article
Geosciences, Multidisciplinary
Jianping Zhou, Istvan Dunkl, Yongjiang Liu, Sanzhong Li, Weimin Li, Hilmar von Eynatten
Summary: The Cretaceous sedimentary successions in NE China are largely incomplete due to basin inversion and erosion of younger strata. The connection between the Songliao Basin and the eastern basin group is still debated, as well as the extent of the pan-Sanjiang proto-basin. The study of modern river catchments reveals inconsistencies between detrital age patterns and spatial proportions of source units, leading to a refined Cretaceous provenance history.
GEOSCIENCE FRONTIERS
(2023)
Article
Agriculture, Multidisciplinary
W. U. Xiao-li, L. I. U. Miao, L. Chao-su, Allen David (Jack) Mchugh, L. Ming, X. I. O. N. G. Tao, L. I. U. Yu-bin, T. A. N. G. Yong-lu
Summary: The source-sink ratio affects wheat yield, but is influenced by climate and nitrogen deficiency. An increase in sink capacity leads to a higher degree of source limitation. Chuanmai 104 shows better performance in source-sink relations.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2022)
Article
Geology
O. Mantilla, F. J. Hernandez-Molina, N. Scarselli
Summary: This study describes a large, asymmetric mounded deposit formed in deepwater environments, which shares similarities with deltaic or shelf margin systems. The analysis suggests that bottom currents can create complex deposits with geometries resembling clinothems in deepwater environments.
Article
Geography, Physical
An-Bo Luo, Jian-Jun Fan, Bo-Chuan Zhang, Yu-Jie Hao
Summary: The Tibetan Plateau experienced uplift during the late Mesozoic, with intense volcanic activity and rapid crustal uplift in the Late Cretaceous. The central and northern regions also underwent rapid uplift during this time, marking the end of marine sedimentation. The uplift was influenced by the closure of the Bangong-Nujiang Tethyan Ocean and the northwards subduction of the Neo-Tethys Ocean.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Multidisciplinary Sciences
Zhongfang Liu, Camille Risi, Francis Codron, Zhimin Jian, Zhongwang Wei, Xiaogang He, Christopher J. Poulsen, Yue Wang, Dong Chen, Wentao Ma, Yanyan Cheng, Gabriel J. Bowen
Summary: The last two decades have witnessed significant decline and year-to-year variability in Arctic winter sea ice, particularly in the Barents-Kara Sea region. These changes are believed to be associated with extreme midlatitude weather and climate, and are primarily driven by atmospheric circulation patterns.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Geosciences, Multidisciplinary
Licheng Wang, Lijian Shen, Chenglin Liu, Ke Chen, Lin Ding, Chengshan Wang
Summary: This study characterized the provenance and drainage system evolution of the Upper Cretaceous Yunlong Formation in the Lanping Basin using detrital zircon U-Pb ages and Hf isotopic analysis. The results revealed a complex hierarchical drainage pattern on the eastern margin of the Tibetan Plateau during the Late Cretaceous.
GEOSCIENCE FRONTIERS
(2021)
Article
Meteorology & Atmospheric Sciences
Yu-Chiao Liang, Young-Oh Kwon, Claude Frankignoul
Summary: This study reveals a close connection between a boreal autumn sea ice dipole in the Arctic Pacific sector and sea ice anomalies in the Barents Sea during the following spring. A prediction model using the Arctic Pacific sea ice dipole with 7-month lead time shows significant prediction skills. The linkage between the two regional sea ice anomalies is suggested to involve positive stratospheric polar cap anomalies and a negative North Atlantic Oscillation-like pattern in midwinter.
JOURNAL OF CLIMATE
(2021)
Article
Geosciences, Multidisciplinary
Francesco Cappuccio, Massimiliano Porreca, Kamaldeen Olakunle Omosanya, Giorgio Minelli, Dicky Harishidayat
Summary: This study focuses on the geochemical characterization of source rocks in the Barents Sea, showing that some formations have good organic carbon content and all formations tend to be mixed gas-oil prone. The results confirm that the Passey method can be an alternative to infer geological information when geochemical data are not available.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2021)
Article
Geology
Faye Walker, Nick Schofield, John Millett, Dave Jolley, Simon Holford, Sverre Planke, Dougal A. Jerram, Reidun Myklebust
Summary: This study presents the first high-resolution three-dimensional reconstruction of an ancient volcanic plumbing system, revealing a large laccolithic complex formed incrementally through amalgamation of smaller intrusions. Seismic reflection and gravity data show that the complex fed surface volcanism and an extensive sill network, with numerous sills indicating magma stalling at different levels during ascent. This research provides insight into the multicomponent plumbing system within a large ancient shield volcano for the first time.
Article
Geography, Physical
B. Bellwald, S. Planke, S. Polteau, N. Lebedeva-Ivanova, J. Faleide, S. M. Morris, S. Morse, S. Castelltort
Summary: The study describes the morphology and formation of the Bjornelva River Valley in the SW Barents Sea, suggesting it may represent a braided river system fed by outburst floods from a glacial lake. The valley's configuration could be useful for geohazard assessments in areas at risk of outburst flooding today and as an analogue for landscapes evolving in regions currently covered by ice sheets.
JOURNAL OF GLACIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Camilla L. Wurtzen, Johnathon L. Osmond, Jan Inge Faleide, Johan Petter Nystuen, Ingrid M. Anell, Ivar Midtkandal
Summary: The study provides a refined depositional model of the Permian-Triassic alluvial rift succession in the Horda Platform area by integrating seismic and well-log data. The research highlights the influence of faulting on depocentre development and the interplay between tectonic and climatic forcing in subsurface continental deposits.
Article
Geochemistry & Geophysics
Anett Blischke, Bryndis Brandsdottir, Martyn S. Stoker, Carmen Gaina, Ogmundur Erlendsson, Christian Tegner, Saemundur A. Halldorsson, Helga M. Helgadottir, Bjarni Gautason, Sverre Planke, Anthony A. P. Koppers, John R. Hopper
Summary: Volcanostratigraphic and igneous province mapping of the Jan Mayen microcontinent and Iceland Plateau Rift region provide new insights into the development of rift systems during breakup processes, revealing two breakup events, seven distinct tectono-magmatic phases, and four rift zones.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geosciences, Multidisciplinary
Faye Walker, Nick Schofield, John Millett, David Jolley, Sverre Planke, Simon Holford
Summary: Incised drainage systems can record ancient vertical crustal motion. A newly identified incised drainage system in the Faroe-Shetland Basin formed during a period of rapid uplift about 56 million years ago. This erosional surface is a composite feature, influenced by igneous intrusions, and records prolonged regional uplift.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2022)
Article
Geosciences, Multidisciplinary
Ben Manton, Philipp Muller, Adriano Mazzini, Dmitry Zastrozhnov, Dougal A. Jerram, John M. Millett, Daniel W. Schmid, Christian Berndt, Reidun Myklebust, Sverre Planke
Summary: Ancient and modern hydrothermal venting systems are related, as evidenced by the morphological similarities between the offshore mid-Norway vent complex and the Java venting system. Both systems are formed through the transport and eruption of fluidized sediments.
Article
Geosciences, Multidisciplinary
R. Muller, T. G. Klausen, L. H. Line, A. Hafeez, S. Planke, F. Eide, E. Stueland, J. Jahren, B. Rismyhr, S. Olaussen
Summary: This study focuses on the tectono-stratigraphic evolution of the Realgrunnen Subgroup in the Barents Sea, identifying seven major phases of deposition and non-deposition/erosion. The results are crucial for exploration and production in the Hoop Area and provide insights into the evolution of ultra-condensed successions during periods of non-deposition.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Camilla L. Wurtzen, Alvar Braathen, Miquel Poyatos-More, Mark J. Mulrooney, Lina H. Line, Ivar Midtkandal
Summary: By combining geological mapping, structural analysis, sedimentary logging and correlation, and bulk mineralogical compositions, our study reveals the cyclical stacking and basin-scale growth-fold patterns in the Fanja half-graben basin in Oman. This study links sedimentology and fault-displacement events controlling fault-perpendicular folding, and provides valuable insights into depocentre generation and stratigraphic architecture.
Article
Geosciences, Multidisciplinary
Gabriel M. Marins, Yaro Parizek-Silva, John M. Millett, Dougal A. Jerram, Lucas M. M. Rossetti, Ariany de Jesus e Souza, Sverre Planke, Leandro A. Bevilaqua, Isabela de O. Carmo
Summary: This study provides a comprehensive evaluation of volcanic reservoirs in offshore oil fields in Brazil, revealing the key role of primary volcanic facies and subsequent alteration history in determining reservoir properties.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Olivier Galland, Hector J. Villar, Jose Mescua, Dougal A. Jerram, Ivar Midtkandal, J. Octavio Palma, Sverre Planke, Alain Zanella
Summary: Cooling subvolcanic igneous intrusions have significant impacts on fluid flow in the shallow Earth's crust, but the long-term post-cooling effects have received less attention. We present a geological example in the Andean foothills, Argentina, showing that subvolcanic intrusions can affect fluid flow even millions of years after cooling. The intense fracturing during magma emplacement creates high-permeability pathways that continue to influence regional fluid circulation.
Article
Geosciences, Multidisciplinary
Camilla L. Wuertzen, Muhammad Hassaan, Ingrid M. Anell, Johan Petter Nystuen, Jan Inge Faleide, Ivar Midtkandal
Summary: This study uses spectral decomposition RGB Blends to interpret alluvial fans in seismic time slices from the Middle Triassic to Lower Jurassic stratigraphical interval of the Horda Platform (northern North Sea) for the first time. The analysis reveals shifting alluvial fan fronts, fluvial variability, uplift and erosion, and depositional elements that challenge the common understanding of the geological development of this area during the Early-Middle Mesozoic. The study emphasizes the impact of allogenic factors on alluvial depositional development and the implications of alluvial variability on reservoir properties.
Article
Geosciences, Multidisciplinary
Hans Jorgen Kjoll, Ivar Midtkandal, Sverre Planke, John Millett, Ben Manton, Kresten Anderskouv
Summary: This study describes and deciphers a late Maastrichtian to Danian-aged basin-floor depositional system in the deep outer More Basin, mid-Norwegian margin. The study integrates and utilizes wireline geophysical logs, detailed petrographic observations from side-wall cores, and seismic analysis. The research provides insights into sediment transport, provenance, and depositional processes in a pre-breakup source-to-sink sedimentary system near an infant ocean's breakup axis.
Article
Geology
Po Wan Wong, Ivar Midtkandal, Jan Inge Faleide
Summary: The presence of paired extension-compression (PEC) structures in the early Paleogene continental rift in the northeast Atlantic suggests its crucial role in termination of propagation and rift-mode conversion.
Article
Geosciences, Multidisciplinary
Christian Berndt, Sverre Planke, Carlos A. Alvarez A. Zarikian, Joost Frieling, Morgan T. T. Jones, John M. M. Millett, Henk Brinkhuis, Stefan Bunz, Henrik H. H. Svensen, Jack Longman, Reed P. P. Scherer, Jens Karstens, Ben Manton, Mei Nelissen, Brandon Reed, Jan Inge Faleide, Ritske S. S. Huismans, Amar Agarwal, Graham D. M. Andrews, Peter Betlem, Joyeeta Bhattacharya, Sayantani Chatterjee, Marialena Christopoulou, Vincent J. J. Clementi, Eric C. C. Ferre, Irina Y. Y. Filina, Pengyuan Guo, Dustin T. T. Harper, Sarah Lambart, Geoffroy Mohn, Reina Nakaoka, Christian Tegner, Natalia Varela, Mengyuan Wang, Weimu Xu, Stacy L. L. Yager
Summary: Widespread shallow-water hydrothermal venting in the North Atlantic, probably a source of methane, coincided with the onset of the Palaeocene-Eocene Thermal Maximum. This venting occurred around 56 million years ago and was caused by carbon input into the ocean and atmosphere, leading to a global warming event. The vents erupted in shallow water, resulting in the direct release of volatile emissions without oxidation to CO2, and played a key role in the carbon-cycle perturbation.
Article
Geosciences, Multidisciplinary
Morgan T. Jones, Ella W. Stokke, Alan D. Rooney, Joost Frieling, Philip A. E. Pogge von Strandmann, David J. Wilson, Henrik H. Svensen, Sverre Planke, Thierry Adatte, Nicolas Thibault, Madeleine L. Vickers, Tamsin A. Mather, Christian Tegner, Valentin Zuchuat, Bo P. Schultz
Summary: There is a temporal correlation between the peak activity of the North Atlantic Igneous Province (NAIP) and the Paleocene-Eocene Thermal Maximum (PETM), suggesting that the NAIP may have initiated and/or prolonged this extreme warming event. However, corroborating a causal relationship is hampered by a scarcity of expanded sedimentary records that contain both climatic and volcanic proxies.
CLIMATE OF THE PAST
(2023)