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Showing results 1-50 of 188 << Previous 1 2 3 4    Next >>

2021
1 Zuchuat, Valentin; Augland, Lars Eivind; Jones, Morgan Thomas; Twitchett, Richard; Rodríguez-Tovar, Francisco J.; Hammer, Øyvind; Senger, Kim; Betlem, Peter; Turner, Holly; Svensen, Henrik; Planke, Sverre.
Facies changes, volcanism, and mass extinction conundrum: the Permian-Triassic boundary across the Barents Sea Shelf. 35th IAS International Meeting of Sedimentology; 2021-06-21 - 2021-06-25
UiO UNIS Untitled
 
2 Hjalmarsdottir, Hanna Rosa; Hammer, Øyvind; Nagy, JenÅ‘; Grundvåg, Sten-Andreas.
Foraminiferal stratigraphy and palaeoenvironment of a storm-influenced marine shelf: upper Aptian – lower Albian, Svalbard, Arctic Norway. Cretaceous research (Print) 2021
UiO UiT UNIS Untitled
 
3 Park, Juni; Stein, Holly J.; Hannah, Judith L.; Georgiev, Svetoslav; Yang, Gang; Hammer, Øyvind; Olaussen, Snorre.
Re-Os geochronology of black shale from Central Spitsbergen, Svalbard: a stepping stone toward establishing the age of the J/K boundary.. Norwegian Geological Winter Meeting,; 2021-01-06 - 2021-01-08
UiO UNIS Untitled
 
2020
4 Engelschiøn, Victoria Sjøholt; Hammer, Øyvind; Hurum, Jørn Harald; Bernhardsen, Sofie; Wesenlund, Fredrik; Roberts, Aubrey Jane; Mørk, Atle.
Large-scale lateral trends in palaeoenvironment and oxygenation in the Middle Triassic Botneheia Fm. on Svalbard. Nordic Geological Winter Meeting 2020; 2020-01-08 - 2020-01-10
UiO NTNU UiT Untitled
 
5 Engelschiøn, Victoria Sjøholt; Wesenlund, Fredrik; Hurum, Jørn Harald; Hammer, Øyvind; Mørk, Atle.
East-west depositional trends and fossil preservation in the Middle Triassic Botneheia Fm. on Svalbard. ARCEx Annual Conference 2020; 2020-10-19 - 2020-10-22
UiO NTNU UiT Untitled
 
6 Hammer, Øyvind; Jørgensen, Marte Holten.
Flora Norvegica Radiographica - Norske planter i røntgen. Spartacus 2020 (ISBN 9788243012707) 274 p.
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7 Hammer, Øyvind; Jørgensen, Marte Holten.
Planter i røntgen. Biolog 2020 ;Volume 2. p. 25-28
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8 Hansen, Bitten Bolvig; Bucher, Hugo; Schneebeli-Hermann, Elke; Hammer, Øyvind.
The middle Smithian (Early Triassic) ammonoid Arctoceras blomstrandi: conch morphology and ornamentation in relation to stratigraphy. Papers in Palaeontology 2020 p. -
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9 Hurum, Jørn Harald; Delsett, Lene Liebe; Hammer, Øyvind; Nakrem, Hans Arne.
15 years with the Spitsbergen Mesozoic Research Group. NGF Abstracts and Proceedings of the Geological Society of Norway 2020 ;Volume 1. p. 98-98
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10 Mason, Matthew J.; Wenger, Lea M.D.; Hammer, Øyvind; Blix, Arnoldus S.
Structure and function of respiratory turbinates in phocid seals. Polar Biology 2020 ;Volume 43.(2) p. 157-173
UiO UiT Untitled
 
11 Svensen, Henrik; Hammer, Øyvind; Chevallier, Luc; Jerram, Dougal Alexander; Silkoset, Petter; Polteau, Stephane; Planke, Sverre.
Understanding thermogenic degassing in large igneous provinces: Inferences from the geological and statistical characteristics of breccia pipes in the western parts of the Karoo Basin. I: Mass extinctions, volcanism, and impacts. Geological Society of America 2020 ISBN 9780813725444. p. 67-84
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12 Zuchuat, Valentin; Sleveland, Arve; Twitchett, Richard; Svensen, Henrik; Turner, Holly; Augland, Lars Eivind; Jones, Morgan Thomas; Hammer, Øyvind; Hauksson, Bjarki; Haflidason, Haflidi; Midtkandal, Ivar; Planke, Sverre.
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard. Palaeogeography, Palaeoclimatology, Palaeoecology 2020 ;Volume 554. p. -
UiB UiO Untitled
 
2019
13 Ballo, Eirik Magnus Gottschalk; Augland, Lars Eivind; Hammer, Øyvind; Svensen, Henrik.
A new age model for the Ordovician (Sandbian) K-bentonites in Oslo, Norway. Palaeogeography, Palaeoclimatology, Palaeoecology 2019 ;Volume 520. p. 203-213
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14 Burchardt, Steffi; Mattsson, Tobias; Palma, J Octavio; Galland, Olivier; Almqvist, Bjarne; Mair, Karen; Jerram, Dougal Alexander; Hammer, Øyvind; Sun, Yang.
Progressive Growth of the Cerro Bayo Cryptodome, Chachahuen Volcano, Argentina?Implications for Viscous Magma Emplacement. Journal of Geophysical Research (JGR): Solid Earth 2019 ;Volume 124.(8) p. 7934-7961
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15 Delsett, Lene Liebe; Druckenmiller, Patrick Scott; Hammer, Øyvind; Hryniewicz, Krzysztof; Knutsen, Espen Madsen; Koevoets, Maayke Jacqueline; Nakrem, Hans Arne; Roberts, Aubrey Jane; Hurum, Jørn Harald.
Mesozoic marine reptiles from Spitsbergen and their ecosystems. Geology Today 2019 ;Volume 35.(1) p. 20-25
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16 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hammer, Øyvind; Hurum, Jørn Harald; Mørk, Atle.
"Palaeontology of the Middle Triassic dysoxic succession of the Botneheia Fm., Svalbard".. Wintermeeting 2019; 2019-01-07 - 2019-01-09
NTNU UiO UiT Untitled
 
17 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hammer, Øyvind; Hurum, Jørn Harald; Mørk, Atle.
The geobiosphere of the Middle Triassic of Svalbard- linking biofacies to geochemistry. DEEP General Assembly 2019; 2019-03-06 - 2019-03-07
NTNU UiO UiT Untitled
 
18 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hurum, Jørn Harald; Hammer, Øyvind; Mørk, Atle.
Anoxia and mass death – a high-resolution biofacies study of the Ladinian (Middle Triassic) Blanknuten Mb., Botneheia Fm. on Edgeøya. ARCEx Annual Conference 2019; 2019-10-22 - 2019-10-24
UiO NTNU UiT Untitled
 
19 Engelschiøn, Victoria Sjøholt; Bernhardsen, Sofie; Wesenlund, Fredrik; Hurum, Jørn Harald; Hammer, Øyvind; Roberts, Aubrey Jane; Delsett, Lene Liebe; Nakrem, Hans Arne; Mørk, Atle.
Mass death by anoxia - or an exceptional preservation interval? The Middle Triassic bivalve beds of Svalbard.. Palaeontological Association Annual Meeting 2019; 2019-12-18 - 2019-12-21
NTNU UiO UiT Untitled
 
20 Engelschiøn, Victoria Sjøholt; Hammer, Øyvind; Hurum, Jørn Harald; Wesenlund, Fredrik; Bernhardsen, Sofie; Mørk, Atle.
East-west trends in palaeoenvironment and oxygenation in the Middle Triassic Botneheia Fm., Svalbard. ARCEx Annual Conference 2019; 2019-10-22 - 2019-10-24
NTNU UiO UiT Untitled
 
21 Hammer, Øyvind; Alsen, Peter; Grundvåg, Sten-Andreas; Jelby, Mads E.; Nøhr-Hansen, Henrik; Olaussen, Snorre; Senger, Kim; Sliwinska, Kasia K.; Smelror, Morten.
Comment on ‘Redox conditions, productivity, and volcanic inputduring deposition of uppermost Jurassic and Lower Cretaceousorganic-rich siltstones in Spitsbergen, Norway’ by Rakocinski et al.(2018). Cretaceous research (Print) 2019 ;Volume 96. p. 241-243
NGU UiO UiT UNIS Untitled
 
22 Hammer, Øyvind; Jones, Morgan Thomas; Schneebeli-Hermann, Elke; Hansen, Bitten Bolvig; Bucher, Hugo.
Are Early Triassic extinction events associated with mercury anomalies? A reassessment of the Smithian/Spathian boundary extinction. Earth-Science Reviews 2019 ;Volume 195. p. 179-190
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23 Hurum, Jørn Harald; Nakrem, Hans Arne; Hammer, Øyvind; Delsett, Lene Liebe.
Gravplass i verdensformat. Geo 2019 ;Volume 22.(3) p. 12-18
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24 Jones, Morgan Thomas; Hammer, Øyvind; Bucher, Hugo; Schneebeli-Hermann, Elke; Mather, Tamsin; Svensen, Henrik; Planke, Sverre.
Are Mercury Anomalies a Reliable Proxy for LIP Volcanism? Examples from the End-Permian and Early Triassic. Goldschmidt Conference; 2019-08-18 - 2019-08-23
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25 Koevoets, Maayke Jacqueline; Hammer, Øyvind; Little, Crispin T.S..
Palaeoecology and palaeoenvironments of the Middle Jurassic to lowermost Cretaceous Agardhfjellet Formation (Bathonian–Ryazanian), Spitsbergen, Svalbard. Norwegian Journal of Geology 2019 ;Volume 99.(1) p. 17-40
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26 Markussen, Ørjan; Dypvik, Henning; Hammer, Erik; Long-Sanouiller, Haili; Hammer, Øyvind.
3D characterization of porosity and authigenic cementation in Triassic conglomerates/arenites in the Edvard Grieg Field using 3D micro-CT imaging. Marine and Petroleum Geology 2019 ;Volume 99. p. 265-281
NTNU UiO Untitled
 
27 Mattsson, Tobias; Burchardt, Steffi; Palma, Octavio; Galland, Olivier; Almqvist, Bjarne S.G.; Hammer, Øyvind; Mair, Karen; Sun, Yang; Jerram, Dougal Alexander.
Magmatic fabrics related to different growth stages of the Cerro Bayo Cryptodome. LASI VI; 2019-11-25 - 2019-11-29
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28 Sucheras-Marx, Baptiste; Escarguel, Gilles; Ferreira, J; Hammer, Øyvind.
Statistical confidence intervals for relative abundances and abundance-based ratios: Simple practical solutions for an old overlooked question. Marine Micropaleontology 2019 ;Volume 151.
UiO Untitled
 
2018
29 Gyøry, Emil; Hammer, Øyvind; Jorde, Knut; Nakrem, Hans Arne; Swajda, Michaël; Domeier, Mathew.
The origin of telemarkites from the mesoproterozoic of telemark, Norway. Norwegian Journal of Geology 2018 ;Volume 98.(1) p. 25-39
UiO Untitled
 
30 Hansen, Bitten Bolvig; Hammer, Øyvind; Nakrem, Hans Arne.
Stratigraphy and age of the Grippia niveau bonebed, Lower Triassic Vikinghøgda Formation, Spitsbergen. Norwegian Journal of Geology 2018 ;Volume 98.(2) p. 175-187
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31 Hurum, Jørn Harald; Engelschiøn, Victoria Sjøholt; Økland, Inghild Halvorsen; Bratvold, Janne; Ekeheien, Christina Pokrie; Roberts, Aubrey Jane; Delsett, Lene Liebe; Hansen, Bitten Bolvig; Mørk, Atle; Nakrem, Hans Arne; Druckenmiller, Patrick Scott; Hammer, Øyvind.
The history of exploration and stratigraphy of the Early to Middle Triassic vertebrate-bearing strata of Svalbard (Sassendalen Group, Spitsbergen). Norwegian Journal of Geology 2018 ;Volume 98.(2) p. 165-174
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32 Koevoets, Maayke Jacqueline; Hammer, Øyvind; Olaussen, Snorre; Senger, Kim; Smelror, Morten.
Integrating subsurface and outcrop data of the Middle Jurassic to Lower Cretaceous Agardhfjellet Formation in central Spitsbergen. Norwegian Journal of Geology 2018 ;Volume 98.(4) p. -
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33 Koevoets, Maayke Jacqueline; Hurum, Jørn Harald; Hammer, Øyvind.
New late jurassic teleost remains from the agardhfjellet formation, Spitsbergen, Svalbard. Norwegian Journal of Geology 2018 ;Volume 98.(2) p. 289-299
UiO UNIS Untitled
 
34 Olaussen, Snorre; Senger, Kim; Birchall, Thomas; Braathen, Alvar; Grundvåg, Sten-Andreas; Hammer, Øyvind; Koevoets, Maayke Jacqueline; Larsen, Leif; Mulrooney, Mark Joseph; Mørk, Mai Britt Engeness; Ogata, Kei; Ohm, Sverre Ekrene; Rismyhr, Bjarte.
The Longyearbyen CO2 lab project: lessons learned from a decade of characterizing an unconventional reservoir-caprock system. EAGE Fifth CO2 Geological Storage Workshop; 2018-11-21 - 2018-11-23
NTNU UiO UIS UiT UNIS Untitled
 
35 Stokke, Ella Wulfsberg; Jones, Morgan Thomas; Hammer, Øyvind; Svensen, Henrik.
Geochemical variations during the PETM and later Eocene hyperthermals: investigating a new drill core from Fur, Denmark. 33rd Nordic Geological Winter Meeting; 2018-01-10 - 2018-01-12
UiO Untitled
 
36 Stokke, Ella Wulfsberg; Jones, Morgan Thomas; Hammer, Øyvind; Svensen, Henrik.
Geochemistry of Paleocene- Eocene sediments on Fur, Denmark: Linking volcanism and climatic changes. 2nd Annual DEEP General Assembly; 2018-03-07 - 2018-03-09
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37 Stokke, Ella Wulfsberg; Whiteside, Jessica H.; Svensen, Henrik; Hammer, Øyvind; Jones, Morgan Thomas.
Linking warming, environmental changes, and volcanic ash falls from onset to recovery of the PETM: investigations from Fur, Denmark. European Geosciences Union General Assembly 2018; 2018-04-08 - 2018-04-13
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38 Tasianas, Alexandros; Bünz, Stefan; Bellwald, Benjamin; Hammer, Øyvind; Planke, Sverre; Lebedeva-Ivanova, Nina; Krassakis, Pavlos.
High-resolution 3D seismic study of pockmarks and shallow fluid flow systems at the Snøhvit hydrocarbon field in the SW Barents Sea. Marine Geology 2018 ;Volume 403. p. 247-261
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2017
39 Collignon, Marine; Hammer, Øyvind; Fallahi, Mohammad Javad; Lupi, Matteo; Schmid, Daniel Walter; Husein, Alwi; Hadi, Soffian; Mazzini, Adriano.
Linking the Lusi mud eruption dynamics with regional and global seismic activity: a statistical analysis. EGU General Assembly; 2017-03-23 - 2017-03-28
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40 Delsett, Lene Liebe; Koevoets, Maayke Jacqueline; Hammer, Øyvind; Novis, Linn Kristin; Roberts, Aubrey Jane; Druckenmiller, Patrick Scott; Hurum, Jørn Harald.
A model for marine reptile taphonomy in the Late Jurassic Slottsmøya Member Lagerstätte. Palaeontological Association Annual Meeting; 2017-12-17 - 2017-12-19
UiO UiT Untitled
 
41 Delsett, Lene Liebe; Koevoets, Maayke Jacqueline; Hammer, Øyvind; Novis, Linn Kristin; Roberts, Aubrey Jane; Druckenmiller, Patrick Scott; Hurum, Jørn Harald.
Marine reptiles from death to discovery. Sundvolden 2017: Celebrating science at natural history museums; 2017-11-13 - 2017-11-14
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42 Hammer, Øyvind; Svensen, Henrik.
Biostratigraphy and carbon and nitrogen geochemistry of the SPICE event in Cambrian low-grade metamorphic black shale, Southern Norway. Palaeogeography, Palaeoclimatology, Palaeoecology 2017 ;Volume 468. p. 216-227
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43 Hurum, Jørn Harald; Økland, Inghild Halvorsen; Ekeheien, Christina; Bratvold, Janne; Nash, Victoria Engelschiøn; Roberts, Aubrey Jane; Delsett, Lene Liebe; Hansen, Bitten Bolvig; Mørk, Atle; Druckenmiller, Patrick; Reisdorf, Achim; Wintrich, Tania; Nakrem, Hans Arne; Hammer, Øyvind.
Death and survival in the Early Triassic – Svalbard revisited. Norwegian Geological Society Winter Meeting 2017; 2017-01-09
NTNU UiO Untitled
 
44 Mazzini, Adriano; Svensen, Henrik; Forsberg, Carl Fredrik; Linge, Henriette; Lauritzen, Stein-Erik; Haflidason, Haflidi; Hammer, Øyvind; Planke, Sverre; Tjelta, Tor-Inge.
A Climatic Trigger for the Giant Troll Pockmark Field in the Northern North Sea. Geological Society of Norway - Winter Conference; 2017-01-09 - 2017-01-11
NGI UiB UiO Untitled
 
45 Mazzini, Adriano; Svensen, Henrik; Forsberg, Carl Fredrik; Linge, Henriette; Lauritzen, Stein-Erik; Haflidason, Haflidi; Hammer, Øyvind; Planke, Sverre; Tjelta, Tor-Inge.
A climatic trigger for the giant Troll pockmark field in the northern North Sea. Earth and Planetary Science Letters 2017 ;Volume 464. p. 24-34
NGI UiB UiO Untitled
 
46 Nakrem, Hans Arne; Hryniewicz, Krzysztof; Hammer, Øyvind; Little, Crispin T.S.; Kaim, Andrzej.
Fossil seep carbonates (Late Jurassic – Late Paleocene) of the greater Barents Shelf area.. Norwegian Geological Society Winter Meeting 2017; 2017-01-09 - 2017-01-11
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47 Neumann, Else Ragnhild; Svensen, Henrik; Polozov, Alexander; Hammer, Øyvind.
Formation of Si-Al-Mg-Ca-rich zoned magnetite in an end-Permian phreatomagmatic pipe in the Tunguska Basin, East Siberia. Mineralium Deposita 2017 ;Volume Published ahead of print. p. -
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48 Piazza, Veronica; Hammer, Øyvind; Jattiot, Romain.
New late Smithian (early triassic) ammonoids from the Lusitaniadalen member, Vikingh?gda formation, Svalbard. Norsk Geologisk Tidsskrift 2017 ;Volume 97.(2) p. 105-117
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2016
49 Hammer, Øyvind; Planke, Sverre; Hafeez, Amer; Hjelstuen, Berit Oline Blihovde; Faleide, Jan Inge; Kvalø, Frode.
Agderia – A postglacial lost land in the southern Norwegian North Sea. Norsk Geologisk Tidsskrift 2016 ;Volume 96.(1) p. 43-60
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50 Amberg, Chloe E.A.; Collart, Tim; Salenbien, Wout; Egger, Lisa M.; Munnecke, Axel; Nielsen, Arne T.; Monnet, Claude; Hammer, Øyvind; Vandenbroucke, Thijs R.A..
The nature of Ordovician limestone-marl alternations in the Oslo-Asker District (Norway): Witnesses of primary glacio-eustasy or diagenetic rhythms?. Scientific Reports 2016 ;Volume 6.
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