Browsing Department of Earth Science by Title

Dansgaard-Oeschger cycles: Interactions between ocean and sea ice intrinsic to the Nordic seas

Dokken, Trond Martin; Nisancioglu, Kerim Hestnes; Li, Camille; Battisti, David Stephen; Kissel, Catherine (Peer reviewed; Journal article, 2013-09)

Dansgaard-Oeschger (D-O) cycles are the most dramatic, frequent, and wide-reaching abrupt climate changes in the geologic record. On Greenland, D-O cycles are characterized by an abrupt warming of 10 ± 5°C from a cold ...

Deep Crustal Flow Within Postorogenic Metamorphic Core Complexes: Insights From the Southern Western Gneiss Region of Norway

Wiest, Johannes; Osmundsen, Per Terje; Jacobs, Joachim; Fossen, Haakon (Peer reviewed; Journal article, 2019)

Viscous crustal flow can exhume once deeply buried rocks in postorogenic metamorphic core complexes (MCCs). While migmatite domes record the flow dynamics of anatectic crust, the mechanics and kinematics of solid‐state ...

Deep sea sedimentary analogs for the Vostok ice core

Mortyn, P. Graham; Charles, Christopher D.; Ninnemann, Ulysses Silas; Ludwig, Kristen; Hodell, David A. (Peer reviewed; Journal article, 2003-08-07)

Many applications of the Vostok ice core depend critically on the ability to make stratigraphic ties to marine records in the adjacent Southern Ocean. Here we present oxygen isotopic records from high accumulation rate ...

Deep-ocean circulation in the North Atlantic during the Plio-Pleistocene intensification of Northern Hemisphere Glaciation (~2.65–2.4 Ma)

Jacob, Kim A.; Pross, Jörg; Link, Jasmin M.; Blaser, Patrick; Braaten, Anna Hauge; Friedrich, Oliver (Journal article; Peer reviewed, 2021)

Through transporting heat around the world and thereby regulating global climate, ocean circulation is an integral part of Earth's climate system that likely changed substantially on glacial-interglacial timescales in the ...

Deep-water depositional systems of the Norwegian Sea; understanding the system evolution, depositional geometries and reservoir quality from subsurface data and field outcrops

Lien, Trond (Doctoral thesis, 2006-10-20)

Deep-water sediment transport patterns and basin floortopography in early rift basins: Plio-Pleistocene syn-rift of theCorinth Rift, Greece

Muravchik, Martin; Henstra, Gijs Allard; Eliassen, Gauti; Gawthorpe, Rob; Leeder, MR; Kranis, H; Skourtsos, E; Andrews, J. (Peer reviewed; Journal article, 2019)

Our current understanding on sedimentary deep‐water environments is mainly built of information obtained from tectonic settings such as passive margins and foreland basins. More observations from extensional settings are ...

Deep-water sinuous channels: their development and architecture

Janocko, Michael (Doctoral thesis; Peer reviewed, 2011-12-02)

The study combines an interpretation of 3D seismic and well-core dataset with laboratory experiments, process-based 3D numerical simulations and analysis of outcrop analogues to explore the varied architecture and formative ...

The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database

Hollis, Christopher J.; Jones, Tom Dunkley; Anagnostou, Eleni; Bijl, Peter K.; Cramwinckel, Margot J.; Cui, Ying; Dickens, Gerald R.; Edgar, Kirsty M.; Eley, Yvette; Evans, David; Foster, Gavin L.; Frieling, Joost; Inglis, Gordon N.; Kennedy, Elizabeth M.; Kozdon, Reinhard; Lauretano, Vittoria; Lear, Caroline H.; Littler, Kate; Lourens, Lucas; Meckler, Anna Nele; Naafs, B. David A.; Pälike, Heiko; Pancost, Richard D.; Pearson, Paul N.; Röhl, Ursula; Royer, Dana L.; Salzmann, Ulrich; Schubert, Brian A.; Seebeck, Hannu; Sluijs, Appy; Speijer, Robert P.; Stassen, Peter; Tierney, Jessica; Tripati, Aradhna; Wade, Bridget; Westerhold, Thomas; Witkowski, Caitlyn; Zachos, James C.; Zhang, Yi Ge; Huber, Matthew; Lunt, Daniel J. (Peer reviewed; Journal article, 2019-07-25)

The early Eocene (56 to 48 million years ago) is inferred to have been the most recent time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Global mean temperatures were also substantially warmer than those ...

Deformation bands in chalk - control on distribution and mechanism of formation

Knutsen, Heidi Husebø (Master thesis, 2016-06-01)

Deformation bands are narrow tabular zones that accommodates strain through the reorganization of grains by shearing and/or volumetric deformation in porous and granular rocks. Deformation bands in porous sandstones are ...

Deformation bands in porous sandstones, their microstructure and petrophysical properties

Torabi, Anita (Doctoral thesis, 2008-02-27)

Deformation bands are commonly thin tabular zones of crushed or reorganized grains that form in highly porous rocks and sediments. Unlike a fault, typically the slip is negligible in deformation bands. In this dissertation ...

Deformation of sandstone reservoirs. Insight from experiments and field studies

Skurtveit, Elin (Doctoral thesis, 2014-09-18)

Deglaciation of Fennoscandia

Stroeven, Arjen P.; Hattestrand, Clas; Kleman, Johan; Heyman, Jakob; Fabel, Derek; Fredin, Ola; Goodfellow, Bradley W.; Harbor, Jonathan M.; Jansen, John D.; Olsen, Lars; Caffee, Marc; Fink, David; Lundqvist, Jan; Rosqvist, Gunhild C.; Strömberg, Bo; Jansson, Krister N. (Peer reviewed; Journal article, 2015-10-21)

To provide a new reconstruction of the deglaciation of the Fennoscandian Ice Sheet, in the form of calendar-year time-slices, which are particularly useful for ice sheet modelling, we have compiled and synthesized published ...

The deglaciation of Kongsfjorden, Svalbard —based on surface exposure dating of glacial erratics and Quaternary geological mapping of Blomstrandhalvøya

Grant, Oliver Rodney (Master thesis, 2016-05-27)

Surface exposure dating via 10Be cosmogenic nuclide dating is used, alongside Quaternary geological mapping of landforms and sediments, to reconstruct the course of deglaciation following the Late Weichselian Glacial Maximum ...

Deglaciation of the Norwegian fjords

Åkesson, Henning (Doctoral thesis, 2018-01-09)

Melting glaciers and ice sheets are perhaps the most visible signs of a warming cli- mate. Glaciers are retreating on every continent, ice sheets are shedding icebergs into a warming ocean at an accelerating rate, and the ...

Deglasiasjon og holocene havnivåendringer i Lofthus, Ullensvang kommune, basert på kvartærgeologisk kartlegging og eksponeringsdatering

Mortensbakke, Kjersti de Lange (Master thesis, 2018-10-24)

Observations from Quaternary geological mapping, LIDAR-data, aerial photo analysis and results from surface exposure dating via in situ ^10Be are used to reconstruct Holocene sea-level changes and the course of deglaciation ...