Antarktis-bibliografi er en database over den norske Antarktis-litteraturen.

Hensikten med bibliografien er å synliggjøre norsk antarktisforskning og annen virksomhet/historie i det ekstreme sør. Bibliografien er ikke komplett, spesielt ikke for nyere forskning, men den blir oppdatert.

Norsk er her definert som minst én norsk forfatter, publikasjonssted Norge eller publikasjon som har utspring i norsk forskningsprosjekt.

Antarktis er her definert som alt sør for 60 grader. I tillegg har vi tatt med Bouvetøya.

Det er ingen avgrensing på språk (men det meste av innholdet er på norsk eller engelsk). Eldre norske antarktispublikasjoner (den eldste er fra 1894) er dominert av kvalfangst og ekspedisjoner. I nyere tid er det den internasjonale polarforskninga som dominerer. Bibliografien er tverrfaglig; den dekker både naturvitenskapene, politikk, historie osv. Skjønnlitteratur er også inkludert, men ikke avisartikler eller upublisert materiale.

Til høyre finner du en «HELP-knapp» for informasjon om søkemulighetene i databasen. Mange referanser har lett synlige lenker til fulltekstversjon av det aktuelle dokumentet. For de fleste tidsskriftartiklene er det også lagt inn sammendrag.

Bibliografien er produsert ved Norsk Polarinstitutts bibliotek.

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In authors or contributors

"Kristoffersen, Yngve"

Topic

seismologi

Results 15 resources

Abstracts

Kuvaas, B., & Kristoffersen, Y. (1991). The Crary Fan: A trough-mouth fan on the Weddell Sea continental margin, Antarctica. Marine Geology, 97(3), 345–362. https://doi.org/https://doi.org/10.1016/0025-3227(91)90125-N

Multichannel seismic investigations show the presence of a large trough-mouth fan deposit on the continental margin in the southern Weddell Sea. A characteristic feature of the fan is relatively few, but large canyons and/or channels which appear to have been stable for long periods. Levees associated with the channels may reach thicknesses of more than 1 km. Drilling during ODP Leg 113 recorded the presence of glaciers in East Antarctica since early Oligocene time, and the seismic stratigraphic evidence suggests that the submarine fan is largely composed of glacigenic sediments. The channel-levee systems and complexes indicate several growth phases, apparently controlled by glacial/interglacial climate fluctuations, with maximum fan growth during glacial periods. The present interglacial period is characterized by strong and erosive flow of Ice Shelf Water running down the western slope of the fan and carrying only minor amounts of suspended matter. The fan is essentially sediment starved during interglacial periods. The dimensions of the channel-levee complexes and the persistent loci of sediment supply suggest that turbidite sedimentation resulted from melting of wet-based glaciers at or near the shelf edge, which has consequently prograded 70-80 km seaward.

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Kristoffersen, Y., & Bungum, H. (1982). A microearthquake survey of Bouvet Island, South Atlantic. Tectonophysics, 81(1), T1–T5. https://doi.org/https://doi.org/10.1016/0040-1951(82)90111-1

A microearthquake survey carried out during the 1978–1979 Norwegian Antarctic Research Expedition indicates that only minor seismic activity is associated with the Bouvet volcano.

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Kristoffersen, Y., & Aalerud, J. (1988). Aeromagnetic reconnaissance over the Riiser-Larsen Ice Shelf, east Antarctica. Polar Research, 6(1), 123–128. https://doi.org/10.3402/polar.v6i1.6852

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Haugland, K., Kristoffersen, Y., & Velde, A. (1985). Seismic investigations in the Weddell Sea Embayment. Tectonophysics, 114(1), 293–313. https://doi.org/https://doi.org/10.1016/0040-1951(85)90018-6

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Bungum, H., Kristoffersen, Y., & Nilsen, A. K. (1981). The seismicity of the Bouvetøya region. In Bouvetøya, South Atlantic Ocean : results from the Norwegian Antarctic Research Expeditions 1976/77 and 1978/79 (Vol. 175, pp. 71–78). Norsk Polarinstitutt. https://brage.npolar.no/npolar-xmlui/handle/11250/173650

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Rogenhagen, J., Jokat, W., Hinz, K., & Kristoffersen, Y. (2004). Improved Seismic Stratigraphy of the Mesozoic Weddell Sea. Marine Geophysical Researches, 25(3), 265–282. https://doi.org/10.1007/s11001-005-1335-y

We present a compilation of more than 45,000 km of multichannel seismic data acquired in the last three decades in the Weddell Sea. In accordance with recent tectonic models and available drillhole information, a consistent stratigraphic model for depositional units W1–W5 is set up. In conjunction with existing aeromagnetic data, a chronostratigraphic timetable is compiled and units W1.5, W2 and W3 are tentatively dated to have ages of between 136 Ma and 114 Ma. The age of W3 is not well constrained, but might be younger than 114 Ma. The data indicate that the thickest sediments are present in the western and southern Weddell Sea. These areas formed the earliest basins in the Weddell Sea and so the distribution of Mesozoic sediments is in accordance with the tectonic development of the ocean basin. In terms of Cenozoic glacial sediments, the largest depocenters are situated in front of the Filchner–Ronne Shelf, i.e. at the Crary Fan, with a thickness of up to 3 km.

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Kuvaas, B., Kristoffersen, Y., Leitchenkov, G., Guseva, J., & Gandjukhin, V. (2004). Seismic expression of glaciomarine deposits in the eastern Riiser Larsen Sea, Antarctica. Marine Geology, 207(1), 1–15. https://doi.org/https://doi.org/10.1016/j.margeo.2004.04.004

By studying multichannel seismic data across the continental slope and rise of the eastern Riiser Larsen Sea and through a comparison with other East Antarctic continental margins, the base of the glaciomarine deposits has been traced in this area. The seismic data reveal the presence of large channel-levee complexes as well as multiple types of contourite accumulations. Downslope and alonglope processes thus interacted in forming the glaciomarine deposits. The deposits are attributed to the advances of ice sheet, delivering huge amounts of sediment to the shelf edge and upper slope during glacial maxima. Oversteepening and instability generated down-slope turbidity currents forming channel–levee complexes whereas the contourite accumulations were probably mostly formed during interglacials. The spatial distribution of the current controlled deposits indicates that bottom currents flow along the western slope of the Gunnerus Ridge.

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Solli, K., Kuvaas, B., Kristoffersen, Y., Leitchenkov, G., Guseva, J., & Gandjukhin, V. (2007). Seismic morphology and distribution of inferred glaciomarine deposits along the East Antarctic continental margin, 20°E–60°E. Marine Geology, 237(3), 207–223. https://doi.org/https://doi.org/10.1016/j.margeo.2006.12.002

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Solli, K., Kuvaas, B., Kristoffersen, Y., Leitchenkov, G., Guseva, J., & Gandjukhin, V. (2007). A seismo-stratigraphic analysis of glaciomarine deposits in the eastern Riiser-Larsen Sea (Antarctica). Marine Geophysical Researches, 28(1), 43–57. https://doi.org/10.1007/s11001-007-9013-x

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Kristoffersen, Y., & Hinz, K. (1991). Crustal development: Weddel Sea - Ross Sea region. Evolution of the Gondwana plate boundary in the Weddel Sea area. In M. R. A. Thomson, J. A. Crame, & J. W. Thomson (Eds.), Geological evolution of Antarctica : proceedings of the Fifth International Symposium on Antarctic Earth Sciences, held at Robinson College, Cambridge, 23-28 August 1987 (pp. 225–230). Cambridge University Press.
Koç, N., Kuvaas, B., Kristoffersen, Y., Hansen, E., & Persson, A. (1997). Timing of glacial events in Antarctica - diamond drilling into the glaciomarine sequence of the Weddell Sea continental shelf. In J.-G. (ed. ) Winther (Ed.), Report of the Norwegian Antarctic Research Expedition 1996/97 (Vol. 148, pp. 58–66). Norsk Polarinstitutt. https://brage.npolar.no/npolar-xmlui/handle/11250/173024

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Kristoffersen, Y., Hofstede, C., Diez, A., Blenkner, R., Lambrecht, A., Mayer, C., & Eisen, O. (2014). Reassembling Gondwana: A new high quality constraint from vibroseis exploration of the sub-ice shelf geology of the East Antarctic continental margin. Journal of Geophysical Research: Solid Earth, 119(12), 9171–9182. https://doi.org/https://doi.org/10.1002/2014JB011479

The breakup of Gondwana is manifested by coeval early Jurassic Karoo magmatism in South Africa and East Antarctica. In South Africa, the large volumes of volcanic rocks of the adjoining Lebombo and Mwenetzi-Save monoclines represent a volcanic rift margin, and in East Antarctica, a corresponding feature, the Explora Wedge is buried below sediments and floating ice shelves on the continental margin of Dronning Maud Land. We use the seismic vibrator source to explore the sub-ice geology in Antarctica, and the new seismic reflection and available regional aeromagnetic data enable us to outline a dogleg landward extent of the Explora Wedge in Dronning Maud Land. The congruent inboard wedge geometries on the two continents define a high quality constraint, which facilitate for the first time, a geologically consistent and tight reconstruction of Africa relative to East Antarctica within Gondwana. The uncertainties in correlations of major geological features (mobile belts) from one continent to the other may now be of the order of ten's of kilometers rather than hundreds of kilometers.

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Eisen, O., Hofstede, C., Miller, H., Kristoffersen, Y., Blenkner, R., Lambrecht, A., & Mayer, C. (2010). A New Approach for Exploring Ice Sheets and Sub-Ice Geology. Eos Transactions American Geophysical Union, 91(46), 429–430. https://doi.org/10.1029/2010EO460001
Leitchenkov, G., Guseva, J., Gandyukhin, V., Grikurov, G., Kristoffersen, Y., Sand, M., Golynsky, A., & Aleshkova, N. (2008). Crustal structure and tectonic provinces of the Riiser-Larsen Sea area (East Antarctica): results of geophysical studies. Marine Geophysical Researches, 29(2), 135–158. https://doi.org/10.1007/s11001-008-9051-z

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Eisen, O., Hofstede, C., Diez, A., Kristoffersen, Y., Lambrecht, A., Mayer, C., Blenkner, R., & Hilmarsson, S. (2015). On-ice vibroseis and snowstreamer systems for geoscientific research. Recent Advance in Polar Seismology: Global Impact of the International Polar Year, 9(1), 51–65. https://doi.org/10.1016/j.polar.2014.10.003

We present implementations of vibroseis system configurations with a snowstreamer for over-ice long-distance seismic traverses (>100 km). The configurations have been evaluated in Antarctica on ice sheet and ice shelf areas in the period 2010–2014. We discuss results of two different vibroseis sources: Failing Y-1100 on skis with a peak force of 120 kN in the frequency range 10–110 Hz; IVI EnviroVibe with a nominal peak force of 66 kN in the nominal frequency range 10–300 Hz. All measurements used a well-established 60 channel 1.5 km snowstreamer for the recording. Employed forces during sweeps were limited to less than 80% of the peak force. Maximum sweep frequencies, with a typical duration of 10 s, were 100 and 250 Hz for the Failing and EnviroVibe, respectively. Three different concepts for source movement were employed: the Failing vibrator was mounted with wheels on skis and pulled by a Pistenbully snow tractor. The EnviroVibe was operated self-propelled on Mattracks on the Antarctic plateau. This lead to difficulties in soft snow. For later implementations the EnviroVibe with tracks was put on a polyethylene (PE) sled. The sled had a hole in the center to lower the vibrator baseplate directly onto the snow surface. With the latter setup, data production varied between 20 km/day for 6-fold and 40 km/day for single fold for 9 h/day of measurements. The combination of tracks with the PE-sled was especially advantageous on hard and rough surfaces because of the flexibility of each component and the relatively lose mounting. The systems presented here are suitable to obtain data of subglacial and sub-seabed sediment layers and englacial layering in comparable quality as obtained from marine geophysics and land-based explosive surveys. The large offset aperture of the streamer overcomes limitations of radar systems for imaging of steep along-track subglacial topography. With joint international scientific and logistic efforts, large-scale mapping of Antarctica's and Greenland's subglacial geology, ice-shelf cavity geometries and sea-bed strata, as well as englacial structures can be achieved.

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Last update from database: 4/1/25, 2:10 AM (UTC)