Late Quaternary foraminiferal stratigraphy from western Svalbard

Lycke, Anne Katrine; Mangerud, Jan; Sejrup, Hans Petter

doi:10.1111/j.1502-3885.1992.tb00032.x

Cited by 21 publications

(20 citation statements)

References 35 publications

(28 reference statements)

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“…The foraminifera1 stratigraphy (Fig. 6) through the sequence has been presented in detail by Lycke et al (1992). In the present paper we use these results in our interpretation of the geological history.…”

Section: Methodsmentioning

confidence: 89%

Weichselian stratigraphy and palaeoenvironments at Bellsund, western Svalbard

Landvik

Bolstad

Lycke

et al. 1992

Boreas

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A coastal cliff facing the ocean at the west coast of Spitsbergen has been studied, and seven formations of Weichselian and Holocene age have been identified. A reconstruction of the palaeoenvironment and glacial history shows that most of the sediments cover isotope stage 5. From the base of the section, the formation 1 and 2 tills show a regional glaciation that reached the continental shelf shortly after the Eemian. Formation 3 consists of glacimarine to marine sediments dated to 105,000–90,000 BP. Amino acid diagenesis indicates that they were deposited during a c. 10,000‐year period of continuous isostatic depression, which indicates contemporaneous glacial loading in the Barents Sea. Foraminifera and molluscs show influx of Atlantic water masses along the west coast of Svalbard at the same time. Local glaciers advanced during the latter part of this period, probably due to the penetration of moist air masses, and deposited formation 4. A widespread weathering horizon shows that the glacial retreat was succeeded by subaerial conditions during the Middle Weichselian. Formation 5 is a till deposited during the Late Weichselian glacial maximum in this area. The glaciation was dominated by ice streams from a dome over southern Spitsbergen, and the last deglaciation of the outer coast is dated to 13,000 BP. A correlation of the events with other areas on Svalbard is discussed, and at least two periods of glaciation in the Barents Sea during the Weichselian are suggested.

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Section: Methodsmentioning

confidence: 89%

Weichselian stratigraphy and palaeoenvironments at Bellsund, western Svalbard

Landvik

Bolstad

Lycke

et al. 1992

Boreas

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“…1; Table 3). There is also a high degree of similarity to the Late Weichselian and early Holocene assemblages in zone FS‐IV from Skilvika in Bellsund (Lycke et al. 1992), whereas the underlying zone FS‐III from Skilvika represents a glacier‐proximal assemblage with total dominance by Elphidium excavatum f. clavata .…”

Section: Correlation and Discussionmentioning

confidence: 98%

“…Assemblage zones A1 and A2 correspond in time to zones FS‐I and FS‐II at Skilvika, at the mouth of Bellsund (Lycke et al. 1992) (Fig.…”

Section: Correlation and Discussionmentioning

confidence: 99%

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Late Quaternary foraminiferal record in Murchisonfjorden, Nordaustlandet, Svalbard

Kubischta¹,

Knudsen²,

Kaakinen³

et al. 2010

Polar Research

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Benthic foraminiferal assemblages from Nordaustlandet, Svalbard, are described for the first time with the objective of reconstructing the palaeoenvironmental conditions in the area during the late Quaternary. Investigations were carried out on marine deposits exposed along the southern shores of Murchisonfjorden. Five foraminiferal assemblages (A1-A5), representing different palaeoenvironmental conditions, were identified from the marine intervals, i.e., the Cassidulina reniforme-Elphidium albiumbilicatum assemblage (A1) from the Early Weichselian, the Islandiella helenae-Cibicides lobatulus assemblage (A2) from the Early Weichselian, the Cibicides lobatulus-Cassidulina reniforme assemblage (A3) from marine isotope stage 3, the Elphidium albiumbilicatum assemblage (A4) from the early Holocene and the Astrononion gallowayi assemblage (A5) from the mid-Holocene. Assemblages A1-A5 are compared with modern and fossil Quaternary assemblages from Arctic regions. Particularly notable is the fact that a well-defined Middle Weichselian assemblage in Svalbard is described for the first time, i.e., the Cibicides lobatulus-Cassidulina reniforme assemblage. All the assemblages from Nordaustlandet represent glacier-distal, inner-shelf environments with an open connection to the ocean. The results reveal the occurrence of three marine intervals (ice-free periods) in the north-western part of Nordaustlandet during the Weichselian, as well as ice-free conditions during most of the Holocene. A comparison of the assemblages from Nordaustlandet with previously published foraminiferal zones from onshore sections elsewhere in Svalbard show some degree of similarity, but also show considerable variation in species compositions, presumably caused by local environmental differences.

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“…Elverhni et nl. 1980;Lycke et al 1992;Hald & Korsun 1997). Elp/iidiuni excucutuni f. c1ui:utu is common, but generally in lower abundance than Cussidulin(i rcvifOrnic).…”

Section: Uiiit Dmentioning

confidence: 99%

Deglaciation chronology and marine environments in southwestern Sweden

Wastegård¹

1998

Boreas

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Four sites in northwestern Dalsland and southwestern VHrmland, southwestern Sweden were investigated. including studies of marine biostratigraphy and AMS datings. A marine foraminifera and mollusc fauna existed in the area between c. 10 400 and 9700 14C years BP. Arctic assemblages dominate the lowermost layers, deposited immediately after the deglaciation. A transition to more diverse faunas affected by a higher meltwater influence and decreasing water depths is recorded higher up in the succession. Northwestern Dalsland was dcglaciated between c. 10 400 and 10 200 BP, and southwestern Viirmland between c. 10 100 and 9800 BP. A stagnation in the retreat of the ice margin is suggested at 10 300 to 10 200 BP. The subsequent rapid ice recession was probably an effect of warmer conditions at the Pleistocene‐Holocene climatic transition. A similar shift in the early Preboreal (c. 9900 BP) probably represents the dcglaciation which followed after the stagnation at the Ski moraines. Renewed glacial activity is indicated at c. 9700 BP.

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Late Quaternary foraminiferal stratigraphy from western Svalbard

Cited by 21 publications

References 35 publications

Weichselian stratigraphy and palaeoenvironments at Bellsund, western Svalbard

Weichselian stratigraphy and palaeoenvironments at Bellsund, western Svalbard

Late Quaternary foraminiferal record in Murchisonfjorden, Nordaustlandet, Svalbard

Deglaciation chronology and marine environments in southwestern Sweden

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