Over 400 previously undocumented Svalbard surge-type glaciers identified

Farnsworth, Wesley R.; Inǵólfsson, Ólafur; Retelle, Michael J.; Schomacker, Anders

doi:10.1016/j.geomorph.2016.03.025

Cited by 67 publications

(96 citation statements)

References 52 publications

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“…This corroborates the findings of previous studies, which showed (e.g. Ottesen & Dowdeswell, 2006;Ottesen et al, 2008) Pfirman, 1985;Solheim, 1991;Boulton et al, 1996;Christoffersen et al, 2005;670 Ottesen et al, 2008;Kristensen et al, 2009;Flink et al, 2015;Streuff et al, 671 2015), supporting the hypothesis that Esmarkbreen is indeed a surging glacier 672 (Farnsworth et al, 2016). The sub-bottom profiler data from the fjord shows occasional mass transport events reworking the accumulated deposits (Forwick 676 & Vorren, 2009.…”

supporting

confidence: 89%

“…the squeezing of soft sub-324 glacial sediments into basal glacier crevasses (see Evans & Orton, 2014;Streuff 325 et al, 2015). This is supported by the presence of terrestrial crevasse-squeeze 326 ridges in the forefield of Esmarkbreen (Farnsworth et al, 2016 appearance varies from internally massive and semi-transparent to acoustically stratified (Table 2, Fig. 5c).…”

mentioning

confidence: 78%

“…Oerlemans & Nick, 2006;Benn et al, 2007;Kehrl et al, 2011), or (ii) in the terrestrial forelands of both glaciers (Farnsworth et al, 2016), and the Borebukta and Yoldiabukta (Ottesen & Dowdeswell, 2006).…”

mentioning

confidence: 99%

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Submarine landform assemblages and sedimentary processes in front of Spitsbergen tidewater glaciers

Streuff

Cofaigh

Noormets³

et al. 2018

Marine Geology

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Citation for published item:treu'D uF nd ¡ y gofighD gF nd xoormetsD F nd vloydD tFwF @PHIVA 9umrine lndform ssemlges nd sedimentry proesses in front of pitsergen tidewter gliersF9D wrine geologyFD RHP F ppF PHWEPPUF Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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supporting

confidence: 89%

mentioning

confidence: 78%

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Submarine landform assemblages and sedimentary processes in front of Spitsbergen tidewater glaciers

Streuff

Cofaigh

Noormets³

et al. 2018

Marine Geology

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“…High-resolution aerial imagery of six selected sites where glacier deposits (marked by white dotted lines) have been remotely constrained to Lateglacial-early Holocene age. 5; site 15;Farnsworth et al 2017). Glacier deposits presented in (A) and (C) correspond to outlet glaciers from plateau icecaps and (B) and (E) from cirque glaciers, while (D) and (F) highlight glacier deposits from valley glaciers.…”

mentioning

confidence: 99%

Svalbard glaciers re‐advanced during the Pleistocene–Holocene transition

Farnsworth

Inǵólfsson

Retelle

et al. 2018

Boreas

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Despite warming regional conditions and our general understanding of the deglaciation, a variety of data suggest glaciers re-advanced on Svalbard during the Lateglacial-early Holocene (LGEH). We present the first well-dated end moraine formed during the LGEH in De Geerbukta, NE Spitsbergen. This landform was deposited by an outlet glacier re-advancing into a fjord extending 4.4 km beyond the late Holocene (LH) maximum. Comparing the timing of the De Geerbukta glacier re-advance to a synthesis of existing data including four palaeoclimate records and 15 other proposed glacier advances from Svalbard does not suggest any clear synchronicity in glacial and climatic events. Furthermore, we introduce six additional locations where glacier moraines have been wave-washed or cut by postglacial raised marine shorelines, suggesting the landforms were deposited before or during high relative sea-level stands, thus exhibiting a similar LGEH age. Contrary to current understanding, our new evidence suggests that the LGEH glaciers were more dynamic, exhibited re-advances and extended well beyond the extensively studied LH glacial expansion. Given the widespread occurrence of the LGEH glacier deposits on Svalbard, we suggest that the culmination of the Neoglacial advances during the Little Ice Age does not mark the maximum extent of most Svalbard glaciers since deglaciation; it is just the most studied and most visible in the geological record.

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“…Such changes could have led to surge-type behavior when the glaciers changed from an initial cold-based state to a temperate state, with increased sliding before returning to a cold state. However, we find no evidence for any surge-type behavior in the Vårfluesjøen catchment (i.e., looped moraines and/or crevassed moraines; Farnsworth et al, 2016). Thus, we regard the deposition of continuously laminated inorganic material in the lake to reflect the size of the glaciers in the catchment.…”

Section: Glacier Derived Sediments (Inorganic Detrital Deposits)mentioning

confidence: 55%

Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen

et al. 2018

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A process-based understanding of lacustrine deposited sediments in Arctic lakes is essential to set the present warming and hydroclimatic shift into perspective. From such a perspective, we can enhance our understanding of the natural climate variability in the Arctic. Here, we present work from the northern coast of Spitsbergen in which we unravel the sediment sequence from a distal glacier-fed lake, Vårfluesjøen. Utilizing recent methodological and technological developments, we base our interpretation on new tools that better visualize and characterize the sediments cores. High-resolution X-ray Computed Tomography (X-ray CT) is used to visualize the lake sediments and quantify the sand-sized particles found in the 210 Pb-and radiocarbon-dated sediments, together with a multi-proxy approach including measurement of their physical, geochemical, and magnetic properties. Our findings suggest that Vårfluesjøen (6 m a.s

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Over 400 previously undocumented Svalbard surge-type glaciers identified

Cited by 67 publications

References 52 publications

Submarine landform assemblages and sedimentary processes in front of Spitsbergen tidewater glaciers

Submarine landform assemblages and sedimentary processes in front of Spitsbergen tidewater glaciers

Svalbard glaciers re‐advanced during the Pleistocene–Holocene transition

Reconstructing Holocene Glacier and Climate Fluctuations From Lake Sediments in Vårfluesjøen, Northern Spitsbergen

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