Palaeoclimatic changes in Kveithola, Svalbard, during the Late Pleistocene deglaciation and Holocene: Evidences from microfossil and sedimentary records

Carbonara, Katia; Mezgec, Karin; Varagona, Gabriella; Musco, Maria Elena; Lucchi, Renata Giulia; Villa, Giuliana; Morigi, Caterina; Melis, Romana; Caffau, Mauro

doi:10.1016/j.palaeo.2016.10.003

Cited by 18 publications

(21 citation statements)

References 77 publications

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“…Bauch et al, 2001;Carbonara et al, 2016;Groot et al, 2014;Müller and Stein, 2014;Rigual-Hernández et al, 2017;Risebrobakken et al, 2011;Telesiński et al, 2015;Werner et al, 2013Werner et al, , 2016, coinciding with a general warming trend in the entire Svalbard region -especially after the PBO (e.g. Hald et al, 2004;Rasmussen et al, 2012;Sarnthein et al, 2003;Skirbekk et al, 2010;Ślubowska et al, 2005; this study, see Fig.…”

Section: The Role Of Atlantic Water In the Deglaciation History Of Thsupporting

confidence: 60%

“…Lacustrine records from NW Spitsbergen indicate maximum temperatures based on alkenones until ∼ 10.5 ka (van der Bilt et al, 2016). Carbonara et al (2016) and RigualHernández et al (2017), report about maximum concentrations of diatoms and coccoliths (mainly warm water species) and inferred a causally strengthened advection of AW during the HTM south of Spitsbergen. Thus, a significant warming in the Svalbard area occurred during this time interval, with temperatures exceeding modern temperatures (compare alkenone-based SST data in Fig.…”

Section: Early Holocene (∼ 117-78 Ka) -Amelioration Of Environmentamentioning

confidence: 98%

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Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation

et al. 2017

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Abstract. Atlantic Water (AW) advection plays an important role in climatic, oceanographic and environmental conditions in the eastern Arctic. Situated along the only deep connection between the Atlantic and the Arctic oceans, the Svalbard Archipelago is an ideal location to reconstruct the past AW advection history and document its linkage with local glacier dynamics, as illustrated in the present study of a 275 cm long sedimentary record from Woodfjorden (northern Spitsbergen; water depth: 171 m) spanning the last ∼ 15 500 years.

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Section: The Role Of Atlantic Water In the Deglaciation History Of Thsupporting

confidence: 60%

Section: Early Holocene (∼ 117-78 Ka) -Amelioration Of Environmentamentioning

confidence: 98%

Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation

et al. 2017

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“…In particular, we considered the content of Calcium (Ca), Iron (Fe), Zircon (Zr), Rubidium (Rb), Bromium (Br), and Clorine (Cl), using the Ca/Fe ration as a proxy for biogenic vs. terrigenous (e.g. Lucchi et al, 2013;Carbonara et al, 2016); the Zr/Rb ratio was used as proxy for coarse sediment distribution (e.g. Wang et al, 2011), as Zr is usually associated with sandy material whereas Rb is enriched in sediment containing clay minerals; and the Br/Cl ratio was used as proxy for organic matter content as the Br is often associated with the organic carbon (e.g.…”

Section: Methodsmentioning

confidence: 99%

“…C dating AMS 14 C dating on the Kveithola TMF (Core 17603-3) were performed in correspondence of characteristic peaks of the magnetic susceptibility recognizable in most of the cores studied in the southern and western margin of Svalbard (Jessen et al, 2010;Lucchi et al, 2013;Carbonara et al, 2016). The calibrated ages indicate that Core 17603-3 contains the post LGM depositional sequence starting from about 15 cal ka BP (Table 3).…”

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confidence: 99%

Paleomagnetism and rock magnetism from sediments along a continental shelf-to-slope transect in the NW Barents Sea: Implications for geomagnetic and depositional changes during the past 15 thousand years

Caricchi

Lucchi

Sagnotti

et al. 2018

Global and Planetary Change

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A B S T R A C TPaleomagnetic and rock magnetic data were measured on glaciomarine silty-clay successions along an E-W sediment-core transect across the continental shelf and slope of the Kveithola paleo-ice stream system (south of Svalbard, north-western Barents Sea), representing a stratigraphic interval spanning the last deglaciation and the Holocene.The records indicate that magnetite is the main magnetic mineral and that magnetic minerals are distinctly less abundant on the shelf than at the continental slope. The paleomagnetic properties allow for the reconstruction of a well-defined characteristic remanent magnetization (ChRM) throughout the sedimentary successions. The stratigraphic trends of rock magnetic and paleomagnetic parameters are used for a shelf-slope core correlation and sediment facies analysis is applied for depositional processes reconstruction. The new paleomagnetic records compare to the PSV and RPI variation predicted for the core sites by a simulation using the global geomagnetic field variation models SHA.DIF.14k and CALS7K.2 and closest PSV and RPI regional stack curves. The elaborated dataset, corroborated by available 14 C ages, provides a fundamental chronological framework to constrain the coupling of shelf-slope sedimentary processes and environmental changes in the NW Barents Sea region during and after deglaciation.

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“…In addition, although studies of deglacial sediments using micropaleontological proxies are common throughout the Arctic and subarctic regions, most studied cores are from water depths deeper than 200 m (Ishman et al, 1996;Scott et al, 2009;Taldenkova et al, 2013;Carbonara et al, 2016;Hald, 1999;Osterman et al, 2002;Jennings et al, 2014;Wollenburg et al, 2007;Knudsen et al, 2004). The proxies provide excellent paleoceanographic records of water mass history but not direct evidence for the elevation and location of paleoshorelines.…”

Section: Introductionmentioning

confidence: 99%

Deglacial sea level history of the East Siberian Sea and Chukchi Sea margins

et al. 2017

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Abstract. ka) sea level history on the East Siberian continental shelf and upper continental slope was reconstructed using new geophysical records and sediment cores taken during Leg 2 of the 2014 SWERUS-C3 expedition. The focus of this study is two cores from Herald Canyon, piston core SWERUS-L2-4-PC1 (4-PC1) and multicore SWERUS-L2-4-MC1 (4-MC1), and a gravity core from an East Siberian Sea transect, SWERUS-L2-20-GC1 (20-GC1). Cores 4-PC1 and 20-GC were taken at 120 and 115 m of modern water depth, respectively, only a few meters above the global last glacial maximum (LGM; ∼ 24 kiloannum or ka) minimum sea level of ∼ 125-130 meters below sea level (m b.s.l.). Using calibrated radiocarbon ages mainly on molluscs for chronology and the ecology of benthic foraminifera and ostracode species to estimate paleodepths, the data reveal a dominance of river-proximal species during the early part of the Younger Dryas event (YD, Greenland Stadial GS-1) followed by a rise in river-intermediate species in the late Younger Dryas or the early Holocene (Preboreal) period. A rapid relative sea level rise beginning at roughly 11.4 to 10.8 ka (∼ 400 cm of core depth) is indicated by a sharp faunal change and unconformity or condensed zone of sedimentation. Regional sea level at this time was about 108 m b.s.l. at the 4-PC1 site and 102 m b.s.l. at 20-GC1. Regional sea level near the end of the YD was up to 42-47 m lower than predicted by geophysical models corrected for glacio-isostatic adjustment. This discrepancy could be explained by delayed isostatic adjustment caused by a greater volume and/or geographical extent of glacial-age land ice and/or ice shelves in the western Arctic Ocean and adjacent Siberian land areas.

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Palaeoclimatic changes in Kveithola, Svalbard, during the Late Pleistocene deglaciation and Holocene: Evidences from microfossil and sedimentary records

Cited by 18 publications

References 77 publications

Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation

Atlantic Water advection vs. glacier dynamics in northern Spitsbergen since early deglaciation

Paleomagnetism and rock magnetism from sediments along a continental shelf-to-slope transect in the NW Barents Sea: Implications for geomagnetic and depositional changes during the past 15 thousand years

Deglacial sea level history of the East Siberian Sea and Chukchi Sea margins

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