Plio-Pleistocene sedimentary record from the Northwind Ridge: new insights into paleoclimatic evolution of the western Arctic Ocean for the last 5 Ma

Dipre, G.; Polyak, Leonid; Кузнецов, А. Б.; Oti, E.; Ortiz, Joseph D.; Brachfeld, Stefanie Ann; Xuan, Chuang; Lazar, Kelly Best; Cook, A.

doi:10.1007/s41063-018-0054-y

Cited by 25 publications

(36 citation statements)

References 94 publications

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“…In general, the low abundance of Acetabulastoma during MIS 11 is indicative of a seasonally ice‐free Arctic, including the Alpha Ridge region in the central Arctic. In addition, the MBE ~450–350 ka was not only a key transition in benthic faunas but also in the occurrence of Acetabulastoma and, by inference, extended periods of perennial sea ice that was mostly absent prior to and during MIS 11 (Dipre et al, ; Polyak et al, ). The pattern of absence of summer sea ice during MIS 11 is in stark contrast to the common perennial sea ice at least during parts of younger interglacials (MIS 1, 3, 5, 7, and 9), which typically have high abundance of Acetabulastoma .…”

Section: Resultsmentioning

confidence: 99%

“…Biostratigraphic summaries of Arctic sediments using calcareous nannofossils, planktic and benthic foraminifera, and ostracodes which can be found in Backman et al (), Stein et al (), Polyak et al (), Cronin et al (), and references therein. Additional age data come from amino acid racemization (Kaufman et al, ), strontium dating (Dipre et al, ) and Optically Stimulated Luminescence (Jakobsson et al, ). Magnetostratigraphy has also been attempted in Arctic sediments (reviewed in Xuan & Channell, ), but complications from self‐reversals and anomalous excursions preclude its use as a chronological tool (Channell & Xuan, ).…”

Section: Methodsmentioning

confidence: 99%

“…All measurements are reported in delta notation relative to Vienna Pee Dee Belemnite (VPDB) corrected to the NBS19 standard, with an average analytical precision (1σ) of ±0.05 (measurements from LDEO and Woods Hole Oceanographic Institution) and (2σ) of ±0.08 (measurements from Rensselaer Polytechnic Institute) on δ 18 O b . Sources, 1 Cronin et al, 2013, 2 Marzen et al, 2016, 3 This paper, 4 Cronin et al, 2017, 5 DeNinno et al, 2015, 6 Polyak et al, 2013, Dipre et al, 2018, 7 Hanslik et al, 2013 *Box and trigger cores used for last 40 ka, no orbital-scale sediment **See Supplemental Figure S1 for details of age model for each core.…”

Section: Benthic Foraminiferal δ 18 Omentioning

confidence: 99%

“…Sources, 1 Cronin et al, , , 2 Marzen et al, , 3 This paper, 4 Cronin et al, , 5 DeNinno et al, , 6 Polyak et al, , Dipre et al, , 7 Hanslik et al, …”

Section: Introductionunclassified

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Interglacial Paleoclimate in the Arctic

Cronin

Keller

Farmer

et al. 2019

Paleoceanog and Paleoclimatol

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Marine Isotope Stage 11 from~424 to 374 ka experienced peak interglacial warmth and highest global sea level~410-400 ka. MIS 11 has received extensive study on the causes of its long duration and warmer than Holocene climate, which is anomalous in the last half million years. However, a major geographic gap in MIS 11 proxy records exists in the Arctic Ocean where fragmentary evidence exists for a seasonally sea ice-free summers and high sea-surface temperatures (SST;~8-10°C near the Mendeleev Ridge). We investigated MIS 11 in the western and central Arctic Ocean using 12 piston cores and several shorter cores using proxies for surface productivity (microfossil density), bottom water temperature (magnesium/calcium ratios), the proportion of Arctic Ocean Deep Water versus Arctic Intermediate Water (key ostracode species), sea ice (epipelagic sea ice dwelling ostracode abundance), and SST (planktic foraminifers). We produced a new benthic foraminiferal δ 18 O curve, which signifies changes in global ice volume, Arctic Ocean bottom temperature, and perhaps local oceanographic changes. Results indicate that peak warmth occurred in the Amerasian Basin during the middle of MIS 11 roughly from 410 to 400 ka. SST were as high as 8-10°C for peak interglacial warmth, and sea ice was absent in summers. Evidence also exists for abrupt suborbital events punctuating the MIS 12-MIS 11-MIS 10 interval. These fluctuations in productivity, bottom water temperature, and deep and intermediate water masses (Arctic Ocean Deep Water and Arctic Intermediate Water) may represent Heinrich-like events possibly involving extensive ice shelves extending off Laurentide and Fennoscandian Ice Sheets bordering the Arctic. Key Points:• The Arctic Ocean experienced warm sea-surface temperatures and seasonally sea ice-free conditions during interglacial Marine Isotope Stage 11 • Peak warmth and minimal sea ice occurred during the middle to late part of the interglacial followed by increased land ice and ice shelves • Heinrich-like events occurred in the Arctic during the MIS 12-MIS 11 transition (Termination V) and during the MIS 11-MIS 10 transition Supporting Information:• Supporting Information S1• Data Set S1

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Benthic Foraminiferal δ 18 Omentioning

confidence: 99%

“…Sources, 1 Cronin et al, , , 2 Marzen et al, , 3 This paper, 4 Cronin et al, , 5 DeNinno et al, , 6 Polyak et al, , Dipre et al, , 7 Hanslik et al, …”

Section: Introductionunclassified

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Interglacial Paleoclimate in the Arctic

Cronin

Keller

Farmer

et al. 2019

Paleoceanog and Paleoclimatol

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“…Since that time probably also an increased input of meltwaters from ice sheets and low‐salinity waters from the Pacific Ocean into the Arctic Ocean via Bering Strait may have caused a freshening of Arctic surface waters facilitating sea‐ice formation (Haug et al, ; Matthiessen, Knies, et al, ; Polyak et al, ). Based on sedimentological and micropaleontological data, sea‐ice conditions similar to those of today with a perennial sea‐ice cover in the central Arctic Ocean probably became more dominant during the last about 1 Ma (Dipre et al, ). So far, however, additional multiproxy records distributed throughout the Arctic Ocean are needed for a more detailed reconstruction of the history of perennial versus seasonal sea ice and ice‐free intervals during the past several million years (Matthiessen, Knies, et al, ; Polyak et al, ).…”

Section: Long‐term Climate Change From Greenhouse To Icehouse Conditionsmentioning

confidence: 99%

The Late Mesozoic‐Cenozoic Arctic Ocean Climate and Sea Ice History: A Challenge for Past and Future Scientific Ocean Drilling

Stein

2019

Paleoceanog and Paleoclimatol

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Over the past 3-4 decades, coincident with global warming and atmospheric CO 2 increase, Arctic sea ice has significantly decreased in its extent as well as in thickness. When extrapolating this alarming trend, the central Arctic Ocean might become ice-free during summers within about the next 2-5 decades. Paleoclimate records allow us to better understand the processes controlling modern climate change and distinguish between natural and anthropogenic forcing. In this context, detailed studies of the earlier Earth history characterized by a much warmer global climate with elevated atmospheric CO 2 concentrations are important. The main focus of this review paper is the long-term late Mesozoic-Cenozoic Arctic Ocean climate history from Greenhouse to Icehouse conditions, with special emphasis on Arctic sea ice history. Starting with some information on the Cretaceous Arctic Ocean climate, this paper will concentrate on selected results from Integrated Ocean Drilling Program (IODP) Expedition 302 (Arctic Ocean Coring Expedition (ACEX)), the first scientific drilling in the permanently ice-covered Arctic Ocean, dealing with the Cenozoic climate history. While these results from ACEX were unprecedented, key questions related to the Cenozoic Arctic climate history remain unanswered, largely due to the major mid-Cenozoic hiatus (if existing) and partly to the poor recovery of the ACEX record. Following-up ACEX and its cutting-edge science, a second scientific drilling on Lomonosov Ridge with a focus on the reconstruction of the continuous and complete Cenozoic Arctic Ocean climate history has currently been proposed and scheduled as IODP Expedition 377 for 2021.

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Ice sheet controls on fine-grained deposition at the southern Mendeleev Ridge since the penultimate interglacial

Zhang

et al. 2020

Acta Oceanol. Sin.

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Plio-Pleistocene sedimentary record from the Northwind Ridge: new insights into paleoclimatic evolution of the western Arctic Ocean for the last 5 Ma

Cited by 25 publications

References 94 publications

Interglacial Paleoclimate in the Arctic

Interglacial Paleoclimate in the Arctic

The Late Mesozoic‐Cenozoic Arctic Ocean Climate and Sea Ice History: A Challenge for Past and Future Scientific Ocean Drilling

Ice sheet controls on fine-grained deposition at the southern Mendeleev Ridge since the penultimate interglacial

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