Expedition 403 Scientific Prospectus: Eastern Fram Strait Paleo-Archive (FRAME)

Lucchi, Renata Giulia; John, Kristen St.; Williams, Trevor

doi:10.14379/iodp.sp.403.2023

Cited by 3 publications

(1 citation statement)

References 200 publications

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“…However, scientific drilling expeditions in the Arctic and northern North Atlantic oceans have, until now, focused on sites far from the Greenland margins (Fig. 1), e.g., Ocean Drilling Program (ODP) 151, IODP 395, and IODP 302 (Arctic Coring Expedition -ACEX) as well as the scheduled IODP Expedition 403 to the eastern Fram Strait (Lucchi et al, 2023). The hitherto only drilling campaign directly targeting Greenland margin sedimentary successions has been IODP Expedition 400, implemented in 2023, which has investigated the glacial-interglacial variability and late-Cenozoic paleoceanography of the Northwest Greenland margin (Knutz et al, 2024).…”

Section: Introductionmentioning

confidence: 99%

NorthGreen: unlocking records from sea to land in Northeast Greenland

Pérez,

Knutz,

Hopper

et al. 2024

Sci. Dril.

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Abstract. The increasing anthropogenic CO2 forcing of the climate system calls for a better understanding of how polar ice sheets may respond to accelerating global warming. The sensitivity of the Greenland ice sheet to polar amplification, changes in ocean heat transport, and deteriorating perennial sea ice conditions makes the Northeast Greenland margin a pertinent location with respect to understanding the impact of climate change on ice sheet instability and associated sea level rise. Throughout the Cenozoic, ocean heat fluxes toward and along Northeast Greenland have been controlled by water mass exchanges between the Arctic and Atlantic oceans. A key element here is the current flow through oceanic gateways, notably the Fram Strait and the Greenland–Scotland Ridge. To gain a long-term (million-year) perspective of ice sheet variability in this region, it is essential to understand the broader context of ice–ocean–tectonic interactions. Coupling between the ice sheet, the subsurface, the ocean, and sea ice are readily observable today in Northeast Greenland, but geological records to illuminate long-term trends and their interplay with other parts of the global climate system are lacking. Consequently, the NorthGreen workshop was organized by the Geological Survey of Denmark and Greenland in collaboration with Aarhus (Denmark) and Stockholm (Sweden) universities in November 2022 to develop mission-specific platform (MSP) proposals for drilling the Northeast Greenland margin under the umbrella of the MagellanPlus Workshop Series Programme of the European Consortium for Ocean Research Drilling (ECORD). Seventy-one participants representing a broad scientific community discussed key scientific questions and primary targets that could be addressed through scientific drilling in Northeast Greenland. Three pre-proposals were initiated during the workshop targeting Morris Jesup Rise, the Northeast Greenland continental shelf, and Denmark Strait.

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Section: Introductionmentioning

confidence: 99%

NorthGreen: unlocking records from sea to land in Northeast Greenland

Pérez,

Knutz,

Hopper

et al. 2024

Sci. Dril.

View full text Add to dashboard Cite

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Expedition 403 Preliminary Report: Eastern Fram Strait Paleo-Archive

Lucchi,

St. John,

Ronge

2024

International Ocean Discovery Program Preliminary Report

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Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record – SVALCLIME, a workshop report

Senger,

Kulhanek,

Jones

et al. 2023

Sci. Dril.

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Abstract. We held the MagellanPlus workshop SVALCLIME “Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record”, from 18 to 21 October 2022 in Longyearbyen, to discuss scientific drilling of the unique high-resolution climate archives of Neoproterozoic to Paleogene age present in the sedimentary record of Svalbard. Svalbard is globally unique in that it facilitates scientific coring across multiple stratigraphic intervals within a relatively small area. The polar location of Svalbard for some of the Mesozoic and the entire Cenozoic makes sites in Svalbard highly complementary to the more easily accessible mid-latitude sites, allowing for investigation of the polar amplification effect over geological time. The workshop focused on how understanding the geological history of Svalbard can improve our ability to predict future environmental changes, especially at higher latitudes. This topic is highly relevant for the ICDP 2020–2030 Science Plan Theme 4 “Environmental Change” and Theme 1 “Geodynamic Processes”. We concluded that systematic coring of selected Paleozoic, Mesozoic, and Paleogene age sediments in the Arctic should provide important new constraints on deep-time climate change events and the evolution of Earth's hydrosphere–atmosphere–biosphere system. We developed a scientific plan to address three main objectives through scientific onshore drilling on Svalbard: a. Investigate the coevolution of life and repeated icehouse–greenhouse climate transitions, likely forced by orbital variations, by coring Neoproterozoic and Paleozoic glacial and interglacial intervals in the Cryogenian (“Snowball/Slushball Earth”) and late Carboniferous to early Permian time periods.b. Assess the impact of Mesozoic Large Igneous Province emplacement on rapid climate change and mass extinctions, including the end-Permian mass extinction, the end-Triassic mass extinction, the Jenkyns Event (Toarcian Oceanic Anoxic Event), the Jurassic Volgian Carbon Isotopic Excursion and the Cretaceous Weissert Event and Oceanic Anoxic Event 1a.c. Examine the early Eocene hothouse and subsequent transition to a coolhouse world in the Oligocene by coring Paleogene sediments, including records of the Paleocene–Eocene Thermal Maximum, the Eocene Thermal Maximum 2, and the Eocene–Oligocene transition. The SVALCLIME science team created plans for a 3-year drilling programme using two platforms: (1) a lightweight coring system for holes of ∼ 100 m length (4–6 sites) and (2) a larger platform that can drill deep holes of up to ∼ 2 km (1–2 sites). In situ wireline log data and fluid samples will be collected in the holes, and core description and sampling will take place at The University Centre in Svalbard (UNIS) in Longyearbyen. The results from the proposed scientific drilling will be integrated with existing industry and scientific boreholes to establish an almost continuous succession of geological environmental data spanning the Phanerozoic. The results will significantly advance our understanding of how the interplay of internal and external Earth processes are linked with global climate change dynamics, the evolution of life, and mass extinctions.

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Expedition 403 Scientific Prospectus: Eastern Fram Strait Paleo-Archive (FRAME)

Cited by 3 publications

References 200 publications

NorthGreen: unlocking records from sea to land in Northeast Greenland

NorthGreen: unlocking records from sea to land in Northeast Greenland

Expedition 403 Preliminary Report: Eastern Fram Strait Paleo-Archive

Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record – SVALCLIME, a workshop report

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