Lara F. Pérez

IODP Expedition 382 Towed magnetometer

Michael E Weber, Maureen E. Raymo, Victoria L. Peck, Trevor Williams et autres

Seafloor magnetometer data were measured using a Marine Magnetics 1000 m SeaSpy towed magnetometer. Raw log and data files are presented by expedition.

IODP Expedition 382 Navigation

Michael E Weber, Maureen E. Raymo, Victoria L. Peck, Trevor Williams et autres

Operational navigation data were measured using Trimble GPS systems and saved as navigational data files including configuration, data, logs, pictures, vehicle, and waypoints. Site Fix summary data and plots are presented in Microsoft Excel. Data are presented by expedition.

Abrupt Pleistocene transitions in deep ocean drilling records west and south of Greenland

Paul Cornils Knutz, Ricardo Monedero-Contreras, Tjördis Störling, Lara F. Pérez et autres

The Greenland Ice Sheet (GrIS) plays a key role in the global climate system by acting as an interglacial refrigerator closely coupled to North Atlantic ocean circulation. Global warming is presently forcing the GrIS to lose mass with at least 27 cm …

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Submarine landslides of the Antarctic Peninsula accretionary wedge: competing effects of tectonics, gas hydrates and glaciomarine sedimentation

Roger Urgeles, Ismael Roldan, Ricardo León, Lara F. Pérez et autres

High-latitude continental margins host some of the largest submarine landslide worldwide. Much speculation has focused on their relationship to glaciomarine sedimentation, gas hydrates and seismic shaking and, ultimately, the climatic variations that link to the former three factors. In this study we …

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Sedimentary processes associated with recent landslides – Karrat Fjord 2017 case of study

Lara F. Pérez, Freja A. Nielsen, Paul Cornils Knutz, Thorbjørn J. Andersen et autres

Tsunamigenic landslides represent a major geohazard in the fjord environments of central West Greenland, induced by steep topographic reliefs and changing Arctic conditions. A dramatic example occurred on June 17th 2017, when a slope failure on the south-facing wall of Ummiammakku Mountain …

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A giant Early Holocene tsunamigenic rock-ice avalanche in South Greenland preconditioned by glacial debuttressing

Lisbeth Pedersen, Kristian Svennevig, Costanza Morino, Anne Søndergaard et autres

Deposits of a giant (more than 1 km 3 ) rock-ice avalanche with a runout of 15.8 km and an associated failure scar have been discovered in Tupaasat Valley, South Greenland ( Kalaallit Nunaat ). To study its formation, a geomorphological map …

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Sensitivity analysis of the physicochemical oceanographic drivers on the gas hydrate thickness variability associated with the last glacial Maximum - the European continental margins as a study case

Ricardo León, Lara F. Pérez, Carolina Guardiola‐Albert, Carmen Julia Giménez-Moreno et autres

Abstract This study provides a sensitivity analysis of the main physicochemical (PC) oceanographic variables (pressure-depth, bottom water temperature and salinity) that control the theoretical stability of marine gas hydrates and quantifies their relative importance. It focuses on how glacial-interglacial periods, such as …

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Extremely poleward shift of Antarctic Circumpolar Current by eccentricity during the Last Interglacial

Lijuan Lu, Zheng Xufeng, Michael E Weber, Victoria L. Peck et autres

The Antarctic Circumpolar Current (ACC) exerts substantial control on the physical, chemical, and biological properties of the Southern Ocean, playing a key role in modulating the global carbon cycle and climate. However, the orbital-scale forcing and future changes in the strength and …

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Potential for scientific drilling of sediment drifts adjacent to Denmark Strait oceanic gateway

Stephen Jones, Michael B.W. Fyhn, John R. Hopper, Lara F. Pérez et autres

Denmark Strait between Greenland and Iceland is an important gateway within the Atlantic Meridional Overturning Circulation system. The flow of bottom water through Denmark Strait, called Denmark Strait Overflow Water (DSOW), carries over half of deep Arctic-to-Atlantic flow at present but cannot …

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Data report: gas hydrate assessment in Baffin Bay at IODP Expedition 400 drill sites

F. Naim, Ann E. Cook, Paul Cornils Knutz, Anne Jennings et autres

A gas hydrate assessment at International Ocean Discovery Program Expedition 400 drill sites was conducted using downhole logging and core data.Here, we calculate and present the base of gas hydrate stability zone at Expedition 400 drill sites in Baffin Bay, northwest Greenland.We …

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Expedition 400 summary

Paul Cornils Knutz, Anne Jennings, Laurel B. Childress, Raquel Bryant et autres

International audience

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Expedition 400 methods

Paul Cornils Knutz, Anne Jennings, Laurel B. Childress, Raquel Bryant et autres

International audience

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