Persistent Identifier
|
doi:10.18710/GUX2O8 |
Publication Date
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2023-04-04 |
Title
| Replication Data for: Spatial changes in gas transport and sediment stiffness influenced by regional stress: observations from piezometer data along Vestnesa Ridge, eastern Fram Strait |
Author
| Plaza-Faverola, Andreia (UiT The Arctic University of Norway) - ORCID: 0000-0001-7282-4277
Sultan, Nabil (Département Géosciences Marines, Ifremer, Plouzané, France) - ORCID: 0000-0003-0927-4908 |
Point of Contact
|
Use email button above to contact.
Plaza-Faverola, Andreia (UiT The Arctic University of Norway) |
Description
| This database comprises piezometer pore-pressure and temperature data, analyses from Calypso sediment cores (grain sizes and logs) and results from geotechnical tests (index tests and oedometer tests), used for the study of seepage systems along the Vestnesa Ridge, in the eastern Fram Strait. The data were collected over 2 research expeditions to the area. The reports for each of the expeditions can be accessed via Septentrio (https://septentrio.uit.no/index.php/cage): - CAGE20-6 cruise report (https://doi.org/10.7557/cage.6918) -CAGE19-3 cruise report (https://doi.org/10.7557/cage.6911) In-situ pore fluid pressure (P) and temperature (T) were measured using the Ifremer piezometer which consists of a cable-deployed tool equipped with a sediment lance of 60 mm diameter carrying differential pore pressure (i.e., pore pressures in excess of hydrostatic pressures or excess pore pressure) and temperature sensors ( e.g., In situ equilibrium pore-water pressures derived from partial piezoprobe dissipation tests in marine sediments, Canadian Geotechnical Journal, 50(12), 1294-1305). Calypso cores were taken for correlation with piezometer data using the Calypso Giant Piston Corer operated by the Norwegian Institute for Marine research and the University of Bergen. Density, P-wave velocity and magnetic susceptibility (MS) logs on the unsplit sections were registered using the multi sensor core logger (MSCL) at UiT – The Arctic University of Norway in Tromsø. The upper 9 m of the calypso cores were subsampled in 1-cm thick slices at 10 cm intervals in cores C-4 and C-12. Core C-5 was subsampled every 20 cm, except between 4 to 5 m depth where the sampling was performed every 10 cm. The textural characteristics of the sediments were determined through wet sieving at 63 µm to separate the mud fraction (clay and silt) from the fractions coarser than 63 microns (sand, grains and pebbles). Oedometer tests with constant rate of strain (CRS) were conducted at whole-around sub-samples from 2 depth intervals along each core at the labs by the Norwegian Geotechnical Institute (NGI). In addition, oedometer tests with incremental loading according to the ASTM D-2435 method were performed on 10 samples at Ifremer at approximately each 2-meter through the upper 9 m of core from sites 5 and 12. (2022-10-17) |
Subject
| Earth and Environmental Sciences |
Keyword
| Piezometer
pore-fluid pressures
fluid flow
gas hydrates
calypso cores
Vestnesa Ridge
Fram Strait |
Related Publication
| Plaza-Faverola, A., Sultan, N., Lucchi, R. G., El bani Altuna, N., Ramachandran, H., Singhroha, S., et al. (2023). Spatial changes in gas transport and sediment stiffness influenced by regional stress: Observations from piezometer data along Vestnesa Ridge, eastern Fram Strait. Journal of Geophysical Research: Solid Earth, 128, e2022JB025868. doi: 10.1029/2022JB025868 https://doi.org/10.1029/2022JB025868 |
Language
| English |
Producer
| UiT The Arctic University of Norway (UiT) https://en.uit.no/ |
Contributor
| Researcher : Sultan, Nabil |
Funding Information
| Tromsø Research Foundation: A31680
The Research Council of Norway: 287865 |
Distributor
| UiT The Arctic University of Norway (UiT The Arctic University of Norway) https://dataverse.no/dataverse/uit |
Depositor
| Plaza-Faverola, Andreia |
Deposit Date
| 2022-10-17 |
Date of Collection
| Start Date: 2019-10 ; End Date: 2020-11 |
Data Type
| Piezometer; Calypso core analyses; Geotechnical lab tests on Calypso cores |
Related Material
| Knies, J., & Vadakkepuliyambatta, S. (2023). CAGE19-3 Cruise Report: Calypso giant piston coring in the Atlantic-Arctic gateway – Investigation of continental margin development and effect of tectonic stress on methane release. CAGE – Centre for Arctic Gas Hydrate, Environment and Climate Report Series, 7. https://doi.org/10.7557/cage.6911; Plaza-Faverola, A. (2023). CAGE20-6 Cruise Report: Pore-fluid pressure and heat flow surveys along the Vestnesa Ridge, west-Svalbard continental margin. CAGE – Centre for Arctic Gas Hydrate, Environment and Climate Report Series, 8. https://doi.org/10.7557/cage.6918 |