Geochemical, sedimentological and micropaleontological analysis of the 9.2 m long, radiocarbon-dated (last 16.8 kyr) LAR sediment core from Larenas Bay (48°S; Chile)
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| Main Authors: | , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2021
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| _version_ | 1867168575045763072 |
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| author | Troch, Matthias Bertrand, Sebastien Lange, Carina Beatriz Cárdenas, Paola Arz, Helge Wolfgang Pantoja, Silvio De Pol-Holz, Ricardo Kilian, Rolf |
| author_facet | Troch, Matthias Bertrand, Sebastien Lange, Carina Beatriz Cárdenas, Paola Arz, Helge Wolfgang Pantoja, Silvio De Pol-Holz, Ricardo Kilian, Rolf |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We performed geochemical, sedimentological and micropaleontological analyses on a 9.2 m long radiocarbon-dated sediment core collected from Larenas Bay (48°S; Chile) to reconstruct basin isolation and marine ingression over the last 16.8 kyr. The LAR sediment core was collected with a 5 m long Uwitec piston corer (63 mm diameter) onboard the R/V Gran Campo II on September 12th 2008. Two overlapping ~4.6 m long piston cores (LAR I and LAR II) and a 65 cm long gravity core that preserved the sediment-water interface were retrieved. To investigate modern sediments, the top centimeter of an additional Rumohr gravity core (LAR R2) taken at the same location on January 19th 2020 was used. The piston cores were sampled in 2 cm thick slices which were subsequently freeze-dried. Discrete analyses were performed at a 10 to 20 cm interval. A separate set of 1 cm thick samples was used for density measurements. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_937823 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Geochemical, sedimentological and micropaleontological analysis of the 9.2 m long, radiocarbon-dated (last 16.8 kyr) LAR sediment core from Larenas Bay (48°S; Chile) Troch, Matthias Bertrand, Sebastien Lange, Carina Beatriz Cárdenas, Paola Arz, Helge Wolfgang Pantoja, Silvio De Pol-Holz, Ricardo Kilian, Rolf Alkenones; Baker-Martínez fjord system; biogenic silica; Bulk organic geochemistry; Calcium carbonate; Chilean Patagonia; density; Diatoms; Grain Size; Holocene; Late Glacial; Magnetic susceptibility; stable carbon isotopes We performed geochemical, sedimentological and micropaleontological analyses on a 9.2 m long radiocarbon-dated sediment core collected from Larenas Bay (48°S; Chile) to reconstruct basin isolation and marine ingression over the last 16.8 kyr. The LAR sediment core was collected with a 5 m long Uwitec piston corer (63 mm diameter) onboard the R/V Gran Campo II on September 12th 2008. Two overlapping ~4.6 m long piston cores (LAR I and LAR II) and a 65 cm long gravity core that preserved the sediment-water interface were retrieved. To investigate modern sediments, the top centimeter of an additional Rumohr gravity core (LAR R2) taken at the same location on January 19th 2020 was used. The piston cores were sampled in 2 cm thick slices which were subsequently freeze-dried. Discrete analyses were performed at a 10 to 20 cm interval. A separate set of 1 cm thick samples was used for density measurements. |
| title | Geochemical, sedimentological and micropaleontological analysis of the 9.2 m long, radiocarbon-dated (last 16.8 kyr) LAR sediment core from Larenas Bay (48°S; Chile) |
| topic | Alkenones; Baker-Martínez fjord system; biogenic silica; Bulk organic geochemistry; Calcium carbonate; Chilean Patagonia; density; Diatoms; Grain Size; Holocene; Late Glacial; Magnetic susceptibility; stable carbon isotopes |
| url | https://doi.org/10.1594/PANGAEA.937823 |