47 ground-penetrating radar lines of Area 4 - Gravel spit system from Potter Cove, King George Island, Antarctic Peninsula
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2018
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| _version_ | 1867171820308791296 |
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| author | Lindhorst, Sebastian Schutter, Ilona |
| author_facet | Lindhorst, Sebastian Schutter, Ilona |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Sedimentary architecture and morphogenetic evolution of a polar bay‐mouth gravel‐spit system are revealed based on topographic mapping, sedimentological data, radiocarbon dating and ground‐penetrating radar investigations. Data document variable rates of spit progradation in reaction to atmospheric warming synchronous to the termination of the last glacial re‐advance (LGR, 0.45‐0.25 ka BP), the southern hemisphere equivalent of the Little Ice Age cooling period. Results show an interruption of spit progradation that coincides with the proposed onset of accelerated isostatic rebound in reaction to glacier retreat. Spit growth resumed in the late 19th century after the rate of isostatic rebound decreased, and continues until today. The direction of modern spit progradation, however, is rotated northwards compared to the growth axis of the early post‐LGR spit. This is interpreted to reflect the shift and strengthening in the regional wind field during the last century. A new concept for the interplay of polar gravel‐spit progradation and glacio‐isostatic adjustment is presented, allowing for the prediction of future coastal evolution in comparable polar settings. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_825658 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | 47 ground-penetrating radar lines of Area 4 - Gravel spit system from Potter Cove, King George Island, Antarctic Peninsula Lindhorst, Sebastian Schutter, Ilona Date/Time of event; Date/Time of event 2; Event label; File name; Frequency; Latitude of event; Latitude of event 2; Longitude of event; Longitude of event 2; Maxwell Bay, King George Island, Antarctic Peninsula; PB-001; PB-002; PB-003; PB-004; PB-005; PB-006; PB-007; PB-008; PB-009; PB-010; PB-011; PB-012; PB-013; PB-014; PB-015; PB-016; PB-017; PB-018; PB-019; PB-020; PB-021; PB-022; PB-023; PB-024; PB-025; PB-083; PB-084; PB-085; PB-086; PB-152; PB-153; PB-154; PB-155; PB-156; PB-157; PB-158; PB-159; PB-160; PB-161; PB-162; PB-163; PB-164; PB-165; PB-166; PB-167; PB-168; PB-169; RADAR; Radar profile; Uniform resource locator/link to file Sedimentary architecture and morphogenetic evolution of a polar bay‐mouth gravel‐spit system are revealed based on topographic mapping, sedimentological data, radiocarbon dating and ground‐penetrating radar investigations. Data document variable rates of spit progradation in reaction to atmospheric warming synchronous to the termination of the last glacial re‐advance (LGR, 0.45‐0.25 ka BP), the southern hemisphere equivalent of the Little Ice Age cooling period. Results show an interruption of spit progradation that coincides with the proposed onset of accelerated isostatic rebound in reaction to glacier retreat. Spit growth resumed in the late 19th century after the rate of isostatic rebound decreased, and continues until today. The direction of modern spit progradation, however, is rotated northwards compared to the growth axis of the early post‐LGR spit. This is interpreted to reflect the shift and strengthening in the regional wind field during the last century. A new concept for the interplay of polar gravel‐spit progradation and glacio‐isostatic adjustment is presented, allowing for the prediction of future coastal evolution in comparable polar settings. |
| title | 47 ground-penetrating radar lines of Area 4 - Gravel spit system from Potter Cove, King George Island, Antarctic Peninsula |
| topic | Date/Time of event; Date/Time of event 2; Event label; File name; Frequency; Latitude of event; Latitude of event 2; Longitude of event; Longitude of event 2; Maxwell Bay, King George Island, Antarctic Peninsula; PB-001; PB-002; PB-003; PB-004; PB-005; PB-006; PB-007; PB-008; PB-009; PB-010; PB-011; PB-012; PB-013; PB-014; PB-015; PB-016; PB-017; PB-018; PB-019; PB-020; PB-021; PB-022; PB-023; PB-024; PB-025; PB-083; PB-084; PB-085; PB-086; PB-152; PB-153; PB-154; PB-155; PB-156; PB-157; PB-158; PB-159; PB-160; PB-161; PB-162; PB-163; PB-164; PB-165; PB-166; PB-167; PB-168; PB-169; RADAR; Radar profile; Uniform resource locator/link to file |
| url | https://doi.org/10.1594/PANGAEA.825658 |