Erosion in the Patagonian coast by climatic change
Hydraulic conditions for gravel transport are not present in the main rivers of Patagonia. The accretion gravel landforms on the coast are relictic, due to the lack of gravel input by present rivers. Erosion is primarily caused by the lack of direct accumulation (the river load does not reach the co...
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2004
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n4_p715_Kokot http://hdl.handle.net/20.500.12110/paper_00044822_v59_n4_p715_Kokot |
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paper:paper_00044822_v59_n4_p715_Kokot2023-06-08T14:25:50Z Erosion in the Patagonian coast by climatic change Climatic change Coastal erosion Continental shelf Fluvial tranport climate change coastal erosion continental shelf fluvial process gravel lowstand Patagonia South America Western Hemisphere World Hydraulic conditions for gravel transport are not present in the main rivers of Patagonia. The accretion gravel landforms on the coast are relictic, due to the lack of gravel input by present rivers. Erosion is primarily caused by the lack of direct accumulation (the river load does not reach the coastline) and by induced erosion (since littoral drift is not saturated from river input, erosive processes operate on the coastal outcrops). The base level of the Pleistocene rivers, in several occasions, was about 150 m under the present base level, thus the presence of submerged coastlines is explained by the imput of abundant fluvial material from that period. Not only a sea level lowstand but also a climatic change can be inferred by the presence of submarine canyons in the continental shelf, which are the continuation of river valleys below present sea level. © 2004 Asociación Geológica Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n4_p715_Kokot http://hdl.handle.net/20.500.12110/paper_00044822_v59_n4_p715_Kokot |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Climatic change Coastal erosion Continental shelf Fluvial tranport climate change coastal erosion continental shelf fluvial process gravel lowstand Patagonia South America Western Hemisphere World |
| spellingShingle |
Climatic change Coastal erosion Continental shelf Fluvial tranport climate change coastal erosion continental shelf fluvial process gravel lowstand Patagonia South America Western Hemisphere World Erosion in the Patagonian coast by climatic change |
| topic_facet |
Climatic change Coastal erosion Continental shelf Fluvial tranport climate change coastal erosion continental shelf fluvial process gravel lowstand Patagonia South America Western Hemisphere World |
| description |
Hydraulic conditions for gravel transport are not present in the main rivers of Patagonia. The accretion gravel landforms on the coast are relictic, due to the lack of gravel input by present rivers. Erosion is primarily caused by the lack of direct accumulation (the river load does not reach the coastline) and by induced erosion (since littoral drift is not saturated from river input, erosive processes operate on the coastal outcrops). The base level of the Pleistocene rivers, in several occasions, was about 150 m under the present base level, thus the presence of submerged coastlines is explained by the imput of abundant fluvial material from that period. Not only a sea level lowstand but also a climatic change can be inferred by the presence of submarine canyons in the continental shelf, which are the continuation of river valleys below present sea level. © 2004 Asociación Geológica Argentina. |
| title |
Erosion in the Patagonian coast by climatic change |
| title_short |
Erosion in the Patagonian coast by climatic change |
| title_full |
Erosion in the Patagonian coast by climatic change |
| title_fullStr |
Erosion in the Patagonian coast by climatic change |
| title_full_unstemmed |
Erosion in the Patagonian coast by climatic change |
| title_sort |
erosion in the patagonian coast by climatic change |
| publishDate |
2004 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n4_p715_Kokot http://hdl.handle.net/20.500.12110/paper_00044822_v59_n4_p715_Kokot |
| _version_ |
1768545488694411264 |