[102] - Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert
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| Features | ||
|---|---|---|
| Citation | ||
| Ritter, B., 2018. Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert. Nature Scientific Reports, 1 - 16. | ||
| Citation Options | ||
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| Identification | ||
| Title(s): | Main Title: Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert | |
| Description(s): | Abstract: Dating of extensive alluvial fan surfaces and fluvial features in the hyperarid core of the Atacama Desert, Chile, using cosmogenic nuclides provides unrivalled insights about the onset and variability of aridity. The predominantly hyperarid conditions help to preserve the traces of episodic climatic and/ or slow tectonic change. Utilizing single clast exposure dating with cosmogenic 10Be and 21Ne, we determine the termination of episodes of enhanced fluvial erosion and deposition occurring at ~19, ~14, ~9.5 Ma; large scale fluvial modification of the landscape had ceased by ~2–3 Ma. The presence of clasts that record pre-Miocene exposure ages (~28 Ma and ~34 Ma) require stagnant landscape development during the Oligocene. Our data implies an early onset of (hyper-) aridity in the core region of the Atacama Desert, interrupted by wetter but probably still arid periods. The apparent conflict with interpretation that favour a later onset of (hyper-) aridity can be reconciled when the climatic gradients within the Atacama Desert are considered. | |
| Responsible Party | ||
| Creator(s): | Author: Benedikt Ritter | |
| Publisher: | Nature Scientific Reports | |
| Topic | ||
| CRC1211 Topic: | Dating | |
| Related Sub-project(s): | D1, A2 | |
| Subject(s): | CRC1211 Keywords: Cosmogenic Nuclides, Geochronology, Geomorphology, Tectonics | |
| File Details | ||
| File Name: | Ritter_et_al-2018b-Scientific_Reports.pdf | |
| Data Type: | Text | |
| File Size: | 10181 kB (9.942 MB) | |
| Date(s): | Available: 2018-09-17 | |
| Mime Type: | application/pdf | |
| Language: | English | |
| Status: | Completed | |
| Constraints | ||
| Download Permission: | Free | |
| General Access and Use Conditions: | According to the CRC1211DB data policy agreement. | |
| Access Limitations: | According to the CRC1211DB data policy agreement. | |
| Geographic | ||
| North: | - |  |
| East: | - | |
| South: | - | |
| West: | - | |
| Measurement Region: | Central focus area | |
| Measurement Location: | --Central focus area-- | |
| Specific Informations - Publication | ||
| Status: | Accepted | |
| Review: | PeerReview | |
| Year: | 2018 | |
| Type: | Article | |
| Article Type: | Journal | |
| Source: | Nature Scientific Reports | |
| Page Range: | 1 - 16 | |
| Metadata Details | ||
| Metadata Creator: | Benedikt Ritter | |
| Metadata Created: | 2019-06-20 | |
| Metadata Last Updated: | 2019-06-20 | |
| Subproject: | D1 | |
| Funding Phase: | 1 | |
| Metadata Language: | English | |
| Metadata Version: | V42 | |
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| Dataset Metrics | ||
| Page Visits: | 26 | |
| Metadata Downloads: | 0 | |
| Dataset Downloads: | 0 | |
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