Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia)
Abstract A total of 1500 spacing distances of sorted stripes were measured on 30 alpine sites in the Bolivian Andes with distinct slope angles, elevations and aspects. Additionally, the geometric evolution of stripes was systematically analysed along a slope with varying inclinations and morphology....
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crwiley:10.1002/ppp.398 2024-09-09T20:03:23+00:00 Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) Francou, Bernard Méhauté, Nicolas Le Jomelli, Vincent 2001 http://dx.doi.org/10.1002/ppp.398 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.398 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.398 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 12, issue 4, page 367-377 ISSN 1045-6740 1099-1530 journal-article 2001 crwiley https://doi.org/10.1002/ppp.398 2024-06-20T04:27:16Z Abstract A total of 1500 spacing distances of sorted stripes were measured on 30 alpine sites in the Bolivian Andes with distinct slope angles, elevations and aspects. Additionally, the geometric evolution of stripes was systematically analysed along a slope with varying inclinations and morphology. We dealt with mainly small‐sized stripes (<40 cm). The scatter observed in the distribution of spacing distances suggests that the factors controlling the geometry of sorted stripes are complex. Among them, we point out the role of slope inclination and coarse sediment supply. They imply that stripe geometry does not depend exclusively on processes operating in soils such as frost heaving and sorting, but also on the dynamics of the flux of coarse materials along the sloping surface. This analysis questions models which assume that sorted stripes are organized according to a strict periodicity whose origin depends on specific physical processes. Particularly, it appears that recent convective models cannot explain the characteristics and the evolution of patterned slopes in this environment. Copyright © 2001 John Wiley & Sons, Ltd. Article in Journal/Newspaper Permafrost and Periglacial Processes Wiley Online Library Stripe ENVELOPE(9.914,9.914,63.019,63.019) Permafrost and Periglacial Processes 12 4 367 377 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract A total of 1500 spacing distances of sorted stripes were measured on 30 alpine sites in the Bolivian Andes with distinct slope angles, elevations and aspects. Additionally, the geometric evolution of stripes was systematically analysed along a slope with varying inclinations and morphology. We dealt with mainly small‐sized stripes (<40 cm). The scatter observed in the distribution of spacing distances suggests that the factors controlling the geometry of sorted stripes are complex. Among them, we point out the role of slope inclination and coarse sediment supply. They imply that stripe geometry does not depend exclusively on processes operating in soils such as frost heaving and sorting, but also on the dynamics of the flux of coarse materials along the sloping surface. This analysis questions models which assume that sorted stripes are organized according to a strict periodicity whose origin depends on specific physical processes. Particularly, it appears that recent convective models cannot explain the characteristics and the evolution of patterned slopes in this environment. Copyright © 2001 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Francou, Bernard Méhauté, Nicolas Le Jomelli, Vincent |
spellingShingle |
Francou, Bernard Méhauté, Nicolas Le Jomelli, Vincent Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) |
author_facet |
Francou, Bernard Méhauté, Nicolas Le Jomelli, Vincent |
author_sort |
Francou, Bernard |
title |
Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) |
title_short |
Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) |
title_full |
Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) |
title_fullStr |
Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) |
title_full_unstemmed |
Factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (Cordillera Real, 16 °S, Bolivia) |
title_sort |
factors controlling spacing distances of sorted stripes in a low‐latitude, alpine environment (cordillera real, 16 °s, bolivia) |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1002/ppp.398 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.398 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.398 |
long_lat |
ENVELOPE(9.914,9.914,63.019,63.019) |
geographic |
Stripe |
geographic_facet |
Stripe |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 12, issue 4, page 367-377 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.398 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
12 |
container_issue |
4 |
container_start_page |
367 |
op_container_end_page |
377 |
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1809935343647981568 |