Internal Structure and Composition of a Rock Glacier in the Dry Andes, Inferred from Ground‐penetrating Radar Data and its Artefacts

Sébastien Monnier and Christophe Kinnard

Permafrost and Periglacial Processes, 2015, vol. 26, issue 4, 335-346

Abstract: Using ground‐penetrating radar (GPR), we studied an entire 2.2 km long rock glacier (3780–4350 m asl) in the dry Andes of Chile with the aim of inferring its composition. In the high‐quality, unmigrated data, we identified the active layer base and the rock glacier floor. In between, hyperbolae generated by diffracting boulders were inventoried; the ones along the rock glacier floor (n = 51) allowed determination of the average electromagnetic (EM) velocity in the rock glacier, the latter being further used for migration. Within the rock glacier (16–39 m thick), the EM velocity varies between 0.076 and 0.167 m.ns‐1; the main stratigraphic features observed are upward‐dipping reflectors. The low EM velocities (

Date: 2015
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://doi.org/10.1002/ppp.1846

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wly:perpro:v:26:y:2015:i:4:p:335-346

Access Statistics for this article

More articles in Permafrost and Periglacial Processes from John Wiley & Sons
Bibliographic data for series maintained by Wiley Content Delivery ().