2024-03-28T11:55:04Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/406632021-06-23T10:28:21Zcom_10324_1161com_10324_931com_10324_894col_10324_1318
The role of GPR techniques in determining ice cave properties: Peña Castil ice cave, Picos de Europa
Gómez Lende, Manuel
Serrano Cañadas, Enrique
Jordá Bordehore, Luis
Sandoval, Senén
Geomorfología - España - Picos de Europa
Ice cave
Cueva de hielo
Ground-penetrating radar
Georradar
Producción Científica
The structure and ice content of ice caves are poorly understood. Ground penetrating radar (GPR) can provide useful insights but has only rarely been applied to ice caves. This paper interprets GPR images (radargrams) in terms of internal structure, stratification, compaction, thickness and volume of the ice block in the Peña Castil ice cave (Central Massif of Picos de Europa, northern Spain), providing the endokarst geometry of the ice cave in GPR data reflections. Eight radargrams were obtained by applying a shielded ground‐coupled antenna with a nominal frequency of 400 MHz. Although the radargrams do not depict the ice–basal bedrock interface, they suggest that the ice block is at least 54 m deep and similarly thick. Some curved reflection signatures suggest a potential vertical displacement in the block of ice, and thus certain dynamics in the ice body. Other images show numerous interbedded clasts and thin sediment layers imaged as banded reflections. In this particular cave a direct visual inspection of the ice stratigraphy is a difficult task but GPR provides clear reflectivity patterns of some of its internal features, making GPR a suitable instrument for this and future studies to achieve a better and broader understanding of the internal behavior of ice caves.
Ministerio de Economía, Industria y Competitividad (project CGL2015-68144-R)
Ministerio de Agricultura y Pesca, Alimentación y Medio Ambiente (project OAPN-053/2010)
2020-03-16T13:40:58Z
2020-03-16T13:40:58Z
2016
info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
https://doi.org/10.1002/esp.3976
Earth Surface Processes and Landforms, 2016, vol. 41, n. 15. p. 2177-2190
1096-9837
http://uvadoc.uva.es/handle/10324/40663
eng
https://onlinelibrary.wiley.com/doi/abs/10.1002/esp.3976
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2016 Wiley
application/pdf
Wiley