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The decrease in the shear strength of volcanic materials with argillic hydrothermal alteration, insights from the summit region of Teide stratovolcano, Tenerife

Author
del Potro, R.; Hurlimann, M.
Type of activity
Journal article
Journal
Engineering geology
Date of publication
2009-02
Volume
104
Number
1-2
First page
135
Last page
143
DOI
https://doi.org/10.1016/j.enggeo.2008.09.005 Open in new window
Repository
https://www.researchgate.net/publication/237010584_The_decrease_in_the_shear_strength_of_volcanic_materials_with_argillic_hydrothermal_alteration_insights_from_the_summit_region_of_Teide_stratovolcano_Tenerife Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S0013795208002457 Open in new window
Abstract
Hydrothermal alteration around the summit region of Teide stratovolcano, in Tenerife, has decomposed lavas to weak, clay-rich soils. This process has been observed at other volcanoes. The purpose of this study is twofold: firstly to identify and geotechnically characterise weak volcanic materials, and secondly to estimate the reduction in shear strength caused by argillic hydrothermal alteration. Hydrothermally altered soil units, the weakest materials found on the flanks of Teide, have been col...
Keywords
Volcanic soils Hydrothermal alteration Alunite Kaolinite Teide Geotechnical tests
Group of research
MSR - Soil and Rock Mechanics

Participants