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Critical assessment...
Critical assessment of the 2°C min−1 threshold for thermal stress weathering
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- Boelhouwers, Jan (författare)
- Uppsala universitet,Kulturgeografiska institutionen
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- Jonsson, Mikael (författare)
- Uppsala universitet,Kulturgeografiska institutionen
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(creator_code:org_t)
- 2016-11-15
- 2013
- Engelska.
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Ingår i: Geografiska Annaler. Series A, Physical Geography. - : Informa UK Limited. - 0435-3676 .- 1468-0459. ; 95:4, s. 285-293
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Rock surface temperature changes in excess of 2°C min−1 have been argued to result in permanent strain in rock. The single threshold value and the supposed importance of a rate of 2°C min−1 rock temperature change is rejected, based on lack of a sufficient empirical basis, contrasting results from acoustic emission studies, varying strength properties of different rock types, lack of data on actual strain resulting from short-term temperature variations, and lack of notable long-term weathering effects in Nordic environments. Based on the presented discussion, the role of thermal shock weathering in cold regions is questioned and renewed emphasis is placed on the importance of absolute temperature and measurement of strain, as well as spatial temperature gradients.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- thermal stress
- weathering
- Geovetenskap med inriktning mot naturgeografi
- Earth Science with specialization in Physical Geography
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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