Letters to ESEX
Rock warming and drying under simulated intertidal conditions, part I: experimental procedures and comparisons with field data
Article first published online: 17 OCT 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Earth Surface Processes and Landforms
Volume 36, Issue 15, pages 2114–2121, December 2011
How to Cite
Coombes, M. A. (2011), Rock warming and drying under simulated intertidal conditions, part I: experimental procedures and comparisons with field data. Earth Surf. Process. Landforms, 36: 2114–2121. doi: 10.1002/esp.2230
- Issue published online: 1 DEC 2011
- Article first published online: 17 OCT 2011
- Accepted manuscript online: 12 SEP 2011 09:28PM EST
- Manuscript Accepted: 31 AUG 2011
- Manuscript Revised: 24 AUG 2011
- Manuscript Received: 3 MAY 2011
- rock weathering;
- laboratory simulation;
- rock thermal properties;
- intertidal zone
The wetting–drying and warming–cooling behaviours of rock and stone are known to influence the nature and rate of weathering. The way materials warm-up and dry-out also influences their suitability as biological substrata. While rock thermal behaviours have been measured under controlled laboratory conditions, previous experiments have largely been restricted to terrestrial simulations due to practical constraints. Where efforts have been made to simulate intertidal conditions, expansion and contraction of rocks or rates of breakdown (i.e. sediment production and weight loss) have been measured, while detailed observations of thermal and drying behaviours have rarely been made.
A simple, semi-automated procedure is described that enabled measurement of surface temperatures and desorption (evaporative water loss) for different material types (rock and concrete) under simulated semidiurnal tide conditions. Some preliminary results are presented illustrating the types of data that were obtained, and comparisons are made with temperature data collected on a rock platform in the UK to assess the ability of the procedure to adequately represent field conditions. Copyright © 2011 John Wiley & Sons, Ltd.