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首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >Rock warming and drying under simulated intertidal conditions, Part I: Experimental procedures and comparisons with field data
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Rock warming and drying under simulated intertidal conditions, Part I: Experimental procedures and comparisons with field data

机译:模拟潮间条件下的岩石变暖和干燥,第一部分:实验程序和与现场数据的比较

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摘要

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.
机译:众所周知,岩石和石头的干湿和温热行为会影响风化的性质和速率。材料预热和变干的方式也会影响其作为生物基质的适用性。尽管已经在受控实验室条件下测量了岩石的热行为,但由于实际的限制,先前的实验很大程度上局限于地面模拟。在努力模拟潮间条件的地方,已经测量了岩石的膨胀和收缩或破裂速率(即沉淀物的产生和重量的损失),而很少有关于热和干燥行为的详细观察。描述了一种简单的半自动化程序,该程序能够在模拟的半日潮条件下测量不同材料类型(岩石和混凝土)的表面温度和解吸(蒸发水损失)。提出了一些初步结果,说明了所获得的数据类型,并与在英国的岩石平台上收集的温度数据进行了比较,以评估该程序足以代表现场条件的能力。

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