On the persistence of 鈥榳eathering鈥?/span>

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• 作者：Kevin Hall^a ; ^hall@unbc.ca ; Colin Thorn^b ; Paul Sumner^a
• 关键词：Weathering ; Climate ; Rock properties ; Rock decay ; Energy transfer
• 刊名：Geomorphology
• 出版年：2012
• 期刊代码：31_0169555x
• 类别：soc
• 出版时间：1 May, 2012
• 卷：149-150
• 期：Complete
• 页码：1-10
• 文件大小：529 K

摘要

The term 鈥榳eathering鈥?has been in use for a very long time but it has come to mean different things to different people and hence, as scientific short-hand, it no longer functions. Here we question the tenets underpinning the most common usage of the term and note that the climate-process linkage implicit to the term is often missing and amounts to misdirection. Rather than climate as the primary driver behind specific weathering processes, it is argued that rock properties constitute the dominant control. Further, a case is made for reconsideration of our present bipartite (mechanical/chemical) division of weathering processes and of the weathering processes currently deemed to be 鈥榯hose that occur鈥? As process studies become evermore reductionist in nature, so the functionality of the term comes more and more into question. The linkage between process and landform, the scaling-up attribute, is seen as a current weakness and one that will become more confusing as reductionist approaches continue. As a 鈥榳ay forward鈥?it is suggested that weathering, stripped of specific preconceived notions of specific processes, be envisaged as a function of energy transfer and be investigated in that light. Identification of new processes as well as restructuring of known processes, particularly when considering weathering on other planets, is a potential outcome of such an approach. With a process foundation rooted in energy transfer, 鈥榬ock decay鈥?provides a better umbrella term and liberates researchers from the inescapable conceptual baggage implicit to the term 鈥榳eathering鈥?