干旱区生态环境知识资源中心(Arid): Fire-induced rock spalling as a mechanism of weathering responsible for flared slope and inselberg development

Arid

DOI	10.1038/s41467-021-22451-2
	Fire-induced rock spalling as a mechanism of weathering responsible for flared slope and inselberg development
	Buckman, Solomon; Morris, Rowena H.; Bourman, Robert P.
通讯作者	Buckman, S (corresponding author), Univ Wollongong, Sch Earth Atmospher & Life Sci, GeoQuest Res Ctr, Wollongong, NSW, Australia.
来源期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
出版年	2021
卷号	12 期号:1
英文摘要	Inselbergs, such as Uluru in central Australia, are iconic landscape features of semi-arid and deeply denuded continental interiors. These islands of rock are commonly skirted by steep, overhanging cliffs (flared slopes) at ground level. The weathering processes responsible for formation of flared slopes and steep-sided inselbergs in flat, planated landscapes are enigmatic. One model emphasizes sub-surface weathering followed by denudation and excavation of saprolite to expose the unweathered bedrock while other models advocate slope development under subaerial conditions at ground level. We present a new hypothesis that identifies wildfire as a primary agent of flared slope development via fire-induced rock spalling around the periphery of inselbergs. Widespread fire-spalling following the 2019-2020 Australian fires illustrates that this is a common form of physical weathering in fire-prone environments but its effects are particularly evident in semi-arid regions where lateral fire-spalling dominates over fluvial and chemical weathering to create flared slopes and steep-sided inselbergs. Fire is an important mechanism of physical weathering responsible for the formation of overhanging flared slopes around the margins of steep-sided inselbergs. Fire-spalling erodes landscapes laterally rather than vertically and produces significant volumes of new sediment.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000640906500004
WOS关键词	HUMAN OCCUPATION ; AUSTRALIA ; EROSION ; EXPOSURE ; WILDFIRE ; RATES ; LUMINESCENCE ; DENUDATION ; VALLEY ; MODEL
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351194
作者单位	[Buckman, Solomon; Morris, Rowena H.; Bourman, Robert P.] Univ Wollongong, Sch Earth Atmospher & Life Sci, GeoQuest Res Ctr, Wollongong, NSW, Australia
推荐引用方式 GB/T 7714	Buckman, Solomon,Morris, Rowena H.,Bourman, Robert P.. Fire-induced rock spalling as a mechanism of weathering responsible for flared slope and inselberg development[J],2021,12(1).
APA	Buckman, Solomon,Morris, Rowena H.,&Bourman, Robert P..(2021).Fire-induced rock spalling as a mechanism of weathering responsible for flared slope and inselberg development.NATURE COMMUNICATIONS,12(1).
MLA	Buckman, Solomon,et al."Fire-induced rock spalling as a mechanism of weathering responsible for flared slope and inselberg development".NATURE COMMUNICATIONS 12.1(2021).