干旱区生态环境知识资源中心(Arid): Thermal anomaly and water origin in Weebubbie Cave, Nullarbor Karst Plain, Australia

Arid

DOI	10.1016/j.ejrh.2021.100793
	Thermal anomaly and water origin in Weebubbie Cave, Nullarbor Karst Plain, Australia
	Buzzacott, Peter; Skrzypek, Grzegorz
通讯作者	Skrzypek, G (corresponding author), Univ Western Australia, MO90,35 Stirling Highway, Crawley, WA 6009, Australia.
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2021
卷号	34
英文摘要	Study region: The Nullarbor is one of the largest contiguous karst plains in the world. Despite the absence of surface relict karst features and arid climate, the subterranean flooded cave systems are among the largest in the world. The cave waters are usually brackish and their temperatures vary over a large range (18.6-23.7 degrees C) suggesting potential input of warm groundwater to some of the caves. The studied Weebubbie Cave of total length similar to 500 m penetrates to similar to 140 m below ground and similar to 40 m below sea level. Study focus: Temperature loggers were deployed in the water at various depths and distances from the entry lake to detect potential warm water inputs in three different years. The stable hydrogen, oxygen, and carbon isotope compositions of water have been analysed to detect potential hydrochemical differences in inflowing water and to investigate the origin of the cave water. New hydrological insights for the region: The thermal irregularity at the Air Dome of Weebubbie with water temperatures 0.9 degrees C higher than in all other cave sections, confirms some heat transfer or an inflow of warmer water. The stable isotope results suggest the cave water originates from partially evaporated (up to <20 %) modern infrequent large precipitation events. Despite the relatively high salinity (23.3 mS cm(-1)) of the cave water, water hydrochemistry and stable isotope composition suggest that direct large ocean water contribution to the cave is unlikely.
英文关键词	Subterranean ecosystem Water temperature Stable isotopes Flooded cave Western Australia
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000635180700019
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368908
作者单位	[Buzzacott, Peter] Curtin Univ, Bentley, WA, Australia; [Skrzypek, Grzegorz] Univ Western Australia, West Australian Biogeochem Ctr, Sch Biol Sci, Crawley, WA, Australia
推荐引用方式 GB/T 7714	Buzzacott, Peter,Skrzypek, Grzegorz. Thermal anomaly and water origin in Weebubbie Cave, Nullarbor Karst Plain, Australia[J]. University of Western Australia,2021,34.
APA	Buzzacott, Peter,&Skrzypek, Grzegorz.(2021).Thermal anomaly and water origin in Weebubbie Cave, Nullarbor Karst Plain, Australia.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,34.
MLA	Buzzacott, Peter,et al."Thermal anomaly and water origin in Weebubbie Cave, Nullarbor Karst Plain, Australia".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 34(2021).