Hydrogeologic and topographic controls on evolution of karst features in Illinois’ sinkhole plain

Citation

Material Information

Title:
Hydrogeologic and topographic controls on evolution of karst features in Illinois’ sinkhole plain
Series Title:
Carbonates and Evaporites
Creator:
Panno, Sammuel V.
Kelly, Walton R.
Angel, Julie C.
Luman, Donald E.
Publisher:
Springer
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Cover-Collapse Sinkhole ( local )
Cave Formation ( local )
Solution-Enlarged Crevices ( local )
Erosion ( local )
Genre:
serial ( sobekcm )

Notes

Abstract:
In the sinkhole plain of southwestern Illinois, the size and morphology of cover-collapse sinkholes can be used as an indicator of the size of the associated underlying crevice/conduit system. Sinkholes that lead to relatively small crevices and small conduit systems (sinkhole volumes >103 m3, but <105 m3) typically are found in areas with relatively high water tables and, based on storage capacity of conduits and secondary porosity of adjacent bedrock, are incapable of accepting large, rapidly inflowing volumes of surface-water runoff without backflooding. Once flooded, sinkholes become low-energy environments and sites of deposition of fine sediments; consequently, their growth potential (via erosion by runoff within and at the margins of the sinkhole) is limited. Conversely, in those areas where sinkholes lead to relatively large, branchwork-type cave systems, water tables are typically deeper and the storage capacities of the cave system and adjacent bedrock can be one or more orders of magnitude greater. Because these large cave systems can accept greater volumes of rapidly inflowing runoff without backflooding, the sinkholes associated with large cave systems typically become sites of extensive erosion. The aerial extent of a sinkhole draining to large cave systems may continue to increase and incorporate other sinkholes within its drainage area, thereby creating large, compound sinkholes up to 30 ha in area. These sinkholes can have direct or indirect connections to cave passages and have volumes that can be as small as 104 m3 and as large as 106 m3. Beneath the glacial till and loess cover, and in the vicinity of the largest cover-collapse sinkholes, irregularities in bedrock topography appear to have had an effect on the location of the initiation of large caves in the sinkhole plain. The coincidence of bedrock depressions and swales in close proximity to the initiation point of the large caves suggests that focused recharge to fractures leading to bedding-plane partings in bedrock played a major role in
Original Version:
Carbonates and Evaporites, Vol. 28 (2013-03-09).

Record Information

Source Institution:
University of South Florida Library
Holding Location:
University of South Florida
Rights Management:
This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.

USFLDC Membership

Aggregations:
University of South Florida
Karst Information Portal

Postcard Information

Format:
serial

printinsert_linkshareget_appmore_horiz

Download Options

close

No images or PDF downloads are available for this resource.


Cite this item close

APA

Cras ut cursus ante, a fringilla nunc. Mauris lorem nunc, cursus sit amet enim ac, vehicula vestibulum mi. Mauris viverra nisl vel enim faucibus porta. Praesent sit amet ornare diam, non finibus nulla.

MLA

Cras efficitur magna et sapien varius, luctus ullamcorper dolor convallis. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce sit amet justo ut erat laoreet congue sed a ante.

CHICAGO

Phasellus ornare in augue eu imperdiet. Donec malesuada sapien ante, at vehicula orci tempor molestie. Proin vitae urna elit. Pellentesque vitae nisi et diam euismod malesuada aliquet non erat.

WIKIPEDIA

Nunc fringilla dolor ut dictum placerat. Proin ac neque rutrum, consectetur ligula id, laoreet ligula. Nulla lorem massa, consectetur vitae consequat in, lobortis at dolor. Nunc sed leo odio.