The origin and significance of mushroom stones in lowland karst regions
Abstract'Mushroom stones', or 'wave stones', are limestone erratics or protruding bedrock that shows signs of erosion or dissolution suggestive of prolonged exposure to standing water. Fifty-three stones in the central lowlands of Ireland were recorded in a systematic fashion, with accurate lip-height measurements taken for more than half the stones using GPS (Global Positioning System) equipment. The heights of their erosional lips are discussed with reference to estimated pre-bog water tables, lake fluctuations and other possible explanations for this phenomenon. The results suggest that the erosion of the stones now found in the bogs of County Offaly cannot be attributed to erosion by a single large lake as previously speculated, whereas the notching of stones in and around wetlands and lakes in Roscommon and Clare is likely to be due largely to flooding and winter water levels.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by University College Dublin in its series Open Access publications from University College Dublin with number urn:hdl:10197/828.
Date of creation: 2002
Date of revision:
Publication status: Published in Irish Journal of Earth Sciences (2002) v.20, p.33-40
Contact details of provider:
Web page: http://www.ucd.ie
Formations (Geology)--Ireland; Limestone--Ireland; Limestone--Erosion--Ireland;
You can help add them by filling out this form.
reading list or among the top items on IDEAS.Access and download statisticsgeneral information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Joseph Greene).
If references are entirely missing, you can add them using this form.