Karst and sinkholes at Nash Draw, southeastern New Mexico (USA) Andrea K. Goodbar, Geospatial Collaborative |
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Pre-glacial and post-glacial sinkholes in Silurian carbonate rocks in the James Bay lowland, Canada Wanfang Zhou, Hana Engineers & Consultants, LLC |
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Sinkholes and karst in Puerto Rico: Picturesque and problematic Patricia Kambesis, Western Kentucky University |
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Sinkholes developed in sandstone Ira D. Sasowsky, University of Akron |