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A Comparative Study Between The Karst Of Hoa Quang, Cao Bang Province, Vietnam And Tuscumbia, Alabama, U.S.A., Gheorghe M. Ponta, Nguyen Xuan Nam, Florentin Stoiciu, Ferenc L. Forray, Viorel Badalita, Lenuta J. Enache, Ioan A. Tudor
A Comparative Study Between The Karst Of Hoa Quang, Cao Bang Province, Vietnam And Tuscumbia, Alabama, U.S.A., Gheorghe M. Ponta, Nguyen Xuan Nam, Florentin Stoiciu, Ferenc L. Forray, Viorel Badalita, Lenuta J. Enache, Ioan A. Tudor
Sinkhole Conference 2015
Some of the most beautiful karst features created by the dissolution of limestones are residual hills with steep or vertical sides rising from a flat plain, known as tower karst. Tower karst to be developed requires a “mean annual temperature of minimum 170C to 180C and 1,000 to 1, 200 mm/m2 of annual rainfall (Jakucs, 1977). Two sites matching this criteria were selected: the karst of Hoa Quang District, Cao Bang Province, Vietnam, and Tuscumbia, Colbert County, Alabama, U.S.A. Preliminary observations regarding similarities and differences between these two sites are presented in this paper. The Hoa Quang karst area is …
Concepts For Geotechnical Investigation In Karst, Joseph A. Fischer, Joseph J. Fischer
Concepts For Geotechnical Investigation In Karst, Joseph A. Fischer, Joseph J. Fischer
Sinkhole Conference 2015
There seems to be a lack of recognition in the literature that addresses the variety of karst in the United States of America and some of its offshore territories. For example, there are the well-known solutioned carbonates of Florida and the Caribbean, but there are also the somewhat older, harder carbonates of St. Croix, U.S.V.I. Even Florida’s recently deposited karst varies from region to region. There are also the ancient, flat-lying carbonates of the interior craton that often have semi-horizontal cavities resulting from variations in ground water levels affecting bedding and the contorted rocks of the Appalachians with its apparently …