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Featured articles from Cave & Karst Science Journals
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Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method, Sanna, Laura; De Waele, Jo; Calaforra, José Maria; Forti, Paolo
The use of damaged speleothems and in situ fault displacement monitoring to characterise active tectonic structures: an example from Zapadni Cave, Czech Republic , Briestensky, Milos; Stemberk, Josef; Rowberry, Matt D.;
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Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria), Briestensky, Milos; Rowberry, Matt; Stemberk, Josef; Stefanov, Petar; Vozar, Jozef; Sebela, Stanka; Petro, Lubomir; Bella, Pavel; Gaal, Ludovit; Ormukov, Cholponbek;
77 RUE CLAUDE BERNARD, 75005 PARIS, FRANCE
Bulletin de La Societe Geologique de France, 1991, Vol 162, Issue 3, p. 585-594
TRAVERTINES - CARBONATE ACCUMULATIONS CONNECTED TO KARST SYSTEMS, SEDIMENTARY SEQUENCES AND QUATERNARY PALEOENVIRONMENTS
Magnin F. , Guendon J. L. , Vaudour J. , Martin P. ,
Abstract:
In the valleys of southeastern France, below karst massifs, river deposits with travertines show vertical sedimentary sequences always similar, with, from bottom to top: gravels, silts, chalks, travertines s.s. (stromatolitic encrustations with laminated facies), travertinous sand, silts. The study of flora and fauna fossilized by these formations shows a good correlation between the maximum of carbonate deposition (travertinous facies s.s.) and the optimum of vegetation development (forest). And finally, behind calcareous dams edified by travertine, paludal and lacustrine fields are environments developed trapping diversified sediments (clays, peats, silts,...). Then, dam and lake are forming a unit that we can call a 'travertine system'
In the valleys of southeastern France, below karst massifs, river deposits with travertines show vertical sedimentary sequences always similar, with, from bottom to top: gravels, silts, chalks, travertines s.s. (stromatolitic encrustations with laminated facies), travertinous sand, silts. The study of flora and fauna fossilized by these formations shows a good correlation between the maximum of carbonate deposition (travertinous facies s.s.) and the optimum of vegetation development (forest). And finally, behind calcareous dams edified by travertine, paludal and lacustrine fields are environments developed trapping diversified sediments (clays, peats, silts,...). Then, dam and lake are forming a unit that we can call a 'travertine system'
Keywords: accumulation, carbonate, carbonate rocks, chalk, clay, continental sedimentation, correlation, dam, datings (c-14-th-230/u-234), deposit, deposition, deposits, environment, environments, facies, fauna, field, flora, forest, france, holocene, karst, karst system, karst systems, karsts, lacustrine, lake, massif, mollusca, palaeonenvironments, paleobotany, paleoenvironment, peat, pleistocene, quaternary, river, sand, sediment, sedimentary, sediments, sequence, sequences, south-eastern france, system, systems, time, times, travertine, travertines, valley, vegetation,