Base level rise and per ascensum model of speleogenesis (PAMS). Interpretation of deep phreatic karsts, vauclusian springs and chimney-shafts-Reference-Cited by-同舟云学术

Base level rise and per ascensum model of speleogenesis (PAMS). Interpretation of deep phreatic karsts, vauclusian springs and chimney-shafts

Published:2011-03-01 Issue:2 Volume:182 Page:87-93
ISSN:1777-5817
Container-title:Bulletin de la Société Géologique de France
language:en
Short-container-title:

Author:

Mocochain Ludovic¹²,Audra Philippe³,Bigot Jean-Yves⁴

Affiliation:

1. Laboratoire de Géologie, École normale supérieure (CNRS URA 1316), 24 rue Lhomond, 752031 Paris cedex 5

2. UPMC Université Paris 06 (UMR 7193) ISTEP, 75005, Paris, France, ludomocochain@gmail.com

3. Polytech’Nice-Sophia, Engineering School of Nice – Sophia Antipolis University, 1645 route des Lucioles, 06410 Biot, France, audra@unice.fr

4. French Association of Karstology catherine.arnoux@club-internet.fr

Abstract

Abstract In Mediterranean karsts, the Messinian salinity crisis induced first a deepening of the karst systems, then a flooding after the Pliocene transgression, and finally a reorganization of the drains after this base level rise. This reorganization mainly corresponds to the development of phreatic lifts: the chimney-shafts and the vauclusian springs. Such a per ascensum speleogenesis appears with a base level rise, which is caused by eustatism, by fluvial aggradation or valley infilling, or by continental subsidence. Consequently, we explain the origin of most of the deep phreatic cave systems (which are not hypogenic) by a base level rise, which flooded the deep karst, producing phreatic lifts connected to vauclusian springs.

Publisher

EDP Sciences

Subject

Geology

Link

https://pubs.geoscienceworld.org/sgf/bsgf/article-pdf/182/2/87/2968857/87.pdf

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