Pierres folles - 201Ma to 190Ma - Saint-Jean-des-Vignes - France
Posted by: Groundspeak Premium Member JMRetSB
N 45° 52.562 E 004° 40.525
31T E 630020 N 5081638
10 Ma reveal themselves. The fault of crazy stones is the result of a field movement due to the formation of the Alps /\ 10 Ma se révèlent. La faille de pierres-folles est le resultat d'un mouvement de terrain du à la formation des Alpes.
Waymark Code: WMVNKF
Location: Bourgogne-Franche-Comté, France
Date Posted: 05/09/2017
Published By:Groundspeak Premium Member T0SHEA
Views: 7

At the Oligocene, around 30 Ma, the alpine activity is amplified in the axis of the chain. In response to these constraints, the regions peripheral to the Alps (peri-Alpine regions, including the Beaujolais region) are subject to considerable distortion. The earth's crust breaks and whole sections of crust collapse. In connection with this phenomenon, on the western edge of this ditch, the Beaujolais geological series swings to the east. Simultaneously, or almost simultaneously with the tilting, many faults are formed and accompany these movements.
It is at this point that the fault of the geological path of the Folkstones is formed, exposing the different layers:
201 Ma to 199 Ma: Hettangien
199 Ma to 190 Ma: Sinemurian


A l'Oligocène, vers ­30 Ma, l'activité alpine s'amplifie dans l'axe de la chaîne. En réponse à ces contraintes, les régions périphériques aux Alpes (régions péri­alpines, dont la région beaujolaise) subissent à l'inverse une importante distension. La croûte terrestre se fracture et des pans entiers de croûte s'effondrent. En lien avec ce phénomène, sur le bord occidental de ce fossé, la série géologique beaujolaise bascule vers l'est. Simultanément, ou quasi simultanément au basculement, de nombreuses failles se forment et accompagnent ces mouvements.
C'est à ce moment­ là que se forme la faille du sentier géologique des Pierres Folles, mettant à jours les différentes couches:
201 Ma à 199 Ma : Hettangien
199 Ma à 190 Ma : Sinémurien
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Miss Tinguett visited Pierres folles - 201Ma to 190Ma - Saint-Jean-des-Vignes - France 02/13/2020 Miss Tinguett visited it
JMRetSB visited Pierres folles - 201Ma to 190Ma - Saint-Jean-des-Vignes - France 04/16/2012 JMRetSB visited it

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