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The dalle is thought to have been partially unearthed for the first time in June 1941, during road works on what is now the D 900A. In 1979, before the establishment of the Géologique de Haute-Provence
National Nature Reserve, earthworks began to uncover the slab and unearthed 600 ammonites over 160
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Until 1994 only 200 square metres (2,200 sq ft) were visible. After this date, the Géologique de Haute-Provence
National Nature Reserve took the task of clearing an additional 150 square metres (1,600 sq ft) to attain a total area of 350 square metres (3,800 sq ft).
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process. The good conservation of the shells give informations over the marine dynamism responsible for the deposit conditions : an hectic environment, like a beach or a coast, were the waves actions were strongly felt, with a tendency to break the shells, leading to fragmentary deposits,
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analysis, as well as the position of the shells, lead to the conclusion that the Dalle à ammonites was an accumulation facies : a large number of dead animals were carried by weak marine currents, towards their deposit site. Traces of
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The 160 square metres (1,700 sq ft) already unearthed in 1992 of the slab were molded in 1992 by the geological reserve for the city of
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in Japan (who desired to buy the original). The mold was realized in 30 parts, which were sent and reassembled in Japan.
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The deposit thickness is estimated to be 20 centimetres (7.9 in), deposited over a 100,000-year period.
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Livret-Guide d'excursion géologique, congrès de l'Association des paléontologues français, 3–5 Mai 2007
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geological facies. It bears the traces of the oceanisation preceding the orogeny beginning.
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Ammonites: 1,553 photographies d'ammonites, un projet artistique d'Oscar Molina
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As well known as it is, the slab wasn't known until recently :
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fauna, such as scavenger worms, who thrived in this biotope.
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remains near the site only mentions numerous species of
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Géologique de Haute-Provence
National Nature Reserve
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762:Tourist attractions in Alpes-de-Haute-Provence
529:The Dalle à ammonites was created during the
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782:Fossiliferous stratigraphic units of Europe
567:The fossils aspect helps to understand the
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109:Learn how and when to remove this message
548:were erected in several phases, after a
408:, 90% of which belonging to the species
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473:square metres (1,700 sq ft).
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757:Geography of Alpes-de-Haute-Provence
725:Réserve géologique de Haute Provence
47:adding citations to reliable sources
708:"Analyse de Georges Henri Ducreux"
442:can also be found in the deposit.
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767:Geologic formations of France
586:carbonate compensation depth
640:Inclination, from the North
628:Inclination, from the South
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355:Dalle à ammonites (France)
306:Provence-Alpes-Côte d'Azur
600:can be attributed to the
411:Coroniceras multicostatum
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563:Paleontological analysis
393:road. It is part of the
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792:Alpes-de-Haute-Provence
379:Alpes-de-Haute-Provence
787:Paleontology in France
616:Fossil-bearing strata
497:An almost horizontal
210:Dalle à ammonites in
438:seashells and other
278:44.11944°N 6.23417°E
43:improve this article
509:, is located below
371:Dalle aux ammonites
274: /
130:Stratigraphic range
58:"Dalle à ammonites"
735:2009-02-06 at the
525:Geodynamic context
414:, dating from the
16:French fossil site
488:Geological aspect
367:Dalle à ammonites
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54:Find sources:
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32:This article
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598:bioturbation
593:tapophenosis
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320:Type section
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41:Please help
36:verification
33:
572:settled as
554:paleo-ocean
459:ichthyosaur
281: /
256:Coordinates
223:Fossil site
777:Sinemurian
751:Categories
694:References
581:lumachella
550:subduction
539:Dauphinois
499:Ammonoidea
465:and other
430:belemnites
426:Nautiloids
416:Sinemurian
135:Sinemurian
99:April 2022
69:newspapers
537:, in the
517:river in
463:ammonites
406:ammonites
383:ammonites
325:Named for
266:44°7′10″N
237:Lithology
229:Thickness
733:Archived
515:Conturby
507:Jurassic
503:Triassic
482:Kamaishi
467:molluscs
440:bivalves
329:Ammonite
269:6°14′3″E
250:Location
688:Details
676:Details
664:Details
652:Détails
602:benthic
535:Prealps
511:Fressac
505:or the
312:Country
242:Primary
83:scholar
575:faluns
557:Tethys
435:Pecten
391:Barles
315:France
303:
294:Region
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389:from
373:) at
232:20 cm
90:JSTOR
76:books
591:The
546:Alps
544:The
519:Gard
402:slab
400:The
369:(or
365:The
219:Type
140:PreꞒ
62:news
578:or
45:by
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190:Pg
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418:(
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195:N
185:K
180:J
175:T
170:P
165:C
160:D
155:S
150:O
145:Ꞓ
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87:·
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