Dynamique de la construction topographique et toponymique à l'aven d'Orgnac. Ardèche, France

Abstract : In August 1935, Robert de Joly and his fellows discovered and explored the Orgnac pot hole. In the following weeks, a first survey (plan and section) is published in Spelunca and in La Nature with a toponymy applied to the most remarkable speleothems and chambers. From 1965, Jean Trébuchon and his team discovered new cave networks beyond the North chambers; they undertook a synthetic survey of the whole cave. Following this work, several partial surveys have still been published for tourism or science. This paper deals only with the chambers discovered in 1935, actually known as Orgnac I. StranGély, the existing surveys show many lakes, and no complete survey of this network exists. So, this paper complements the first survey synthesis of Orgnac I (Jaillet et al. in this issue of Collection EDYTEM). During this surveying, we had the opportunity of a reflexion about the ways of drawing a great show cave: some places are concealed or neglected (Upper chambers for instance), or the North chambers are systematically undersized. This survey has been completed by a cave toponymy study: why all the places have not been named? What were the criteria for the choice to name or not to name? What are the links between toponymy and tourist arrangement? The comparison between texts, pictures captions and names written on the surveys and between successive documents show the evolution of toponymy (some names appear or disappear) and the spatial slip of several names. Then, this paper crosses surveys, toponymy and historic texts about aven d'Orgnac to show the evolving perception of this major show cave for 75 years.
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Submitted on : Tuesday, September 18, 2012 - 4:00:10 PM
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Christophe Gauchon, Stéphane Jaillet, Françoise Prud'Homme. Dynamique de la construction topographique et toponymique à l'aven d'Orgnac. Ardèche, France. Coordinateurs : Jean Jacques Delannoy, Stephane Jaillet, Benjamin Sadier. Karts, paysages et préhistoire, Collection Edytem, p.157-176, 2012. ⟨halsde-00733415⟩

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