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Piégut-Pluviers Granodiorite
The Piégut-Pluviers Granodiorite is situated at the northwestern edge of the Variscan Massif Central in France. Its cooling age has been determined as 325 ± 14 million years BP (Upper Mississippian, Serpukhovian).
== Geographical situation ==
The Granodiorite was named after Piégut-Pluviers, a small town in the Arrondissement of Nontron in the northern Dordogne. Its outline is in the shape of an inverted comma pointing north with a nearly squarish main southern part turned into the NE-SW direction. The main body measures 15.5 kilometers in the NE-SW direction and 15 kilometers in the NW-SE direction and terminates in a tapering triangular section. This section continues farther north in an almost ten kilometer long appendix that is separated from the main body only by a very thin layer of migmatitic gneiss. The granodiorite takes up about 250 square kilometers in surface area. Its lowest point has an elevation of 135 meters above sea level along the western edge; the highest point in the northeast rises to about 375 meters above sea level. Geomorphologically the granodiorite forms a tabular slab, that is gently inclined to the southwest without any major topographic differences.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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