Rock Formations - Boulder, Piegut-Pluviers Granodiorite, Sigiriya, Stone Run, Bugle Rock, List of Rock Formations, Indian Head Rock (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 52. Chapters: Boulder, Piegut-Pluviers Granodiorite, Sigiriya, Stone run, Bugle Rock, List of rock formations, Indian Head Rock, Belogradchik Rocks, Knysna, Runamo, Calanque, Monolith, avolja Varo, Hoodoo, Balancing rock, Balancing Rocks, Devil's Slide, Mushroom rocks, Gilbert Hill, Blockfield, Shilin, Baiheliang, Pobiti Kamani, Pitt's Head, Merensky Reef, Felsenmeer, Mont Puget, The Rock, Zlatnite Mostove, List of rock formations in Oceania, Tessellated pavement, Amah Rock, Raouche, Lesko Stone, Rock of Monaco, Cerro de Arcos, Precarious boulder, Golyamata Gramada, Mukurob, Chimney Rock, Sphinx, Dimbulagala, Pulhamite, The Stone Mushrooms, Geofact, Coffee rock, The Ring, Soroti Rock, Moso's Footprint. Excerpt: The Piegut-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). Plagioclase-bearing paragneiss south of Nontron with big porphyroblasts - country rocks of the granodioriteThe Granodiorite was named after Piegut-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. Geom...