Download or read book Geology of the Country Around Montgomery and the Ordovician Rocks of the Shelve Area written by Richard Cave and published by . This book was released on 2001 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This memoir describes the geology of part of the Welsh Borderland. Precambrian and Ordovician rocks of the Shelve crop out in the north but Silurian rocks underlie most of the district, providing an insight into the development and infill of the Lower Palaeozoic Welsh Basin. The district is notable for a number of earthquakes, and a brief history of recent seismic events is included.