Uriconianとは 意味・読み方・使い方

The Uriconian rocks of Shropshire (Wrekin Terrane) are thought to be potentially related to the Longmyndian Supergroup of the Stretton Hills, Shropshire, United Kingdom. Current geological profiling of the terranes suggests that the Uriconian rocks are of Precambrian age. The Uriconian Rocks outcrop to the southeast of the Long Mynd area of the Welsh Borderlands and beyond the Church Stretton Fault which trends northeast-southwest across the area. The Stretton Hills are comprised primarily of arenaceous beds subscribed to the Longmyndian Supergroup. The Longmyndian are a c.6 km thick group of volcaniclastic and bentonitic sediment horizons. The Uriconian have long thought to be older than the Longmyndian and generally outcrop to the southeast of the latter within northeast-southwest trending lineaments suggesting basement influence for the regional structure.