Kerrera is an island in the Scottish Inner Hebrides, close to the town of Oban. In 2016 it had a population of 45, divided into two communities in the north and south of the island.
The oldest bedrock of Kerrera is black slate ascribed to the Easdale Subgroup of the Dalradian Argyll Group. Overlying this across half of the island are conglomeratic sandstones and basalt and augite-andesite lavas of early Devonian age, the former being the local representative of the Old Red Sandstone and the latter constituting part of the ‘Lorne Plateau Lavas’. Ripple marks and sun cracks are preserved in shale strata on the south coast, belying the subaerial environment in which deposition of these sediments took place. There are thin limestones within both the Easdale Slate Formation and the younger sandstones. All of these strata are cut by NW-SE aligned igneous dykes forming part of the North Britain Palaeogene Dyke Suite associated with early Palaeogene volcanism. A number of geological faults cut across Kerrera, the majority are aligned NE-SW.
Modern beach deposits and raised marine deposits of Holocene age are found around the island particularly on the north coast and along the Sound of Kerrera.
Source: Wikipedia.org
Copyright: Creative Commons 3.0
Argyll and Bute, United Kingdom
Discover the most beautiful and popular trails in the area, carefully bundled into appropriate selections.
Source: Prosthetic Head
Copyright: Creative Commons 4.0
Discover the most beautiful and popular attractions in the area, carefully bundled in appropriate selections.
Source: Prosthetic Head
Copyright: Creative Commons 4.0
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