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Conglomerate with well rounded clasts from Faringdon, UK. A good example of the lithotype as opposed to a Breccia which would contain predominantly angular to sub-angular clasts.
Conglomerates are coarse grained clastic sedimentary rocks composed of a substantial proportion of rounded to well-rounded gravel clasts set in a matrix. They were laid down in a high energy environment, either fluvial, alluvial or shallow marine. The roundness of the clasts can be an indicator of the transport distance or the action of sustained erosion. This particular example is from the Cretaceous Faringdon Sponge Gravel Formation which would suggest it is shallow marine in origin. Specimens are supplied in labelled card trays.
Weight | 120 g |
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Specimen Size | 2" x 2", 3" x 2", 4" x 3" |
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