the oldest rocks found in a syncline are found in the interiors of tectonic plates.
where are the oldest rocks found in a syncline?
interiors of tectonic plates
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the geology of dorset is varied; most of the different rocks found in the wider south-east of england outcrop within its boundaries. the geological structure of the county is easily visible in places, making dorset a suitable place for geological study. the rocks outcropping in dorset are all of sedimentary origin, and were formed in the jurassic, cretaceous and paleogene periods of geological history. the oldest rocks are found in the west and north of the county, the youngest in the east. the south-east of the county occupies the western end of the hampshire basin, an asymmetric syncline which underlies a large part of central southern england.
geography of dorset