摘要
Ⅰ. INTRODUCTIONThe study area is located at the northern mountains of Chaohu City in central Anhui Province. The Silurian system, consisting of the lower series Gaojiabian and the middle series Fentou formation with total thickness over 570 m, is parallelly unconformably overlain and underlain by Ordovician Maoshan formation and Silurian Wutong formation, respectively. The contourite or contour current deposit occurs at the lower Craojiabian formation.
