The Lingshandao Formation: A New Lithostratigraphic Unit of the Early Cretaceous in Qingdao, Shandong, China
摘要
A new lithostratigraphic unit, the Lingshandao Formation, is established to represent a set of Early Cretaceous marine deposits in Lingshan Island, Qingdao, Shandong Province, ChinaBiostratigraphic data and detrital zircon ages indicate that the Lingshandao Formation is most likely early-middle Early Cretaceous in age, although the possibility cannot be excluded that the lower Lingshandao Formation may be Late Jurassic in age. The overlying rhyolite is considered to roughly belong to the lower part of the Lower Cretaceous Qingshan Group.