The Nanxiong Formation (also known as Yuanpu Formation ) is a Late Cretaceous geologic formation in Guangdong Province . Dinosaur remains are among the fossils that have been recovered from the formation.
2-604: It consists of continental siliciclastic red beds , with fauna which similar to that of the Nemegt Formation . It has been dated to about 66.7 ± 0.3 million years ago . It is the lowest unit of the Nanxiong Basin, a small graben created during Mesozoic rifting. Buck et al. state that it overlies Jurassic granite basement , and is conformably overlain by the Shanghu Formation . Alternative stratigraphic schemes for
4-1041: The Nanxiong basin have been proposed, one of which refers to the Nanxiong succession as the Nanxiong Group , and dividing it into the Yuanfu, Zhutian and Zhenshui formations, and overlying the Albian to Turonian Changba Formation . Oviraptoridae indet. Tyrannosauridae indet. Theropoda indet. Siliciclastic Siliciclastic (or siliclastic ) rocks are clastic non carbonate sedimentary rocks that are composed primarily of silicate minerals, such as quartz or clay minerals . Siliciclastic rock types include mudrock , sandstone , and conglomerate . Siliciclastic sediments are silica-based sediments, lacking carbon compounds, which are formed from pre-existing rocks, by breakage, transportation and redeposition to form sedimentary rock. This article related to petrology
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