U-Pb dating of late Cretaceous dinosaur eggs' dating in Nanxiong dinosaur egg fauna, Guangdong province

Abstract

The Nanxiong Basin is located at the junction of northern Guangdong and southwestern Jiangxi. It is an irregularly striped and semi-graben pan-shaped rift basin formed since the Late Cretaceous in NE-SW. Zhang fault depression red bed basin. This article comprehensively discusses and summarizes the regional geological background, geological genesis, tectonic-sedimentary evolution and red bed topography of the Nanxiong Basin. According to the relative age, make a comparison of the dinosaur egg fauna of the Cretaceous Basin in China reveals that four consecutive dinosaur egg assemblages have different geological ages, and the strata of the corresponding basins together provide a framework for explaining the continental redness of the Cretaceous. Through further research, it should be possible to establish a continuous Cretaceous dinosaur egg combination, including China's Early Cretaceous dinosaur eggs and Late Cretaceous dinosaur eggs.