甘肃酒泉下沟东和昌马剖面早白垩世地层柱状图

甘肃酒泉地区发育连续的下白垩统陆相沉积，并含有丰富的动、植物化石，是我国陆相白垩系研究的经典地区之一。然而该地区下白垩统古生物学和地层学研究进展缓慢，尚缺乏高精度的地层框架和古生物学综合研究。本次考察于2020年7月9日-11日对酒泉下沟东和昌马剖面下白垩统开展了详细的地质调查，采集了化石和岩石标本，进行生物地层学研究。本数据集包括：酒泉地区下沟东剖面早白垩世赤金堡组地层柱状图、拍摄的露头照片和代表性化石；昌马剖面下沟组地层柱状图和鸟化石富集层照片。

The Jiuquan area in Gansu Province preserves continuous Lower Cretaceous continental sedimentary deposits, which are rich in animal and plant fossils, making it one of the classic regions for terrestrial Cretaceous research in China. However, paleontological and stratigraphic studies on the Lower Cretaceous in this region have progressed slowly, and there is still a lack of high-precision stratigraphic framework and comprehensive paleontological research. This field expedition conducted detailed geological surveys on the Lower Cretaceous sections of Xiagoudong and Changma in Jiuquan from July 9 to 11, 2020, collected fossil and rock specimens, and carried out biostratigraphic research. This dataset includes: stratigraphic columns of the Early Cretaceous Chijinbao Formation in the Xiagoudong section of Jiuquan, outcrop photos and representative fossils; stratigraphic columns of the Xiagou Formation in the Changma section, and photos of bird fossil-rich horizons.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于甘肃酒泉地区早白垩世（约124-112百万年前）的地层研究，包含下沟东和昌马剖面的地层柱状图、露头照片及化石图像，以高精度TIFF格式提供，旨在支持古生物学和地层学综合研究，填补该区域陆相白垩系高精度地层框架的空白。