甘肃金塔及其附近早白垩世介形类

报道了首次发现于花海－金塔盆地花海凹陷花探９井、湖西新村、阿拉善左旗早白垩世介形类化石。根据它们的组合面貌及其在国内外分布的主要层位，认为：湖西新村原划归为上侏罗统并含有丰富介形化石的这套地层应属下白垩统；花探９井和阿拉善左旗塔塔水沟含化石地层的时代应为早白垩世。这些新的研究成果为建立该地区中生代地层层序奠定了基础，特别是对认识花海－金塔盆地的形成与演化，及进一步的油气勘探提供了新的资料

Early Cretaceous fossil Ostracods from Jinta, Gansu and its nearby regions

It is reported for the first time that the fossil Ostracods were collected from the Hua exploratory well 9 in the Huahai Depression of the Huahai Jinta Basin, Huxi New Village and Alxa Zuoqi. According to the characteristics of the fossil assemblages as well as the known geological ranges of their main components both at home and abroad, the strata containing abundand Ostracods are referable to the Early Cretaceous in age. This study provides micropaleontological evidence for the subdivision and correlation of the Early Cretaceous stratigraphy in these areas and some new information for understanding the formation and evolution of the Huahai Jinta Basin, especially for going further to find oil and gas resources.