老第三系

老第三系（E）是河南平原地热开发基底，新第三系（N）是主要热储层和开采层。

Eogene System is the fundus of terrestrial heat exploitation and Neogene System is the principal heat reservoir and exploitation bed of Henan plain .

建议在梨树镇坳陷下白垩统找气，在平阳镇坳陷老第三系找油。

The prospecting for gas in Lishuzhen depression and oil in Pingyangzhen depression is suggested .

辽河盆地老第三系深层碎屑岩储层沉积相

Sedimentary facies of deep burial strata of the Palaeogene clastic reservoirs in the Liaohe Basin

泌阳断陷沉积了巨厚的老第三系稳定的湖相水下沉积，深凹区是主要的生油区，地层极平缓。

The layers in the deep depression which was the main oil source area are almost horizontal .

惠民凹陷西部老第三系沙河街组三段三角洲体系及砂岩体沉积特征和演化规律

The Evolution of Palaeogene Delta Depositional Systems and Sand Bodies in the Western Huimin Depression , Shandong Province

上覆老第三系沙三段与沙四段烃源岩厚度大，分布稳定，生油潜力大，因此，区内潜山具备了良好的油气成藏条件；

Because the source rock is thick and spreading steadily , there exists great potential for hydrocarbon generation .

川滇西部地区钾质煌斑岩带产于扬子板块西缘与三江褶皱带之间的过渡地带，侵位于老第三系地层。

The potash lamprophyre belt of west Sichuan-Yunnan is located at the transitional zone between west margin of Yangtze platform and Sanjiang fold belt .

辽河盆地老第三系深层主要发育扇三角洲、湖底扇和泛滥平原沉积体系。

The fan-deltas , sublacustrine fans and flood plains constitute the main depositional systems of the Palaeogene of deep burial strata ( below 3500m ) in the Liaohe Basin .

板桥凹陷位于黄骅坳陷中北部，老第三系沙河街组沙三段是主要生储油岩系。

The Banqiao sag lies in the middle northern part of the Huanghua Depression , and the third member of Shahejie Formation is the main oil generating strata and reservoirs in the area .