This 65.5-million-year-old layer of Earth separates fossils of the Cretaceous period from those of the Tertiary period.
这个有着6550万年历史的地层分离了白垩纪的化石和第三纪的化石。
2
Weak cemented fine quicksand layer deposited at the Tertiary Period and Jurassic Period is widely distributed in China's northeast and southwest regions.
第三纪和晚侏罗纪时期沉积的弱胶结粉细砂层在我国东北、南地区有广泛的分布。
3
Tertiary is the target layer for exploring in-situ leachable uranium deposit in Shebotu area, southwest Songliao Basin.