- nonfossiliferous limestone
- 无化石石灰岩
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
Nubian Sandstone — refers to a variety of sedimentary rocks deposited on the Precambrian Basement in the eastern Sahara, north east Africa and Arabia. It consist of continental sandstones with thin beds of marine limestones, and marls. Nubian sandstone was… … Wikipedia
dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or … Universalium