古代化石的信息（Ancient fossil information）.docVIP

古代化石的信息（Ancient fossil information） (1) the relative age and stratigraphic division and correlation of fossils can determine the formation; provide environmental signs and determination and the restoration of the ancient sedimentary environment; understand the role in diagenesis and mineralization. In the development and evolution of the earth, fossils and evolution of many categories of old and new characteristics of different groups formed rapidly. The ancient biology of these taxa in different sedimentary geological period, can form different fossils or fossil assemblages, become an important basis for determining the stratigraphic age and stratigraphic division. Fossils can provide environmental signs, judgment and the restoration of the ancient sedimentary environment, the establishment of relationship between ancient and modern organisms. Such as planktonic foraminifera, radiolarians and conodonts etc. only in marine sediments; such as, the new generation of CHAROPHYTES, ostracods and some diatoms only in continental freshwater sediments; some benthic foraminifera and a few CHAROPHYTES and ostracods, produced in the coastal edge environment of brackish water deposition. During these different classes of Paleontology in its survival, for water temperature, depth, salinity, turbidity and sediment etc. have certain requirements. Through the analysis of all kinds of ancient ecological communities or fossil fossil assemblage and combined with the study of ancient sedimentology, with this on the estimation method of ancient law, can be judged and the restoration of the ancient sedimentary environment. As I have been identified in Bohai Bay, the Yellow Sea, East China Sea and South China Sea are formed in the Cenozoic in the third century, due to the impact of dry climate and large saltwater transgression, the formation of Chinas eastern coastal areas, brackish water deposition, the environment for the formation of rich oil resources to create a. This is the use of t