What are the benefits of dinosaur eggs?

1, fossils can determine the relative age of strata and divide the correlation strata; Provide environmental signs to determine and restore the paleosedimentary environment; Understand the role in diagenesis and mineralization. In the process of the development and evolution of the earth, many kinds of fossils have changed from old to new and evolved rapidly, forming distinctive groups. These paleontological groups can form different fossil groups or fossil assemblages in different geological periods, which has become an important basis for determining stratigraphic age and dividing strata.

2. Fossils can provide environmental signs and judge and restore the paleosedimentary environment. Such as planktonic foraminifera, radiolaria and conodonts. , only in marine sediments; For example, in the Mesozoic and Cenozoic Charophyta, some ostracods and diatoms only appear in terrestrial freshwater deposits; Some benthic foraminifera, ostracods and a few charophytes, brackish water deposits in coastal marginal environment, etc. During their existence, these different types of paleontology have certain requirements on the temperature, salinity, depth, turbidity and sedimentary bottom of water areas. Through the paleoecological analysis of various fossil communities or fossil assemblages, combined with the study of paleosedimentology, we can judge and restore the paleosedimentary environment by inferring ancient times from now on. For example, it has been found that Bohai Bay, Yellow Sea, East China Sea and South China Sea were formed in Cenozoic. In Tertiary, due to the influence of arid climate and transgression, a large number of saline and brackish water deposits were formed in the eastern coastal areas of China, which created conditions for the formation of rich oil resources. These are all the research results of micro-paleontology.

3. During diagenesis and mineralization, organisms (including micro-paleontology) can not only form fuel minerals, such as coal, oil, natural gas and oil shale, but also form some metal sulfide deposits, phosphorite and diatomite, as well as natural sulfur, various iron ores, manganese ores, uranium ores, bauxite and other minerals. Many living things are rich in mineral elements. For example, the content of gold in some marine organisms is 830 times that of seawater, 3700 times that of copper and 267000 times that of aluminum. Although other microorganisms can't mineralize, they can indicate the prospecting direction or determine the location of ore-bearing beds.