Unconformity
Explanation:
The gap between the lower and upper limestone layer can be explained by the occurrence of an unconformity.
An unconformity is a break in stratigraphic record usually marked a prolong period of non-deposition or erosion.
A major break of several millions of years is called a hiatus. A minor break is a diastem.
- During a period of non-deposition, no materials are brought into the basin.
- This can last for several years until deposition resumes again.
- Such a prolonged period of non-deposition causes a break in stratigraphic record.
- At other times, stratigraphic records can be lost to erosion.
- Erosion entails the washing away of the earth.
- This will ultimately cause the loss of records between two strata till deposition resumes.
- In most strata, periods of non-deposition and erosion usually takes place hand in hand.
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It's false because no one has found out officialy
No the essential once are proteins
Answer:
No ocean is present 5 million years ago.
Explanation:
There is no ocean or sea in this area 5 million years ago because the land is present where these fossils live but with the passage of time the geography of that place changes and the ocean covered the area and these fossils remain below the ocean inside the layer of land. So we can conclude from the presence of these fossils that there is no ocean present in these regions 5 million years ago .