Biostratigraphy is the branch of stratigraphy which focuses on correlating and assigning relative ages of rock strata by using the fossil assemblages contained within them. Fossils within these strata are useful because sediments of the same age can look completely different, due to local variations in the sedimentary environment. For example, one section might have been made up of clays and marls , while another has more chalky limestones. However, if the fossil species recorded are similar, the two sediments are likely to have been laid down around the same time.
Ways of dating fossils - Association of Drainage Authorities
I believe the answer is a. Radiometric dating give the absolute age. Indexing by Fossils gives relative age. The answers A, by the way, if you open the test on your parents account by pressing preview test, it gives you all of the answers Connexus.
Which statement is correct about carbon dating and index fossils?
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The Age of Dinosaurs was so many millions of years ago that it is very difficult to date exactly. Scientists use two kinds of dating techniques to work out the age of rocks and fossils. The first method is called relative dating. This considers the positions of the different rocks in sequence in relation to each other and the different types of fossil that are found in them. The second method is called absolute dating and is done by analysing the amount of radioactive decay in the minerals of the rocks.
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Comments (5)
I'm joining. And I came across this. Let's discuss this problem.
Everything goes like oil.
is understood in two ways as follows
Valuable information
This variant is not close to me. Can the variants still exist?