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--- correlation [20/03/2023 08:29] – mike_gss
+++ correlation [20/03/2023 08:29] (current) – mike_gss
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 Biozones are the primary tools of correlation. If the fossils used to define them have a short stratigraphic range and widespread distribution (see next section) then we can make a basic assumption:
-**//The same fossils found in two or more separated sections are contemporaneous (evolutions tells us this is so) which means the rocks they are found in are also contemporaneous.//**
+**//The same fossils found in two or more separated sections are contemporaneous (evolution tells us this is so) which means the rocks they are found in are also contemporaneous.//**
 This means we can correlate those sections using true (or very nearly true) timelines that are independent of variable features such as rock thickness and lithology (essential when dealing with sequence stratigraphy), and also we can construct relative timescales based on the order of biostratigraphic events in a basin or region.