B X S R H A 2006
What is the geological history of the given map
The given map consists of various layers folded and faulted. The area has several layers folded and faulted.
To get the geological history we need to know the sequential order of events from oldest to youngest.
We need to know some geological principles to reconstruct geological history.
Order of superposition- It states that in a geologic sequence the older is bed always deposited first and younger bed deposited last. So older beds are always at the found bottom of a sequence and younger beds are always found at the top of the sequence.
Laws of crosscutting- Any igneous intrusion or dike intruded into the country rock is younger than the country rocks.
Laws of original horizontality- It states that a sedimentary layer is always deposited in a horizontal manner.
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