WALTHER'S LAW OF CORRELATION OF FACIES Flashcards
1
Q
what us walther’s law of correlation of facies
A
the fact that there is lateral variation in facies leads to vertical variation in facies
2
Q
what is facies
A
overall characteristics of a rock unit that reflect its origin and differentiate the unit from others around it
3
Q
why are there lateral/vertical variations and what causes it
A
rocks dont stay the same
trans/regressions
4
Q
what is a transgression
A
landward movement of shoreline (sea levels increase)
5
Q
what is a regression
A
seaward movement of shorelines (sea levels decrease)
