Part 3 Flashcards
(14 cards)
Sentiments form in horizontal layers called strata
Sedimentary rock
Formed when magma cools and solidifies
Igneous rock
Originally igneous, sedimentary or other that became buried deep in earth and subjected to high temperature and pressure
Metamorphic rock
A layer of rock is formed and then eroded. New sediment is then deposited on top of the existing layer to form a younger layer of rock. The time gap in the geological record is known as a…
Unconformity
Rock strata that have crumpled and buckled into wave like structures
Folds
Rock layers folded in the shape of an arc and sometimes trap oil and gas
Anticlines
Trough shaped configuration of folded rock layers
Synclines
When rocks break into two halves producing a fraction known as a…
Fault
To faults with movement that is primarily vertical
Normal and reverse fault
Faults with a combination of horizontal and vertical movement
Overthrust fault and growth faults
A long narrow block of crust between two faults that has sunk relative to the surrounding crust
Graben
A long, narrow block of crust between two faults that has risen relative to the surrounding crust
Horst
A belt of rock is known as a
Formation
Two basic structures that form when rocks deform
Folds and faults