Answer:
tensional
Explanation:
Tensional stress, meaning rocks pulling apart from each other, creates a normal fault.
Continental shift was a theory on how earths continents move around the world
Answer:A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata.
Cuba,Dominican republic and Puerto Rico
True
Explanation:
An unconformity between two parallel layers of sedimentary rocks is classified as a disconformity.
A disconformity is a type of unconformity.
An unconformity is a significant break in the stratigraphic record of a formation. There are different types of unconformity;
- A disconformity is an unconformity between parallel layers of sedimentary rocks.
- A non-conformity is an unconformity between two different rock types.
- A para-conformity is an unconformity between two parallels layers marked by differences in fossil age.
- An angular unconformity is an unconformity between two layers that are at an angle to one another.
The main cause of unconformity is usually non-deposition and erosion.
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Sedimentary rocks brainly.com/question/9131992
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