Cards in this guide (12)
According to the principle of cross-cutting relationships an intrusive rock body is
Younger than the rock it intrudes into
What are eras divided into
The constituent time segments are epochs and periods, which are
further divided into ages.
What determines the type of fossil that is formed
- the conditions under which the organism died and how it was buried
What force causes most of the erosion in desert areas
A break that separates older metamorphic rocks form younger sedimentary rocks immediately above them is a type of unconformity called an
Used to date fossils in rocks to give an approximate age
Radiometric dating does not usually work with sedimentary rocks because they
Form from many older rock particles.
What is the name of the doctrine that states the physical chemical and biological laws that operate today have also operated in the geologic past
Geologists have divided earths history in the manaeable units that are represented by the
Which type of geologic event has to occur to create an angular unconformity
The folding or tilting of rocks, followed by renewed deposition,
has to occur to create an angular unconformity.
Which is a true statement about the process of accretion
It enlarges continental landmasses and forms mountains along the
edges of continents.
The boundaries of history of eras are marked by great worldwide changes in
The boundaries of history of eras are marked by great worldwide
changes in continental coastline