earth science module 1
rocks can form in all of the following ways except
by the process of accumulation on the earth's surface
The rock texture crystalline forms in _____.
NOT low temperature environments at or near the Earth's surface NOT low temperature environments with interlocking minerals
In the illustration above, the following are visible:
ash, cloud, and lava
oceanic crust is primarily made of the rock ____ while continental crust is primarily made of the rock ____.
basalt, granite
the stratigraphic principle that states a younger rock or feature can cut across any older rock or feature is
cross-cutting relationships
which of the following is an example of a trace fossil?
dinosaur tracks
laboratory created diamonds are also considered minerals
false
an explanation that is developed to explain observations and that allows testing is a/an
hypothesis
the stratigraphic principle states a younger sediment or rock can contain pieces of an older rock is___
inclusions
a mineral is defined as natural, solid, and ____ with a specific chemical composition and ordered internal structure
inorganic
Dating rocks using the decay of radioactive isotopes is
isotopic or radiometric dating
a ____ delineates the change from both the Paleozoic era to the mesozoic era and the mesozoic era to the Cenozoic era in the geologic time scale
mass extinction
Minerals that are composed of only one element, such as diamond, are called
native elements
Cleavage is the tendency of a mineral to break along one or more sets of parallels planes
true
Uniformitarianism can be stated as "the present is the key to the past"
true
in general an unconformity is buried erosional surface represents a large gap in geologic time within a rock or stratigraphic sequence
true
liquid mercury is not considered a mineral
true
relative dating does not depend on established a specific date
true
rocks can also form from precipitation out of a solution such as at hydrothermal vents
true
in earths history, which of the following came first?
Paleozoic era
