Physical Setting - Science Worksheet Page 9
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2833 The geologic cross section below shows rock layers that have not been overturned.
Unconformity
Fault
The fault is older than the
(1) slate
(3) unconformity
(2) marble
(4) shale
34 The pie graph below represents the composition, in percent by mass, of the chemical elements found in an
Earth layer.
Oxygen 46.1%
All others 0.9%
Potassium 2.1%
Magnesium 2.3%
Sodium 2.4%
Silicon 28.2%
Calcium 4.2%
Iron 5.6%
Aluminum 8.2%
The composition of which Earth layer is represented by the pie graph?
(1) crust
(3) troposphere
(2) outer core
(4) hydrosphere
35 The diagram below indicates physical changes that accompany the conversion of shale to gneiss.
Shale
Slate
Schist
Gneiss
Clastic texture
Slaty cleavage
Obvious foliation
Banding
Which geologic process is occurring to cause this conversion?
(1) sedimentary layering
(3) metamorphism
(2) intrusion of magma
(4) weathering
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[OVER]
P.S./E. Sci.–Aug. ’15
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