WorksheetsBowen's Reaction Series
Total questions: 20
Worksheet time: 10mins
Norman Bowen was a geoscientist from
Great Britain
United States
Canada
Germany
The Shire
Minerals that crystallize at higher temperatures tend to be low in
Iron
Calcium
Silicon
Magnesium
Minerals that crystallize at lower temperatures tend to be low in
Iron
Potassium
Silicon
Oxygen
The mineral that melts first as rock heats up would be
Calcium Plagioclase
Potassium Feldspar
Sodium Plagioclase
Biotite
Which of the following would crystallize first as magma cools.
Pyroxene
Quartz
Amphibole
Sodium Plagioclase
Mafic rocks are composed of mostly
silicon and calcium
sodium and magnesium
potassium and aluminum
iron and magnesium
The lighter in color the igneous rock, the higher the amount of
iron
silica
calcium
sodium
Magmas that form at high temperatures and pressures tend to be
high in viscosity and low in silica
low in viscosity and high in silica
high in viscosity and high in silica
low in viscosity and low in silica
Magmas that form at lower temperatures and pressures tend to be
High in silica and high in viscosity
Low in silica and low in viscosity
High in silica and low in viscosity
Low in silica and high in viscosity
If a magma has the same composition but cools at a slower rate the result will be
a rock with different mineral composition
a rock with smaller grain size
a rock with larger grain size
a rock with lighter colors
Bowen found that the following minerals crystallized in a discontinuous pattern
Sodium, calcium, and potassium plagioclase
quartz, potassium feldspar, olivine, and muscovite
biotite, calcium plagioclase, and pyroxene
olivine, pyroxene, amphibole, and biotite
What elements would this rock most likely be rich in?
iron and magnesium
silicon and oxygen
sodium and potassium
aluminum and sodium
The following form of plagioclase would be found
At the top of the discontinuous series
At the top of the continuous series
At the bottom of the discontinuous series
At the bottom of the continuous series
Igneous rocks that have 10% or less silica content are classified as
Ultra-alkaline
Ultra-felsic
Ultra-mafic
Ultra-basic
Porphrytic igneous rocks are the result of
rapid cooling and crystallization of magma
slow cooling and crystallization of a magma
differential cooling and crystallization magma
gradual cooling and crystallization of magma
Which rock would be the most stable at the surface?
granite
diorite
basalt
gabbro
Which of these igneous rocks would have the highest specific gravity
Granite
Syenite
Andesite
Gabbro
Which of these rocks would have the lightest color
90% calcium plagioclase/10% sodium plagioclase
50% sodium plagioclase/50 calcium plagioclase
90% sodium plagioclase/10% calcium plagioclase
5% sodium plagioclase/95% calcium plagioclase
Which of the following locations would have a beach with black sand?
Florida
Hawaii
Iceland
Alaska
Why are most beaches tan?
They are composed of mostly quartz which resists weathering best
The minerals that make them get bleached out by the sun
Olivine is hard and highly resists weathering.
Calcium plagioclase gives it a light color.
