Name: ________________________
Study Sheet - Exam 3
– Geology 2 – Chapters 5, 6, 7
CD QUESTIONS:
Two headstones, one marble and the other
granite, were erected in the same
least weathered, easiest to read
inscription?
Which list of silicate minerals shows the
order in which they would weather from
least resistant to most resistant?
The atmospheric gas that forms a weak acid
when dissolved in water is _______.
If granite and basalt were exposed in an
area with a hot and humid climate:
Which of the following is NOT a mechanical
weathering process?
When some rocks weather more rapidly or
more slowly than others, it is called:
Iron oxide is the product of which one of
these weathering processes?
Which “tough” mineral is most likely to
survive extensive chemical weathering
and form sand grains on beaches or dunes?
When water freezes, its volume:
In which climate would the rate of chemical
weathering likely be highest?
When a rock undergoes __________, such as
frost wedging, it is broken into
smaller and smaller pieces.
Which statement regarding mechanical
weathering is NOT true?
Which one of the following is NOT a product
of the complete chemical
weathering of the mineral potassium feldspar?
Unloading and sheeting are associated with:
Breaking a rock into smaller pieces
decreases the rate of chemical weathering.
When substantial quantities of feldspar are
present in sandstone, the rock is
called:
The most common minerals in detrital
sedimentary rocks are __________.
Which rock type is most likely associated
with a high-energy environment such
as a turbulent stream?
Detrital sediments would predominate in all
of the following environments
except:
Sediments precipitated by processes such as
temperature change, evaporation,
and
chemical activity are called biochemical sediments.
Which one of the following is NOT a variety
of limestone?
Which common mineral found in igneous rocks
is most abundant in detrital
sedimentary
rocks?
Agate, jasper, and flint are all forms of
chert.
Rock salt and rock gypsum are examples of
__________ sedimentary rocks.
Compaction is a very important
lithification process for which sediment?
Which accumulation of sediment would most
likely exhibit good cross-bedding?
Compaction and cementation are examples of
this process.
This detrital sedimentary rock consists
primarily of rounded gravel-size particles.
Limestone is composed chiefly of the
mineral:
Which sedimentary rock consists of
materials that originated and were
transported as solid particles?
The sizes of particles in detrital
sedimentary rocks often indicates the energy of
the transporting medium.
The single most characteristic feature of
sedimentary rocks is __________.
The common name for sediment consisting of
particles between 1/16 mm and 2
mm is __________.
The presence of abundant feldspar in a
sedimentary rock suggests that
advanced stages of chemical weathering have
taken place.
Geologists use __________ to distinguish
among detrital sedimentary rocks.
Which one of these metamorphic rocks is
composed predominantly of a single
mineral?
Metamorphic rocks can form from other
metamorphic rocks.
When a rock is buried it is subjected to
greater confining pressure which tends
to make the rock more __________.
A metamorphic rock’s texture and
composition reflect the degree of
metamorphism
it has undergone.
Nonfoliated metamorphic rocks are usually
composed of __________.
During metamorphism, elongated crystals
tend to recrystallize with an
orientation
that is __________ to the direction of greatest stress.
Which one of the following metamorphic
rocks is generally nonfoliated?
When stress is applied unequally in
different directions, it is termed _______.
Which one of the following is NOT an agent
of metamorphism?
Rocks subjected to intense heat when they
are intruded by magma undergo a
process called __________.