Which of the following is not a type of chemical
weathering?
(a) crystal growth
(b) dissolution
(c) hydrolysis
(d) oxidation
Which of following is most significant in the degradation of the
roads in New Orleans?
(a) crystal growth
(b) frost wedging
(c) subsidence
(d) thermal expansion and contraction
Which of the following substances is affected least by weathering
by dissolution?
(a) gypsum
(b) limestone
(c) quartz
(d) sodium chloride
In which of the following locations would chemical weathering be
most important?
(a) Antarctica
(b) Jamaica
(c) the Sahara Desert
(d) the top of Mt Everest
In which of the following locations would the thickest soils
likely form?
(a) The Gobi Desert
(b) the North Pole
(c) Southern Mississippi
(d) the top of Mt St Helens
Which of the following is not a type of mechanical
weathering?
(a) exfoliation
(b) frost wedging
(c) oxidation
(d) thermal expansion and contraction
Hydrolysis is most important to geologists because
(a) it breaks of sheets of igneous rock
(b) it leads to the conversion of feldspars to clays
(c) it purifies water
(d) it removes hair from old ladies' upper lips
If grains of quartz are well rounded and well sorted, then which
of the following is least likely to be true?
(a) it came from a stream or beach
(b) it is near the source of the sediment
(c) it was transported by water
(d) sharp edges were knocked off during transport
Three sediments are transported 100 miles, one by water, one by a
glacier, and one by air. The most rounded sediment is likely to be the
one transported by
(a) air
(b) a glacier
(c) water
In the figure below, the lines marked X represent
(a) bedding planes
(b) cross-bedding
(c) graded bedding
(d) ripple marks
Missing Figure here
Which of the following is not part of the process of turning
sediments into sedimentary rocks?
(a) cementation
(b) compaction
(c) hydrolysis
(d) recrystallization
When a river spills over its bank and the flood waters gradually
slow down, which of the following is likely to result as sediment is
deposited?
(a) an angular unconformity
(b) exfoliation
(c) graded bedding
(d) rounding of sediments
Which of the following rocks contains volcanic fragments?
(a) arkose
(b) graywacke
(c) quartz-arenite
(d) shale
Which of the following does not form from precipitation
from sea water?
(a) chert
(b) gypsum
(c) salt
(d) shale
Which of the following rocks is formed from sediment that has been
transported the longest distance?
(a) arkose
(b) coal
(c) graywacke
(d) quartz-arenite
Salt deposits beneath the Mediterranean Sea are due to
(a) evaporation that occurred when the Mediterranean Sea was partially
cut off from the Atlantic Ocean
(b) pollution from human activities
(c) runoff from using salt to de-ice European roads
(d) salt water from the Dead Sea
Which of the following is not a reason why coal forms from
old swamps?
(a) evaporation in swamps increased the concentration of carbon in the
water
(b) there is a lot of plant growth in swamps
(c) the plant material buried in a swamp is cut off from oxygen
(d) the slow moving water in swamps contains little oxygen
Which of the following would you likely not find in a desert
environment?
(a) desert pavement
(b) flashfloods
(c) a thick O layer in the soil
(d) wind-blown sediments
Which of the following does not describe an estuary, such as
Lake Pontchartrain?
(a) biologically productive
(b) brackish water
(c) protected from the open ocean
(d) well-sorted, coarse sediments
The Mississippi River has changed course a number of times. The
reasons it remains in its current location include all of the following
except
(a) the Corps of Engineers has built large control structures at Old
River
(b) the distance to the Gulf of Mexico by way of the Atchafalaya River
is shorter than the current route
(c) levees line its current route
(d) there are numerous economic reasons for forcing the river to
maintain its current route
Which of the following is not a factor in metamorphism?
(a) circulating fluids
(b) grain size
(c) heat
(d) pressure
Strong directed pressure is usually the result of
(a) deep burial
(b) intruding magma
(c) meteorite impacts
(d) plate collisions
In the figure below, in which location is high-temperature,
low-pressure metamorphism likely to occur?
(a) A
(b) B
(c) C
Figure from your book.
In the figure above, in which location is contact metamorphism
likely to occur?
(a) A
(b) B
(c) C
In which of the following rocks is part of the rock metamorphic
and part igneous?
(a) slate
(b) phyllite
(c) schist
(d) gneiss
(e) migmatite
In which of the following rocks are the mica grains large enough
to be seen individually, perhaps 1cm in size? (Hint: garnets are
commonly found in this rock.)
(a) slate
(b) phyllite
(c) schist
(d) gneiss
(e) migmatite
Which of the following rocks forms from metamorphosed limestone
(a) gneiss
(b) hornfels
(c) marble
(d) quartzite
Foliation in metamorphic rocks is due to the conversion of clays
to
(a) mica
(b) mudstone
(c) quartz
(d) talc
When sedimentary rocks are uplifted, folded, eroded, and then
later buried under new sediment, the type of unconformity likely to be
created is
(a) angular unconformity
(b) disconformity
(c) nonconformity
(d) superconformity
When mail is piled on my desktop day after day, the oldest mail is
at the bottom of the pile. This is similar to the geologic method of
relative dating called
(a) cross-cutting relationships
(b) inclusions
(c) original horizontality
(d) super-position
(e) uniformitarianism
A radioactive isotope has a half-life of 200 years. If a material
started with 1 kg of the isotope and now contains 0.25 kg, how much
time has passed?
(a) 150 years
(b) 200 years
(c) 400 years
(d) 600 years
If the daughter product of isotopic decay weathers from a rock
more quickly than the parent product, the apparent age of the
rock will be
(a) older than its true age
(b) the same as its true age
(c) younger than its true age
All of the following are true of stromatolites except
(a) they altered the Earth's atmosphere
(b) they looked like huge mushrooms
(c) they reproduced asexually
(d) they were early vertebrates
(e) they were made of a primitive form of algae
Mass extinction of the dinosaurs
(a) destroyed the last of the reptiles
(b) led to the evolution of birds
(c) provided an opportunity for the expansion of mammals
(d) was due to glaciation
True/False: Put A for True and B for False
Crystal growth is an example of mechanical weathering.
The O layer in a desert is normally thicker than in a humid
climate.
Color of a soil may be indicative of how much of the year the soil
is wet.
Broken shells are an example of detrital sediment.
The coarsest sediment in New Orleans is likely to be found near
the Mississippi River.
A rock that forms from lithified mud is called a sandstone.
Foliated rocks result from burial metamorphism.
Reefs form where water is relatively clear and free of
sediment.
Gneiss is pronounced like niece.
The process of matching up across an area rocks of similar ages or
type is called correlation.
Counting tree rings to determine age is called varve chronology.
From the slides: We will view slides together in class.
The following questions are based on these slides.
The white substance shown in the slide is all of the following
except
(a) an evaporite
(b) from an arid environment
(c) organic
(d) salt
In the slide shown, the red surface I will point to represents
(a) a fault
(b) a lava flow
(c) an old road
(d) an old stream bed
In the picture shown, the dominant wind direction
(a) is from the left side of the screen
(b) is from the right side of the screen
(c) changes constantly
In the slide shown all of the following are true except
(a) the rocks are on the cutbank of the river
(b) the rocks reduce erosion of the riverbank
(c) the rocks were deposited when river velocity first slows as it
floods its banks
(d) the rocks reduce the amount of sediment entering the river
In the picture shown, the canal does all of the following
except
(a) allow construction in areas that were once swamps and marsh
(b) allow ships to avoid the current of the Mississippi River, instead
passing through Lake Pontchartrain and the intercoastal waterway
(c) transport pollution to Lake Pontchartrain
(d) transport water that fell as rain on New Orleans
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version 3.01. On 29 Oct 2001, 09:23.
