dehon.txt

Magnetic stripes of the sea floor refers to f�

The earth�s core is inferred to be--

The premise that present-day processes have operated throughout geologic time is

4. Ocean-ocean convergence zones are marked by the occurrence of�

5. Continental crust �

6. The mid-oceanic ridges are sites of�

7. The earth is estimated to be _____years old?

8. All plate margins are characterized by�

9. Deep, oceanic trenches are found above ________ .

10. Abundant fossils begin showing up in rocks that are _____years old.

11. The top layer of the ocean crust is composed of�

12. The upper mantle is composed of�

13. A untested explanation of an occurrence in nature is known as a(n)�

14. In a stack of sedimentary rocks, the oldest rock layer is usually found at the ____ of the stack.

15. Rubies and sapphires are gem quality varieties of--

16. Which one of the following groups do most minerals in the earth�s crust belong?

17. Quartz is composed of--

18. The tendency for some minerals to break along smooth, flat surfaces is known as--

19. The most abundant mineral group in the crust is (are) the--

20. The most abundant mineral group at the earth�s surface is (are) ______.

Pyroxene minerals consist of

21. Calcium carbonate (CaCO3) is the mineral�

23. The ferro-magnesium silicates are ______ colored.

24. Alumnosilicates are mostly_________ colored.

25. Which of these is not an alumnosilicate minera?

26. Which is not true?

the rock cycle implies that

27. During the era of the dinosaurs�

29. If you wanted to drill to the mantle, you would probably choose a location with thin crust. The obvious location for to such a site would be the�

36. the steps to the library are made out of

30. Hematite is--

The earths core is inferred to be

31. The trench-volcanic arc association is indicative of a ________ plate margin.

33. The ocean crust is formed mostly of �

34. The Japanese islands are an example of a ___________.

Most of the Sodium (na) in rock forming mineral is found in

35. New material is formed at the _______ boundary (boundaries).

One rock is the material for another might well be a statement applied to the

37. The Earth�s crust is thickest at�

39. Aluminum is found in ________ minerals.

40. The two sources of energy for the Earth system are _____ ______.

the driving mechanism of plate tectonics is

the hawaiin island are formed as

what is the source of lava for hawaii

41. You are offered a raw diamond at a fantastically low price. How would you determine its authenticity?

Scientific theories are guesses that may someday be proven by rigorous test
True False

45. The San Andreas fault in California is a _____ plate margin.

47. The reddish mineral grains in the rock that makes up the steps to the library are�

48. Rocks composed of bit and pieces of pre-existing rocks are most likely _____ in origin.

49. We have never drilled into the mantle of the earth, but we find unaltered pieces of it as ____.

50. We have never drilled into the core of the earth, but we but we can conclude what

Quartz-

Biotite-(mica)-

Olivine-

Plagioclase(feldspar)-

Augite(pyroxene)-

56. The earth is uniform in composition (all the same stuff) from the center to the

57. There are more oxygen atoms in the crust of the earth than in the atmosphere. True

58. Minerals are not always crystalline solids.

1. Metamorphic rocks are formed from pre-existing rocks.
True False

2. Metamorphosed limestone is much more resistant to chemical weathering
than limestone because it has different minerals. (both are calcte)
True False

3. K-feldspar is more stable than quartz in chemical weathering.
True False

4. Basalts produce lots of rust (iron oxide) when weathered in a humid climate.
True False

5. Slates are resistant to chemical weathering.
True False

Good, thick residual soils (pedalfers) are found in the northeast United States (New England).

7. To be a fossil, an object must be a part of the original organism.

8. The most common sedimentary rocks are sandstones.

9. The light, buff colored stone that make up the facing of the library
and the Mediterranean-style buildings on campus is limestone.
True False

10. The sea floor is composed of shale.

11. Pillow basalt forms �

12. Which of the following is most susceptible to chemical weathering by dissolution?

13. Feldspar weathers to _____.

60. Present day geologic processes as essentially the same as those of the past.
True False

14. In which region of the United States are pedalfers most likely to form?

15. Enchanted Rock near Llano, Texas is a �

16. Iron oxide is common at the surface of the earth because it forms by the weathering of�

17. Well-rounded and well-sorted, sand-sized grains in a sandstone is suggestive of�

18. The process by which dissolved mineral matter precipitates in the pore spaces of a sediment and binds it together is�

19. The most abundant sedimentary rocks are�

20. The grain size of igneous rocks is determined by the _________.

21. Coquina is a rock formed of--

22. Igneous rocks form from--

23. The rock seen in road cuts in the Hill Country is�

24. Playa (dry) lakes of the southwest United States are sites of deposition of�

25. A sedimentary rock formed by repeated flooding of lowland next to a river is

26. A sedimentary �rock� formed by accumulation of altered plant remains is�

27. Clay particles stick together to form shales and mudstones by�

28. Which of the following is most likely to dissolve away in semi-humid a climate?

29. The colors red, yellow, and brown in sedimentary rocks are produced by�

30. Finely divided (microscopic grains) pyrite in shale colors the rock-

31. Black in limestone is usually due to the presence of�

32. Which of the following is an indication of an alternating wet and dry environment such as a tidal flat?

33. Which of the following can be used to determine paleocurrent direction�

34. The most abundant mineral group at the earth�s surface is(are) �

35. The caliche horizon of an ancient pedocal may be seen as a thin layer of _____

36. Changes in sediment that occur after deposition are called�

37. Shield volcanoes are built of _______.

38. The steps to the library are made from blocks of�

39. Which metamorphic rock contains the same basic minerals as an igneous rock?

40. Heat from an igneous intrusion is the primary agent of change in _____metamorphism.

41. Mylonites are formed by _____ metamorphism.

42. Which of the following metamorphic rocks displays a foliated texture?

43. Which mineral would indicate the higher grade of metamorphism?

44. A thin, discoid-shaped, concordant igneous intrusion is probably a �

45. A sedimentary rock composed of angular pebbles is called-

46. Phenocrysts are evidence of--

47. When sea water evaporates, the last mineral to precipitate is ______.

48. _____ refers to the process of fossilization where the internal cavities and pores of the original organism are filled with precipitated mineral matter.

49. Low temperatrure and high pressure metamorphism (as in subduction zones) is the ________ facies.

50. The metamorphic rock formed from limestone is�

51. Thin, sheet-like, concordant igneous intrusions are;

52. A natural glass formed by rapid cooling of lava is called --

53. Steep-sided, classic, �volcano-shaped� cones are called--

54. Pyroclastic rocks form by--

55. Dolostone is formed by the addition of_ ____ to calcite in limestone.

hornfels

56. Slate

Schist

Shale

Marble

58. Sandstone

quartzite

Gneiss

limestone

. The oldest parts of the sea floor are most
likely occur near—

Texas State University is situated on the
_____.

El Capitan in west Texas is
an example of an ancient ____

Marine limestones found in the central
United States are evidence of ___.

. Which one of the follow is not a possible economic product
associate with salt domes

The ocean
crust is format at

Hydrothermal fluids are spewing out into ocean
depth at ____.

Submaine canyons are usually found…

A submerged, flat topped, seamount rising 1 km or
more above the sea floor is a(n)____.

46. The Carbonate Composition Depth is the level…

45. The oldest
rocks in North America can be found inB

44. The term “orogeny”
refers toB

43. The North
American continent has grown progressively B

42. The core of
the Sierra Nevada Mountains and Smoky Mountains exposes B

41. The Texas
Hill Country and the Ozark Mountains are examples of mountain or hilly terrain
formed by--

40. The Basin
and Range topography of western United States is related to B

39. The Andes
Mountains of South America are an example of mountains formed byB

38. The Coast
Ranges of Washington, Oregon, and northern California are formed by___

37. Source
materials for the sedimentary rocks in the Appalachian Mountains was located to
the ________of the present day mountains.

36. The Red Sea
is interpreted as:

35. The stable
interior of the continent is known as its

34. The compass
direction formed by the intersection of a dipping surface and a horizontal
plane is theB

33. The Alps,
Himalayas, and AppalachiansB

32. According
to the concept of _______, "floating" mountains adjust their
elevation in response to erosion by upward buoyancy as surface material is
removed.

31. The low-standing plains between horst-blocks areB

30. A fold that
exposes beds that dip in toward the center of the fold is aB

29. The Basin and Range Province of the western United
States are characterized by a large number of B

28. Most of the
world's largest mountain belts were formed in response to:

27.
Fractures in rock without movement along the fractures are called

26. The
Himalayan Mountains formed by _____.

25. Show me the
Rift Valleys of East Africa, and I'll show you a:

24. If a
sequence of beds gets younger toward the east, then they must be dipping to the_____.

23. If the
fault dips toward the up-thrown block, the fault is:

22. In an
overturned fold, the limbs dip
_____ .

21. A _____ is
a fracture in bedrock along which movement has taken place.

20.
Geologic structures (faults and folds) are important in oil and gas
exploration because:

19. The San
Andreas Fault system can be described as:

18. A bed that
dips due east, must strike:

17. If the
hanging wall has moved down, the fault is:

16. Which one of the following is consistent with
deformation by folding?

15. The block
of material overlying an inclined fault plane is the:

14. A
structural basin is simply a circular:

13. Which of
the following would not be characteristic of an anticline:

12. If the
surface exposures (map views) of folded beds resemble V’s or horseshoes, then
the folds must be:

11. If a deformed body recovers its original
shape as stress is released, it is said to be:

10. A sea large wave created
by an earthquake is properly called a__________.

9. A _______ is a flat topped hill that is usually
an indication of flat lying strata

8. A _________ is a prominent ridge formed by
differential erosion of a resistant layer of dipping strata.

7. We know what the mantle is made of because—

6. The difference in the
arrival time of the P and S wave is related to—

5. Most sedimentary rocks were originally
deposited as flat-lying beds.
True False

4. Folds
and thrust faults are caused by tension in the earth’s crust.

3. Faults are clearly an example of plastic
strain.

2. Beds usually dip in the direction of younger
beds.
True False

1. Rocks near the surface deform mostly as fluid
materials.

This feature marked by arrows is a___.…

This region has been subjected to—

This image shows a

This exposed rock surface displays… (on Mars)

Image
represents evidence of…

A surface composed of loose rock rubble at the angle
of repose on mountain slopes is—

Some avalanches move at great speed and even move
uphill because they are—

_______ is among the slowest of the mass-wasting
processes.

______ are rapid mass-movements saturated with water.

______ are mass movements that involve displacement of
a mass of rock along a curved surface of failure.

______ aids mass-wasting by adding weight; weakening
cohesion; and providing lubrication.

The deepest part of a stream is found at the—

When sediment-laden water in a main channel sloshes
out onto a flood plain during flooding, some
of its medium- to fine-grained sediment load will be deposited along the
side of the channel to form a ____.

At a bend in a river channel, maximum velocity is
found on the _____ of the bend.

The downward limit to to which a stream can erode is
itsB

V shaped valleys are deepened by fluvial erosion and widened by _______.

Natural levees are formed byB

The largest, readily available source of fresh water
is found as—

In central Florida, a region with a great many small
lakes, the surface material is probably composed ofB

Water wells draw water fromB

Artesian wells draw water fromB

Caves form by solution of limestone

The elevation of the water table is the same as the
elevation ofB

Efficient water wells develop a _____ cone of
depression.

When an aquitard or aquiclude is situated above the
water table, a localized _____ may
exists.

Groundwater rises toward the surface in ______ wells.

The water table is

The capacity for rock to allow water to flow
through it is its

_____ lake basins in arid regions hold water for short
periods of time.

60. Conglomerate