XXVI. Question (751-800)

Question 1

A term synonymous to anhedral shape of crystals a. xenomorphic b. hypidiomorphic c. subhedral d. b and c e. none of the above

Answer 1

a. xenomorphic

Question 2

A transcurrent fault always connects two plate boundaries.

Answer 2

True

Question 3

A type of bonding that the electrons are shared between two or more atoms so that each atom has a stable electronic configuration. a. ionic bonding b. metallic bonding c. covalent bonding d. van der waals bonding

Answer 3

c. covalent bonding

Question 4

A texture that develops when slow cooling is followed by a rapid cooling. a. oolitic texture b. aphanitic texture c. porphyritic texture d. phaneritic texture

Answer 4

c. porphyritic texture

Question 5

A topographic position of a tilted ridge where the contours form a roughly parallel set of rounded V shapes. a. terrace b. draw c. valley d. spur

Answer 5

d. spur

Question 6

A tilted low area, like an inverted spur. Contour lines form a parallel set of rounded “I” shapes. a. terrace b. draw c. valley d. spur

Answer 6

b. draw

Question 7

A town is situated in a plain underlain by sedimentary rocks. If one goes away from the city either to the east or west, the rocks become older in age. a. The town is underlain by an eroded strike-slip fault b. The town is on an eroded anticline c. The town is on an eroded monocline d. The town is on an eroded syncline e. The town is underlain by an eroded normal fault

Answer 7

b. The town is on an eroded anticline

Question 8

A thick marine succession partially synonymous to deep-water turbidites a. Molasse b. Flysch c. Contourites d. none of the above

Answer 8

b. Flysch

Question 9

A term that refers to a particular Earth’s feature in the area or areas of land surface that have relatively homogeneous morphometric properties are called: A) Landform; B) Structure; C) Landscapes; D) Geomorphology

Answer 9

A) Landform

Question 10

A thin veneer of material at Earth’s surface that supports the growth of plants?

Answer 10

Soil

Question 11

A topple failure involves a) rocks falling free through the air b) rocks turning end over end c) slabs becoming separated from cliff by tension crack, then tilting and eventually falling forward

Answer 11

c) slabs becoming separated from cliff by tension crack, then tilting and eventually falling forward

Question 12

A terrain with characteristic relief and drainage arising primarily from a higher degree of rock solubility in natural waters. a. karst b. desert c. dunes d. tundra

Answer 12

a. karst

Question 13

A tower karst. a. mogote b. kegelkarst c. cockpits d. inselberg

Answer 13

a. mogote

Question 14

A thematic geochemistry map shows: A. numeric geochemical values B. contoured geochemical values C. electrical properties D. colors or symbols which graphically summarize the information

Answer 14

B. contoured geochemical values

Question 15

A thrust fault is different from a reverse fault because: A) it is usually smaller and less important; B) It is sometimes a normal fault if it is at an angle of about 45 degrees; C) It is lower-angle, and is the structure that transports its hanging wall block many kilometres; D) It is higher-angle, and is the structure that transports its hanging wall block only a few meters

Answer 15

C) It is lower-angle, and is the structure that transports its hanging wall block many kilometres

Question 16

A transform fault is: A) A strike-slip fault that forms the boundary between tectonic plates; B) A reverse fault that steepens into a thrust fault; C) A dip-slip fault connecting an anticline with a syncline; D) The rift bounding faults on a mid-ocean ridge

Answer 16

A) A strike-slip fault that forms the boundary between tectonic plates

Question 17

A tsunami is: A) A part of a fault with a seismic gap; B) A precursor to an earthquake; C) A seismic sea wave; D) A particularly large and destructive earthquake; E) An earthquake with a focal depth exceeding 300 km

Answer 17

C) A seismic sea wave

Question 18

A transform fault connects two plate boundaries.

Answer 18

True

Question 19

A term used to describe a mineral that does not vary in color because of certain light-absorbing atoms in color that forms an essential part of its make-up. a. Opaque b. Transparent c. Idiochromatic d. Monochromatic

Answer 19

c. Idiochromatic

Question 20

A texture consisting of intergrowth of quartz and alkali feldspar wherein the orientation of the quartz grain resemble cuneiform writing. a. Coronas or reaction rims b. Trachytic c. Hylopilitic d. Graphic

Answer 20

d. Graphic

Question 21

A twin which has an irregular composition surface separating 2 individual crystals. These are defined by a twin center or twin axis. a. Penetration twin b. Contact twin c. Polysynthetic twin d. Cyclical twins

Answer 21

a. Penetration twin

Question 22

A type of contact twin if the composition surfaces are not parallel to one another. a. Penetration twin b. Contact twin c. Polysynthetic twin d. Cyclical twins

Answer 22

a. Penetration twin

Question 23

A texture usually restricted to coarser grained rocks that consists of concentrically banded sphere wherein the bands consist of alternating light colored and dark colored minerals. a. Graphic b. Obicular c. Spherulitic d. Myrmekitic

Answer 23

b. Obicular

Question 24

A texture wherein microlites of plagioclase are more abundant than groundmass and the groundmass consist of glass which occupies the tiny interstices between plagioclase grains. a. Hylopilitic b. Hyalo-ophitic c. Trachytic d. Subophitic

Answer 24

a. Hylopilitic

Question 25

A touchtone is a kind of: a. Streak plate b. Litmus c. Scratch tester d. Hardness gauge

Answer 25

c. Scratch tester

Question 26

A type of fault where the hanging wall moves down with respect to the footwall, resulting in horizontal extension. a. Normal b. Reverse c. Thrust d. Transform

Answer 26

a. Normal

Question 27

A vast, saucer-shaped intrusion with a depressed central region with a dike or funnel shaped body below. a. Lacolith b. Lopolith c. Phacolith d. Bysmalith

Answer 27

b. Lopolith

Question 28

A unit of measurement being used in magnetics is: a. Milligal b. Km/sec c. Ohm-m d. Tesla e. Mho/m

Answer 28

d. Tesla

Question 29

A type of kuroko ore characterized by concentrations of sphalerite and galena, usually much finer-grained than the minerals of a typical kuroko-type of ore. a. black ore b. epithermal deposits c. besshi d. a and b e. none of the above

Answer 29

a. black ore

Question 30

A type of quartz which includes brilliant scales of colored minerals such as hematite or chromium mica: a. Tiger’s eye b. Quartz cat’s eye c. Rutilated quartz d. Aventurine quartz e. None of the above

Answer 30

d. Aventurine quartz

Question 31

A typical chert can be produced by the lithification of: a. deep-sea calcareous oozes b. the remains of diatoms and radiolarans c. the weathering products of pre-existing igneous rocks d. fine-grained sediments like silts and clays e. a mix of many kinds of non-silicate minerals

Answer 31

b. the remains of diatoms and radiolarans

Question 32

A typical example of a sedimentary rock formed from the margins of marine organisms is a. andesite b. shale c. limestone d. conglomerate e. coal

Answer 32

c. limestone

Question 33

A typical example of a sedimentary rock that normally contains no minerals is a. andesite b. shale c. limestone d. conglomerate e. coal

Answer 33

b. shale

Question 34

A type of structural study that focuses on the processes on the atomic scale to grain scale. This includes the study of fractures and flows of rock. a. Kinematic analysis b. Dynamic analysis c. Strain analysis d. Mechanical analysis e. Tectonic analysis

Answer 34

d. Mechanical analysis

Question 35

A type of surface wave traveling horizontally, and moves the ground from side-to-side a. P-wave b. S-wave c. Rayleigh wave d. Love wave

Answer 35

d. Love wave

Question 36

A vertical outcrop measuring 30 meters (m) long perpendicular to its strike has a true thickness of o 10 m o 15 m o 30 m o 3 m

Answer 36

o 30 m

Question 37

A type of sedimentary deposition occurs when material is dissolved in water, and chemically precipitates from the water. a. chemical sedimentation b. clastic sedimentation c. biogenic sedimentation d. diagenesis

Answer 37

a. chemical sedimentation

Question 38

A type of slide wherein downward rotation of rock or regolith occurs along a curved surface. a. gelifluction b. slump c. rockslides d. creep

Answer 38

b. slump

Question 39

A typical clastic sedimentary rock would be a. sandstone b. limestone c. granite d. chert

Answer 39

a. sandstone

Question 40

A typical granite is formed from a magma that in turn is derived from a. melting of pre-existing low-silica rocks b. molten reservoirs of magma deep within the mantle c. melting of pre-existing high-silica rocks d. molten high-silica magma from the outer core

Answer 40

c. melting of pre-existing high-silica rocks

Question 41

A type of mudflow caused by a volcanic eruption is called a: a. pyroclastic flow b. tsunami c. lahar d. lava bomb e. debris avalanche

Answer 41

c. lahar

Question 42

A typical rate of sea-floor spreading is a) 1 meter/year b) 4 centimeter/year c) 1 millimeter/year d) 1 kilometer/year

Answer 42

b) 4 centimeter/year

Question 43

A type of fault where little or no vertical movement and usually resulted from shear stress a. Reverse fault b. Thrust fault c. Normal fault d. Strike-slip fault

Answer 43

d. Strike-slip fault

Question 44

A typical rate of plate motion is: A) 3-4 meters per year B) 1 km per year C) 1-10 cm per year D) 1,000 km per year

Answer 44

C) 1-10 cm per year

Question 45

A vent or ground opening from which steam and volcanic gases escape a) volcanic cone b) volcanic dome c) volcanic vent d) fumarole e) volcanic fracture

Answer 45

d. fumarole

Question 46

A type of fold which result from minute displacement along closely spaced fractures is a. Flexure b. Shear c. Flow d. Refolding e. none of the above

Answer 46

a. Flexure

Question 47

A type of deformation wherein the material under stress completely returns to its original form and volume upon release of stress is a. Rupture b. Elaso-viscous c. Plastic d. Elastic e. none of the above

Answer 47

d. Elastic

Question 48

A vent from which volcanic gases and water vapor escape

Answer 48

Fumarole

Question 49

A type of twin which has a planar composition surface separating 2 individual crystals. These are usually defined by a twin law that expresses a twin plane (i.e. an added mirror plane). a. Penetration twin b. Contact twin c. Polysynthetic twin d. Cyclical twins

Answer 49

b. Contact twin