Geology
SOLUTION: SMC Geology Stratigraphy System of Rocks Questions
SOLUTION: SMC Geology Stratigraphy System of Rocks Questions.
1. A system of rocks is a …
a. Geochronologic unit
b. Chronostratigraphic unit
c. Lithostratigraphic unit
d. Biostratigraphic units
e. Chemostratigraphic unit
2. The time interval we call the Jurassic is a(n) ….
a. Era
b. Period
c. System
d. Series
e. Epoch
3. The Oligocene rocks represent …
a. A formation
b. A zone
c. An epoch
d. A series
e. A member
4. The basic working unit of chronostratigraphy is the …
a. Period
b. Age
c. System
d. Epoch
e. Stage
5. The “Santa Monica Shale” is a Formation, and as such it represents …
a. A time interval
b. A physical body of rocks
c. A type of rock containing certain fossils
d. All of the previous
e. None of the previous
6. Which of the following is based on the Principle of Faunal and Floral Succession?
a. Geochronology
b. Geochronometry
c. Chronostratigraphy
d. Lithostratigraphy
e. Biostratigraphy
7. The total vertical interval through which a taxon occurs in the rock record, from
its lowermost to its uppermost occurrence, is called …
a. The formation of that taxon
b. The range of that taxon
c. The time of that taxon
d. The rock of that taxon
e. None of these
8. USE FIGURE ABOVE FOR HELP – What magnetic stratigraphic unit do we assign to
the time of the Cretaceous/Paleogene extinction?
a. Chron 1N
b. Chron 65N
c. Chron 29N
d. Chron 65R
9. Sequence stratigraphy seeks to explain the depositional patterns of sediments on
a basin-scale with reference to changing sea level and tectonic subsidence. These
patterns can be studied thanks to seismic profiles, and sequences are bounded
by…
a. Faults
b. Folds
c. Unconformities
d. Extinctions
e. Geophysical logs
10. Milankovitch cycles are caused by complex orbital patterns of the Sun-MoonEarth system, with smaller influence from other celestial bodies. One cycle reflects
a periodicity of about 19,000 and 23,000 years (often rounded up at 20,000
years). This cycle changes when seasons occur in relation to the position of earth
around the Sun, and is reflected in the glacial/interglacial periodicity we are
currently observing on Earth. Today, we are leaving in an interglacial (warmer)
period, but only 18,000 years ago we are at a peak glaciation.
What is the name of this cycle?
a. Obliquity
b. Short eccentricity
c. Long eccentricity
d. Precession
e. Galactic year
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a. Geochronologic unit
b. Chronostratigraphic unit
c. Lithostratigraphic unit
d. Biostratigraphic units
e. Chemostratigraphic unit
2. The time interval we call the Jurassic is a(n) ….
a. Era
b. Period
c. System
d. Series
e. Epoch
3. The Oligocene rocks represent …
a. A formation
b. A zone
c. An epoch
d. A series
e. A member
4. The basic working unit of chronostratigraphy is the …
a. Period
b. Age
c. System
d. Epoch
e. Stage
5. The “Santa Monica Shale” is a Formation, and as such it represents …
a. A time interval
b. A physical body of rocks
c. A type of rock containing certain fossils
d. All of the previous
e. None of the previous
6. Which of the following is based on the Principle of Faunal and Floral Succession?
a. Geochronology
b. Geochronometry
c. Chronostratigraphy
d. Lithostratigraphy
e. Biostratigraphy
7. The total vertical interval through which a taxon occurs in the rock record, from
its lowermost to its uppermost occurrence, is called …
a. The formation of that taxon
b. The range of that taxon
c. The time of that taxon
d. The rock of that taxon
e. None of these
8. USE FIGURE ABOVE FOR HELP – What magnetic stratigraphic unit do we assign to
the time of the Cretaceous/Paleogene extinction?
a. Chron 1N
b. Chron 65N
c. Chron 29N
d. Chron 65R
9. Sequence stratigraphy seeks to explain the depositional patterns of sediments on
a basin-scale with reference to changing sea level and tectonic subsidence. These
patterns can be studied thanks to seismic profiles, and sequences are bounded
by…
a. Faults
b. Folds
c. Unconformities
d. Extinctions
e. Geophysical logs
10. Milankovitch cycles are caused by complex orbital patterns of the Sun-MoonEarth system, with smaller influence from other celestial bodies. One cycle reflects
a periodicity of about 19,000 and 23,000 years (often rounded up at 20,000
years). This cycle changes when seasons occur in relation to the position of earth
around the Sun, and is reflected in the glacial/interglacial periodicity we are
currently observing on Earth. Today, we are leaving in an interglacial (warmer)
period, but only 18,000 years ago we are at a peak glaciation.
What is the name of this cycle?
a. Obliquity
b. Short eccentricity
c. Long eccentricity
d. Precession
e. Galactic year
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SOLUTION: SMC Geology Stratigraphy System of Rocks Questions