1 Exampromax - Stuvia US 2025/2026
APSC 151 Midterm Questions and Answers
(100% Correct Answers) Already Graded A+
Question: The process of unloading can produce: joints, mud cracks, cross-
bedding or leaching
⼀Answer: joints
Question: An unconformity, like the one in the Kingston area, is best
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defined as:
Exampromax - Stuvia US
(a) a layer of rocks with very unusual fossils
(b) a basal conglomerate
(c) a layer of sedimentary rocks (d) a thin, tabular or sheet-like, igneous
intrusion
(e) a time gap in the rock record
⼀Answer: A gap in the rock record
Question: Weathering produces minerals that are more stable at the
Earth's surface. Of the five minerals listed below, which one is the most
abundant product of the weathering process:
(a) clay
(b) hematite
(c) limonite
(d) quartz
(e) feldspar
⼀Answer: Clay
Question: For which group do both minerals have a sheet structure?
, 2 Exampromax - Stuvia US 2025/2026
(a) muscovite, clay
(b) feldspar, quartz
(c) hornblende, pyroxene
(d) plagioclase, pyroxene
(e) olivine, hornblende
⼀Answer: muscovite, clay
Question: 11. Which of the following rocks is least likely to have a
foliation? (a) schist
(b) slate
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(c) gneiss
Exampromax - Stuvia US
(d) marble
(e) migmatite
⼀Answer: Marble
Question: 12. The Hawaiian Islands are located where the Pacific plate
is:
(a) separating from the North American plate
(b) diving under Japan
(c) diving under the North American plate
(d) migrating over a hot spot
(e) being thrust over the North American plate
⼀Answer: Migrating over a hot spot
Question: 14. Which of the following rocks is the most immature
(travelled the least)?
(a) shale
(b) breccia
(c) siltstone
APSC 151 Midterm Questions and Answers
(100% Correct Answers) Already Graded A+
Question: The process of unloading can produce: joints, mud cracks, cross-
bedding or leaching
⼀Answer: joints
Question: An unconformity, like the one in the Kingston area, is best
© 2025 Assignment Expert
defined as:
Exampromax - Stuvia US
(a) a layer of rocks with very unusual fossils
(b) a basal conglomerate
(c) a layer of sedimentary rocks (d) a thin, tabular or sheet-like, igneous
intrusion
(e) a time gap in the rock record
⼀Answer: A gap in the rock record
Question: Weathering produces minerals that are more stable at the
Earth's surface. Of the five minerals listed below, which one is the most
abundant product of the weathering process:
(a) clay
(b) hematite
(c) limonite
(d) quartz
(e) feldspar
⼀Answer: Clay
Question: For which group do both minerals have a sheet structure?
, 2 Exampromax - Stuvia US 2025/2026
(a) muscovite, clay
(b) feldspar, quartz
(c) hornblende, pyroxene
(d) plagioclase, pyroxene
(e) olivine, hornblende
⼀Answer: muscovite, clay
Question: 11. Which of the following rocks is least likely to have a
foliation? (a) schist
(b) slate
© 2025 Assignment Expert
(c) gneiss
Exampromax - Stuvia US
(d) marble
(e) migmatite
⼀Answer: Marble
Question: 12. The Hawaiian Islands are located where the Pacific plate
is:
(a) separating from the North American plate
(b) diving under Japan
(c) diving under the North American plate
(d) migrating over a hot spot
(e) being thrust over the North American plate
⼀Answer: Migrating over a hot spot
Question: 14. Which of the following rocks is the most immature
(travelled the least)?
(a) shale
(b) breccia
(c) siltstone
