GEOL 1340 EXAM 1 ONLINE LYTWYN
CHAPTERS 1-3 ASSESSMENT TEST 2026
TESTED QUESTIONS WITH FULL SOLUTION
GRADED A+
◉ What types of magma will most likely result in fluid, basaltic lava
flows and mild eruptions? Answer: low silica and gas-poor magma
◉ Where would composite volcanoes most likely form? Answer:
convergent plate boundary
◉ What is LEAST LIKELY an environmental effect of an explosive
volcanic eruption? Answer: net increase in solar radiation at Earth's
surface
◉ Cinder cones ... Answer: are generally small and constructed of
pyroclastic material
◉ The mineral calcite belongs to which on the following mineral
groups Answer: Carbonates
◉ (True/False) Only igneous rocks can be uplifted and exposed to
weathering Answer: False
,◉ (True/False) Any rock type can be uplifted and exposed to
weathering agents Answer: True
◉ What is not a silicate mineral Answer: hematite
◉ (True/False) Magma crystallizing deep in the crust cools slowly
and forms large crystals Answer: True
◉ (True/False) Lava erupted on Earth's surface cools very slowly
when exposed to the atmosphere Answer: False
◉ (True/False) fast cooling rates of magma produce large crystals
Answer: False
◉ (True/False) silicate minerals are the most abundant minerals in
Earth's crust Answer: True
◉ (True/False) an igneous pluton forms from lava that is extruded
onto Earth's surface and cools quickly Answer: False
◉ A magma rich in dissolved gases will produce ... Answer: explosive
eruptions and volcanic ash
,◉ a light-colored igneous rock with abundant quartz and potassium
feldspar is probably _______ in composition Answer: felsic
◉ A low-viscosity magma most likely ... Answer: has low silica
content
◉ Detrital (clastic) sedimentary rocks ... Answer: are composed of
particles of pre-existing rocks
◉ What is not a sedimentary environment where sediments
accumulate? Answer: uplifted bedrock undergoing weathering and
erosion
◉ How does breccia differ from conglomerate? Answer: particles in
breccia are angular, while particles in conglomerate are rounded
◉ Quartz sandstone is metamorphosed into ________ Answer:
Quartzite
◉ Hornfels are most commonly associated with ________
metamorphism Answer: contact
, ◉ What is an example of foliation in metamorphic rocks? Answer:
alignment of platy minerals like micas in a common direction due to
direct pressure during metamorphism
◉ What is not a foliated metamorphic rock? Answer: sandstone
◉ Hydrothermal metamorphism will most likely occur ... Answer:
near mid-ocean ridges
◉ ________ metamorphism is directly associated with the margins of
igneous intrusions? Answer: contact
◉ What chemical sedimentary rock will most likely contain fossils?
Answer: limestone
◉ What is not a direct product of weathering? Answer: Water
◉ What are the two dominant igneous intrusions illustrated below?
Answer: sill and dike
◉ (True/False) Silicate tetrahedra can bond with cations but not
with other tetrahedra. Answer: False
CHAPTERS 1-3 ASSESSMENT TEST 2026
TESTED QUESTIONS WITH FULL SOLUTION
GRADED A+
◉ What types of magma will most likely result in fluid, basaltic lava
flows and mild eruptions? Answer: low silica and gas-poor magma
◉ Where would composite volcanoes most likely form? Answer:
convergent plate boundary
◉ What is LEAST LIKELY an environmental effect of an explosive
volcanic eruption? Answer: net increase in solar radiation at Earth's
surface
◉ Cinder cones ... Answer: are generally small and constructed of
pyroclastic material
◉ The mineral calcite belongs to which on the following mineral
groups Answer: Carbonates
◉ (True/False) Only igneous rocks can be uplifted and exposed to
weathering Answer: False
,◉ (True/False) Any rock type can be uplifted and exposed to
weathering agents Answer: True
◉ What is not a silicate mineral Answer: hematite
◉ (True/False) Magma crystallizing deep in the crust cools slowly
and forms large crystals Answer: True
◉ (True/False) Lava erupted on Earth's surface cools very slowly
when exposed to the atmosphere Answer: False
◉ (True/False) fast cooling rates of magma produce large crystals
Answer: False
◉ (True/False) silicate minerals are the most abundant minerals in
Earth's crust Answer: True
◉ (True/False) an igneous pluton forms from lava that is extruded
onto Earth's surface and cools quickly Answer: False
◉ A magma rich in dissolved gases will produce ... Answer: explosive
eruptions and volcanic ash
,◉ a light-colored igneous rock with abundant quartz and potassium
feldspar is probably _______ in composition Answer: felsic
◉ A low-viscosity magma most likely ... Answer: has low silica
content
◉ Detrital (clastic) sedimentary rocks ... Answer: are composed of
particles of pre-existing rocks
◉ What is not a sedimentary environment where sediments
accumulate? Answer: uplifted bedrock undergoing weathering and
erosion
◉ How does breccia differ from conglomerate? Answer: particles in
breccia are angular, while particles in conglomerate are rounded
◉ Quartz sandstone is metamorphosed into ________ Answer:
Quartzite
◉ Hornfels are most commonly associated with ________
metamorphism Answer: contact
, ◉ What is an example of foliation in metamorphic rocks? Answer:
alignment of platy minerals like micas in a common direction due to
direct pressure during metamorphism
◉ What is not a foliated metamorphic rock? Answer: sandstone
◉ Hydrothermal metamorphism will most likely occur ... Answer:
near mid-ocean ridges
◉ ________ metamorphism is directly associated with the margins of
igneous intrusions? Answer: contact
◉ What chemical sedimentary rock will most likely contain fossils?
Answer: limestone
◉ What is not a direct product of weathering? Answer: Water
◉ What are the two dominant igneous intrusions illustrated below?
Answer: sill and dike
◉ (True/False) Silicate tetrahedra can bond with cations but not
with other tetrahedra. Answer: False
