Exam (elaborations)

Midterm (GEOL 1121K) || with 100% Error-free Solutions.

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Course
GEOL 1121 KLIMCZAK

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GEOL 1121 KLIMCZAK

Metamorphic rock correct answers A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions. (Ex: Gneiss, Marble, Quartzite) Magma correct answers A molten mixture of rock-forming substances, gases, and water from the mantle Igneous rock correct ...

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Uploaded on September 27, 2024
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metamorphic rock

Institution GEOL 1121 KLIMCZAK
Course GEOL 1121 KLIMCZAK

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Midterm (GEOL 1121K) || with 100% Error-free Solutions.
Metamorphic rock correct answers A type of rock that forms from an existing rock that is
changed by heat, pressure, or chemical reactions.
(Ex: Gneiss, Marble, Quartzite)

Magma correct answers A molten mixture of rock-forming substances, gases, and water from the
mantle

Igneous rock correct answers a type of rock that forms from the cooling and hardening of molten
rock at or below the surface
(Ex: Basalt, Granite, Obsidian)

Metamorphic and Igneous rock melts and turns into correct answers Magma

extrusive igneous rock correct answers (Volcanic) rock that forms from the cooling and
solidification of lava at Earth's surface

intrusive igneous rock correct answers (plutonic) rock formed from the cooling and solidification
of magma beneath Earth's surface

Igneous rock turns into __________ rock as a result of ______ & _______. correct answers
Metamorphic
heat & pressure

What is created when rocks are eroded by wind and water? correct answers Sediment

Sediment correct answers small, solid pieces of minerals or rocks that come from rocks or living
things

What is compacting and cementing? correct answers Accumulated sediment is pressed together
to form sedimentary rock

Sedimentary rock turns into _______ ____ as a result of ______ & ________. correct answers
Metamorphic rock
Heat & Pressure

Sedimentary Rock correct answers A type of rock that forms when particles from other rocks or
the remains of plants and animals are pressed and cemented together.
(Ex: conglomerate, limestone, sandstone)

T/F
Glaciers are known to carry only fine sized sediments correct answers False; Glaciers can move
car-sized boulders.

, clastic sedimentary rock correct answers Forms when fragments of preexisting rocks are
compacted or cemented together.

Imbrication correct answers A sedimentary deposition in which water flows fast enough to stack
pebbles.

types of sedimentary rocks correct answers Clastic (detrital), biochemical, organic, and chemical

Types of Marine Depositional Environments correct answers continental shelf, reef, deep ocean,
carbonate shelves

Transitional Environments correct answers Delta & coastal beach sands

terrestrial environment correct answers Glacial, Mountain stream, alluvial fan, desert,
river(fluvial), lake(lacustrine)

What physical property of quartz allows it to resist weathering during transport and ultimately
form a "clean" arenite? correct answers Hardness

Larger sized sediments are typically found (far from or close to) their source. correct answers far
from

Which of the following best describes the depositional environment of shale? correct answers
Lacustrine

What are some chemical sedimentary rocks? correct answers Rock gypsum or Halite, dolostone,
travertine or limestone, evaporites, Chem. precipitated Chert

What constitutes a chemical sedimentary rock? correct answers Crystalline texture, original
precipitation, monomineralic

What constitutes a sedimentary structure? correct answers preserves fossils, bedding,
stratification, stratigraphic sequence/formation (like the Grand Canyon)

Sedimentary Depositions in a Current correct answers Ripple marks (indicate direction)
Dunes (larger ripples, asymmetrical w/ steep side & more gentle sloping side)
Cross Beds(dunes overlapping, laminations w/in a bed inclined at an angle)

Turbidity Currents correct answers offshore, coastal marine, involves continental shelf, currents
carve out path & become channelized, "underwater avalanche"

Graded Beds correct answers coarse grains on bottom and fine grains on top
causes compaction, cementation, & lithification

Bed-surface markings correct answers mud cracks, rain drop impressions, fossils

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