Gly 108 Chapter 6 Exam 2
questions and answers
Source Area - answer Where sediment particles were created
Sink Area - answer Where sediment particles are deposited in layers
Weathering - answer The general process by which rocks are broken
down at Earth's surface to produce sediment particles
Two Types of Weathering - answer 1. Physical Weathering
2. Chemical Weathering
Physical Weathering - answer Takes place when solid rock is
fragmented by mechanical processes, such as freezing and thawing
or wedging by tree roots, that do not change its chemical
composition
Chemical Weathering - answer Refers to processes by which the
minerals in a rock are chemically altered or dissolved. The bluring or
disappearance of letting on old gravestones and monuments is
caused mainly by this type of weathering
Erosion - answer Refers to the processes that dislodge particles of
rock produced by weathering and move them away from the source
area. Occurs most commonly when rainwater runs downhill
Transportation - answer Refers to the processes by which
sedimentary particles are moved to sink area. It occurs when water
currents, wind, or the moving ice of glaciers transport particles to
new locations downhill or downstream.
, Deposition (Also called sedimentation) - answer Refers to processes
by which sedimentary particles settle out as water current slow,
winds die down, or glacier edges melt to form layers of sediment in
sedimentary basins.
Burial - answer Occurs as layers of sediment accumulate in
sedimentary basins on top of older, previously deposited sediments
which are compacted and progressively buried deep within the
basin. These sediments remain at depth, as part of earths crust,
until they are either uplifted again or subjected by plate tectonic
processes.
Diagenesis - answer Refers to the physical and chemical changed
caused by pressure, heat, and chemical reactions by which
sediments buried within sedimentary basins are lithified, or
converted into sedimentary rocks
Clastic Particles - answer The physical and chemical weathering of
preexisting rocks
Siliciclastic Sediments - answer Clastic particles are produced by the
weathering of rocks composed largely of silicate minerals
Chemical Sediments - answer Form at or near their place of
deposition.
Biological Sediments - answer Form near their place of deposition,
but they are the result of mineral precipitation by organisms.
Bioclastic sediments - answer Shallow-water sediments consist
predominantly of two calcium carbonate minerals, calcite and
aragonite, in variable proportions.
questions and answers
Source Area - answer Where sediment particles were created
Sink Area - answer Where sediment particles are deposited in layers
Weathering - answer The general process by which rocks are broken
down at Earth's surface to produce sediment particles
Two Types of Weathering - answer 1. Physical Weathering
2. Chemical Weathering
Physical Weathering - answer Takes place when solid rock is
fragmented by mechanical processes, such as freezing and thawing
or wedging by tree roots, that do not change its chemical
composition
Chemical Weathering - answer Refers to processes by which the
minerals in a rock are chemically altered or dissolved. The bluring or
disappearance of letting on old gravestones and monuments is
caused mainly by this type of weathering
Erosion - answer Refers to the processes that dislodge particles of
rock produced by weathering and move them away from the source
area. Occurs most commonly when rainwater runs downhill
Transportation - answer Refers to the processes by which
sedimentary particles are moved to sink area. It occurs when water
currents, wind, or the moving ice of glaciers transport particles to
new locations downhill or downstream.
, Deposition (Also called sedimentation) - answer Refers to processes
by which sedimentary particles settle out as water current slow,
winds die down, or glacier edges melt to form layers of sediment in
sedimentary basins.
Burial - answer Occurs as layers of sediment accumulate in
sedimentary basins on top of older, previously deposited sediments
which are compacted and progressively buried deep within the
basin. These sediments remain at depth, as part of earths crust,
until they are either uplifted again or subjected by plate tectonic
processes.
Diagenesis - answer Refers to the physical and chemical changed
caused by pressure, heat, and chemical reactions by which
sediments buried within sedimentary basins are lithified, or
converted into sedimentary rocks
Clastic Particles - answer The physical and chemical weathering of
preexisting rocks
Siliciclastic Sediments - answer Clastic particles are produced by the
weathering of rocks composed largely of silicate minerals
Chemical Sediments - answer Form at or near their place of
deposition.
Biological Sediments - answer Form near their place of deposition,
but they are the result of mineral precipitation by organisms.
Bioclastic sediments - answer Shallow-water sediments consist
predominantly of two calcium carbonate minerals, calcite and
aragonite, in variable proportions.
