Term: Definition:
Sedimentary Rocks Rock formed from hardened deposits of
sediment.
Bedding Soil
Bedding Plane Boundary between two sedimentary
rock layers.
Delta Fan-shaped deposit of
sediments at the mouth of a stream
Deposition Sediment falls to the bottom
of a body of water
Ripple Marks Small waves formed in rocks
Sediment Fragments that result from
the breaking of rocks, minerals, and organic matter
Mechanical Weathering Process that changes the physical form of
rocks
Humus Dark, organic material
formed from the decayed remains of plants and animals
Leaching Process in which water
carries dissolved minerals to lower layers of rock
Soil Different particles
that make up the crust
Soil Horizon Layers of a soil profile
A-Horizon Topsoil
B-Horizon Minerals located from
topsoil, clay, and sometimes, humus
C-Horizon Bedding rock that has been
partially weathered
Weathering Change in the physical form
or chemical composition of rock materials exposed at the earth’s surface.
Creep Slow downhill movement
of weathered rock material
Debris Particles broken apart
Mass Wasting Large amount of sediments that
are eroded down or collected in a certain area
Landslide Sudden movement of loose
rock and soil down a slope
Rock Fall Fall of rock from a steep
cliff
Slump Downhill movement of a
large block of soil under the influence of gravity
Talus Pile of rock
fragments that accumulates at the base of a slope
Beaches Deposit of rock fragments
along an ocean shore or a lakefront
Coasts Where land meets water
Erosion Process by which the
products of weathering are transported
Longshore Current Wave motion down a coastline
Longshore Drift Process of sediments moving along
with the current
Wave Periodic up-and-down
movement of water
Wave Base Bottom of a wave
Wave Refraction Break wall that prevents erosion
No comments:
Post a Comment