Rocks 2 Flashcards
It is formed by
processes that occur
mainly at or near
Earth’s surface.
* These processes
include weathering and
erosion, compaction
and cementation of
solid rock.
Sedimentary Rocks
____ is where harden sediments become sedimentary
rocks.
Lithification
___
It is the breakdown of rock in situ.
Weathering
three types of weathering
PHYSICAL
WEATHERING,
CHEMICAL
WEATHERING,
BIOLOGICAL
WEATHERING
___
It is the wearing away of rock and soil particles and
move elsewhere by gravity, wind, water, and ice.
Erosion
____
It is when the sediments from erosion settle out of the wind, water
and ice and are left or deposited in a different place.
Deposition
___
Sediments build up over time and press down on the layers
below. This squeezes the layers so that the particles or
grains stick together.
Compaction
___
Minerals that are dissolved in water start to crystallize. These
crystallized minerals “glue” the solids or grains together.
Cementation
Sedimentary rocks are
classified into ___ or
___
clastic,
non-clastic.
These are made up of
sediments from
preexisting rocks.
* Clasts or detritus
refers to sediments
from preexisting rocks
that are physically
weathered and eroded
CLASTIC SEDIMENTARY ROCKS
It can be biological,
chemical, or a
combination of both.
NON-CLASTIC SEDIMENTARY ROCKS
___
rock are lithified
accumulation of dead
organisms
Biological sedimentary
___
rocks form from
chemical precipitation.
Chemical sedimentary
____ is a sedimentary carbonate rock or type of limestone in which timely use right
now in Manila Bay for Beach nourishment and beautification.
Dolomite
___ is one of
our major
energy
resources.
Coal
