the view that most of earth's geological features are the result of large-scale catastrophes such as floods, volcanic eruptions,etc.
The view that most of earth's geological features are the result of slow, gradual processes that have been at work for millions or even billions of years.
material in the top layer of the surface of the earth in which plants can grow.
The decayed remains of once-living creatures.
a very fine-grained soil that is plastic when moist but hard when fired.
rock fragments and pebbles.
a loose material consisting of grains of rock or coral.
mud or clay or small rocks deposited by a river or lake.
the layer of soil on the surface
The top layer of the earth, made of solid rock.
is formed from sediments such as sand, silt and other components of soil.
forms from molten rock, which is called magma.
is rock that has undergone extreme change do to lots of heat and pressure.
loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity.
is the lava that shoots out of volcanos when they erupt.
Inorganic crystalline substances found natrurally in the earth.
pouring liquid off the top when sediment has settled to the bottom.
In most solids, the arrangements of particles in repeating geometric patterns.
largest canyon in the world.
if you look at the grand canyon you can see obvious layers called...
The process by which rocks are broken down by the forces of nature.
weathering that changes the shape and size of rocks without changing the physical makeup of the rock.
the process in which rock is broken down by changes in its chemical makeup.
a low triangular area where a river divides before entering a larger body of water.
water that fills the cracks and spaces in underground soil and rock layers.
a single layer of rock is less than 1 cm. thick.
Several of laminations together
the process by which sediments and rock fragments are carried away by wind or rain.
result of groundwater erosion.
the icicle-like structure formed from sediment deposits hanging down.
Formed from deposits rising from the ground.
when the Stalactite and the Stalagmite meet.
A surface of erosion that separates one layer of rock from another.
Unconformity where tilted or folded strata are overlain by horizontal strata.
the Angular Unconformity of the Grand Canyon.
a type of unconformity in which layered sedimentary rocks lie on an erosion surface cut into igneous or metamorphic rocks.
formed as an erosion surface between parallel layers of sedimentary rock.
the forcing of molten rock into fissures or between strata of an earlier rock formation
the veins of igneous rock that run in the same direction of the strata.
the veins of igneous rock that run perpendicular to the direction of the strata.