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HTOWN
WEATHERING/EROSION
Term | Definition |
---|---|
WEATHERING | BREAKING DOWN OF SEDIMENTS |
CHEMICAL WEATHERING | CHANGES AS IT BREAKS DOWN |
MECHANICAL OR PHYSICAL WEATHERING | DOES NOT CHANGE AS IT BREAKS DOWN |
DEPOSTION | DROPPING OF SEDIMENTS |
EROSION | MOVING OF SEDIMENTS EITHER BY WIND, WATER, GLACIER OR GRAVITY |
U SHAPE | VALLEY CREATED OR CARVED BY GLACIER |
ICE WEDGING | CONSTANT FREEZING AND THAWING OF WATER BREAKING DOWN ROCK OVER TIME |
OXIDATION | CAUSES RUST |
TALUS SLOPE | ROCKS AT THE BOTTOM OF A SLOPE |
CURVED SCAR | WHERE ORIGINAL LAND USED TO SIT BEFORE A LANDSLIDE |
STRIATIONS | GLACIAL SCRATCHES ON ROCK |
HUMUS | RICH, ORGANIC MATTER IN THE TOP LAYER OF THE SOIL |
CREEP | SLOW, GRAVITY EROSION CAUSING THINGS TO LEAN BY ICE WEDGING |
CARBONIC ACID | H20 ABSORBS FROM CO2 IN AIR AND WHEN IT SEEPS IN GROUND CARBONIC ACID IS FORMED AND IT REACTS WITH MANY MINERALS |
ABRASION | WIND BLOWN SEDIMENTS CUT AND POLISH EXPOSED ROCK SURFACES |
EARTH'S WATER BALANCE | AMOUNT OF PRECIPITATION= AMOUNT EVAPORATED |
DISCHARGE | VOLUME OF WATER IN STREAM FLOWING PAST A CERTAIN POINT IN A GIVEN TIME |
GRADIENT | SLOPE |
MEANDERS | CURVES IN A RIVER |
TRIBUTARY | WHEN A STREAM EMPTIES INTO ANOTHER STREAM |
BED LOAD | STREAM'S LOAD OF SOLID MATERIAL (ROCK) THAT IS TOO HEAVY TO BE CARRIED |
DELTA | BUILD UP OF SEDIMENT FORMED WHERE A STREAM ENTERS A LAKE OR OCEAN |
ALLUVIAL FAN | SEDIMENT RUN OFF AT THE BOTTOM OF A MOUNTAIN |
V SHAPED | VALLEY CREATED OR CARVED OUT BY MOVING WATER |
FLOODPLAIN | SIDE TO SIDE CUTTING OF A STREAM THAT PRODUCES A FLAT VALLEY |
DRAINAGE BASIN | LAND AREA THAT CONTRIBUTES WATER TO A STREAM- ROANOKE RIVER DUMPS INTO THE NORTH CAROLINA BASIN |
POROSITY | SPACES BETWEEN SEDIMENTS |
PERMEABLITY | THE ABILITY FOR WATER TO PASS THROUGH |
ZONE OF SATURATION | AREA IN GROUND FILLED WITH WATER |
ZONE OF AERATION | AREA IN GROUND FILLED WITH AIR |
WATER TABLE | SEPARATES THE ZOA AND ZOS |
SPRING | WHERE WATER TABLE MEETS THE SURFACE |
GROUNDWATER | WATER BELOW THE WATER TABLE |
GEYSER | SPRING THAT ERUPTS PERIODICALLY |
KARST | AREAS UNDERLYING WITH CAVES |
STALACTITE | CALCITE DRIPPING FROM CAVE SEILING |
STALAGMITE | CALCITE DRIPPINGS DROPPED FROM CEILING TO GROUND IN CAVES |