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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 |