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Chapter 7 How Earth Changes After Time-Libby

Published on Nov 18, 2015

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PRESENTATION OUTLINE

FOLD MOUNTAIN

A MOUNTAIN MADE UP OF MOSTLY ROCK LAYERS FOLDED BY BEING SQUEEZED TOGHETHER

FAULT BLOCK MOUNTAIN

A MOUNTAIN MADE BY HUDE TILTED ROCKS SEPARATED FROM SURROUNDING ROCKS BY FAULTS
Photo by Ken Lund

WEATHERING

THE BREAKING DOWN OF ROCKS INTO SMALLER PIECES BY A NATURAL PROCESS
Photo by bumeister1

EROSION

THE PICKING UP AND REMOVAL OF ROCKS PARTICALS

HUMUS

MATERIAL IN THE SOIL FORMED BY THE BREAKDOWN OF ANIMAL AND PLANT MATERIAL
Photo by Dru!

SOIL HORIZON

ANY OF THE LAYERS OF THE SOIL FROM THE SURFACE TO THE BEDROCK BELOW

GROUND WATER

WATER THAT SOAKS IN THE SOIL AND ROCK BY COLLECTING IN SPACES BETWEEN ROCK PARTICLES

MASS WASTING

THE DOWNHILL MOVEMENT OF EARTH MATERIAL CAUSED BY GRAVITY

DEPOSITION

THE DROPPING OF OF SEDIMENT
Photo by subarcticmike

GLACIER

A HUGE SHEET OF ICE AND SNOW THAT MOVES SLOWLY ACROSS THE LAND
Photo by yannboix

TILL

A JUMBLE OF MANY SIZES OF SEDIMENT DEPOSITED BY A GLACIER
Photo by prawnpie

MORAINE

A DEPOSIT OF DIFFERENT SIZES OF SEDIMENT IN FRONT OF OR ALONG THE SIDES OF A GLACIER
Photo by BradWilke

MINERAL

A NATURAL OCCURRING SOLID IN EARTHS CRUST WITH A DEFINITE STRUCTURE AND COMPOSITION
Photo by just.Luc

IGNEOUS ROCK

A ROCK THAT FORMS WHEN HOT,LIQUID LAVA COOLS AND HARDENS INTO A SOLID
Photo by Ron Schott

SEDIMENTARY ROCK

A ROCK THAT FORMS FROM PIECES OF OTHER ROCK THAT ARE SQUEEZED OR CEMENTED TOGETHER
Photo by arbyreed

METAMORPHIC ROCK

A ROCK FORMED BY HEAT,PRESSURE,OR A CHEMICAL REACTION
Photo by mikebaird

ROCK CYCLE

ROCKS CONTINUALLY CHANGING FROM ONE KIND INTO ANOTHER REPEATING PROCESS
Photo by wockerjabby

SUPERPOSITION

IN A SERIES OF ROCK LAYERS THE OLDEST IS ON THE BOTTOM AND YOUNGEST ON TOP
Photo by brewbooks

RELATIVE AGE

THE AGE OF A ROCK COMPARED WITH ANOTHER ROCK
Photo by mikelehen

GEOLOGICAL COLUMN

A LIST OF THE ROCK LAYERS FROM TOP TO BOTTOM
Photo by Darkroom Daze

FOSSIL

THE REMAINS,TRACE,OR IMPRINT OF A LIVING THING PRESERVED IN EARTHS CRUST

INDEX FOSSIL

THE REMAINS OF A LIVING THING THAT. WAS WIDESPREAD BUT LIVED A SHORT TIME

HALF-LIFE

THE TIME IT TAKES FOR HALF THE MASS TO DECAY
Photo by ukslim

ABSOLUTE AGE

THE AGE OF A ROCK IN YEARS
Photo by Alaskan Dude

ERA

ONE OF THE FOUR LONG STRETCHES OF TIME IN EARTH'S HISTORY