Dome Mountains Definition

a. WHERE DO MOST MOUNTAINS FORM? MOST MOUNTAINS FORM AT OR NEAR PLATE BOUNDARIES. b. IDENTIFY THE THREE MAIN TYPES OF MOUNTAINS. THE THREE MAIN TYPES OF MOUNTAINS ARE FOLD MOUNTAINS, FAULT-BLOCK MOUNTAINS, AND VOLCANIC MOUNTAINS. c. WHY ARE DOME MOUNTAINS NOT ITS OWN CATEGORY OF MOUNTAIN? (THE GRAPHIC ON C65 MAY BE A CLUE.) DOME MOUNTAINS ARE NOT A SEPARATE CATEGORY OF MOUNTAIN. THIS IS BECAUSE THEY ARE CONISDERED TO BE A SPECIAL TYPE OF VOLCANIC MOUNTAIN. THE GRAPHIC ON C65 HELPS ME UNDERSTAND THIS BECAUSE I CAN SEE THE LINES FROM THE TOP “MOUNTAIN FORMATION” TO FOLD, FAULT-BLOCK, AND VOLCANIC, BUT THE LINE FOR DOME COMES FROM THE VOLCANIC SECTION. THIS SHOWS ME THAT IT IS A TYPE OF VOLCANIC MOUNTAIN AS OPPOSED TO A NEW CATEGORY OF MOUNTAIN. d. HOW ARE DOME MOUNTAINS DIFFERENT FROM FOLD, FAULT-BLOCK, AND THE TYPICAL VOLCANIC MOUNTAINS? DOME MOUNTAINS ARE DIFFERENT THAN FOLD, FAULT-BLOCK, AND THE TYPICAL VOLCANIC MOUNTAIN. THESE OTHER TYPES OF MOUNTAINS FORM AT OR NEAR PLATE BOUNDARIES. DOME MOUNTAINS FORM IN THE MIDDLE OF A PLATE AWAY FROM ANY CRACKS OR FAULTS IN THE EARTH’S SURFACE. e. EXPLAIN THE TYPE OF FORCE THAT CREATES EACH TYPE OF MOUNTAIN. GIVE AN EXAMPLE OF EACH TYPE OF MOUNTAIN. EACH MOUNTAIN IS CREATED BY A SPECIFIC FORCE ACTING IN A UNIQUE WAY. FOLD MOUNTAINS FORM WHEN TWO PLATES PUSH TOGETHER PUSHING THE EARTH TOGETHER IN THE MIDDLE CREATING FOLDS. THE ANDES ARE AN EXAMPLE OF A FOLD MOUNTAIN. FAULT-BLOCK MOUNTAINS FORM WHERE FAULTS IN THE EARTH OCCUR. WHEN TWO PLATES MOVE APART, A SECTION OF THE EARTH DROPS DOWN CREATING A TYPE OF VALLEY WHILE THE BLOCKS ARE CREATED ON EITHER END. EXAMPLES OF FAULTBLOCK MOUNTAINS INCLUDE THE SIERRA NEVADA IN CALIFORNIA AND NEVADA, THE TETONS IN WYOMING, AND THE HARZ MOUNTAINS IN GERMANY. VOLCANIC MOUNTAINS ARE FORMED WHEN MAGMA IS FORCED OUT OF THE EARTH. AS THIS MATERIALS COOLS ON THE SURFACE IT BUILDS UPON ITSELF CREATING THE MOUNTAIN. MOUNT ST. HELENS IS AN EXAMPLE OF A VOLCANIC MOUNTAIN. DOME MOUNTAINS ARE NOT FORMED NEAR PLATE BOUNDARIES. THEY FORM WHEN MAGMA PUSHES TOWARDS THE SURFACE OF THE EARTH PUSHING UP THE CRUST BUT NOT BREAKING IT. THIS FORCE CREATES A DOME-SHAPED MOUND. f. IN ADDITION TO THE FORCE CREATING THE MOUNTAIN, WHAT OTHER NATURAL FORCE HAS A ROLE IN SHAPING A MOUNTAIN? AFTER A MOUNTAIN IS FORMED BY SOME FORCE ACTING ON THE EARTH’S CRUST, THE LAND IS SHAPED BY ANOTHER FORCE. THIS FORCE IS EROSION. WIND AND WATER CAN CHANGE THE SHAPE OF AN EXISTING MOUNTAIN. THIS IS WHAT HAS CREATED ROUNDED PEAKS IN SOME FOLD MOUNTAINS. IN OTHER MOUNTAINS, THE RESULT COULD BE IRREGULAR PEAKS AND VALLEYS. SOME MOUNTAINS ARE ACTUALLY CREATED SOLEY BY EROSION. THE CATSKILLS IN NEW YORK WERE CREATED FROM EROSION ACTING ON A PLATEAU.