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CHAPTER 11.2 PAGES 314- 316 TYPES OF MOUNTAINS. MOUNTAINS THE COLLECTION OF PROCESSES THAT PRODUCE A MOUNTAIN BELT IS CALLED OROGENESIS. MOUNTAINS ARE.

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Presentation on theme: "CHAPTER 11.2 PAGES 314- 316 TYPES OF MOUNTAINS. MOUNTAINS THE COLLECTION OF PROCESSES THAT PRODUCE A MOUNTAIN BELT IS CALLED OROGENESIS. MOUNTAINS ARE."— Presentation transcript:

1 CHAPTER 11.2 PAGES 314- 316 TYPES OF MOUNTAINS

2 MOUNTAINS THE COLLECTION OF PROCESSES THAT PRODUCE A MOUNTAIN BELT IS CALLED OROGENESIS. MOUNTAINS ARE CLASSIFIED BY THE DOMINANT PROCESS THAT FORMED THEM

3 FOLDED MOUNTAINS MOUNTAINS THAT ARE FORMED PRIMARILY BY FOLDING ARE CALLED FOLDED MOUNTAINS. COMPRESSIONAL STRESSES ARE THE MAJOR FORCE THAT FORMS FOLDED MOUNTAINS. EX. THE APPALACHIAN MOUNTAINS

4 FAULT-BLOCK MOUNTAINS LARGE-SCALE NORMAL FAULTS ARE ASSOCIATED WITH STRUCTURES CALLED FAULT-BLOCK MOUNTAINS. THESE MOUNTAINS FORM AS LARGE BLOCKS OF CRUST ARE UPLIFTED AND TILTED ALONG NORMAL FAULTS. EX. SIERRA NEVADA

5 GRABEN NORMAL FAULTING OCCURS WHERE TENSIONAL STRESSES CAUSE THE CRUST TO BE STRECTCHED OR EXTENDED. AS THE CRUST IS STRETCHED, A BLOCK CALLED A GRABEN, WHICH IS BOUNDED BY NORMAL FAULTS, DROPS DOWN.

6 HORSTS GRABENS PRODUCE AN ELONGATED VALLEY BORDERED BY RELATIVELY UPLIFED STRUCTURES CALLED HORSTS.

7 DOMES THE BLACK HILLS OF WESTERN SOUTH DAKOTA FORM A LARGE DOMED STRUCUTRE THOUGHT TO BE FORMED BY UPWARPING. WHEN UPWARPING PRODUCES A CIRCULAR OR ELONGATE STRUCTURE, THE FEATURE IS CALLED A DOME.

8 BASINS DOWNWARPED STRUCTURES HAVING A CIRCULAR SHAPE ARE CALLED BASINS.

9 QUESTIONS WHAT ARE FAULT-BLOCK MOUNTAINS ASSOCIATED WITH? HOW ARE MOUTAINS CLASSIFIED? WHAT IS A HORST? WHAT IS A GRABEN? WHAT IS A DOME? WHAT ARE BASINS? WHAT ARE FOLDED MOUNTAINS?


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