1 / 45

Internal Forces and Climate

Internal Forces and Climate. I. Introduction. I. Introduction. Erosion rate: 14 cm per 1000 years. Erosion rate: 4 cm per 1000 years. I. Introduction. Erosion rate: 4 cm per 1000 years, or 0.000131 ft/yr Rate x Time = Distance. I. Introduction.

paniz
Download Presentation

Internal Forces and Climate

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Internal Forces and Climate

  2. I. Introduction

  3. I. Introduction Erosion rate: 14 cm per 1000 years Erosion rate: 4 cm per 1000 years

  4. I. Introduction Erosion rate: 4 cm per 1000 years, or 0.000131 ft/yr Rate x Time = Distance

  5. I. Introduction Erosion rate: 4 cm per 1000 years, or 0.000131 ft/yr Rate x Time = Distance .000131 ft * Time = 20,000 ft yr Time = ???

  6. I. Introduction Erosion rate: 4 cm per 1000 years, or 0.000131 ft/yr Rate x Time = Distance .000131 ft * Time = 20,000 ft yr Time = 152 million years

  7. I. Introduction Erosion rate: 4 cm per 1000 years, or 0.000131 ft/yr Rate x Time = Distance .000131 ft * Time = 20,000 ft yr Time = 152 million years

  8. II. The endogenic effect A. Overview

  9. II. The endogenic effect “The difference between the two masses represent a balance in endogenic mechanics” A. Overview

  10. Archimede’s Principle: An object is immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object.

  11. II. The endogenic effect • Epeirogeny “uplift or depression on a regional scale, with minimal disruption of original rock structure” e.g.: isostacy

  12. C. Orogeny and Tectonic Geomorphology

  13. D. Volcanism

  14. D. Volcanism Two overlying controls: Silicon content of magma Temperature of magma

  15. D. Volcanism 1. Lava Plains and Plateaus

  16. D. Volcanism Lava Plains and Plateaus 2. Shield Volcanoes

  17. Shield volcanoes • Tall volcanoes –3 or 4 miles tall • Wide base – Diameter of ten of miles

  18. Mauna Loa, HI

  19. Mauna Loa, HI

  20. D. Volcanism Lava Plains and Plateaus Shield Volcanoes 3. Cindercone Volcanoes

  21. Cinder cones • Short, narrow cone, • Steep sides • Violent eruptions

  22. Lassen Volcanic National Park, CA

  23. Lassen Volcanic National Park, CA

  24. D. Volcanism Lava Plains and Plateaus Shield Volcanoes Cindercone Volcanoes 4. Composite Volcanoes

  25. Composite or stratovolcanoes – • Tall volcanoes – 1 to 2 miles high • Violent eruptions

  26. Mayon Volcano, Phillippines

  27. Mt. St. Helens, WA

  28. III. Climatic Geomorphology A. Overview “Examine the relationship between landforms and climate”

  29. CLIMATE-PROCESS SYSTEM

  30. MORPHOGENETIC SYSTEM

  31. III. Climatic Geomorphology • Overview • Geomorphic Response “response time”

  32. III. Climatic Geomorphology • Overview • Geomorphic Response “response time”

  33. Milankovitch Cycles Orbital Eccentricity 100,000 yr cycle Axial Tilt 41,000 yr cycle Precession of Equinoxes (wobble effect) 11,000 yr cycle

More Related