1 / 51

Rocks and the Rock Cycle:

Rocks and the Rock Cycle:. Rocks and the Rock Cycle:. Can rocks change from one type to another?. What is a rock?. What is a rock?. A rock is a solid, naturally occurring chunk in the lithosphere that was melted, cemented, or pressed together. What is a rock?.

jhardesty
Download Presentation

Rocks and the Rock Cycle:

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. Rocks and the Rock Cycle:

  2. Rocks and the Rock Cycle: Can rocks change from one type to another?

  3. What is a rock?

  4. What is a rock? • A rock is a solid, naturally occurring chunk in the lithosphere that was melted, cemented, or pressed together.

  5. What is a rock? • A rock is a solid, naturally occurring chunk in the lithosphere that was melted, cemented, or pressed together. • May or may not contain minerals.

  6. Classifying rocks:

  7. Classifying rocks: • Texture: Texture is a rock’s grain structure.

  8. Classifying rocks: • Texture: Texture is a rock’s grain structure. • Geologist’s break up a rock’s grain structure into three categories.

  9. Classifying rocks: • Texture: Texture is a rock’s grain structure. • Geologist’s break up a rock’s grain structure into three categories. • Grain size

  10. Fine grain: Slate

  11. Coarse grain: Diorite

  12. No visible grain: Flint

  13. Classifying rocks: • Texture: Texture is a rock’s grain structure. • Geologist’s break up a rock’s grain structure into three categories. • Grain size • Grain shape

  14. Rounded grain: Conglomerate

  15. Jagged grain: Breccia

  16. Classifying rocks: • Texture: Texture is a rock’s grain structure. • Geologist’s break up a rock’s grain structure into three categories. • Grain size • Grain shape • Grain pattern

  17. Non-banded grain: Quartzite

  18. Banded grain: Gneiss

  19. Types of Rocks: • Igneous rocks:

  20. Types of igneous rocks: Basalt

  21. Types of igneous rocks: Obsidian

  22. Types of Rocks: • Igneous rocks: This type forms from the cooling of magma or lava.

  23. Types of Rocks: • Igneous rocks: This type forms from the cooling of magma or lava. • Extrusive igneous rocks: Formed from lava that hardened on the surface of the Earth.

  24. Extrusive igneous: Rhyolite

  25. Types of Rocks: • Igneous rocks: This type forms from the cooling of magma or lava. • Extrusive igneous rocks: Formed from lava that hardened on the surface of the Earth. • Intrusive igneous rocks: Formed from magma that hardened beneath the surface of the Earth.

  26. Intrusive igneous: Porphyry

  27. Igneous rocks: Pumice

  28. Types of Rocks: • Sedimentary rocks:

  29. Types of Rocks: • Sedimentary rocks: This type forms when particles of other rocks or the remains of plants and animals are pressed and cemented together.

  30. Types of Rocks: • Sedimentary rocks: This type forms when particles of other rocks or the remains of plants and animals are pressed and cemented together. • Clastic: Made of small rocks squeezed together.

  31. Clastic Sedimentary rocks: Shale

  32. Types of Rocks: • Sedimentary rocks: This type forms when particles of other rocks or the remains of plants and animals are pressed and cemented together. • Clastic: Made of small rocks squeezed together. • Organic: Made of the remains of plants or animals.

  33. Organic sedimentary rocks: Coquina

  34. Types of Rocks: • Sedimentary rocks: This type forms when particles of other rocks or the remains of plants and animals are pressed and cemented together. • Clastic: Made of small rocks squeezed together. • Organic: Made of the remains of plants or animals. • Chemical: Made of minerals that are dissolved in a solution and crystallize.

  35. Chemical sedimentary rocks: Tufa

  36. Types of Rocks: • Metamorphic rocks: Formed from any rock by heat and pressure deep beneath the Earth’s surface.

  37. Types of Rocks: • Metamorphic rocks: Formed from any rock by heat and pressure deep beneath the Earth’s surface. • Foliated rocks: Grains arranged in parallel layers or bands.

  38. Foliated rocks: Phyllite

  39. Types of Rocks: • Metamorphic rocks: Formed from any rock by heat and pressure deep beneath the Earth’s surface. • Foliated rocks: Grains arranged in parallel layers or bands. • Non-foliated rocks: Grains are arranged randomly.

  40. Non-foliated rocks: Hornfels

  41. Minerals

  42. Minerals What are minerals and what do they look like?

More Related