2 THREE TYPES OF ROCKS.pptx IGNEOUS, SEDIMENTARY, AND METAMORPHIC

The presentation on the three types of rocks—igneous, sedimentary, and metamorphic—provides an insightful overview of the rock cycle and the processes that form each rock type. Igneous rocks are created through the cooling and solidification of molten magma or lava, resulting in a wide variety of textures and compositions. Sedimentary rocks form from the accumulation and compaction of mineral and organic particles, often displaying distinct layers that record Earth's history. Metamorphic rocks are produced when existing rocks are subjected to intense heat and pressure, altering their structure and mineral composition without melting. This presentation highlights the unique characteristics and formation processes of each rock type, emphasizing their importance in understanding Earth's geology.

1. THREE TYPES of ROCKS and PROPERTIES

2. Acheology Astronomy Volcanism Geology Construction Mining and Engineering What do they have in common?

3. Acheology Astronomy Volcanism Geology Construction Mining and Engineering All of these are related to rocks in some way!

4. ROCKS Formed when the molten planet Earth cooled down 4 billion years ago.

5. Now, there are hundred of varieties of rocks, formed thru various earth processes, and they are categorized into THREE, and are cycled in the planet.

6. OBJECTIVE Classify rocks into igneous, sedimentary, and metamorphic

7. ROCKS Naturraly occuring solid formation of minerals Mixture of minerals Organic/inorganic Natural Solid MONS

8. IS COAL A ROCK?

9. IS COAL A ROCK? Mixture of minerals Organic/inorganic Natural Solid

10. IS COAL A ROCK? Mixture of minerals Organic/inorganic Natural Solid

11. ARE DEAD CORALS ROCK?

12. ARE DEAD CORALS ROCK? Mixture of minerals Organic/inorganic Natural Solid

13. ARE DEAD CORALS ROCK? Mixture of minerals Organic/inorganic Natural Solid

14. How they form Texture Grain size Mineral composition ROCKS ARE CLASSIFIED BY:

15. (people who study rocks) Petrologists classify rocks mainly on how they are formed.

16. THREE TYPES of ROCKS and PROPERTIES

17. Igneous Rock cooling and crystallization of magma (rough, non acidic, no layers)

18. Sedimentary Rock Sedimentary rock Is formed when sediment is compressed in layered and hardened (rounding shape, grain, layers)

19. Metamorphic Rock Metamorphic rocks are formed by the high temperature and pressure inside the earth (fine texture, visible crystals, can have layers)

20. Igneous Rock all rocks that form by cooling and/or crystallization of molten material (magma/lava) within the crust or at the Earth’s surface.

21. Two Types of Igneous Rock INTRUSIVE IGNEOUS ROCK form inside the Earth when magma cools slowly beneath the surface. Because of the slow cooling, they have large crystals. Example: Granite.

22. EXTRUSIVE IGNEOUS ROCK form on the surface of the Earth when lava cools quickly after a volcanic eruption. Due to the quick cooling, they have small crystals or none at all. Example: Basalt. Two Types of Igneous Rock

23. BASALT GABBRO Examples of Igneous Rock

24. GRANITE OBSIDIAN Examples of Igneous Rock Mt. Rushmore

25. PUMICE PEGMATITE Examples of Igneous Rock

26. Classification of Sedimentary Rock CLASTIC- accumulation of fragments ORGANIC - related to living orgnanisms/fossils CHEMICAL - solid formation of chemical substances ob bottom layers.

27. CLASTIC SEDIMENTARY ROCKS SHALE- made from small sediments clay, silt. 2. CONGLOMERATE- made from large sediments. 3. SAND STONE- made from medium sediments.

28. ORGANIC SEDIMENTARY ROCKS CHALK- formation of marine fossils. 2. COAL- accumulation of burried plant fossils.

29. CHEMICAL SEDIMENTARY ROCKS LIMESTONE- Calcium Carbonate 2. HALITE- Sodium Chloride

30. Metamorphic Rock Rocks formed when pre-existing rocks are subjected to high temperatures/pressure.

31. Metamorphic Textures FOLIATED- bands of minerals in parallel layers, usually transformed more by pressure than heat. NON-FOLIATED- without bands, usually transformed more by heat than pressure.

32. Metamorphic ROCKS formed from parent rocks, which are the original rocks that underwent extreme heat and pressure.

33. Metamorphic ROCKS formed from parent rocks, which are the original rocks that underwent extreme heat and pressure.

34. Metamorphic ROCKS formed from parent rocks, which are the original rocks that underwent extreme heat and pressure.

35. METAMORPHIC

36. SEDIMETARY

37. IGNEOUS

38. THANK YOU FOR LSITENING. GOD BLESS US ALL!