Download to read offline
More Related Content
Similar to ELS-Q1-M4-Rocks, Kinds and Structures.pptx
ELS-Q1-M4-Rocks, Kinds and Structures.pptx
- 2. Quiz 1. ________make upthe rocks beneath your feet, the soil that supports plants, and the deep rock of Earth’s mantle. 2. ________is the study of the chemistry of minerals, crystals structures and their physical and optical properties. 3. ________ is a person who studies minerals.
- 3. Quiz 4-8. What arethe five characteristics of Minerals Naturally occurring, inorganic, homogenous, chemical composition, crystalline pattern 9-15 What the physical properties of minerals?
- 4. Quiz 9-15 What thephysical properties of minerals? Color, streak, cleavage, luster, hardness, diaphaneity, tenacity
- 5. ROCKS: Types &Properties After going through this module, you are expected to: 1. identify the three types of rocks; 2. classify rocks as to igneous, sedimentary and metamorphic rocks; and 3. appreciate the importance of rocks in our daily life.
- 6. Rocks is anaturally occurring solid aggregate of one or more minerals. The aggregate minerals forming the rocks are held together by chemical bonds. Grains can be different in color, texture, and sizes.
- 7. Petrology Petrology isthe scientific study of rocks. Petrologists classify rocks based on how they were formed.
- 8.
- 9. Three Types ofRocks IGNEOUS ROCKS formed from hardening and crystallization of magma or molten material that originates deep within the earth. Latin ignis means fire
- 10. Kinds of IgneousRocks
- 11. Two types ofIgneous rock A. Extrusive/Volcanic rock - forms when magma makes its way to Earth’s surface as lava and then cools. The crystals are very small (fine grained) since the cooling process is fast.
- 12. Two types ofIgneous rock B. Intrusive/Plutonic - It cools slowly beneath the Earth surface and are created by magma. The intrusive igneous rocks have very large crystals (coarse grained).
- 13. Classification of Igneousrock 1. Composition FELSIC - light in color; feldspar and silicates MAFIC - dark in color; made up of magnesium and iron INTERMEDIATE – between mafic and felsic ULTRAMAFIC - very dark color
- 14. Classification of Igneousrock 2. Texture- overall appearance of rock Aphanitic - fine grained Phaneritic- coarse grained Porphyritic- large crystals with small crystals Glassy- non-ordered solid from rapid quenching Pyroclastic- composite of ejected fragments
- 15. Three Types ofRocks SEDIMENTARY ROCKS provide information about surface conditions that existed in the Earth’s past. Particles of sand, shells, pebbles, and other fragments of materials called sediments, accumulate in layers and over long period of time harden into rocks.
- 16. Compaction-due toincrease of pressure of layered sediments it bind together to form the sedimentary rocks.
- 17. Three types ofSedimentary Rocks Clastic Sedimentary rock - formed from accumulation of clasts: little pieces of broken rocks and shells. Examples: conglomerate, breccia, sandstone, shale
- 18. Three types ofSedimentary Rocks Chemical sedimentary rocks - formed when dissolved minerals precipitate from a solution. Example: Halite - formed when a body of seawater becomes closed off and evaporates.
- 19. Three types ofSedimentary Rocks c. Organic sedimentary rocks - rocks formed from the accumulation of animal debris. Example: Coal - composed of organic matter in the form of plants fragments.
- 20. Three Types ofRocks METAMORPHIC ROCKS - forms from pre-existing rocks: either metamorphic, igneous, sedimentary - Formed from the exposure of sedimentary or igneous rocks to high pressure, high temperature, or both, deep within Earth’s surface
- 21. Kinds of MetamorphicRocks
- 22. Metamorphic Rocks 2 typesof Metamorphism 1. Regional-due to changes in pressure and temperature over large region of the crust 2. Contact-mainly by heat due to contact with magma
- 23. Metamorphic Rocks Classifications: a. Texture- refers to the size arrangement ad grains within the rock. b. Foliation - any planar arrangement of mineral grains or structural features within the rock.
- 24. Metamorphic Rocks Classifications: Foliated -appeared banded or layered, contains crystals Example: mica Non-foliated - made up of only few minerals
- 25. Rock Cycle is abasic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous.
- 26. Activity A. Fill inthe table below by providing basic information about the types of rocks. You may refer to the words in the box below
- 27. Activity A. Fill inthe table below by providing basic information about the types of rocks. You may refer to the words in the box below WORD LISTS Lithification pumice clastic Metamorphism sandstone intrusive Cooling andesite extrusive Cementation slate non- clastic Deposition marble contact
- 28. Activity B. Fill inthe Venn Diagram to determine the similarities and differences of the three types of rocks.