PPT-ROCK IS AN AGGREGATE OF MINERALS.ROCK HAS BEEN DEFINED AS COHERENT,CONSOLIDATED AND COMPACT

CLASSIFICATION OF ROCKS ON THE BASIS OF MODE OF FORMATION ROCKS ARE CLASSIFIED INTO THREE CATEGORIES 1 IGNEOUS ROCKS 2 SEDIMENTARY ROCKS 3 METAMORPHIC ROCKS   ROCKS IGNEOUS ROCKS   IGNEOUS ROCKS ALSO KNOWN AS PRIMARY ROCKS ARE FORMED BY SOLIDIFICATION OF MAGMA MAGMA IS MOLTEN ROCK MATERIAL CONSISTING OF LIQUIDGAS AND CRYSTALIGNEOUS ROCKS ARE RECODS OF THERMAL HISTORY OF EARTH. Volcanic Petrology in Limited Time. Jim Nicholls: Calgary, Alberta, Canada. http://www.gtwist.ca. The Mineralogical Sciences:. Endangered topics in geoscience curricula. One Contributing Factor. Students specialize as undergraduates:. By Mr. Krall. What is a Rock?. A . rock. is a mixture of minerals.. Rocks form and reform through the . rock cycle. . . Lava/Magma. THE ROCK CYCLE. Igneous Rock. Igneous . (. ig. -nee-us) . rock. forms when molten rock cools and solidifies.. Unit: Earth & Space. Observatory: Chapter 6. The Lithosphere . & . The Hydrosphere. It is 6300 km from the Earth’s surface to its centre.. The hard shell is, on average, 100 km thick. General Information. Planet Earth. Unit 5 . Topic 1 - Minerals. Minerals. Rocks contain naturally . occurring, . non-living . minerals. Most . minerals are rare and can be . elements.  (. pure substances. ) or.  . compounds . 14. Compare and contrast ordinary wells and artesian wells.. What is porosity?. What is permeability?. Today, we will describe how water chemically weathers rock.. Chemical Weathering. As groundwater passes through permeable rock, minerals in the rock dissolve.. Rocks are classified by how they are formed, their composition, and texture. Rocks change over time through the rock cycle. TYPES OF ROCKS. ROCKS ARE DIVIDED INTO THREE GROUPS BASED ON HOW THE ROCKS . What are minerals?. Common rock-forming minerals. Physical properties of minerals. Basic rock types. The rock cycle. Minerals . Natural . Solid. Atoms arranged in orderly repeating 3D array: . crystalline. 2. Major Rock Groups. Igneous. Formed from . molten rock (magma/lava) that has cooled. Literally means “from fire”. 1. Extrusive . igneous rock is formed from lava (on earth’s surface) and tends to solidify quickly. Activator How do rocks relate to minerals? Rock vs Mineral? Decide if each object shown better represents a rock or a mineral. Hold up the rock side or mineral side of your page. Example: Rock SCience. Mineral Qualities. What is a mineral?. To be a mineral a substance must have ALL of the following qualities. occur naturally. - . formed by nature, not by man. form from an inorganic process- . Rock thin sections. Rock thin sections are slices of rock glued onto microscope slides and polished until they are about 30μm thick (about the thickness of human hair).. The microscope used to study minerals in rock thin sections.. Metamorphic ROCKS. Geo 281: geology for engineers. Geology and Geophysics Department. King Saud University. What is metamorphism. Metamorphism . is the . transformation of . one rock type into another.. of . Minerals. UNIT - 5. Minerals can be found . throughout the world in the earth's crust . but usually in such small amounts that they not worth extracting. . Only . with the help of . certain geological processes are minerals concentrated into economically viable deposits. . The Rock Cycle. Defined: . The process by which all rocks on Earth are formed and how basic Earth materials are recycled over time . Note: A very, very long time. The Rock Cycle. Three main types of rock on Earth.