L T R PE O OGI BATUAN I

L T R PE O OGI BATUAN I P A U G UN NG Semester 7, 2017 -2018 [TGS 7404] 2 SKS teori Dr. Hill. Gendoet Hartono

PENDAHULUAN 1 X UTS Berisi tentang latarbelakang, bumi, batuan beku dan batuan gunung api, dan kedudukan di bidang geologi TATAAN TEKTONIK 2 X Berisi tentang tektonik global, regim tektonik, dan peranannya dalam magmatisme dan volkanisme GENERASI MAGMA 2 X Berisi tentang magmatisme, diagram fase KLASIFIKASI 2 X Klasifikasi magma atau afinitas magma Rock Forming Mineral 1 X Kimia Mineral Pembentuk Batuan 1 X Petrologi Batuan Gunung Api Intrusi 2 X Petrologi Batuan Gunung Api Ekstrusi 2 X Alterasi Batuan Gunung Api 1 X UAS

KLASIFIKASI - 1

Geomagmatic systems of Earth

PHYSICAL & CHEMICAL PROPERTIES • An element is a substance that cannot be broken down into other substances (ex. Carbon, Hydrogen, Oxygen). • A compound is a substance made of 2 or more elements that have been chemically combined (ex. Water, carbon dioxide, and table salt).

PHYSICAL & CHEMICAL PROPERTIES • Each substance has a particular set of physical & chemical properties. Their properties can be used to identify a substance or to predict how it will behave. • A physical property is any characteristic of a substance that can be observed or measured without changing the composition of the substance (ex. Density, hardness, melting & boiling points).

PHYSICAL & CHEMICAL PROPERTIES • A chemical property is any property that produces a change in the composition of matter (ex. The ability to burn, combine or react with other substances). • The physical property of liquids called viscosity is the resistance of a liquid to flow. • Because liquids differ in viscosity, some liquids flow more easily than others. • The greater the viscosity of a liquid, the slower it flows (like honey).

VISCOSITY OF MAGMA • The viscosity of magma depends upon its silica content and temperature. • The compound silica (the major component of magma) is made up of particles of the elements oxygen & silicon. • The amount of silica in magma helps to determine its viscosity. The less silica magma contains, the lower its viscosity (flows very easily).

VISCOSITY OF MAGMA • Viscosity increases as temperature decreases. • Pahoehoe is fast-moving, hot lava that has low viscosity. • Lava that is cooler and slower-moving is called aa. Pahoehoe aa

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