volcanism.ppt
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gunung apiTRANSCRIPT
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VOLCANISMis the motion of magma from the internal of the earth
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VOLCANISM CONSISTS OF 2 KINDS
1. Magmatic intrusion is the activty of magma that does not reach to the earths surface
2. Macmatic extrusion is the activtyof magma reach to the earths
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ERUPTIONeruption consists 3 kinds
1. Central eruption that is the movement of magma that discharges from a magma canal2. Linier eruption
is an eruption eruption that happens in the hole that shape of lengthen slot
3. Areal eruptionis an eruption that happens through very big
hole because magmatic kitchen lies very near to the earths surface
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Based on its density, the eruption of volcano can be separated into:
1. Effusive eruption is the eruptive process of volcano in the form of weak explosion, this eruption produce shield volcano
2. Explosive eruption is the eruption of volcano in the form of strong explosion, this eruption produce maar volcano
3. Effusive and explosive eruption combined produce strato volcano
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Signs of volcano will explode : 1. Temperature around crater increases
2. Many source of water become dry
3. It often happens earthquakes
4. Many animals that lie in the peak of the mountain move and run to find a cold place
5. It often heard the sound of thunder form inside of volcano
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Topic Three
Details about this topic Supporting information and
examples How it relates to your audience
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Real Life
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Sympathize with the audience’s situation if appropriate
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What This Means
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Summarize key points you want your audience to remember
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Next Steps
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