GEO 110 Lecture Notes - Lecture 1: Banff National Park, Seismic Wave, Seismometer
5 Dec 2016
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Document Summary
Banff national park was the world"s second park to open. Exotic species are not native to an area but are not dangerous to the environment, invasive species are not native and they do hurt the environment. Temp at the core of the earth is 6000 c and pressure estimates is 3. 5 million atmospheres. Seismic waves: a vibration that moves through the earth. Body waves: seismic waves coming from the inside of the earth and spreading out to all directions from a disturbance. A sideways wave that vibrates stuff side by side. A p wave is like a slinky while an s wave is like waving a rope. Seismograph: the velocity of both waves is determined by the density and rigidity of the material. Earth"s core: mostly iron; consists of an outer liquid zone and inner solid zone. Mantle: rock layer of the earth, composed of ultramafic igneous rock of silicate minerals. Crust: outer layer, composed mostly of silicate minerals.
