more geog 3 notes - - - - Outer and Inner core are both...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
- Outer and Inner core are both iron and nickel, but outer is liquid, outer has mag. field - Lower mantle is solid, with oxides of iron magnesium and silicon - Upper mantle is kinda - Asthenosphere is where the magma is, molten – astheno = weak - Lithosphere = uppermost solid portion of mantle and crust - Guternberg discontinuity: an uneven broad transition zone between the outer core and the lower mantle - Oceanic crust is denser, includes basalt and lava - Mafic = quick, not explosive; felsic = explosive, slow at getting things done - Craton = nucleus of rock of a continent - - Phanerozoic – youngest, Protorezoic – second, Archean – oldest - Mineral = inorganic compound mostly carbon and silicates - Igneous – crystallized magma; if it cools quickly it is fine grained and extrusive, if it cools slowly it is coarse and intrusive o Intrusive – plutons, batholiths, laccoliths = granite - bad guys cool slowly o Extrusive – lava/basalt , obsidian, pumice - Sedimentary – lithification = cementation, compaction, hardening
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

more geog 3 notes - - - - Outer and Inner core are both...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online