GEOL 21062 Lecture Notes - Lecture 5: Great Dark Spot, Multiple Working
31 Jan 2020
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Document Summary
Nebular theory: planets formed at the same time from cloud of dust. & gases called a nebula : 80% hydrogen, 15% helium, 5% heavier elements. Heavy elements sank to the centers of planets, forming the cores of planets. The process of separating elements according to their mass and density is called: chemical differentiation . Small channel networks located on steep, poleward-facing, high latitude slopes on mars, may have been formed by recent outflows of near surface hydrothermal brines, providing potentially habitable environments for a subsurface biosphere on mars today. Saturn u similar composition to jupiter u u u but twice as far from sun. Uranus u twin w/ neptune u u u. Pluto u 248 earth years to go around sun once u u. Charon, its moon, is over half pluto"s size. Construction of a tentative (untested) explanations for things observed.
