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Early Sun, early Earth, early life

… early GISS

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Stanley Miller

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Solar Nebula O2 O3 l.o.d.

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Model

Kepler’s Law, conservation of angular momentum

Data

N= # of Solar days in a year

S= # of Solar days in a Synodic month

Output

l.o.d.

Earth’s spin

Earth-Moon distance

Earth’s moment of inertia

Earth’s energy loss

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The basic premise is that 180 million to 200 million years ago, the entire land mass of the Earth was in fact connected. This connected land mass is known as Pangea and is thought to have looked like this:

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Over time the plates drifted apart and individual continents gained their identity.

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Summary: from Bivalve to the MOC Kepler’s third law Angular Momentum Conservation Bivalve

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2 -1ρ 2

εK = Γ O(1cm s ) = 1MunkN

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Oceanic diapycnal diffusivity MOC

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