Young Sun blasted Methane out of Inner System

[Widdekind]

The Inner Solar System is depleted in both Hydrogen*, and Carbon**. The chemical combination of Hydrogen & Carbon, Methane (CH₄), was a principal component of Earth's Primordial Volcanic Degassings (~4.5 to 4.4 Ga)***. And, in the Proto-Solar Nebula, Methane Ices only froze-formed beyond about 30 AU#. So, surely, Methane only existed as a Gas, in the Inner Solar System.

*

W.T. Sullivan III & J.A. Baross.

Planets and Life

, pg. 88.

See also

:

Attachment 1

**

ibid

., pg. 463.

See also

:

Attachment 2

***

ibid

., pg. 101.

#

Carroll & Ostlie.

Introduction to Modern Astrophysics

(

1996 ed

.), pg. 893.

 

 

CONCLUSION (?):

 

During the Sun's T-Tauri Phase, for roughly the first 10 million years of its existence, "the gas & dust of the Proto-Planetary Disk were expelled... all that remained were the Protoplanets, or the largest Embryonic Planets"*. Perhaps the young Sun's vigorous Solar Wind expelled copious quantities of Methane Gas, from the Inner Solar System, simultaneously explaining the depletions of Hydrogen & Carbon from that region.

*

F.Casoli & T.Encrenaz.

The New Worlds

, pg. 72.

[steevey]

Before the Sun's solar wind blew the dust away, Earth was already in a rocky formation and was forming an atmosphere. There is no contradiction between Earth having methane and the Sun expelling it from the solar system in outer space.

[alpha2cen]

Figure 3.11 is good data. But there is no asteroid hydrogen/deuterium ratio data. Recently there is a paper about asteroid belt water near the orbit of the Jupiter.