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Gold/Mining/Energy : ECHARTERS
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To: brian krause who wrote (3207)9/6/1999 12:08:00 PM
From: Bill Jackson  Read Replies (1) of 3744
 
Brian, The magnetic field produces a more or less spherical field that gathers and directs the solar wind ions into a zone called the magnetosphere and the earth goes through the solar wind shielded by the zone. It gathers some solar ions and gets some ablated by the wind but at a very slow rate. With no magnetic field the upper atmosphere would be scoured by the high speed ions and this would indeed cause larger losses. The lower atmosphere would extend upwards to replace this and so on. I do not know the time scale of this, but with no magnetic field we would have lost all the gases, even water from the earth over the last 4 billion years. Most outgassing are now CO2 and SO2 with methane, helium etc as traces so we would have a sparse unbreathable atmosphere.
Bill
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