Re: RE: Deccan Traps revisited

[Roudebush@aol.com]

Dear Readers:
     I am sure the Decaan Traps are well documented as respects to its age
and petrology.  However, modeling and explaing them is difficult.  I am no
expert on the Deccan traps but large lava fields are clearly visiable on or
terrestial neighbors (moon, Mars and Venus).  Sure these planets do not have
plate tectonics as the Earth but I have felt, like many planetary geoligist,
that they can provide substantial information about how the Earth's crust and
mantel interact.  It seems clear from these planets that meteor impacts,
which has already been througly argued, has no effect on the crust. Mars,
especially, demostrates this with its northern hemisphers being fairly new
while the southern hemisphers is old crust with many craters.  Perhaps by
looking at the terristial planets we can better understand the mantle: 1)The
mechanics behind hotspots and their relationship to depleted mantel material.
2) More sesmic tomography data of our planet,  Mars & Venus. 
     Just something to think about.

                                                     Jon