Spiral arms, comets and terrestrial catastrophism

Details Spiral arms, comets and terrestrial catastrophism Spiral arms, comets and terrestrial catastrophism

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8220101c&link_type=abstract

Unknown

Physics

Geophysics

Collisions, Comets, Earth (Planet), Geophysics, Solar System, Spiral Galaxies, Asteroid Capture, Earth Core, Earth Mantle, Earth Rotation, Geomagnetism, Ice Formation, Interstellar Magnetic Fields, Meteoritic Damage, Molecular Clouds

Scientific paper

A hypothesis of terrestrial catastrophism in which comets grow in molecular clouds and are captured by the Sun as it passes through the spiral arms of the galaxy is reviewed. Assuming that comets are a major supplier of the Earth crossing (Apollo) asteroid population, the latter fluctuates correspondingly and leads to episodes of magnetic field reversal and tectonic activity, while surface phenomena lead to ice ages and mass extinctions. An episodic geophysical history with an interstellar connection is thus implied. If comets in spiral arms are necessary intermediaries in the process of star formation, the theory also sheds light on early solar system history and galactic chemistry.

Affiliated with

Also associated with

No associations

Rating

Spiral arms, comets and terrestrial catastrophism does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spiral arms, comets and terrestrial catastrophism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spiral arms, comets and terrestrial catastrophism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-745285