(meteorobs) Earth Meteorites

[drobnock]

There was a project proposed a few years ago by Andrew Sicree and David
Gold, Penn State University to collect Fossil Meteors. The concept was
to have the coal industry check the magnets on conveyor belts at the end
of each days run for unusual iron deposits. The magnets are installed to
pick up metal from the mining operation such as drills, hammers, gears.
Also meteorites that may be within the coal seam (fossil meteors). This
would have been  from a meteor fall during the Carboniferous Period that
lasted from about 359.2 to 299 million years ago.

As the Yucatan Fall was during the Cretaceous Period  66 million years,
age of dinosaurs, the question is have there been meteorites found near
dinosaur digs sites? Especially, meteorites of rock originating in now
Central America and found in Wyoming.

Then there is the Eocene, 56 to 33.9 million years ago,  impact in the
Chesapeake Bay. There has been speculation that the pyrite deposits
found in Pennsylvania may be attributed to this impact.

Of course, some of the earth bound meteorites found in fields by farming
or highway construction may be earth meteorites, just that the chemistry
was altered by the original impact some where on earth.

Then too, when we are on Mars again walking in a rille, and stumble upon
an unusual rock, it may be a piece of home. Earth that is.

George John Drobnock