[meteorite-list] fractal clusters of shallow rimless craters on lava plateaus -- result of ice comet fragment air and surface bursts? very common in Great Basin from Oregon to California: Rich Murray 2011.07.10

From: Rich Murray <rmforall_at_meteoritecentral.com>
Date: Sun, 10 Jul 2011 23:26:21 -0700
Message-ID: <CAHqJ8pZP3Ce38x8JNVsGhEEYuV9Ly5_WP5xLOHJLAvrYHn=6YA_at_mail.gmail.com>

fractal clusters of shallow rimless craters on lava plateaus -- result
of ice comet fragment air and surface bursts? very common in Great
Basin from Oregon to California: Rich Murray 2011.07.10

I readily found much more in 3 hours with Google Earth and Maps --
here are just two clusters -- may be evidence for fractal clusters of
air and surface
bursts of many ice comet fragments from typical gradual disruption of
a parent comet in solar orbit.

41.661806 -119.086891 2.014 km el,
a shallow rimless crater, .6X.4 km,
16 m lower than 2.030 km plateau to S --
seems to be a lava surface,
with a number of similar craters.

fractal field of impacts on lava plateau,
one crater, about .6 km wide NW-SE
43.363764 -120.186009 1.443 km el low,
23 m lower than 1.666 km edge to NE,
white and dark minerals on bottom,
N and E inner rim is darker.

The region is very interesting...
Received on Mon 11 Jul 2011 02:26:21 AM PDT