[meteorite-list] opinions on suspect crater / odd formation

From: Rich Murray <rmforall_at_meteoritecentral.com>
Date: Sat, 9 Jul 2011 20:29:37 -0700
Message-ID: <CAHqJ8pbPE71N2N=TO==pudyYQ=1oomzf3krzX2xA_qGhtsem3A_at_mail.gmail.com>

Dark Lake, Mount Hood National Forest, Estacada, OR,
44.796343 -121.760206 1.433 km el, about 0.7 km wide,
1.533 km high edge to SSW, 100 m higher --
may be many impact features of various sizes --
13 km S of Sisi Butte --

Sisi Butte
44.899219 -121.844491 1.711 km top el,
1.287 km low at EES, 424 m lower --

directly S is a 1.5 km size round area with a fractal collection of
small craters, which show up very clearly on Google Maps Terrain --
perhaps this is good evidence of the impact of a cluster of objects
onto the older complex surface, which seems to have a uniform
composition without layers -- if this is so, then the question can be
raised as to whether much larger objects made Dark Lake and Sisi Butte
and more.

This fits the paradigm outlined in recent years by Dennis Cox:
http://craterhunter.wordpress.com/


Impact melt formation by low-altitude airburst processes, evidence
from small terrestrial craters and numerical modeling, H E Newsom &
MBE Boslough 2008 Mar 2p abstract: Rich Murray 2010.11.17
http://rmforall.blogspot.com/2010_11_01_archive.htm
Wednesday, November 17, 2010
[ at end of each long page, click on Older Posts ]
http://groups.yahoo.com/group/astrodeep/message/73
[ you may have to Copy and Paste URLs into your browser ]

3 times more downward energy from directed force of meteor airburst in
3D simulations by Mark B. E. Boslough, Sandia Lab 2007.12.17: Rich
Murray 2010.08.30
http://rmforall.blogspot.com/2010_08_01_archive.htm
Monday, August 30, 2010
[ at end of each long page, click on Older Posts ]
http://groups.yahoo.com/group/astrodeep/message/63
[ you may have to Copy and Paste URLs into your browser ]
Received on Sat 09 Jul 2011 11:29:37 PM PDT