[meteorite-list] Dennis Cox -- NM and SW Montana craters on CosmicTusk.com 2010.10.31: Rich Murray 2010.11.04

From: Rich Murray <rmforall_at_meteoritecentral.com>
Date: Thu, 4 Nov 2010 22:36:57 -0600
Message-ID: <5B6DC958EB9F49D2B2236AC75AE307F2_at_ownerPC>

Dennis Cox -- NM and SW Montana craters on CosmicTusk.com 2010.10.31: Rich
Murray 2010.11.04

33.902836 -105.527268 1.889 km elevation,
7 m below NE rim at 1.896 km elevation,
1.3 km size SW to NE,
NE of Carrizozo lava field, NM


Rich Murray
October 31st, 2010 at 12:38 am CosmicTuck.com blog comment

4 large geoablative melt flow sites west of Carrizozo lava field, New
Mexico: Rich Murray 2010.10.30

33.621280 -106.204255 delicate geoablative flow patterns:
to the S is an EW dark lava strip (70 m wide NS)
with long EW flow ridges about 8-17 m apart.

In Google Earth,
use Ctrl down arrow or up to tilt the view,
and Ctrl L arrow or R to rotate,
and the four arrow keys to move horizontally,
making it easy to see the 3D shapes of the land.
Use N to restore the N view.

The area to the N and E has a road Wsmr S Rt 335 (NS) that ends S at Wsmr P
Rt 12 (EW),
which becomes CR A003 (EW), which goes E across
the thin middle of Carrizozo lava field
and then crosses US 54 (NNE).
Wspr P Rt 9 (NS) is 74 m lower to the W.

33.709143 -106.145081 classic vertical geoablation ridges

33.654083 -106.041597 1.692 km el peak
within huge geoablative melt air blast area

33.760188 -106.197151 2.061 km el peak
geoablation melt

http://craterhunter.wordpress.com/2010/10/24/a-crater-a-day/#comments


http://cosmictusk.com/bob-kobres-a-nickel-pickel-part-d#comments

2 comments to Bob Kobres' A Nickel Pickle: Part D!

Dennis Cox
November 2nd, 2010 at 9:46 am

The Red Rock River Valley in southwest Montana is a crater field of
multiple, oblique, low angle impacts coming from the southwest.
And into the sedimentary deposits of the valley floor.
The sedimentary deposits there date to the late Pleistocene, early Holocene.
The ejecta from the oval crater at 44.642265, -112.077185 was blown over the
top of, and is blanketing, one of the ancient meanders of the river.

The ejecta covering that ancient meander should provide an excellent
stratigraphic horizon for dating the event.

Considering the trajectory, Glacial Lake Missoula was down range.


Rich Murray
November 4th, 2010 at 12:08 am

44.664261 -111.940163 2.025 km elevation, a very similar field

44.632155 -112.046756 2.019 km elevation

44.629973 -111.998401 2.018 km elevation


http://www.scribd.com/doc/35295841/Southwest-Montana

same crater fields


http://www.scribd.com/doc/35009250/Mountain-Flows

29.709410 -105.687881 in north central Mexico
Received on Fri 05 Nov 2010 12:36:57 AM PDT