News of trip into the world's deepest cave, posted in Spanish to the
Tlamaqui e-mail list by Franco Attolini Smithers (a really
international combination of names). What follows is Google
translation into English (sort of). Machine translation has a long way
to go. For those who can read
There is an article about a recently documented shelter cave
in South Africa called Klipdrift in the online publication Technology
More by Trimble
http://www.trimble.com/technologyandmore/i2-2011/. See p.
4-5. The article is from a surveyor's perspective, but may still be
Hmm. That new Leica 3D thingie (http://www.leica-geosystems.com/en/Leica-3D-Disto_94606.htm
) looks like, with the right software, it might be a relatively
inexpensive LIDAR unit--but still $8000. -- Mixon
The only thing worse than being talked about is
Could this entrance have been triggered by a meteor falling over a lava
tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum detail:
http://hirise.lpl.arizona.edu/images/2011/details/cut/ESP_023531_1840.jpg
Lee Skinner
Not likely a meteor-- it's too conical, and has no sign of a rim or nearby
ejecta. Always hard to judge scale and angles in these kinds of images...
anyway, my guess is that the underlying lava tube had a partial collapse on
its own, causing the sand/regolith to funnel in.
-Tenzin
On Thu, Aug 18,
texascavers Digest 18 Aug 2011 17:23:41 - Issue 1369
Topics (messages 18356 through 18360):
Re: Explore the outdoors with Trail Maps by National Geographic
18356 by: germanyj.aol.com
UT Grotto meeting Wednesday August 17, 2011
18357 by: Gary Franklin
OFF TOPIC
How much of the missing material has disappeared via the pit into the
underground cavern? I'd say all of it. Symmetry remarkable. Would be
nice to know how steep that slope is. -- Mixon
The only thing worse than being talked about is not being talked
News of trip into the world's deepest cave, posted in Spanish to the
Tlamaqui e-mail list by Franco Attolini Smithers (a really
international combination of names). What follows is Google
translation into English (sort of). Machine translation has a long way
to go. For those who can read
There is an article about a recently documented shelter cave
in South Africa called Klipdrift in the online publication Technology
More by Trimble
http://www.trimble.com/technologyandmore/i2-2011/. See p.
4-5. The article is from a surveyor's perspective, but may still be
Hmm. That new Leica 3D thingie (http://www.leica-geosystems.com/en/Leica-3D-Disto_94606.htm
) looks like, with the right software, it might be a relatively
inexpensive LIDAR unit--but still $8000. -- Mixon
The only thing worse than being talked about is
Could this entrance have been triggered by a meteor falling over a lava
tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum detail:
http://hirise.lpl.arizona.edu/images/2011/details/cut/ESP_023531_1840.jpg
Lee Skinner
Could this entrance have been triggered by a meteor falling over a lava
tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum detail:
http://hirise.lpl.arizona.edu/images/2011/details/cut/ESP_023531_1840.jpg
Lee Skinner
Maybe, but the
Hi Lee,
Yes, the event you suggest is what we also suspect. This image is relatively
new, but we have also been trading around a couple of other instances of an
apparently similar crater breaching of subsurface cavity. A colleague in
London recently sent me another entry into the Martian
Not likely a meteor-- it's too conical, and has no sign of a rim or nearby
ejecta. Always hard to judge scale and angles in these kinds of images...
anyway, my guess is that the underlying lava tube had a partial collapse on
its own, causing the sand/regolith to funnel in.
-Tenzin
On Thu, Aug 18,
On 8/18/2011 11:38 AM, Tenzin Beck wrote:
Not likely a meteor-- it's too conical, and has no sign of a rim or
nearby ejecta. Always hard to judge scale and angles in these kinds of
images... anyway, my guess is that the underlying lava tube had a
partial collapse on its own, causing the
That is cool!! Sign me up for the survey trip
Peter
On Aug 18, 2011, at 1:23 PM, Lee H. Skinner wrote:
Could this entrance have been triggered by a meteor falling over a lava tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum
On 8/18/2011 11:29 AM, Peter Jones wrote:
That is cool!! Sign me up for the survey trip
But be careful, Peter. It could also be the home of the endangered
Giant Martian Ant-Lion. When you repel in, take some bear spray.!
Lee Skinner
texascavers Digest 18 Aug 2011 17:23:41 - Issue 1369
Topics (messages 18356 through 18360):
Re: Explore the outdoors with Trail Maps by National Geographic
18356 by: germanyj.aol.com
UT Grotto meeting Wednesday August 17, 2011
18357 by: Gary Franklin
OFF TOPIC
News of trip into the world's deepest cave, posted in Spanish to the
Tlamaqui e-mail list by Franco Attolini Smithers (a really
international combination of names). What follows is Google
translation into English (sort of). Machine translation has a long way
to go. For those who can read
There is an article about a recently documented shelter cave
in South Africa called Klipdrift in the online publication Technology
More by Trimble
http://www.trimble.com/technologyandmore/i2-2011/. See p.
4-5. The article is from a surveyor's perspective, but may still be
Hmm. That new Leica 3D thingie (http://www.leica-geosystems.com/en/Leica-3D-Disto_94606.htm
) looks like, with the right software, it might be a relatively
inexpensive LIDAR unit--but still $8000. -- Mixon
The only thing worse than being talked about is
Could this entrance have been triggered by a meteor falling over a lava
tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum detail:
http://hirise.lpl.arizona.edu/images/2011/details/cut/ESP_023531_1840.jpg
Lee Skinner
Could this entrance have been triggered by a meteor falling over a lava
tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum detail:
http://hirise.lpl.arizona.edu/images/2011/details/cut/ESP_023531_1840.jpg
Lee Skinner
Maybe, but the
Hi Lee,
Yes, the event you suggest is what we also suspect. This image is relatively
new, but we have also been trading around a couple of other instances of an
apparently similar crater breaching of subsurface cavity. A colleague in
London recently sent me another entry into the Martian
Not likely a meteor-- it's too conical, and has no sign of a rim or nearby
ejecta. Always hard to judge scale and angles in these kinds of images...
anyway, my guess is that the underlying lava tube had a partial collapse on
its own, causing the sand/regolith to funnel in.
-Tenzin
On Thu, Aug 18,
On 8/18/2011 11:38 AM, Tenzin Beck wrote:
Not likely a meteor-- it's too conical, and has no sign of a rim or
nearby ejecta. Always hard to judge scale and angles in these kinds of
images... anyway, my guess is that the underlying lava tube had a
partial collapse on its own, causing the
That is cool!! Sign me up for the survey trip
Peter
On Aug 18, 2011, at 1:23 PM, Lee H. Skinner wrote:
Could this entrance have been triggered by a meteor falling over a lava tube?
http://hirise.lpl.arizona.edu/ESP_023531_1840
and click on this one in your browser for maximum
On 8/18/2011 11:29 AM, Peter Jones wrote:
That is cool!! Sign me up for the survey trip
But be careful, Peter. It could also be the home of the endangered
Giant Martian Ant-Lion. When you repel in, take some bear spray.!
Lee Skinner
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