texascavers Digest 16 Jan 2013 15:12:12 -0000 Issue 1694
Topics (messages 21230 through 21234):
TCMA Treasurer
21230 by: Sheryl Rieck
Re: TCMA Treasurer - FOUND
21231 by: Sheryl Rieck
trip report: O-9 Well on 2013-01-12
21232 by: David Ochel
21234 by: Steve Keselik
Cave Survey � Using Tape / Disto and Instruments
21233 by: David Ochel
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Please contact me off list. I have some questions for you regarding
contributions.
Thanks,
Sheryl Rieck
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--- Begin Message ---
Thank you to everyone. I have been given the name and email address of
Michael.
Sheryl
---------- Forwarded message ----------
From: Sheryl Rieck <sheryl.ri...@gmail.com>
List-Post: texascavers@texascavers.com
Date: Tue, Jan 15, 2013 at 3:59 PM
Subject: TCMA Treasurer
To: TexasCavers <texascavers@texascavers.com>
Please contact me off list. I have some questions for you regarding
contributions.
Thanks,
Sheryl Rieck
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--- Begin Message ---
Howdy y'all,
We had a successful continuation of our re-survey of O-9 Well last
weekend. All previously ('98-'10 or so) surveyed passage has now been
re-surveyed, the data is being scanned and backed up as we speak, and
the tasks that remain are: a) surveying the previously not surveyed (but
explored) parts of a continuing lead, and b) drafting the upstream part
of the map.
Getting to the cave in the dark yielded a surprise: the last part of the
road is now free of any obstacles that would prevent 2-wheel drive
low-clearance cars from making it to the cave entrance. Apparently a
result of the vibroseis studies that were performed there last year. The
grazing lessee is down to 21 cattle, he sold the rest a while ago since
it's too expensive to feed them in the ongoing drought.
Anyway, Saturday morning saw the slow organization of three survey
teams, and with the last person being finally in the cave shortly after
noon, the following feats were accomplished:
Saj Zappitello, Ben Hutchins, and Tom Rogers accepted the task to survey
a side lead taking off from the main upstream passage for over 110
meters, before running into technical difficulties with gear that was
inadequate for being stuck in a tiny passage frequently described on the
sketch as "small muddy water" for a prolonged time. The passage
continues. They then proceeded to dig at a high lead in the main
upstream passage, which sadly remains too tight to let humans go anywhere.
Andrea Croskrey, with Jill Orr and Matt Zappitello, surveyed the main
upstream passage from where a previous survey trip had ended, toward the
upstream sump, for 188.4 meters in (typically) knee-high water with a
ceiling not high enough to stand, and mud (mixed with sand from what may
have been calcite rafts?) constantly trying to snatch everyone's boots
from their feet.
David Ochel took Geoff Hoese and Bennett Lee to the upstream sump, from
where they proceeded to survey out toward Andrea's team for 232.8 meters
in similar conditions.
Andrea's and David's team finally tied into each other's survey around 7
pm, completing the re-survey of all main passage of O-9 Well. While most
folks made their way to the entrance (exit!) after this, Bennett and
David proceeded to tour the downstream part of O-9 Well. David got to be
thankful for having practiced change-overs so much when messing around
with a drop that needed re-rigging due to a frayed rope, while Bennett
wished he had brought his rope-walker (or frogging gear?) for the longer
drops. They got out of the cave just before midnight.
A line plot of the current survey status can be found here:
http://4.bp.blogspot.com/-Wu__YDjGkPo/UPX6wvbLETI/AAAAAAAAAdg/QkbwAqBnnxs/s640/2013-01-15_O-9_survey_status.png
Cheers,
David
--
David Ochel -=> http://blog.ochel.net <=-
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What was wrong with the last re-survey we took part in back in the late
90's ? I'm pretty sure I could come up with our notes of the upstream
passage including the little side passage. Steve
On Tue, Jan 15, 2013 at 7:28 PM, David Ochel <li...@ochel.net> wrote:
> Howdy y'all,
>
> We had a successful continuation of our re-survey of O-9 Well last
> weekend. All previously ('98-'10 or so) surveyed passage has now been
> re-surveyed, the data is being scanned and backed up as we speak, and
> the tasks that remain are: a) surveying the previously not surveyed (but
> explored) parts of a continuing lead, and b) drafting the upstream part
> of the map.
>
> Getting to the cave in the dark yielded a surprise: the last part of the
> road is now free of any obstacles that would prevent 2-wheel drive
> low-clearance cars from making it to the cave entrance. Apparently a
> result of the vibroseis studies that were performed there last year. The
> grazing lessee is down to 21 cattle, he sold the rest a while ago since
> it's too expensive to feed them in the ongoing drought.
>
> Anyway, Saturday morning saw the slow organization of three survey
> teams, and with the last person being finally in the cave shortly after
> noon, the following feats were accomplished:
>
> Saj Zappitello, Ben Hutchins, and Tom Rogers accepted the task to survey
> a side lead taking off from the main upstream passage for over 110
> meters, before running into technical difficulties with gear that was
> inadequate for being stuck in a tiny passage frequently described on the
> sketch as "small muddy water" for a prolonged time. The passage
> continues. They then proceeded to dig at a high lead in the main
> upstream passage, which sadly remains too tight to let humans go anywhere.
>
> Andrea Croskrey, with Jill Orr and Matt Zappitello, surveyed the main
> upstream passage from where a previous survey trip had ended, toward the
> upstream sump, for 188.4 meters in (typically) knee-high water with a
> ceiling not high enough to stand, and mud (mixed with sand from what may
> have been calcite rafts?) constantly trying to snatch everyone's boots
> from their feet.
>
> David Ochel took Geoff Hoese and Bennett Lee to the upstream sump, from
> where they proceeded to survey out toward Andrea's team for 232.8 meters
> in similar conditions.
>
> Andrea's and David's team finally tied into each other's survey around 7
> pm, completing the re-survey of all main passage of O-9 Well. While most
> folks made their way to the entrance (exit!) after this, Bennett and
> David proceeded to tour the downstream part of O-9 Well. David got to be
> thankful for having practiced change-overs so much when messing around
> with a drop that needed re-rigging due to a frayed rope, while Bennett
> wished he had brought his rope-walker (or frogging gear?) for the longer
> drops. They got out of the cave just before midnight.
>
> A line plot of the current survey status can be found here:
>
> http://4.bp.blogspot.com/-Wu__YDjGkPo/UPX6wvbLETI/AAAAAAAAAdg/QkbwAqBnnxs/s640/2013-01-15_O-9_survey_status.png
>
> Cheers,
> David
>
> --
> David Ochel -=> http://blog.ochel.net <=-
>
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>
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--- Begin Message ---
Hola,
There's a completely revised version of our survey basics (and
not-so-basics) on the UT Grotto web site:
http://utgrotto.org/articles/SurveyBasics.asp
Cheers,
David
--
David Ochel -=> http://blog.ochel.net <=-
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