While temperature, moisture content, and seasonality probably do have
some effects on raft deposition in the stream passage, and certainly
effect CO2 generation in the soil horizon, my observations in CWAN are
that these effects on the surface are actually driving airflow changes
in the cave,
Almost right. The CO2 levels and airflow velocities are essentially
barometrically driven (not chimney effect which requires substantial elevation
differences). In the summer barometric pressure changes are usually small so
little air exchange occurs (and CO2 levels can build). In the winter,
-Original Message-
From: Benjamin Schwartz [mailto:b...@txstate.edu]
Sent: Tuesday, February 14, 2012 07:51
To: texascavers@texascavers.com
Subject: [Texascavers] Re: Honey Creek sand observation
While temperature, moisture content, and seasonality probably do have some
effects on raft
As for the origin of the CO2, I think that is still an open question. I'm
not so sure about soils since there isn't much in central Texas. In small
caves it could be organics. But in larger caves, I tend to favor out gassing
from the limestone as it is dissolved by water - especially in caves that
I have a fresh Austin chalk cave rock ready to go in a vacuum chamber connected
to a mass spec to measure the outgassing, which may give us some data soon.
Joe
Sent from my iPhone
On Feb 14, 2012, at 10:25 AM, George Veni gv...@nckri.org wrote:
As for the origin of the CO2, I think that is
I have been following the calcite sand posts with interest. George, I
suspect the soils may be more important than you acknowledge. I think it
depends more on residence time and partial pressure (and, of course, plant
activity) than thickness of the soils as such.
In a related
USA
Office: 575-887-5517
Mobile: 210-863-5919
Fax: 575-887-5523
gv...@nckri.org
www.nckri.org
From: dirt...@comcast.net [mailto:dirt...@comcast.net]
Sent: Tuesday, February 14, 2012 17:07
To: texascavers@texascavers.com
Subject: Re: [Texascavers] Re: Honey Creek sand observation
I have
Woops! Sorry. So much for a quick read. My comment still stands, however.
Dwight
- Original Message -
From: George Veni gv...@nckri.org
To: texascavers@texascavers.com
Sent: Tuesday, February 14, 2012 5:36:10 PM
Subject: RE: [Texascavers] Re: Honey Creek sand observation
While temperature, moisture content, and seasonality probably do have
some effects on raft deposition in the stream passage, and certainly
effect CO2 generation in the soil horizon, my observations in CWAN are
that these effects on the surface are actually driving airflow changes
in the cave,
Almost right. The CO2 levels and airflow velocities are essentially
barometrically driven (not chimney effect which requires substantial elevation
differences). In the summer barometric pressure changes are usually small so
little air exchange occurs (and CO2 levels can build). In the winter,
-Original Message-
From: Benjamin Schwartz [mailto:b...@txstate.edu]
Sent: Tuesday, February 14, 2012 07:51
To: texascavers@texascavers.com
Subject: [Texascavers] Re: Honey Creek sand observation
While temperature, moisture content, and seasonality probably do have some
effects on raft
I have a fresh Austin chalk cave rock ready to go in a vacuum chamber connected
to a mass spec to measure the outgassing, which may give us some data soon.
Joe
Sent from my iPhone
On Feb 14, 2012, at 10:25 AM, George Veni gv...@nckri.org wrote:
As for the origin of the CO2, I think that is
I have been following the calcite sand posts with interest. George, I
suspect the soils may be more important than you acknowledge. I think it
depends more on residence time and partial pressure (and, of course, plant
activity) than thickness of the soils as such.
In a related
USA
Office: 575-887-5517
Mobile: 210-863-5919
Fax: 575-887-5523
gv...@nckri.org
www.nckri.org
From: dirt...@comcast.net [mailto:dirt...@comcast.net]
Sent: Tuesday, February 14, 2012 17:07
To: texascavers@texascavers.com
Subject: Re: [Texascavers] Re: Honey Creek sand observation
I have
Woops! Sorry. So much for a quick read. My comment still stands, however.
Dwight
- Original Message -
From: George Veni gv...@nckri.org
To: texascavers@texascavers.com
Sent: Tuesday, February 14, 2012 5:36:10 PM
Subject: RE: [Texascavers] Re: Honey Creek sand observation
While temperature, moisture content, and seasonality probably do have
some effects on raft deposition in the stream passage, and certainly
effect CO2 generation in the soil horizon, my observations in CWAN are
that these effects on the surface are actually driving airflow changes
in the cave,
Almost right. The CO2 levels and airflow velocities are essentially
barometrically driven (not chimney effect which requires substantial elevation
differences). In the summer barometric pressure changes are usually small so
little air exchange occurs (and CO2 levels can build). In the winter,
As for the origin of the CO2, I think that is still an open question. I'm
not so sure about soils since there isn't much in central Texas. In small
caves it could be organics. But in larger caves, I tend to favor out gassing
from the limestone as it is dissolved by water - especially in caves that
I have a fresh Austin chalk cave rock ready to go in a vacuum chamber connected
to a mass spec to measure the outgassing, which may give us some data soon.
Joe
Sent from my iPhone
On Feb 14, 2012, at 10:25 AM, George Veni gv...@nckri.org wrote:
As for the origin of the CO2, I think that is
I have been following the calcite sand posts with interest. George, I
suspect the soils may be more important than you acknowledge. I think it
depends more on residence time and partial pressure (and, of course, plant
activity) than thickness of the soils as such.
In a related
USA
Office: 575-887-5517
Mobile: 210-863-5919
Fax: 575-887-5523
gv...@nckri.org
www.nckri.org
From: dirt...@comcast.net [mailto:dirt...@comcast.net]
Sent: Tuesday, February 14, 2012 17:07
To: texascavers@texascavers.com
Subject: Re: [Texascavers] Re: Honey Creek sand observation
I have
Woops! Sorry. So much for a quick read. My comment still stands, however.
Dwight
- Original Message -
From: George Veni gv...@nckri.org
To: texascavers@texascavers.com
Sent: Tuesday, February 14, 2012 5:36:10 PM
Subject: RE: [Texascavers] Re: Honey Creek sand observation
Wow! That's almost the same number of people we had at the
Honey Creek 20-year anniversary in 2000! (84 was the official count
then, but they didn't all go caving. See Texas Caver 45(5) p.
125-126, Sept./Oct. 2000.) Good show!
Mark Minton
At 04:21 PM 2/1/2011, Kurt L. Menking
Bill,
The results were that James and Creature surveyed 1,000 feet of passage and
reached another sump.
Congratulations on some hard-won passage! Too bad about the next sump.
:-( I guess passing that one is beyond the limits of reasonable effort with
current technology.
Mark
: [Texascavers] RE: Honey Creek Cave tank haul trip
To: speleoste...@tx.rr.com, Texascavers@texascavers.com
List-Post: texascavers@texascavers.com
Date: Monday, June 8, 2009, 9:09 AM
Bill,
The results were that James and Creature surveyed 1,000 feet of passage and
reached another sump
Thomas Stich said:
You could return with a cave radio, get a proper reading, and then drill a new
well into the current passage beyond the sump, correct? What's the cost of
drilling the well? Is that on the order of thousands or tens of thousands of
dollars?
Then the challenge would
I'm reminded of the wisdom of the immortal Cave Carson quoted in Inside
Earth #1:
A SUMP IS GOD'S WAY OF TELLING YOU THE CAVE ENDS THERE
On 6/8/09 6:26 AM, speleoste...@tx.rr.com speleoste...@tx.rr.com wrote:
Well, we did it. And it may well have been the Last Honey Creek Cave tank
haul. Or,
Mark Minton wrote:
Bill Steele once brought a triathlete to Honey Creek on a pretty hard trip.
The poor guy had never been caving before, and he never knew what hit him.
We would play with him, getting ahead and then waiting. When he showed up
huffing and puffing Bill would say, Well,
Gregg said:
Airmen's is right here in Austin. It supposedly has going leads. But no one seems willing to go back that far to survey. So maybe it is harder than
diving Honey Creek.
I've worked on the leads at the back of Airmen's and also on some at points along
the way. As far as
, December 05, 2007 10:56 AM
To: texascavers@texascavers.com
Subject: [Texascavers] RE: Honey Creek/Airmen's
Gregg said:
Airmen's is right here in Austin. It supposedly has going leads. But no
one seems willing to go back that far to survey. So maybe it is harder than
diving Honey Creek
=:-)
-Original Message-
From: Minton, Mark mmin...@nmhu.edu
To: texascavers@texascavers.com texascavers@texascavers.com
Sent: Wed, 5 Dec 2007 10:56 am
Subject: [Texascavers] RE: Honey Creek/Airmen's
?? Gregg said:
?
Airmen's is right here in Austin.? It supposedly has going leads
31 matches
Mail list logo
