Re: [meteorite-list] The ASU - WMAT Meteorite Expedition and Recovery

[Ruben Garcia via Meteorite-list]

Thanks,

No official word on classification but it's probably an L6, maybe LL6.


On Wed, Jun 29, 2016 at 5:39 PM, Galactic Stone & Ironworks
 wrote:
> Congrats Ruben and everyone else on the team. Given the difficult
> terrain, this is an outstanding find. And kudos to the Apache Nation
> for allowing the team to come in and hunt their land.
>
> Any preliminary word on what the type might be?
>
> Best regards and happy huntings,
>
> MikeG
>
>
> On 6/29/16, Ruben Garcia via Meteorite-list
>  wrote:
>> Hi all,
>>
>> I have a few of the most recent articles regarding our hunt here.
>>
>> http://www.mrmeteorite.com
>>
>>
>>
>>
>>
>> --
>> Rock On!
>>
>> Ruben Garcia
>> http://www.MrMeteorite.com
>> __
>>
>> Visit our Facebook page https://www.facebook.com/meteoritecentral and the
>> Archives at http://www.meteorite-list-archives.com
>> Meteorite-list mailing list
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>> https://pairlist3.pair.net/mailman/listinfo/meteorite-list
>>
>
>
> --
> 
> www.galactic-stone.com
> www.facebook.com/galacticstone
> www.twitter.com/galacticstone
> www.pinterest.com/galacticstone
> www.instagram.com/galacticstone
> www.ello.co/galacticstone
> www.tsu.com/galacticstone
> 



-- 
Rock On!

Ruben Garcia
http://www.MrMeteorite.com
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Re: [meteorite-list] The ASU - WMAT Meteorite Expedition and Recovery

[Galactic Stone & Ironworks via Meteorite-list]

Congrats Ruben and everyone else on the team. Given the difficult
terrain, this is an outstanding find. And kudos to the Apache Nation
for allowing the team to come in and hunt their land.

Any preliminary word on what the type might be?

Best regards and happy huntings,

MikeG


On 6/29/16, Ruben Garcia via Meteorite-list
 wrote:
> Hi all,
>
> I have a few of the most recent articles regarding our hunt here.
>
> http://www.mrmeteorite.com
>
>
>
>
>
> --
> Rock On!
>
> Ruben Garcia
> http://www.MrMeteorite.com
> __
>
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the
> Archives at http://www.meteorite-list-archives.com
> Meteorite-list mailing list
> Meteorite-list@meteoritecentral.com
> https://pairlist3.pair.net/mailman/listinfo/meteorite-list
>


-- 

www.galactic-stone.com
www.facebook.com/galacticstone
www.twitter.com/galacticstone
www.pinterest.com/galacticstone
www.instagram.com/galacticstone
www.ello.co/galacticstone
www.tsu.com/galacticstone

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[meteorite-list] The ASU - WMAT Meteorite Expedition and Recovery

[Ruben Garcia via Meteorite-list]

Hi all,

I have a few of the most recent articles regarding our hunt here.

http://www.mrmeteorite.com





-- 
Rock On!

Ruben Garcia
http://www.MrMeteorite.com
__

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Re: [meteorite-list] Meteorites Recovered in Arizona from June 2 Fireball

[J Sinclair via Meteorite-list]

This is a great story of a collaboration between the Apache Nation,
ASU meteorite scientists and professional meteorite hunters. It shows
the scientific community, the land owners and the collecting community
working together at their best.

Thanks to all involved for sharing this.

John

On Wed, Jun 29, 2016 at 1:05 PM, Ron Baalke via Meteorite-list
 wrote:
>
>
> https://asunow.asu.edu/20160628-discoveries-tracking-down-arizona-fireball
>
> After 132 hours of searching, ASU team - in partnership with White Mountain
> Apaches - locates meteorites on tribal land
>
> Arizona State University
> June 28, 2016
>
> On June 2, a chunk of rock the size of a Volkswagen Beetle hurtled into
> the atmosphere over the desert Southwest at 40,000 miles per hour and
> broke apart over the White Mountains of eastern Arizona.
>
> A week later, one of Arizona State University's top meteorite experts
> was off on a team expedition in the Arizona wilderness on an Apache homeland,
> braving bug bites, bears and mountainous terrain.
>
> After three nights and 132 hours of searching, they were successful.
>
> "This is a really big deal," said Laurence Garvie, research professor
> and curator of the Center for Meteorite Studies in the School of Earth
> and Space Exploration at ASU. "It was a once-in-a-generation experience."
>
> It began when Garvie woke up on June 2, checked social media and saw that
> dozens of people and cameras witnessed a dramatic meteor fall in the wee
> hours of the morning. He immediately knew it was going to be a long day.
>
> National Weather Service Doppler radar in Flagstaff swept the area and
> turned up three strong radar returns on White Mountain Apache tribal land.
>
> "This thing exploded in the atmosphere," Garvie said. "When the
> stone breaks up, things just start dropping. ... By simple physics we
> can estimate where these things are on the ground."
>
> A lot of meteorite hunters immediately knew where it had fallen, but tribal
> lands are closed to the public, unless hiking or fishing with a permit.
> "People were excited, but it wasn't on public land," Garvie said.
>
> A day or so after the fall, after Garvie had stopped being bombarded for
> interview requests from the press, he and Jacob Moore, assistant vice
> president of tribal relations at ASU, contacted the tribal council of
> the White Mountain Apache Tribe.
>
> "(Moore) was absolutely pivotal to this," Garvie said.
>
> With tribal permission granted, the Arizona State University - White Mountain
> Apache Tribe Meteorite Expedition, as Garvie dubbed it, took off for the
> mountains. Tribal chief ranger Chadwick Amos and Game and Fish director
> Josh Parker met the team nearby to help them with their search.
>
> Garvie, two grad students from the Center for Meteorite Studies and three
> professional meteorite hunters invited by the center took off in three
> high-clearance four-wheel-drive trucks. They brought food and water for
> a week in case they got stuck.
>
> Like most backcountry roads in Arizona, it was a hairy two-track.
>
> "We drove 5 miles an hour," Garvie said. They blew a tire (their last
> spare) at one point. "We drove a mile an hour after that," he added.
> "We took 1.5 hours to travel the 7-mile dirt road to our first campsite."
>
> Everyone was bitten by either cactus or insects. Bears wandered through
> camp one night. On the way out, they rescued two lost hikers. Because
> the mountains are tinder dry, they couldn't have campfires, so they
> ate canned chili, nuts and jerky. One guy put Reddi-Wip on everything.
> "It was a real adventure," Garvie said.
>
> The terrain is beautiful, but rugged. You might want to hike to a point
> 1,000 yards away, but it involves traversing twice that to get there.
>
> After three nights camping and 132 hours of searching, the team found
> 15 meteorites, ranging in size from a medium-sized strawberry to a pea.
> "These are pristine things that were in space a few days ago," Garvie
> said.
>
> Searching consisted of walking slowly and scanning small patches of bare
> ground where it would be possible to see a small, black, rounded rock,
> according to Garvie.
>
> Graduate students from the Center for Meteorite Studies, Prajkta Mane
> and Daniel Dunlap, both found meteorites.
>
> Dunlap found one the size of a pea in a clump of grass. "Oh man, I can't
> believe this is happening," Dunlap said he thought when he saw it. "Oh
> my God, is that one? It is!"
>
> "It was an amazing feeling," he said later.
>
> Mane also found her first meteorite.
>
> "It was crazy," she said. "You study these things in the lab, but
> to go into the field with experienced people and find one was really amazing."
>
> It was the third recovered meteorite fall this year in the United States.
> The other two were in Mount Blanco, Texas, and Osceola, Florida. All three
> finds were enhanced by Doppler radar. Without the Doppler data, the White
> Mountain finds would likely 

[meteorite-list] Meteorites Recovered in Arizona from June 2 Fireball

[Ron Baalke via Meteorite-list]

https://asunow.asu.edu/20160628-discoveries-tracking-down-arizona-fireball

After 132 hours of searching, ASU team - in partnership with White Mountain 
Apaches - locates meteorites on tribal land

Arizona State University
June 28, 2016

On June 2, a chunk of rock the size of a Volkswagen Beetle hurtled into 
the atmosphere over the desert Southwest at 40,000 miles per hour and 
broke apart over the White Mountains of eastern Arizona.

A week later, one of Arizona State University's top meteorite experts 
was off on a team expedition in the Arizona wilderness on an Apache homeland, 
braving bug bites, bears and mountainous terrain.

After three nights and 132 hours of searching, they were successful.

"This is a really big deal," said Laurence Garvie, research professor 
and curator of the Center for Meteorite Studies in the School of Earth 
and Space Exploration at ASU. "It was a once-in-a-generation experience."

It began when Garvie woke up on June 2, checked social media and saw that 
dozens of people and cameras witnessed a dramatic meteor fall in the wee 
hours of the morning. He immediately knew it was going to be a long day.

National Weather Service Doppler radar in Flagstaff swept the area and 
turned up three strong radar returns on White Mountain Apache tribal land.

"This thing exploded in the atmosphere," Garvie said. "When the 
stone breaks up, things just start dropping. ... By simple physics we 
can estimate where these things are on the ground."

A lot of meteorite hunters immediately knew where it had fallen, but tribal 
lands are closed to the public, unless hiking or fishing with a permit. 
"People were excited, but it wasn't on public land," Garvie said.

A day or so after the fall, after Garvie had stopped being bombarded for 
interview requests from the press, he and Jacob Moore, assistant vice 
president of tribal relations at ASU, contacted the tribal council of 
the White Mountain Apache Tribe.

"(Moore) was absolutely pivotal to this," Garvie said.

With tribal permission granted, the Arizona State University - White Mountain 
Apache Tribe Meteorite Expedition, as Garvie dubbed it, took off for the 
mountains. Tribal chief ranger Chadwick Amos and Game and Fish director 
Josh Parker met the team nearby to help them with their search.

Garvie, two grad students from the Center for Meteorite Studies and three 
professional meteorite hunters invited by the center took off in three 
high-clearance four-wheel-drive trucks. They brought food and water for 
a week in case they got stuck.

Like most backcountry roads in Arizona, it was a hairy two-track.

"We drove 5 miles an hour," Garvie said. They blew a tire (their last 
spare) at one point. "We drove a mile an hour after that," he added. 
"We took 1.5 hours to travel the 7-mile dirt road to our first campsite."

Everyone was bitten by either cactus or insects. Bears wandered through 
camp one night. On the way out, they rescued two lost hikers. Because 
the mountains are tinder dry, they couldn't have campfires, so they 
ate canned chili, nuts and jerky. One guy put Reddi-Wip on everything. 
"It was a real adventure," Garvie said.

The terrain is beautiful, but rugged. You might want to hike to a point 
1,000 yards away, but it involves traversing twice that to get there.

After three nights camping and 132 hours of searching, the team found 
15 meteorites, ranging in size from a medium-sized strawberry to a pea. 
"These are pristine things that were in space a few days ago," Garvie 
said.

Searching consisted of walking slowly and scanning small patches of bare 
ground where it would be possible to see a small, black, rounded rock, 
according to Garvie.

Graduate students from the Center for Meteorite Studies, Prajkta Mane 
and Daniel Dunlap, both found meteorites.

Dunlap found one the size of a pea in a clump of grass. "Oh man, I can't 
believe this is happening," Dunlap said he thought when he saw it. "Oh 
my God, is that one? It is!"

"It was an amazing feeling," he said later.

Mane also found her first meteorite.

"It was crazy," she said. "You study these things in the lab, but 
to go into the field with experienced people and find one was really amazing."

It was the third recovered meteorite fall this year in the United States. 
The other two were in Mount Blanco, Texas, and Osceola, Florida. All three 
finds were enhanced by Doppler radar. Without the Doppler data, the White 
Mountain finds would likely not have been recovered, Garvie said.

The three citizen scientists - Robert Ward, Ruben Garcia and Mike Miller, 
all well-known to the center - discovered meteorites and handed them 
off to the collection. It was a condition of their joining the expedition, 
and they gladly accepted, attracted by the thrill of the hunt.

"I really want to stress how important they were," Garvie said.


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Re: [meteorite-list] Hot vs Cold again...wasmMeteorite Crashes Through Thailand House Roof

[lmlangenfeld--- via Meteorite-list]

Some reports indicate that the deeply cold-soaked main mass of the 104 kg 
Colby, WI, L6 -- which was recovered quickly after its witnessed fall on a warm 
and very humid July 4 in 1917 -- actually acquired a coating of frost within 
minutes of being excavated. 

Mark 

- Original Message -

From: "Graham Ensor via Meteorite-list"  
To: "MEM"  
Cc: Meteorite-list@meteoritecentral.com 
Sent: Wednesday, June 29, 2016 2:29:43 AM 
Subject: Re: [meteorite-list] Hot vs Cold again...wasmMeteorite Crashes Through 
Thailand House Roof 

Elton...I agree with most of thatbut the cooling starts straight after hot 
flight miles up where the air temperature is around -30 -50 deg...surely any 
heat in the fusion crust would dissipate very quickly up there and then the 
interior temperature would then equalize to bring it down to well below 
freezing as it free-falls with minimum friction to change thatso my 
thinking is that even the fusion crust would also be very cold on landing 
unless somehow the friction from punching the hole heats the surface 
briefly...but I doubt that it would last more than a fraction of a second. 

Graham 

On Wed, Jun 29, 2016 at 2:04 AM, MEM via Meteorite-list < 
meteorite-list@meteoritecentral.com > wrote: 




This was looked into several times in the list history. I am recalling details 
from those discussions/my research. 

Any body arriving from space is at least -60°c and closer to -120°c to -180°c 
based on some black body studies of asteroids-- IIRC 


The temperature at the air-meteoroid boundary of entry exceeds the melting 
point of both iron and olivine. Most of that heat is carried off as an 
iron/silicate mist. Each mili-second of incandescent flight an entirely new 
surface is formed. Inward traveling heat is being stripped away almost as fast 
as it is penetrating in low thermo-conducivity but much faster in high 
conductivity bodies (e.g iron). The radiative cooling during dark flight is 
probably calculable and a missing factor in estimating the state of heat 
content upon landing. 


One of the Weston CT meteorites formed a frost rind shortly after falling after 
sufficient time for all reentry heat to dissipate. I do not recall any other 
comments. This was discovered by a fireman under the dining table. I do not 
recall which other meteorite it was but, another was noted to have a frost rind 
after a few minutes. Other falls such as Sylacaga are silent as to the 
temperature. 


Conclusions: 

An immediately-recovered, newly-fallen silicate/stony meteorite is usually--but 
briefly "hot/uncomfortably warm" to the touch. The rind is very hot but lacks 
much heat reservoir. Heat penetration--based on measuring heated rims-- is 
somewhere between 2mm but not more than 6mm. Beyond 6mm does not get above 140° 
F proven by the domain reset of magnetite orientation in Martian Meteorites. Be 
it remembered that an empty .50 cal brass case "feels" like it would burn you 
if it goes down one's shirt but lacks the heat content to cause burns. 


Specific characterizations of hot/warm are hidden among the various accounts of 
some well known falls nearby humans. Monahans, Mbale, Allende, Murchison etc.. 
If you disagree-- don't start some silly list fight--Do your own weeks of 
research reach your own conclusions! 


Iron meteorites owing to a high coefficient of therm-conductivity are likely 
very hot to the touch and warm throughout. It is probably much like a piece of 
metal cut by a welding torch--no sign of bluing but very hot on the opposite 
end of the cut. 



Elton 




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Re: [meteorite-list] Hot vs Cold again...wasmMeteorite Crashes Through Thailand House Roof

[Chris Peterson via Meteorite-list]

The fusion crust will likely be warmer than the interior when the 
meteorite hits. Not because of residual heat from melting, but because 
for the last few tens of seconds of the fall the meteorite was being 
blasted with near-ambient temperature air. It was starting to warm up to 
ambient- it simply didn't have enough time for that process to proceed 
beyond the outer few millimeters.


Chris

***
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

On 6/29/2016 1:29 AM, Graham Ensor via Meteorite-list wrote:

Elton...I agree with most of thatbut the cooling starts straight after
hot flight miles up where the air temperature is around -30 -50
deg...surely any heat in the fusion crust would dissipate very quickly up
there and then the interior temperature would then equalize to bring it
down to well below freezing as it free-falls with minimum friction to
change thatso my thinking is that even the fusion crust would also be
very cold on landing unless somehow the friction from punching the hole
heats the surface briefly...but I doubt that it would last more than a
fraction of a second.

Graham


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Re: [meteorite-list] Hot vs Cold again...wasmMeteorite Crashes Through Thailand House Roof

[Graham Ensor via Meteorite-list]

Elton...I agree with most of thatbut the cooling starts straight after
hot flight miles up where the air temperature is around -30 -50
deg...surely any heat in the fusion crust would dissipate very quickly up
there and then the interior temperature would then equalize to bring it
down to well below freezing as it free-falls with minimum friction to
change thatso my thinking is that even the fusion crust would also be
very cold on landing unless somehow the friction from punching the hole
heats the surface briefly...but I doubt that it would last more than a
fraction of a second.

Graham

On Wed, Jun 29, 2016 at 2:04 AM, MEM via Meteorite-list <
meteorite-list@meteoritecentral.com> wrote:

>
>
> This was looked into several times in the list history. I am recalling
> details from those discussions/my research.
>
> Any body arriving from space is at least -60°c and closer to -120°c to
> -180°c based on some black body studies of asteroids-- IIRC
>
>
> The temperature at the air-meteoroid boundary of entry exceeds the melting
> point of both iron and olivine. Most of that heat is carried off as an
> iron/silicate mist.  Each mili-second of incandescent flight an entirely
> new surface is formed. Inward traveling heat is being stripped away almost
> as fast as it is penetrating in low thermo-conducivity but much faster in
> high conductivity bodies (e.g iron).  The radiative cooling during dark
> flight is probably calculable and a missing factor in estimating the state
> of heat content upon landing.
>
>
> One of the Weston CT meteorites formed a frost rind shortly after falling
> after sufficient time for all reentry heat to dissipate. I do not recall
> any other comments.  This was discovered by a fireman under the dining
> table.  I do not recall which other meteorite it was but, another was noted
> to have a frost rind after a few minutes. Other falls such as Sylacaga are
> silent as to the temperature.
>
>
> Conclusions:
>
> An immediately-recovered, newly-fallen silicate/stony meteorite is
> usually--but briefly "hot/uncomfortably warm" to the touch. The rind is
> very hot but lacks much heat reservoir. Heat penetration--based on
> measuring heated rims-- is somewhere between 2mm but not more than 6mm.
> Beyond 6mm does not get above 140° F proven by the domain reset of
> magnetite orientation in Martian Meteorites.  Be it remembered that an
> empty .50 cal brass case "feels" like it would burn you if it goes down
> one's shirt but lacks the heat content to cause burns.
>
>
> Specific characterizations of hot/warm are hidden among the various
> accounts of some well known falls nearby humans. Monahans, Mbale, Allende,
> Murchison etc..  If you disagree-- don't start some silly list fight--Do
> your own weeks of research reach your own conclusions!
>
>
> Iron meteorites owing to a high coefficient of therm-conductivity are
> likely very hot to the touch and warm throughout. It is probably much like
> a piece of metal cut by a welding torch--no sign of bluing but very hot on
> the opposite end of the cut.
>
>
>
> Elton
> __
>
> Visit our Facebook page https://www.facebook.com/meteoritecentral and the
> Archives at http://www.meteorite-list-archives.com
> Meteorite-list mailing list
> Meteorite-list@meteoritecentral.com
> https://pairlist3.pair.net/mailman/listinfo/meteorite-list
>
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[meteorite-list] Hot vs. Cold again

[Pat Branch via Meteorite-list]

Have to agree with Rob and Chris on this...as I have tried the experiment 
myself.Put a rock in the freezer until stable temps...then put a blow torch on 
it for 5 seconds...then put it back in the freezer for 3 minutes (or freezer 
for 2 and on the counter for 1).It will be cold. The rock will shatter when you 
put the torch on it. Only a mass of iron will not fracture.Meteorites hitting 
the ground will be at best ambient temperature, but most will be colder than 
ambient.Pat
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[meteorite-list] Meteorite Picture of the Day

[Paul Swartz via Meteorite-list]

Today's Meteorite Picture of the Day: Haxtun TS

Contributed by: Anne Black

http://www.tucsonmeteorites.com/mpodmain.asp?DD=06/29/2016
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