Rare Mars rocks fell in Africa
#1
Posted 18 January 2012 - 09:29 AM
#2
Posted 18 January 2012 - 10:08 AM
How can they be so certain it came from Mars?
#3
Posted 18 January 2012 - 12:13 PM
How can they be so certain it came from Mars?
That's what I'd like to know. Is Al Gore in on this?
#4
Posted 18 January 2012 - 01:11 PM
A Martian specimen will always contain peanuts and chewy caramel. No other rock has that delicious combination of confections and it does not take a scientist with a GC/MS machine to identify them.
#5
Posted 19 January 2012 - 07:58 AM
special delivery too.
fred
WSPA 28
I don't want to lead.
I don't want to follow.
I want to go my own way in peace, if possible.
#6
Posted 19 January 2012 - 08:49 AM
www.meteoritejunction.com
http://facebook.com/MeteoriteJohnno
An old Cherokee told his granson: "My son, there's a battle between two wolves inside us all.One is Evil, it's anger, jealousy, greed, resentment, inferiority, lies and ego. The other is Good. It's joy, peace, love, hope, humility, kisses and truth."
The boy thought about it and asked: "Grandfather, which wolf wins?"
The old man quietly replied: "The one you feed."
#7
Posted 19 January 2012 - 09:21 AM
Steve
#8
Posted 19 January 2012 - 09:44 AM
Like a racing car plummeting from space, a meteorite that was observed
in the middle of the day has been identified as coming from the planet
Mars. Alerted in mid December by the discovery of the meteorites
between Morocco and Algeria, Luc Labenne, a hunter of meteorites,
examined the rocks and recognized them to be a Shergottite, the most
common type of rock torn off the surface of Mars by powerful impacts.
A Martian meteorite discovery
Luc Labenne recovered the first samples of the meteorite after being
guided by local Saharans who observed the arrival of the powerful
bolide, heralding the arrival of the Martian on July 25th. He then had
two small samples of approximately two grams sent Brigitte Zanda and
Violaine Sauter, of the Museum of Natural history for analysis. "What
is obvious right now is that the crust that surrounds the meteorite is
intact, a sign that its fall was very recent. The crust on this
meteorites is very fragile and in the sand driven winds of the desert,
the crust would have deteriorated, even after only a few months."
Conformation of Martian origin
Through contact with an American specialist researcher in meteorites,
Luc Labenne has confirmed that the fragments are indeed of Martian
origin. The researcher has already obtained samples and had them
confirmed by analysis as authentic.
A unique chance for science
As the Martian origin has been confirmed, this constitutes an
exceptional opportunity for science, just as the Paris meteorite
discovered in 2010 did. Indeed, Since this meteorite has avoided the
ravages of time and contamination, it offers an opportunity to search
for the possible remnants of Martian organisms, just as the Martian
meteorite ALH 84001 did in 1996, only unlike this new meteorite, it
had sat on the surface of the Earth for 13000 years
www.meteoritejunction.com
http://facebook.com/MeteoriteJohnno
An old Cherokee told his granson: "My son, there's a battle between two wolves inside us all.One is Evil, it's anger, jealousy, greed, resentment, inferiority, lies and ego. The other is Good. It's joy, peace, love, hope, humility, kisses and truth."
The boy thought about it and asked: "Grandfather, which wolf wins?"
The old man quietly replied: "The one you feed."
#9
Posted 19 January 2012 - 10:11 AM
Tata, Morocco
Fell: 18 July 2011
Classification: Martian meteorite (Shergottite)
History: (H. Chennaoui Aoudjehane, FSAC, and A. Aaronson) At about 2 am local time on July 18, 2011, a bright fireball was observed by several people in the region of the Oued Drâa valley, east of Tata, Morocco. One eyewitness, Mr Aznid Lhou, reported that it was at first yellow in color, and then turned green illuminating all the area before it appeared to split into two parts. Two sonic booms were heard over the valley. In October 2011, nomads began to find very fresh, fusion-crusted stones in a remote area of the Oued Drâa intermittent watershed, centered about 50 km ESE of Tata and 48 km SSW of Tissint village, in the vicinity of the Oued El Gsaïb drainage and also near El Ga’ïdat plateau known as Hmadat Boû Rba’ ine. The largest stones were recovered in the El Ga’ïdat plateau, whereas the smallest one (a few grams) closer to the El Aglâb Mountains. One 47 g crusted stone was documented as being found at 29°28.917’ N, 7°36.674’ W.
Physical characteristics: Several fusion-crusted stones have been collected ranging from 1 to 987 g, with a total weight of around 7 kg. The stones are almost completely coated by glistening black fusion crust, characterized by thicker layers on exterior ridges as well as much glossier regions (above interior olivine macrocrysts). Some stones have thinner secondary fusion crust on some surfaces. The crust on some stones has been broken in places to reveal the interior, which appears overall pale gray in color with larger, very pale yellow olivine macrocrysts, and sporadic small pockets and some very thin veinlets of black glass. No terrestrial weathering is evident.
Petrography: (A. Irving and S. Kuehner, UWS): Olivine macrocrysts (to 1.5 mm) and microphenocrysts (to 0.4 mm) are set in a finer groundmass of patchily zoned pyroxene, plagioclase (maskelynite), Ti-poor chromite, ilmenite, pyrrhotite and minor merrillite. Both the larger olivine macrocrysts and smaller olivine microphenocrysts exhibit thin ferroan rims against the groundmass, and contain tiny chromite inclusions. Narrow ferroan zones also occur within the interior of some olivine macrocrysts.
Geochemistry: Olivine (cores of large macrocrysts Fa19.4-20.2, Fe/Mn=42-44; rims Fa43.2-60.4, Fe/Mn=50-55), cores of microphenocrysts Fa29.1-30.2, Fe/Mn=45-46; rims up to Fa53.3, Fe/Mn=53), orthopyroxene cores (Fs24.0-24.4Wo4.1-4.6, Fe/Mn=30-32), pigeonite (Fs26.1-51.6Wo11.9-16.9, Fe/Mn=31-35), subcalcic augite (Fs21.7-23.3Wo25.0-24.2, Fe/Mn=26-28), plagioclase (An61.1-64.3Or0.5-0.4). Oxygen isotopes (R. Tanaka, OkaU): analyses of acid-washed subsamples by laser fluorination gave, respectively δ17O = 2.849, 2.892; δ18O = 4.844, 4.943; Δ17O = 0.299, 0.290 per mil. Bulk composition (G. Chen and C. Herd, UAb) ICPMS analysis of powdered interior material gave Sm/Nd=0.646, indicating that this specimen has affinities with the depleted compositional group of shergottites.
Classification: Achondrite (Martian, olivine-phyric shergottite).
Specimens: A total of 30.3 g of type material and one polished thin section are on deposit at UWS. Other known institutional specimens include 370 g (ASU), 58 g (UAb), and 108 g (UNM). The remaining material is held by anonymous dealers and collectors.
METSOC
www.meteoritejunction.com
http://facebook.com/MeteoriteJohnno
An old Cherokee told his granson: "My son, there's a battle between two wolves inside us all.One is Evil, it's anger, jealousy, greed, resentment, inferiority, lies and ego. The other is Good. It's joy, peace, love, hope, humility, kisses and truth."
The boy thought about it and asked: "Grandfather, which wolf wins?"
The old man quietly replied: "The one you feed."
#10
Posted 20 January 2012 - 03:07 AM
Is it true this is selling for $11,000 to $12,000 a gram? If so, I wonder how much value it will lose in the coming months. Seems like the prices always come down quite a bit after awhile.
Steve
#11
Posted 20 January 2012 - 12:08 PM
#13
Posted 21 January 2012 - 03:26 AM
The first for sale sites I saw had it closer to $500/g.
You're probably right and I just misread the article. $500 a gram would be $15,000 an ounce.. That's what happens when you start getting senile.
Steve
#14
Posted 21 January 2012 - 07:09 AM
NPR's 'Science Friday' with Chris Herd of the University of Alberta
talking about the Tissint meteorite
Cheers Johnno
www.meteoritejunction.com
http://facebook.com/MeteoriteJohnno
An old Cherokee told his granson: "My son, there's a battle between two wolves inside us all.One is Evil, it's anger, jealousy, greed, resentment, inferiority, lies and ego. The other is Good. It's joy, peace, love, hope, humility, kisses and truth."
The boy thought about it and asked: "Grandfather, which wolf wins?"
The old man quietly replied: "The one you feed."
#15
Posted 29 January 2012 - 06:38 PM
www.meteoritejunction.com
http://facebook.com/MeteoriteJohnno
An old Cherokee told his granson: "My son, there's a battle between two wolves inside us all.One is Evil, it's anger, jealousy, greed, resentment, inferiority, lies and ego. The other is Good. It's joy, peace, love, hope, humility, kisses and truth."
The boy thought about it and asked: "Grandfather, which wolf wins?"
The old man quietly replied: "The one you feed."
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users













