Re: [meteorite-list] Meteorites Expeditions
>Hi Pierre, >Like most tools, one uses it with some degree of discretion. I >learned about it from Steve Schoner, one of the greatest hunters >ever. I first used one with him in an L/LL strewn field and he, at least, >did so with excellent results. So, at least some people consider it >to be of some use. >Of course, I do not suggest attempting to use a screw driver to >hammer nails, but that does not make a screw driver useless. >Michael > Right (as I said in my first message)! If you are combing Holbrook or Gold Basin strewfields the cane may be useful; besides, what you will recover has anyhow not a tremendous scientific value. But the thrill of research and hunting is also to have a chance to find something unexpected. If you narrow your selection to only "the material that sticks" you may loose the Lafayette sister that was hiden among your L/LL strewnfield... Pierre __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions n Magnetic Destruction
Rafael wrote: >Thats kinda a hard view point, cuz it test us between 2 things. >Destroying a meteorite for science or obtaining more items to our >collections. Of course I dont want to harm any meteorites for >science, even though they are only for collection. But one collector >never knows when will the meteorites will be used for science...and >more if its a unique find... is this a matter of ethics?...Is there >another way for not destroying this record? > yes there is a way, both preserving the magnetic memory and highly improving the magnetic discrimination: a simple magnetic susceptibility probe, pocket sized, that gives you in a second a quantitative estimate of the amount of metal or magnetite in a piece of rock. It costs 1800 $. Seller is: [EMAIL PROTECTED] (I don't have any interest in that company!). It can easily discriminate between LL and L , L and H or even eucrite and howardite, for example. I can provide oflist as an attachment a leaflet for this device as well as a chart of magnetic susceptibility versus meteorite class. I will probably be in next Ensisheim show, in particular to demonstrate this instrument. Pierre __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions n Magnetic Destruction
Thats kinda a hard view point, cuz it test us between 2 things. Destroying a meteorite for science or obtaining more items to our collections. Of course I dont want to harm any meteorites for science, even though they are only for collection. But one collector never knows when will the meteorites will be used for science...and more if its a unique find... is this a matter of ethics?...Is there another way for not destroying this record? =0) Rafael B. Torres Space Collection 2001 http://www.geocities.com/rafael_blando From: rochette <[EMAIL PROTECTED]> To: "Rafael B. Torres" <[EMAIL PROTECTED]> CC: [EMAIL PROTECTED] Subject: Re: [meteorite-list] Meteorites Expeditions Date: Mon, 3 Mar 2003 17:15:38 +0100 >Hello, thats a good way of thinking. I want the meteorite cane just for L or >H meteorites stick to the big magnet. But I also will look with the eye for >other types of meteorites. Unfortunately I dont have any individual >Achondrite, Lunar, martian, etc...I just have slices of them, so I dont know >how they look like in situ, but I have photos. What kind of damage can a >magnet do to a meteorite?...I thought that it might break it, but what I >plan is not stick the meteorite directly to the ground, but above it. I also >have smaller magnets for checking the sample in my hands, thus not harming >the meteorite. Is that what you are telling me? > Well the arm is not mechanical just that the magnetic memory (representative of magnetic fields recorded on the parent body) is erased. So for the usual collector is does nothing, but for scientists studying this magnetic record, the stone becomes useless. PS: to be positive some rarities stick to the magnet also: E, Acapulcoites, Winowaites, Ureilite, majority of carbons, some aubrites... Pierre __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list _ The new MSN 8: advanced junk mail protection and 2 months FREE* http://join.msn.com/?page=features/junkmail __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
Rafael, >From my experience, you should start with a magnet on your first expeditions - Sorry Pierre - and after hundred - more or less- of finds you will not need a magnet to hunt. Just crust, flight marks and some signs that experienced hunters know and can hardly explain. You will not miss a lot without a magnet. The only thing you really need is plenty of TIME. But, be sure, it works. Good huntin' Rafael Best regards Michel FRANCO www.caillou-noir.com Caillou Noir 100 chemin des Campènes 74400 Chamonix France - Original Message - From: "Rafael B. Torres" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Monday, March 03, 2003 5:04 PM Subject: Re: [meteorite-list] Meteorites Expeditions > Hello, thats a good way of thinking. I want the meteorite cane just for L or > H meteorites stick to the big magnet. But I also will look with the eye for > other types of meteorites. Unfortunately I dont have any individual > Achondrite, Lunar, martian, etc...I just have slices of them, so I dont know > how they look like in situ, but I have photos. What kind of damage can a > magnet do to a meteorite?...I thought that it might break it, but what I > plan is not stick the meteorite directly to the ground, but above it. I also > have smaller magnets for checking the sample in my hands, thus not harming > the meteorite. Is that what you are telling me? > > > > =0) > Rafael B. Torres > Space Collection 2001 > http://www.geocities.com/rafael_blando > > > > > > >From: rochette <[EMAIL PROTECTED]> > >To: "Rafael B. Torres" <[EMAIL PROTECTED]> > >CC: [EMAIL PROTECTED] > >Subject: Re: [meteorite-list] Meteorites Expeditions > >Date: Mon, 3 Mar 2003 16:45:30 +0100 > > > >.. But > > >I have just one question: How do u use the meteorite cane?... > > > > > >I have a big magnet from a floppy disk, small in size, but man its > >powerful. > > >Do I use it to sweep the area with it? or just when a rock looks > > >different?...I have that big magnet attached to a cane, plus smaller > >magnets > > >for checking rocks. How does a meteorite cane works the best? > > > > >Ola Rafael > > > >This is more less a repost from about one year ago: use of strong magnet > >cause irreversible damage to the magnetic memory of a meteorite and > >therefore decreases its scientific interest. Besides if you collect only > >rocks sticking to your "cane" you will get slags but leave on the ground > >almost all rarities: rumurutites, angrites, eucrites,diogenite, howardite, > >martian, lunars, even some LL and CV. If you try to increase magnet power > >to compensate, you may collect terrestrial basalts. So what's the use of > >it, unless you know you are in a L or H strewfield??? > > > > > >Pierre > > > > > > > _ > Protect your PC - get McAfee.com VirusScan Online > http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 > > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
>Hello, thats a good way of thinking. I want the meteorite cane just for L or >H meteorites stick to the big magnet. But I also will look with the eye for >other types of meteorites. Unfortunately I dont have any individual >Achondrite, Lunar, martian, etc...I just have slices of them, so I dont know >how they look like in situ, but I have photos. What kind of damage can a >magnet do to a meteorite?...I thought that it might break it, but what I >plan is not stick the meteorite directly to the ground, but above it. I also >have smaller magnets for checking the sample in my hands, thus not harming >the meteorite. Is that what you are telling me? > Well the arm is not mechanical just that the magnetic memory (representative of magnetic fields recorded on the parent body) is erased. So for the usual collector is does nothing, but for scientists studying this magnetic record, the stone becomes useless. PS: to be positive some rarities stick to the magnet also: E, Acapulcoites, Winowaites, Ureilite, majority of carbons, some aubrites... Pierre __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
Hello, thats a good way of thinking. I want the meteorite cane just for L or H meteorites stick to the big magnet. But I also will look with the eye for other types of meteorites. Unfortunately I dont have any individual Achondrite, Lunar, martian, etc...I just have slices of them, so I dont know how they look like in situ, but I have photos. What kind of damage can a magnet do to a meteorite?...I thought that it might break it, but what I plan is not stick the meteorite directly to the ground, but above it. I also have smaller magnets for checking the sample in my hands, thus not harming the meteorite. Is that what you are telling me? =0) Rafael B. Torres Space Collection 2001 http://www.geocities.com/rafael_blando From: rochette <[EMAIL PROTECTED]> To: "Rafael B. Torres" <[EMAIL PROTECTED]> CC: [EMAIL PROTECTED] Subject: Re: [meteorite-list] Meteorites Expeditions Date: Mon, 3 Mar 2003 16:45:30 +0100 .. But >I have just one question: How do u use the meteorite cane?... > >I have a big magnet from a floppy disk, small in size, but man its powerful. >Do I use it to sweep the area with it? or just when a rock looks >different?...I have that big magnet attached to a cane, plus smaller magnets >for checking rocks. How does a meteorite cane works the best? > Ola Rafael This is more less a repost from about one year ago: use of strong magnet cause irreversible damage to the magnetic memory of a meteorite and therefore decreases its scientific interest. Besides if you collect only rocks sticking to your "cane" you will get slags but leave on the ground almost all rarities: rumurutites, angrites, eucrites,diogenite, howardite, martian, lunars, even some LL and CV. If you try to increase magnet power to compensate, you may collect terrestrial basalts. So what's the use of it, unless you know you are in a L or H strewfield??? Pierre _ Protect your PC - get McAfee.com VirusScan Online http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
.. But >I have just one question: How do u use the meteorite cane?... > >I have a big magnet from a floppy disk, small in size, but man its powerful. >Do I use it to sweep the area with it? or just when a rock looks >different?...I have that big magnet attached to a cane, plus smaller magnets >for checking rocks. How does a meteorite cane works the best? > Ola Rafael This is more less a repost from about one year ago: use of strong magnet cause irreversible damage to the magnetic memory of a meteorite and therefore decreases its scientific interest. Besides if you collect only rocks sticking to your "cane" you will get slags but leave on the ground almost all rarities: rumurutites, angrites, eucrites,diogenite, howardite, martian, lunars, even some LL and CV. If you try to increase magnet power to compensate, you may collect terrestrial basalts. So what's the use of it, unless you know you are in a L or H strewfield??? Pierre __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
Thanks a lot Michael, its seems that searching with small grid areas work good for locating meteorites. I will definetely do that, what Im plannig is If I find one meteorite I will search for more in that area, I will bring my digital so I can take pics in situ of any find...also Im planning to use markers for a find, like taking red sticks and put them in a meteorite find in order to locate the find later on, of course taking a picture of it. But I have just one question: How do u use the meteorite cane?... I have a big magnet from a floppy disk, small in size, but man its powerful. Do I use it to sweep the area with it? or just when a rock looks different?...I have that big magnet attached to a cane, plus smaller magnets for checking rocks. How does a meteorite cane works the best? PS-Thanks a lot of to all of those who answered. =0) Rafael B. Torres Space Collection 2001 http://www.geocities.com/rafael_blando _ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
LOL Michael.. in CAP we call that a grid search. Hmm don't ask me about PODs ( probability of detections).. But anyway..is most efficient way to locate downed aircraft. Rosie - Original Message - From: "Michael L Blood" <[EMAIL PROTECTED]> To: "Rafael B. Torres" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, February 28, 2003 12:34 PM Subject: Re: [meteorite-list] Meteorites Expeditions > First, you need to develop a reliable GRID - a map of the area that > will allow you to THOROUGHLY cover one section of grid per search day. > __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Meteorites Expeditions
Hi Rafael, That sounds like a GREAT plan, and, if you do it systematically, should definitely produce finds. If you don't mind "advice" from the world's most unlucky meteorite hunter (I have only found ONE, though I have searched 9 strewn fields and been with THE best on 2 occasions (Steve Schoner in Holbrook and John Blennert in Gold Basin). First, you need to develop a reliable GRID - a map of the area that will allow you to THOROUGHLY cover one section of grid per search day. You can start with the entire area, then break it up into sections, then break one section into a general grid, then break that into daily sections. Don't go from one area to another until a grid is completely done. Of course, you might want to search one small grid area one day and a small grid area in an entirely different area the next. Just finish each grid area before changing so you can, one at a time, check off each area and not end up repeating yourself later before searching unsearched areas. The meteorite cane and close observation seem to work best, though once a strewn field is found, you can then calibrate a metal detector to that PARTICULAR fall and do well. Working with Steve Schoner was a remarkable experience seeing him thoroughly cover 4 times as much area as I with a meteorite cane - and find several specimens while I ended up empty handed. Anyway, you are sure to get some more meaningful techniques for use of cane and metal detector from other list members (you can read about making a cane on my site or contact John Gwilliam who makes a beauty for a very reasonable price). HOWEVER, I consider my advice on creating a grid and thoroughly searching section by section, while checking off a record of your coverage an iron clad technique, if, indeed, your intention is to eventually thoroughly search your entire area. HAPPY HUNTING! Michael PS: Keep us informed, photograph your finds in situe and show and tell! on 2/28/03 9:32 AM, Rafael B. Torres at [EMAIL PROTECTED] wrote: > Hello List, Im just writing cuz Im planning to start my own meteorite > expeditons around my city every saturday morning, there is a vast desert > around here and Im planning going by car to a location near here and they > move on by bicyle, but I want to know how to do it best, so at least I can > find some meteorites. How do I plan this expedition?...What is best when you > go to a location to search for meteorites (its not a strewnfield)?, how do > you scan the area?...I would appreciate any help...Thanks a good luck for > all the hunters here =0) > > PS-Thanks to all people who answered my questions about the rocks I had. =0) > > > =0) > Rafael B. Torres > Space Collection 2001 > http://www.geocities.com/rafael_blando > > > > > > > _ > Help STOP SPAM with the new MSN 8 and get 2 months FREE* > http://join.msn.com/?page=features/junkmail > > > __ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list Those who desire to give up Freedom in order to gain Security, will not have, nor do they deserve, either one. ...Thomas Jefferson -- Worth Seeing: - Earth at night from satelite: http://antwrp.gsfc.nasa.gov/apod/image/0011/earthlights_dmsp_big.jpg - Interactive Lady Liberty: http://doody36.home.attbi.com/liberty.htm - Earth - variety of choices: http://www.fourmilab.ch/earthview/vplanet.html -- Panoramic view of Meteor Crater: http://www.virtualguidebooks.com/Arizona/GrandCanyonRoute66/MeteorCrater/Met eorCraterRimL.html -- Cool Calendar & Clock: http://www.yugop.com/ver3/stuff/03/fla.html -- Michael Blood Meteorites & Didgeridoos for sale at: http://www.michaelbloodmeteorites.com/ __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorites Expeditions
Hello List, Im just writing cuz Im planning to start my own meteorite expeditons around my city every saturday morning, there is a vast desert around here and Im planning going by car to a location near here and they move on by bicyle, but I want to know how to do it best, so at least I can find some meteorites. How do I plan this expedition?...What is best when you go to a location to search for meteorites (its not a strewnfield)?, how do you scan the area?...I would appreciate any help...Thanks a good luck for all the hunters here =0) PS-Thanks to all people who answered my questions about the rocks I had. =0) =0) Rafael B. Torres Space Collection 2001 http://www.geocities.com/rafael_blando _ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail __ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
