[meteorite-list] Tektites lunar/terrestrial
From: Joseph Hum <jkarlhum_at_meteoritecentral.com>
Date: Thu Apr 22 09:43:30 2004 Message-ID: <412001721023919780_at_earthlink.net> ------=_NextPart_84815C5ABAF209EF376268C8 Content-type: text/plain; charset=US-ASCII Howdy! All... my view on this intriguing subject is that most tektites are lunar the reason is that if they are terrestrial what is the parent rock(s)??? i may be wrong but tektites(at least the half dozen i have) appear to be relatively homogeneous, lacking differentiated structures meaning various minerals shocked or unshocked, etc. AS many earth rocks do.... what terrestrial rocks(agglomeration of minerals) would " metamorphically" become tektites?? i'm sure we are clever enough to test and simulate tempetures, etc. to ascertain the possiblities! i personally do not see any terrestrial rocks "transfoming" themselves into any type of true tektite ! tektites are so unlike any other terrestrial rocks and actually are more similiar in structure to shale than say obsidian...( a common volcanic glass)... the internal structure so lacking in water as the moon, does not lend it self to being of terrestrial origin moreover, even if the material (larger to start) entered the atmosphere at hypervelocities the internal tempeture should not reach the point to "dissociate" H2O...from its internal structure as with any meteorite... also per one response read something about the "chicken/egg" thesis, first of all the chicken/egg paradox is a logical fallacy-- it's a trick question as "have you stopped beating your wife? either way you're damned, because you presume only two possible outcomes it may be tektites are both lunar and terrestrial or... or something ELSE a weird silicate meteorite.... it doesn't form the "fusion" crust because of the nature of the material it popps off when heated... also consider lunar meteorites, weird fusion crusts.. brownish/green with vesicles!! most meteorites don't display this sort of crust! that's all for now, Cheers! Karl(aka Joseph) --- Karl Hum --- jkarlhum_at_earthlink.net --- EarthLink: It's your Internet. ------=_NextPart_84815C5ABAF209EF376268C8 Content-Type: text/html; charset=US-ASCII <HTML><HEAD> <META content="text/html; charset=windows-1251" http-equiv=Content-Type> <META content="MSHTML 5.00.3211.1700" name=GENERATOR></HEAD> <BODY> <P> <DIV></DIV> <DIV>Howdy! All...</DIV> <DIV> </DIV> <DIV>my view on this intriguing subject is that most tektites are lunar</DIV> <DIV>the reason is that if they are terrestrial what is the parent rock(s)???</DIV> <DIV>i may be wrong but tektites(at least the half dozen i have) appear to be</DIV> <DIV>relatively homogeneous, lacking differentiated structures meaning various</DIV> <DIV>minerals shocked or unshocked, etc. AS many earth rocks do....</DIV> <DIV>what terrestrial rocks(agglomeration of minerals) would " metamorphically"</DIV> <DIV>become tektites?? i'm sure we are clever enough to test and simulate </DIV> <DIV>tempetures, etc. to ascertain the possiblities!</DIV> <DIV>i personally do not see any terrestrial rocks "transfoming" themselves</DIV> <DIV>into any type of true tektite !</DIV> <DIV>tektites are so unlike any other terrestrial rocks and actually are more</DIV> <DIV>similiar in structure to shale than say obsidian...( a common volcanic glass)...</DIV> <DIV>the internal structure so lacking in water </DIV> <DIV>as the moon, does not lend it self to being of terrestrial origin</DIV> <DIV>moreover, even if the material (larger to start) entered the atmosphere</DIV> <DIV>at hypervelocities the internal tempeture should not reach the point</DIV> <DIV>to "dissociate" H2O...from its internal structure as with any meteorite...</DIV> <DIV>also per one response read something about the "chicken/egg"</DIV> <DIV>thesis, first of all the chicken/egg paradox is a logical fallacy--</DIV> <DIV>it's a trick question as "have you stopped beating your wife?</DIV> <DIV>either way you're damned, because you presume only two possible outcomes</DIV> <DIV>it may be tektites are both lunar and terrestrial or... or something ELSE</DIV> <DIV>a weird silicate meteorite.... it doesn't form the "fusion" crust because</DIV> <DIV>of the nature of the material it popps off when heated...</DIV> <DIV>also consider lunar meteorites, weird fusion crusts.. brownish/green</DIV> <DIV>with vesicles!! most meteorites don't display this sort of crust!</DIV> <DIV> </DIV> <DIV>that's all for now, Cheers!</DIV> <DIV> </DIV> <DIV>Karl(aka Joseph)</DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV> </DIV> <DIV>--- Karl Hum</DIV> <DIV>--- <A href="mailto:jkarlhum_at_earthlink.net">jkarlhum@earthlink.net</A></DIV> <DIV>--- EarthLink: It's your Internet.</DIV> <DIV> </DIV> <P></P></BODY></HTML> ------=_NextPart_84815C5ABAF209EF376268C8-- Received on Mon 09 Jul 2001 10:39:19 PM PDT |
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