Re: [meteorite-list] xenolithic breccia's?
Maybe this will help but I'm not sure that it works for all examples. I think this is something that came from the list a few years back back I can't remember who posted it. If you're out there... speak up! ;-) Genomict - A mixing of different petrologic stages of same composition (Eg. L3.8 and L6) Monomict - A mixing of the same textures and compositions. (Eg. L6 with L6) Polymict - A mixing of different textures but the same compositions (Eg. L5 light with L6 dark) Regolith - Mixing of different compositions and/or petrologic stages with a fine matrix at the surface of an asteroid, or moon, etc. Measurement of solar radiation is involved to show surface exposure implying multiple events at surface. (Eg. H3-6) All here: http://www.meteorites.com.au/glossary.html And I guess Xenoliths would be something like clasts or inclusions which are unrelated to the host matrix/material. Cheers, Jeff Kuyken I.M.C.A. #3085 www.meteorites.com.au - Original Message - From: Norm Lehrman To: Walter Branch ; met list Sent: Monday, July 11, 2005 12:04 PM Subject: Re: [meteorite-list] xenolithic breccia's? All, Maybe someone can elucidate on the terms specifically as they are used in meteorites, but in geology polymict implies varied clast composition (poly = many), while xenolith (= foreign rock), implies clasts from an external source. Cheers, Norm (http://tektitesource.com) --- Walter Branch [EMAIL PROTECTED] wrote: What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
Some of you may enjoy reading this document on the subject of nomenclature of impactites: http://www.bgs.ac.uk/scmr/docs/paper_12/scmr_paper_12_1.pdf jeff At 04:42 AM 7/11/2005, Jeff Kuyken wrote: Maybe this will help but I'm not sure that it works for all examples. I think this is something that came from the list a few years back back I can't remember who posted it. If you're out there... speak up! ;-) Genomict - A mixing of different petrologic stages of same composition (Eg. L3.8 and L6) Monomict - A mixing of the same textures and compositions. (Eg. L6 with L6) Polymict - A mixing of different textures but the same compositions (Eg. L5 light with L6 dark) Regolith - Mixing of different compositions and/or petrologic stages with a fine matrix at the surface of an asteroid, or moon, etc. Measurement of solar radiation is involved to show surface exposure implying multiple events at surface. (Eg. H3-6) All here: http://www.meteorites.com.au/glossary.html And I guess Xenoliths would be something like clasts or inclusions which are unrelated to the host matrix/material. Cheers, Jeff Kuyken I.M.C.A. #3085 www.meteorites.com.au - Original Message - From: Norm Lehrman To: Walter Branch ; met list Sent: Monday, July 11, 2005 12:04 PM Subject: Re: [meteorite-list] xenolithic breccia's? All, Maybe someone can elucidate on the terms specifically as they are used in meteorites, but in geology polymict implies varied clast composition (poly = many), while xenolith (= foreign rock), implies clasts from an external source. Cheers, Norm (http://tektitesource.com) --- Walter Branch [EMAIL PROTECTED] wrote: What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Dr. Jeffrey N. Grossman phone: (703) 648-6184 US Geological Survey fax: (703) 648-6383 954 National Center Reston, VA 20192, USA __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
Thank you Jeff, not your average light reading but definitely appreciated. Jerry Flaherty - Original Message - From: Jeff Grossman [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Monday, July 11, 2005 8:19 AM Subject: Re: [meteorite-list] xenolithic breccia's? Some of you may enjoy reading this document on the subject of nomenclature of impactites: http://www.bgs.ac.uk/scmr/docs/paper_12/scmr_paper_12_1.pdf jeff At 04:42 AM 7/11/2005, Jeff Kuyken wrote: Maybe this will help but I'm not sure that it works for all examples. I think this is something that came from the list a few years back back I can't remember who posted it. If you're out there... speak up! ;-) Genomict - A mixing of different petrologic stages of same composition (Eg. L3.8 and L6) Monomict - A mixing of the same textures and compositions. (Eg. L6 with L6) Polymict - A mixing of different textures but the same compositions (Eg. L5 light with L6 dark) Regolith - Mixing of different compositions and/or petrologic stages with a fine matrix at the surface of an asteroid, or moon, etc. Measurement of solar radiation is involved to show surface exposure implying multiple events at surface. (Eg. H3-6) All here: http://www.meteorites.com.au/glossary.html And I guess Xenoliths would be something like clasts or inclusions which are unrelated to the host matrix/material. Cheers, Jeff Kuyken I.M.C.A. #3085 www.meteorites.com.au - Original Message - From: Norm Lehrman To: Walter Branch ; met list Sent: Monday, July 11, 2005 12:04 PM Subject: Re: [meteorite-list] xenolithic breccia's? All, Maybe someone can elucidate on the terms specifically as they are used in meteorites, but in geology polymict implies varied clast composition (poly = many), while xenolith (= foreign rock), implies clasts from an external source. Cheers, Norm (http://tektitesource.com) --- Walter Branch [EMAIL PROTECTED] wrote: What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list Dr. Jeffrey N. Grossman phone: (703) 648-6184 US Geological Survey fax: (703) 648-6383 954 National Center Reston, VA 20192, USA __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] xenolithic breccia's?
Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? On Google, I only find Ghubara, but that can't be the only one. Thanks, Tom peregrineflier __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
All, Maybe someone can elucidate on the terms specifically as they are used in meteorites, but in geology polymict implies varied clast composition (poly = many), while xenolith (= foreign rock), implies clasts from an external source. Cheers, Norm (http://tektitesource.com) --- Walter Branch [EMAIL PROTECTED] wrote: What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] xenolithic breccia's?
Hi Norm, Right. I thought polymict breccias conisted of samples from different rocks cemented together (i.e., external sources). -Walter - - Original Message - From: Norm Lehrman [EMAIL PROTECTED] To: Walter Branch [EMAIL PROTECTED]; met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 10:04 PM Subject: Re: [meteorite-list] xenolithic breccia's? All, Maybe someone can elucidate on the terms specifically as they are used in meteorites, but in geology polymict implies varied clast composition (poly = many), while xenolith (= foreign rock), implies clasts from an external source. Cheers, Norm (http://tektitesource.com) --- Walter Branch [EMAIL PROTECTED] wrote: What is the difference between a polymict breccia and xenolithic breccia? -Walter Branch - - Original Message - From: Darren Garrison [EMAIL PROTECTED] To: met list meteorite-list@meteoritecentral.com Sent: Sunday, July 10, 2005 9:06 PM Subject: Re: [meteorite-list] xenolithic breccia's? On Sun, 10 Jul 2005 17:28:34 -0700, Tom Knudson [EMAIL PROTECTED] wrote: Hello good people of the list!!! Sure is slow today!!! So, what is a xenolithic breccia? What meteorites are considered a xenolithic breccia? http://en.wikipedia.org/wiki/Xenolith http://en.wikipedia.org/wiki/Breccia On Google, I only find Ghubara, but that can't be the only one. One of my favorites was just mentioned a few days back-- NWA 3119 http://www.meteorites.com.au/features/nwa3119.html and my much more modest piece http://webpages.charter.net/garrison6328/nwa3119_both.jpg __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
