[meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Alan Rubin
On last night's Meteorite Men show, the narrator was attempting to explain that the Widmanstatten pattern is caused by kamacite and taenite cooling at different rates. This is incorrect. How could two intergrown metal grains buried deep inside a core cool at different rates? The

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Arlene Schlazer
: [meteorite-list] iron meteorite cooling rates and Meteorite Men On last night's Meteorite Men show, the narrator was attempting to explain that the Widmanstatten pattern is caused by kamacite and taenite cooling at different rates. This is incorrect. How could two intergrown metal grains buried deep

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Michael Murray
] iron meteorite cooling rates and Meteorite Men On last night's Meteorite Men show, the narrator was attempting to explain that the Widmanstatten pattern is caused by kamacite and taenite cooling at different rates. This is incorrect. How could two intergrown metal grains buried deep

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Michael Murray
: Alan Rubin aeru...@ucla.edu To: meteorite-list@meteoritecentral.com Sent: Wednesday, December 15, 2010 9:54 AM Subject: [meteorite-list] iron meteorite cooling rates and Meteorite Men On last night's Meteorite Men show, the narrator was attempting to explain that the Widmanstatten pattern

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Count Deiro
-Original Message- From: Alan Rubin aeru...@ucla.edu Sent: Dec 15, 2010 9:54 AM To: meteorite-list@meteoritecentral.com Subject: [meteorite-list] iron meteorite cooling rates and Meteorite Men On last night's Meteorite Men show, the narrator was attempting to explain that the Widmanstatten

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Alan Rubin
The iron meteorite cooling rates generally range from about 1 - 100ºC/Myr. The reason for such slow rates is that the metal cores are buried deeply within silicate mantles and heat cannot readily escape. The coarseness of the Widmanstatten pattern is a function of cooling rate -- more slowly

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Richard Montgomery
@meteoritecentral.com Sent: Wednesday, December 15, 2010 4:21 PM Subject: Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men The iron meteorite cooling rates generally range from about 1 - 100ºC/Myr. The reason for such slow rates is that the metal cores are buried deeply within

Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men

2010-12-15 Thread Alan Rubin
...@earthlink.net To: Alan Rubin aeru...@ucla.edu; meteorite-list@meteoritecentral.com Sent: Wednesday, December 15, 2010 4:47 PM Subject: Re: [meteorite-list] iron meteorite cooling rates and Meteorite Men Hi List. (ot a chemist, me, just a collector, not ametorologist, just a passionate