Sterling wrote: <And I read his statement as saying just what you suggest, that any "small crater forming event [is] much more likely to involve an iron parent..." >
A few years back I put together a web page listing the craters over 10 meters in diameter and whether or not meteorites had been found. A quick check of this page showed 15 craters with associated meteorites, 13 irons, 1 pallasite, and 1 mesosiderite. It may be that stones weather away while irons remain, but of the 14 craters formed in the last 50,000 years 12 have meteorites associated with them, 10 irons and the other 2. So it appears craters greater than 10 meters are mostly formed by iron meteorites. At least in recent history. Here is a link to the page I put together. <http://star-bits.com/impact-craters.htm> -- Eric Olson 7682 Firethorn Dr Fayetteville, NC 28311 http://www.star-bits.com ---- "Sterling K. Webb" <[EMAIL PROTECTED]> wrote: ============= > It's not impossible that the crater was left by a meteorite... This suggests he'd just finished saying that this was likely NOT a meteorite crater, but it's not impossible... And I read his statement as saying just what you suggest, that any "small crater forming event [is] much more likely to involve an iron parent..." Sterling K. Webb ------------------------------------------------------------------------- ----- Original Message ----- From: "Chris Peterson" <[EMAIL PROTECTED]> To: "Meteorite-list" <[email protected]> Sent: Thursday, September 20, 2007 6:45 PM Subject: Re: [meteorite-list] Experts Skeptical of Peruvian Meteorite Impact Maybe he meant (or said, and was misreported) that a small crater forming event was much more likely to involve an iron parent? That might be a reasonable statement. Chris ________________________________ Chris L Peterson http://www.cloudbait.com ----- Original Message ----- From: "Jason Utas" <[EMAIL PROTECTED]> To: "Meteorite-list" <[email protected]> Sent: Thursday, September 20, 2007 5:29 PM Subject: Re: [meteorite-list] Experts Skeptical of Peruvian Meteorite Impact > Hello All, > > This particular bit really makes me wonder about those fellows up at > JPL... > >>It's not impossible that the crater was left by a meteorite, Yeomans > said, but if so, then the impact object most likely was small, based > on the size of the crater. It would also probably have been a metal > meteorite, because those are the only kind of small meteorites that > don't burn up as they plummet through Earth's atmosphere, he added. > Small stony meteorites rarely make it to the surface. > > ...Does anyone else find his statement...completely wrong? I mean - > I'm used to such stuff coming out of reporters from god-knows-where, > but from a JPL employee... > > Jason ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
