Hi Mike: The major error: 50,000 (have seen as recently as 30,000 years), not 50,000,000 years (factor of 1000)!
I do not know all of the details about the amount trucked off but I do remember there being some question about that. I know there are lot of serious and casual collectors on this list. How many of you have ever held a meteor? Yeh, I know I am a fussy scientist! One other fussy thing: "red sndstone depths." Since I do not have any of my textbooks with me, I had to Google this: Stratigraphy: 9 m of red sandstone (Moenkopi) 81 m or yellow/orange limestone (Kaibab) 200 m of gray sandstone (Coconino) PS If you subscribe to Meteorite magazine, please let me know when you get it (was sent to the post office the middle of last week). Quoting [EMAIL PROTECTED]: > Hi Larry > Actually they are only off by a factor of 100X on the error I see. > > I also noticed the article mentions a size of 550 feet deep and 4000 feet > across. This made me curious as I collect meteor crater postcards and > remembered 570 as the most often used figure. I decided to look at all my > cards....almost 125 and see if the figure 550 was ever used. The most common > number mentioned in these cards is 570 ft & 4000 ft. The second most common > is 600 feet & 4000 ft. There are also cards with 700 ft and 800 ft but these > were produced before 1940. Then it seems sometimes in the 80's it became 4150 > ft across and in the 90's it was now only 550 ft deep. So the figure MC > Enterprises uses most often now is 550 ft deep and 4150 feet across. I guess > it is getting further across and that material is filling the interior. So I > guess the reporter chose to use the 550 ft and round the distance across to > 4000 ft. > > The article also mentioned that: > >Miners, reports indicate, loaded as much as 20 tons of meteor fragments onto > > trains bound for smelting facilities in Texas where it was made into tools.> > > We discussed this on the list several years ago. If I remember correctly > there > was some debate as to the accuracy of this story. One of the problems with > the > story was the quantity. That would be 18,200 kg. How long would it take to > collect that much material? Can any of you long time members remember the > outcome of the discussion? > > Mike > -- > Mike Jensen > Jensen Meteorites > 16730 E Ada PL > Aurora, CO 80017-3137 > 303-337-4361 > IMCA 4264 > website: www.jensenmeteorites.com > > ______________________________________________ Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
