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2021 Fall Date Project

The MPOD Caretakers want to present meteorite falls on their fall dates. For example, Sikhote Aline on 12 February.

This Project will not dip into the MPOD archives so the Caretakers will appreciate anything you can contribute.

To reserve a date just let us know. Thank you in advance :)

Fall Calendar           Dates reserved so far


Tilden   contributed by Frank Cressy   MetBul Link

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View all entries for   Meteorite (1)   Frank Cressy (11)

Find/Fall Anniversary
14.4 gram crusted part slice.   L6

TKW 74.8 kg. Observed fall 13 July 1927, Randolph County, Illinois, USA.


Frank writes:
The pictured specimen is a 14.4 gram crusted part slice of the Tilden meteorite that fell about noon in southern Illinois. Three meteorites were recovered along a 2-1/2 mile NW-SE path. The three masses weighed 49.9 kg, 20.9 kg, and 4.1 kg with the largest mass located to the northwest. The 4.1 kg individual was immediately recovered after it fell and found to be cold, "not like ice but noticeably cold." The 20.9 kg was also found to be cold when it was recovered a few minutes after it fell. Most of the meteorite is held in institutional collections.

Photo 1 shows the interior of this L6 chondrite.

Photo 2 shows the fresh black crusted edge of the specimen.

Photo 3 shows a map of the find locations near Tilden. Interestingly, each of the meteorites was recovered in a different county.

Photo 4 shows the 20.9 kg meteorite being held by Harry Hirte who dug the mass out of a 17-inch-deep impact pit.

The figures shown in Photo 3 and 4 are from Crook & Farrington (1930) "The Tilden Meteorites", Transactions of the Illinois State Academy of Science, vol. XXII.
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Found at the arrow (green or red) on the map below


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Anne Black
 7/13/2021 2:44:10 PM
You are very welcome, Frank. Everybody needs to read your book, all the information is there.
Twink Monrad
 7/13/2021 12:16:15 PM
Great info and love the map
Frank Cressy
 7/13/2021 9:59:35 AM
For the high TKW you expect more to be available, but this piece is only the second specimen I've ever seen in over 2 decades of collecting. This specimen originally came from the King collection and then through Impactika. Thank you Anne. Most of the mass of this fall resides resides in the Illinois State Museum and at Iowa State University.
Bernd Pauli
 7/13/2021 9:50:03 AM
Nor have I, Mendy, and the info in the 5th edtion of the Meteorite Catalogue is pretty sparse too: "Three stones fell, 110 lb, 46 lb, and 9 lb. Description, C.C.Wylie, Science,1927, 66, p. 451 (M.A. 4-422). Further description, with doubtful analysis, A.R. Crook and O.C. Farrington, Trans. Illinois Acad.Sci., 1930, 22, p. 442 (M.A. 4-422)."
Mendy Ouzillou
 7/13/2021 9:30:38 AM
I had never heard of this meteorite. Now that I know ... wow!

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