[meteorite-list] Related Meteorite Falls 11 years apart? Both Hammers! Both L6 Olivine-hypersthene

From: Michael Blood <mlblood_at_meteoritecentral.com>
Date: Mon, 08 Mar 2010 05:05:22 -0800
Message-ID: <C7BA3612.C116%mlblood_at_cox.net>

Again to all,
        It is very likely only 4 or 5 people in the world have specimens
Of each of these hammers. While I must admit my specimens are
small they are large enough to see that their visual appearance is
quite different between the 1971 & 1982 falls.
        Also, given that all actual meteorites (not meteors) "strike" the
earth as a consequence the collision resulting from their respective
pathways crossing at exactly the right time, the notion that two
meteorite falls (even of the same type) 11 years apart being the
result of a single event involving one parent body is unlikely to
the highest degree - certainly many magnitudes less likely than
coincidental happenstance.
        A great number of strewn fields which have been highly
searched have turned up another fall - and the more thorough
the search, the higher the number of different falls becomes
(IE Allende b, c, d, etc and Gold basin 2, 3, 4, etc).
        Therefore, the chances of a fall 11 years apart in an area
Of less than 1.5mi is not at all so difficult to imagine. The fact
They each hit a house simply increases the magnitude of
serendipity involved, but does not contradict what we already
Know about meteorite origins and falls.
        Best wishes, Michael


On 3/7/10 1:49 PM, "Michael Blood" <mlblood at cox.net> wrote:

> Hi Erich,
> All the research I have found indicates no relationship.
> Best wishes, Michael
>
>
> On 3/7/10 11:03 AM, "Eric Wichman" <eric at meteoritesusa.com> wrote:
>
>> Hi Listees,
>>
>> Perhaps this is a dumb question... The Wethersfield meteorite(s) two
>> stones fell 11 years apart, both of them crashed through the roofs of
>> homes, and both are L6 Olivine-hypersthene chondrites.
>>
>> The houses that were hit were only 1.4 miles from each other.
>>
>> Are these two pieces paired? Are they from the same meteoroid stream?
>>
>> Article on the Wethersfield Meteorite:
>> http://www.peabody.yale.edu/collections/met/met_wethersfield.html
>>
>> Newspaper Article - The Day:
>>
http://news.google.com/newspapers?nid=1915&dat=19821109&id=yAMhAAAAIBAJ&sjid=>>
Z
>> nUFAAAAIBAJ&pg=2345,1773959
>>
>>
----------------------------------------------------------------------------->>
-
>> ----
>> METEORITICAL BULLETIN ENTRY INFO:
>>
----------------------------------------------------------------------------->>
-
>> ----
>> Name: Wethersfield (1982)
>> http://tin.er.usgs.gov/meteor/metbull.php?code=24251
>> Observed fall: Yes
>> Year fell: 1982
>> Country: United States
>> Mass: 2.76 kg
>>
>> FALL OF THE WETHERSFIELD (1982), USA, STONY METEORITE
>> Name: WETHERSFIELD (1982)
>> Place of fall: Wethersfield, Connecticut, USA.
>> 41?42'38"N., 72?40'25"W.
>> Date of fall: November 8, 1982, 2114 hrs.
>> Class and type: Stone. Olivine-hypersthene chondrite (L6). Olivine Fa25
>> Number of individual
>> specimens: 1 and small fragments
>> Total weight: 2756 g
>>
>> Circumstances of fall: Following a fireball and thunder-like booms, a
>> mass of 2704 g and about 52 g of fragments were recovered after falling
>> through the roof of a house in Wethersfield, Connecticut, USA.
>>
>> Source: R.S. Clarke, Jr., Department of Mineral Sciences, Smithsonian
>> Institution, Washington, D.C. 20560, USA.
>> Note: The stone which fell in 1971 on the same town should now be
>> referred to as the Wethersfield (1971) meteorite.
>>
>> Name: Wethersfield (1971)
>> http://tin.er.usgs.gov/meteor/metbull.php?code=24250
>> Observed fall: Yes
>> Year fell: 1971
>> Country: United States
>> Mass: 350 g
>>
>> FALL OF THE WETHERSFIELD, CONNECTICUT, STONY METEORITE
>> Name: WETHERSFIELD
>> Place of fall: Wethersfield, Connecticut.
>> 72? 39'E, 41? 42'N.
>> Date of fall: April 8, 1971. Probably between 0700 and 1100 GMT, and
>> certainly between 0430 and 1130 GMT.
>> Class and type: Stony. Olivine-hypersthene chondrite.
>> Number of individual specimens: 1
>> Total weight: 350 g
>>
>> Circumstances of fall: The meteorite fell through the roof of the home
>> of Mr. and Mrs. Paul J. Cassarino and was found in the early morning
>> suspended in a ceiling. The specimen was obtained for the Smithsonian
>> Institution by Dr. Richard E. McCrosky and is now in the Division of
>> Meteorites, Washington.
>>
>> Sources: Dr. Richard E. McCrosky, Smithsonian Astrophysical Observatory,
>> Cambridge, Massachusetts. Reports of the Smithsonian Institution Center
>> for Short-Lived Phenomena, Cambridge, Massachusetts (Event number 35-71,
>> card number 1172 of April 17, 1971, and card number 1175 of April 20, 1971).
>>
----------------------------------------------------------------------------->>
-
>> ----
>>
>> What are the chances of this being the same meteoroid(s) orbiting the
>> Sun and coming back around in 11 years to smash another house not 1.4
>> miles from the first?
>>
>> Regards,
>> Eric Wichman
>> Meteorites USA
>>
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Received on Mon 08 Mar 2010 08:05:22 AM PST