[meteorite-list] Changes In 14C and Impacts

Mon Jun 29 13:10:31 EDT 2015

Hi Sterling, Paul, List - 

Re: Date of Kitscoty structure

Since there have been many ice ages, it seems to me that if the Kitscoty structure was more 
ancient than the most recent ice age, it would have been scoured away. 

Hence the timing of its formation would seem to agree with the documented water releases. 

Please remember that this may have been the first impact of a piece of Comet Giacobinni-Zimmer.

The 10,850 BCE impacts were likely to have been the second impacts of pieces of this comet.
But refining these dates and aligning them with cometary dynamic orbital models is well beyond my current computational abilities.

Re: Changes in 14C and impact

If I remember correctly, it was a leading Chinese nuclear physicist (unidentified by name 
in the paper) who first discussed the production of 14C in comets. 
Comet composition may be one factor in the 14 C loading.

But if we look at the InCal charts, we can see a dramatic change in 14C associated with the "Meteor" Crater impact, which we know was produced by he impact of an iron asteroid.

Hence my hypothesis that in hyper-velocity impacts, some of the photons reach gamma ray energy levels and release neutrons. If this is so, then the area around "Meteor" Crater may show or may not show some unusual isotopes, depending on their half-lives.

good hunting, everyone
E.P. Grondine
Man and Impact in the Americas

--------------------------------------------
On Mon, 6/29/15, Sterling K. Webb <sterling_k_webb at sbcglobal.net> wrote:

 Subject: RE: [meteorite-list] Changes In 14C and Impacts
 To: meteorite-list at meteoritecentral.com
 Cc: "'E.P. Grondine'" <epgrondine at yahoo.com>, "'Paul H.'" <inselberg at cox.net>
 Date: Monday, June 29, 2015, 11:07 AM

 Paul, Ed, List,

 The village is actually named
 "Kitscoty."
 https://en.wikipedia.org/wiki/Kitscoty

 Kitscoty is named
 after a village in
 Kent (U.K.) with a famous
 stone
 megalithic structure, so while
 Googling 
 for a Kitscoty Structure you have
 to 
 distinguish which Kitscoty and what 
 kind of structure is meant.
 http://albertacommunityprofiles.com/Profile/Kitscoty/2

 The "structure"
 referred to is a proposed 
 "rebound" plateau of an impact south
 of 
 Kitscoty, Alberta, Canada:
 http://www.meridianbooster.com/2009/03/18/did-a-massive-meteor-touch-down-he
 re

 I don't
 know (and am not going to Google 
 myself to
 death finding out), but I recall 
 that
 Hudson Bay and the Canadian 
 Shield is very
 old crust, at least 2.0 to 
 2.5 billion
 years old. 

 It is bound to
 have evidence of a great 
 many impacts in
 that long time span, 
 but most, of ancient
 age. Plus, the 
 Canadian Shield has been
 scoured by 
 every ice age for billions of
 years, over 
 and over and over again. Only
 evidences 
 that can survive that will be
 found.

 With typical human
 short-sightedness,
 most theories of any
 explanation of a
 feature in Northern Canada
 are always
 referred to "the last Ice
 Age," which is 
 only the last few
 million years, while 
 the Shield is
 immensely more ancient 
 and has been exposed
 for BILLIONS of 
 years.

 Northern Canada contains a great
 many craters; see:
 http://www.thelivingmoon.com/43ancients/02files/Earth_Images_09.html#Steen

 I can suggest another very
 ancient crater:
 the south-southeastern coast
 of Hudson
 Bay, above James Bay is a portion
 of
 a perfect circle and it has a nice
 cluster 
 of islands at the geometric center
 of 
 that circle like the remnants of central

 peaks. I've always thought that it
 could 
 be what's left of a very, very 
 ancient
  "astrobleme." See map
 at:
 http://www.worldatlas.com/aatlas/infopage/hudsonbay.htm

 It's very suggestive. But
 evidence? I
 know of none.

 Sterling Webb
 ----------------------------------------------------------

 -----Original Message-----
 From: Meteorite-list [mailto:meteorite-list-bounces at meteoritecentral.com]
 On
 Behalf Of E.P. Grondine via
 Meteorite-list
 Sent: Sunday, June 28, 2015
 10:53 AM
 To: meteorite-list at meteoritecentral.com
 Subject: [meteorite-list] Changes In 14C and
 Impacts

 Hi Paul - 

 Thanks for the link to that
 paper.

 I am looking forward
 to your comments on the Kiscoty structure.

 My guess is that the depth of
 the ice sheet may be estimated from the height
 of the rebound, but I am incapable of
 performing detailed calculations from
 any
 formula you may know of.

 My
 working assumption is that nearly all of the energy released
 from the
 initial blast went into different
 processes which  melted the ice sheet -
 such as the infra-red,  the boiling water
 returning to Earth, the hot impact
 dust
 returning, etc.

 E.P.
 Grondine
 Man and Impact in the
 Americas

 ______________________________________________

 Visit our Facebook page https://www.facebook.com/meteoritecentral
 and the
 Archives at http://www.meteorite-list-archives.com
 Meteorite-list mailing list
 Meteorite-list at meteoritecentral.com
 https://pairlist3.pair.net/mailman/listinfo/meteorite-list