Hola Listeros -
There has been so much horse manure written about the YD impact by various
experts that I thought I would add my own contribution to the pile.
As far as my qualification to do this go, many manned Mars flight enthusiasts
will tell you I am an idiot; and they are joined in this opinion by 2012
fatalists, different psychics, theosophist archaeologists, followers of
Velikovsky and Cayce; Drs. Morrison and his friends,believers in Nemesis.
I should mention in this regard that I edited a presentation by D. Usikov on
Gamma Ray bursts, back many years ago when I had a brain. He bears no
responsibility for the following.
My own little road apple is this: in large hyper-velocity impacts, some photons
appear to reach gamma ray energy levels, which results in the release of
neutrons and thus in the formation of 14C and 10Be.
I am not current with the latest charts of 14C production from 50,000 BC on,
but the intcal98 chart, which is detailed and accurate enough for the
presentation at hand may be seen on page 13 of Firestone's article here:
http://www.centerfirstamericans.com/mammoth/issues/Volume-16/vol16_num2.pdf
There are several different features in this which attract notice.
First off, one notices several CURVES which Dr. Firestone fitted to the 14C
production data. These may perhpas represent either gamma ray bursts from
planets falling into their suns, gamma ray bursts from stars falling into to
their galactic centers, gamma ray burst from supernova explosions interacting
with outlying stars, etc. etc. etc. Fascinating material for conjectures...
Then perhaps one notices the separate and distinct SPIKES. The spike between
50,000 BP and 40,000 BP seems to align with the Meteor Crater impact. No impact
has been connected with the spike between 40,000 BP and 30,00 BP. Moving on, no
spikes are found between 30,000 BP and 20,000 BP, and then TWO spikes between
20,000 BP and 10,000 BP. The second of these has been connected with the YD
Boundary impact at 10,800 (or so) BCE while the earlier spike has gone
unexamined.
Taking a look at this chart, we can see that the last ice age lacked a maxima
of cold:
http://www.climate4you.com/images/VostokTemp0-42%20BP.gif
Let us call this missing minimal temperature the Grondine Minima. The
discontinuity with earlier glacial cycles begins at about the same time as the
first spike in neutrons between 20,000-10,000 BP.
One may notice that the first sea level rise occurs well before 10,800 or so
BCE:
http://www.nature.com/nature/journal/v435/n7042/fig_tab/nature03617_F2.html
and here:
http://www.nature.com/nature/journal/v502/n7473/images/nature12609-sf1.jpg
(Tarasov and Peltier's work is usually ignored various self proclaimed YD
Impact experts.
And that is one of the reasons why I call these two major impact events the
Holocene Start Impact Event.)
Where did that first bit of water come from?:
http://www.nature.com/nature/journal/v435/n7042/fig_tab/nature03617_F3.html
This is the end of the first part of this note.
Part two will cover the first large impact crater
E.P.
TWO FRAGMENTS OF A CHOCTAW IMPACT TRADITION
The traditions of the Choctaws concerning the Oka Falama
[the Returned Waters] is as follows:
FRAGMENT 1
In ancient time, after many generations of mankind had
lived and passed from the stage of being, the race became
so corrupt and wicked, brother fighting against brother and
wars deluging the Earth with human blood and carnage,
The Great Spirit became greatly displeased, and finally determined
to destroy the human race; therefore He sent a great prophet [the Peoples'
Mourner] to them
who proclaimed from tribe to tribe, and from village to village,
the fearful tidings that the human race was soon to be destroyed.
None believed his words, and lived on in their wickedness;
as if they did not care, and the seasons came again and went.
Then came the autumn of the year,
followed by many succeeding cloudy days and nights,
during which the Sun by day and the Moon and Stars by night
were concealed from the Earth;
Then succeeded a total darkness,
and the Sun seemed to have been blotted out,
while darkness and silence with a cold atmosphere
took possession of earth.
Mankind wearied and perplexed, but not repenting or reforming,
slept in darkness but to awake in darkness.
Then the mutterings of distant thunder began to be heard,
gradually becoming incessant,
until it reverberated in all parts of the sky,
and seemed to echo back even from the deep center of the Earth.
Then fear and consternation seized upon every heart
and all believed the Sun would never return.
The Magi [Spiritual Guides]of the Choctaws spoke despondently
in reply to the many interrogations of the alarmed people,
and sang their death-songs
which were but faintly heard in the mingled confusion that arose
amid the gloom of the night that seemed would have no returning morn.
Mankind went from place to place
