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Tektites
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From: Benny J Peiser <B.J.PEISER at livjm.ac.uk
To: cambridge-conference at livjm.ac.uk <cambridge-conference at livjm.ac.uk
Date: 30. januar 1998 16:47
Subject: CC DIGEST, 29/01/98

E. P. Izokh: Australo-Asian tektites and a global disaster of about
10,000 years BP,
caused by collision of the Earth with a comet.
Geologiya I Geofizika, 1997, Vol.38, No.3, pp.628-660 [in Russian]

Russian Academy of Science, Siberian Division, Joint Institute of
Geological Geophysics & Mineralogy, Novosibirsk 630090, Russia

About 10,000 years ago, at the Pleistocene-Holocene border, some
important events occurred: the glaciation stopped abruptly; the sea
level elevated, and quick (for 20-50 years) climatic and ecological
changes took place, leading to the extinction of the so-called
mammoth fauna and exerting a direct effect on the mankind's
evolution and appearance of civilizations. These and other
disastrous events providing a distinct boundary between the
Pleistocene and the Holocene received no relevant explanation in
the Quaternary geology until now.

It is shown in the paper that the disaster under study was caused
by the collision of the Earth with an eruptive comet, brought
various volcanic tektite glasses from a remote planetary body. This
extra- terrestrial source of tektites is proven by the well-known
but not adopted paradox of tektite age, i.e. a difference in
hundreds of thousands and millions of years between the radiogenic
age of tektites (time of formation) and time of their fall onto the
Earth. The volcanic nature of tektites is supported (by analogy
with volcanic bombs, lavas, tufflavas, and extrusive formations
taking into account extraterrestrial conditions) by their long and
many- stage formation, by ordered trends of composition variability
inherent only in magmatic differentiation, etc. Relying on a
diversity of forms, structure, and composition of tektites, we made
an attempt to reconstruct various types of volcanic eruptions. Most
likely, the place of volcanic activity was a small or light
planetary body of the type of Io, Callisto, Triton, etc. with ice
crust, acid upper and relatively basic lower mantle, with small
gravitation, without atmosphere, etc., situated somewhere on the
periphery of the Solar System. It is supposed that a very powerful
explosion ejected into space some part of a stone-ice volcanic
construction, i.e. eruptive comet, according to S. K.
Ysekhsvyatsky.

The comet hypothesis permits explanation of main features of
distribution of tektites over the Earth's surface, various forms of
their connection with impact craters as well as many other features
of tektites. The common Earth impact hypothesis for tektite origin
is not able to explain all these facts; it is deeply perplexed and
is severely criticized in this paper. The <<mammoth disaster is
comparable with the so-called <<dinosaur catastrophe at the
Cretaceous-Paleogene border, which also was accompanied with impact
craters and fall of tektites. An analogy is traced with the
collision of the Shoemaker-Levi comet with the Jupiter. Thus, a
special class of eruptive comets, cosmic bodies themost dangerous
for the Earth, which are beyond attention of investigators, is
discussed for the first time.

[1]icon 

References

1. http://www.zetatalk3.com/thub00.htm