Continued from page 1
Broecker and his colleagues accepted
presence of these much lower dates and suggested that
whole matter was complicated by
fact that there had been an estimated 200-year resurgence of glacial conditions, known as
Valders re-advance, around
mid-ninth millenium BC. They therefore acknowledged that their own findings might in fact relate to
recession of
ice fields after this time, bringing
dates of their suggested 'major fluctuation in climate' and
'sharp change in oceanic conditions' down to well below c. 9000 BC. (13)
THE EVIDENCE OF POLLEN SPECTRA
Further evidence that dramatic changes accompanied
transition from glacial to post-glacial ages came from
work of Herbert E. Wright Jnr, of
School of Earth Sciences at
University of Minnesota, Minneapolis, (14) and J Gordon Ogden III of
Department of Botany and Bacteriology at
Ohio Wesleyan University, Delaware. (15) Both examined
pollen spectra range from sediment cores taken from various lake sites in
Great Lakes area and found they provided clear evidence of an abrupt shift in flora at
end of glaciation. The spruce forests that had thrived in
cold harsh climate for many thousands of years were supplanted swiftly, first by pine and then by mixed hardwood forests, such as birch and oak. Deciduous trees, as we know, only thrive in a warmer climate.
The significance of these findings is
acceleration at which this transition took place. In an article for
journal 'Quaternary Paleoecology' in 1967, Ogden pointed out that some pollen spectra samples showed a 50 per cent replacement from spruce to pine occurring in just 10 centimetres of sediment. (16) In one sample taken from a site named Glacial Lake Aitken in Minnesota,
transition from 55 per cent to 18 per cent spruce pollen occurred in only 7.6 centimetres of sediment, re- presenting a deposition corresponding to just 170 years. (17) The problem here is that conventional geologists and paleoecologists consider that
transition from glacial to post-glacial ages occurred over several 'thousand' years, not just a few hundred {The time it takes for one or two trees to live and die.} years.
These findings so baffled Ogden that he was led to comment: 'The only mechanism sufficient to produce a change of
kind described here would therefore appear to be a rapid and dramatic change in temperature and/or precipitation approximately 10,000 years ago.’ (18)
What kind of climatic 'event' might have been responsible for this 'rapid and dramatic change in temperature’ {Could this relate to
buttercups found frozen and undigested in Mammoth mouths of
Arctic?} in
American Midwest, sometime around c. 8000 BC? Had it been a consequence of
proposed cometary impact that devastated
western hemisphere during this same epoch?
The knowledge that some 65 million years ago
Cretaceous period had been abruptly brought to a close by just such an impact has softened
most stubborn of minds concerning such a possibility. Broecker himself, in an article written for 'Scientific American' in 1983, now accepted that asteroid or comet impacts might be responsible for
instigation and termination of glacial ages. (19)
This is indeed what Emilio Spedicato has suggested as
mechanism behind
revolution in climate and ocean temperature experienced during this period…” (20)
We will return to implications related to this and
work of Mr. Collins throughout this encyclopedia as we develop real history from actual facts rather than
Bible Narrative. It should be evident that these climate changes had significant impacts on society and created a loss of culture and technology in certain areas of
world. There were probably people who took advantage of these spiritual and other perceptions that resulted as well.

Author of Diverse Druids World-Mysteries.com guest 'expert' Columnist for The ES Press Magazine