Sea-surface and Air Temperatures Started Cooling Before Start of Younger Dryas

Sea-surface and Air Temperatures Started Cooling Before Start of Younger Dryas

I assume that everyone has heard about the new "Journal of geology" papers as at Burn Paper
A new day at the Cosmic Tusk
https://cosmictusk.com/9483-2/

As far as the start of the Younger Dryas and the uncertainties of science are concerned, there is:

Levac, E., Sandercombe, S. and Chmura, G.L., 2018.
The Younger Dryas in palynological records from the northern Northwest Atlantic: Does the terrestrial record lag the marine and air records?.
Palaeogeography, Palaeoclimatology, Palaeoecology, 490, pp.269-279.
https://www.sciencedirect.com/science/article/pii/S0031018217307514

"Sea-surface and air temperatures started cooling 250 and 110 years before the start of the YD, hence there is a 140 years delay between ocean and atmosphere."

and

"Vegetation reversals in N. America do not represent the start of cool conditions."

How can an impact, no matter how powerful, have started cooling Earth centuries before it happened?

This and a lot of other fine-grained inconsistencies constantly give me heretical doubts about what should be a quite appealing and simple explanation of puzzling Quaternary events.

Other papers with similar details is:

Emery-Wetherell, M.M., McHorse, B.K. and Byrd Davis, E., 2017. Spatially explicit analysis sheds new light on the Pleistocene megafaunal extinction in North America. Paleobiology, 43(4), pp. 642-655.
https://www.researchgate.net/publication/319333874_Spatially_explicit_analysis_sheds_new_light_on_the_Pleistocene_megafaunal_extinction_in_North_America

https://www.researchgate.net/profile/Meaghan_Wetherell

Woodman, N. and Athfield, N.B., 2009. Post-Clovis survival of American mastodon in the southern Great Lakes region of North America. Quaternary Research, 72(3), pp. 59-363.
https://digitalcommons.unl.edu/usgsstaffpub/625/

https://www.researchgate.net/publication/248574797_Post-Clovis_survival_of_American_Mastodon_in_the_southern_Great_Lakes_Region_of_North_America

https://www.researchgate.net/profile/Neal_Woodman


Widga, C., Lengyel, S.N., Saunders, J., Hodgins, G., Walker, J.D. and Wanamaker, A.D., 2017. Late Pleistocene proboscidean population dynamics in the North American Midcontinent. Boreas, 46(4), pp. 772-782.
https://www.researchgate.net/publication/313800551_Late_Pleistocene_proboscidean_population_dynamics_in_the_North_American_Midcontinent

https://www.researchgate.net/profile/Chris_Widga

Besides, correlation does not imply causation.

Yours

Paul H.

Hibben and YD impacts 5APR2010

Oysters out of the Mucks after a Tsunami of sorts (photo/text link)

The Walrus and the Carpenter speaking to the Oyster`s ostreolith (photo link) as portrayed by illustrator John Tenniel

• Audio - EAR the poem

link to ostreoliths from the Middle Jurassic Carmel Formation of southern Utah :
http://palaios.geoscienceworld.org/cgi/content/abstract/13/1/70
http://keckgeology.org/files/pdf/symvol/11th/Utah/cussen.pdf

pdf: palaios.geoscienceworld.org/cgi/reprint/13/1/70.pdf
----------------------------------------------------------------------

E.P. Grondine wrote

"I was wondering if anyone here would like to apologize
to Frank Hibben:

http://www.nature.com/news/2010/100331/full/464657a.html

"

Given that Frank Hibben's descriptions of his Alaskan
muck along with his interpretations of the Alaskan muck
and a major Alaskan Paleo-Indian Site have been
demonstrated by various Cultural Resource Management
reports and dozens of published peer-reviewed papers to
be a mixture of science fiction and fantasy, there is
nothing for anyone to apologize about.

Also, I have just looked at the paper, which is:

Murton, J. B., M. D. Bateman, S. R. Dallimore, J. T. Teller
and Z. Yang, 2010, Identification of Younger Dryas outburst
flood path from Lake Agassiz to the Arctic Ocean. Nature.
vol. 464, no. 7289, pp. 740-743 doi:10.1038/nature08954
http://www.nature.com/nature/journal/v464/n7289/abs/nature08954.html

There is absolutely nothing in this paper that relates
to the Alaskan loess deposits, which Hibben called "muck".
In fact, there are innumerable OSL, radiocarbon dates, and
dated ash beds that clearly demonstrate that Hibben's
“muck” deposits predate the Younger Dryas event by tens
of thousands of years to over 3 million years. What is known
about the age of the Alaskan "muck" precludes them from
having any association with the draining of Lake Agassiz.

E.P. Grondine wrote

"or to Dr. Firestone."

Again, going through the above paper, it is clear there is
nothing in it that supports any of Firestone’s claims,
i.e. his imaginary Chippewa Basin impact crater. There are
the Charity Shoals in Lake Ontario and the Can-AM structure
in Lake Huron. However, neither of these features are likely
of the right age to be related to a Younger Dryas impact.
The Can-AM structure is likely at least 500 million years
old. There is nothing for anyone to apologize for.

E.P. Grondine wrote

“By the way, the "blueberries" on Mars are impact
vapor condensates, not water condensates.”

A lot of geologists and impact specialists disagree with you.

Best Wishes,

Paul H.

Corrected URLs for "Mini ice age took hold of Europe in months" Post

oxytropidoceras at cox.net oxytropidoceras at cox.net
Fri Nov 13 13:52:05 EST 2009

The correct URLs for the papers mentioned in "Mini ice age
took hold of Europe in months" post are:

Wiersma, A. P., and H. Renssen, 2006, Model-data
comparison for the 8.2 ka BP event: confirmation of
a forcing mechanism by catastrophic drainage of
Laurentide Lakes. Quaternary Science Reviews.
vol. 25, no. 1-2, pp. 63-88.
http://dx.doi.org/10.1016/j.quascirev.2005.07.009

Another paper is:

Alleya, R. A., and A. M. Agustsdottira, 2005, The 8k
event: cause and consequences of a major Holocene
abrupt climate change. Quaternary Science Reviews.
vol. 24, no. 10-11, pp. 1123-1149.
http://dx.doi.org/10.1016/j.quascirev.2004.12.004

Mini ice age took hold of Europe in months

oxytropidoceras at cox.net oxytropidoceras at cox.net
Fri Nov 13 13:48:48 EST 2009

Mini ice age took hold of Europe in months
by Kate Ravilious, Nov. 11, 2009, New Scientist
Magazine no. 2734, http://tiny.cc/YoungerDryas
http://www.newscientist.com/article/mg20427344.800-mini-ice-age-took-hold-of-europe-in-months.html?full=true&print=true
http://www.newscientist.com/issue/2734

Dr. William Patterson’s Publications can be found at:
http://geochemistry.usask.ca/publications.html

The above article stated:

“Two studies published in 2006 show that the same
thing happened again 8200 years ago, when the
Northern hemisphere went through another cold spell”

The New Scientist article about these two studies is:

Broken ice dam blamed for 300-year chill by Kurt
Kleiner, January 10, 2006, New Scientist Magazine.
http://tiny.cc/8200BP
http://www.newscientist.com/article/dn8558-broken-ice-dam-blamed-for-300year-chill.html

“In the new papers, one in the Proceedings of the
National Academy of Sciences and the other in the
current Quaternary Science Reviews, two teams of
researchers using different computer models say
that both models show that such a freshwater flood
could shut down ocean circulation in a way that is
consistent with temperature data from the time.”

These papers demonstrate that processes other than
extraterrestrial impacts can cause events very similar
to the Youmnger Dryas interval. They are:

LeGrande, A. N., G. A. Schmidt, D. T. Shindell, C. V.
Field, R. L. Miller, D. M. Koch, G. Faluvegi, and G.
Hoffmann, 2006, Consistent simulations of multiple
proxy responses to an abrupt climate change event.
Proceedings of the National Academy of Sciences of
the United States, vol. 103 no. 4, pp. 837-842
http://www.pnas.org/content/103/4/837.abstract

Wiersma, A. P., and H. Renssen, 2006, Model-data
comparison for the 8.2 ka BP event: confirmation of
a forcing mechanism by catastrophic drainage of
Laurentide Lakes. Quaternary Science Reviews.
vol. 25, no. 1-2, pp. 63-88.
http://dx.doi.org/10.1016/j.quascirev.2005.07.009"

Another paper is:

Alleya, R. A., and A. M. Agustsdottira, 2005, The 8k
event: cause and consequences of a major Holocene
abrupt climate change. Quaternary Science Reviews.
vol. 24, no. 10-11, pp. 1123-1149.
http://dx.doi.org/10.1016/j.quascirev.2004.12.004"

Yours,

Paul H.

Kennett Talk and NOVA special on Younger Dryas Impacts

Paul bristolia at yahoo.com
Wed Mar 25 09:50:45 EDT 2009


E.P. Grondine mentioned the below NOVA Special in his post,
“[meteorite-list] NOVA special on Holocene Start Impacts and AD”.

PBS Program to Feature Two UMaine Scientists, March 23, 2009
http://www.umaine.edu/news/view_release.php?x=1237809989

Dr. Kennett gave a talk, which included a lot of research that is either
being prepared for publication, been submitted for publication, and in
press. Dr. Kennett made a very convincing case that something unique,
extraordinary, and instantaneous occurred at the beginning of the
Younger Dryas about 12,900 B. calender years ago and could be an
event that was extraterrestrial in nature. His idea that it involved
multiple, simultaneous Tunguska-like events occurring across the
North American continent.

He also, discussed and showed pictures of the research on the
Greenland ice sheet, carried out by Paul Mayewski, and Andrei
Kurbatov. Outcropping along the edge of the Greenland Ice Sheet
is a well defined Younger Dryas bed, which consists of dark grey
dusty ice with clean, white Holocene ice above it and clean, white
terminal Pleistocene ice below it. They found the nannodiamonds
and other alleged impact indicators right at and only at the basal
contact of the Younger Dryas ice layer. They found exactly what
would be expected for an layer of meteoritic debris from Tunguska-
like events.

This is a show that you do not want to miss.

It is in the realm of possibility, that decade or so from now, Dr.
West, Dr. Kennett, and other members the YDB Group will likely
be known as the "Walter Alvarezes of the Quaternary.

I am now getting together with a couple of archaeologists to do
some “prospecting” for nannodiamonds and microspherules.

Some relevant publications:

Haynes, V. C., Jr., 2008, Younger Dryas “black mats” and the
Rancholabrean termination in North America. Proceedings of the
National Academy of Sciences. vol. 105 no. 18 6520-6525
http://www.pnas.org/content/105/18/6520.abstract

Did a Significant Cool Spell Mark the Demise of Megafauna?
http://uanews.org/node/19409

Kennett, J.D., J.P. Kennett, G.J. West, J.M. Erlandson, J.R.
Johnson, I.L. Hendy, A. West, B.J. Culleton, T.L. Jones and
Thomas W. Stafford Jr., 2008, Quaternary Science Reviews.
vol. 27, no. 27-28, pp. 2530-2545.
http://dx.doi.org/10.1016/j.quascirev.2008.09.006

Kennett, D.J., J. P. Kennett, A. West, C. Mercer, S. S. Que
Hee, and L. Bement, 2009, Nanodiamonds in the Younger Dryas
Boundary Sediment Layer. Science. vol. 323, no. 5910, p. 94.
http://www.sciencemag.org/cgi/content/abstract/323/5910/94

Best Regards,

Paul H

"New Scientist" Commentary About Younger Dryas Impact Hypothesis

Paul
Sun Feb 8 17:05:33 EST 2009

Hecht, J., 2009, Beware Earth-shattering headlines.
New Scientist. no. 2694, p. 24 (February 5, 2009)

http://www.newscientist.com/article/mg20126947.000-beware-earthshattering-headlines.html

Yours,

Paul H.

Papers Dispute the Existence of Wildfires with Start of Younger Dryas

Paul
Fri Feb 6 16:30:31 EST 2009

Two papers, both of which dispute the occurrence of wildfires
associated with a hypothetical impact event at the start of the
Younger Dryas, have been recently published. They are:

1. Marlon, J. R., P. J. Bartlein, M. K. Walsh, S. P. Harrison, K. J.
Brown, M. E. Edwards, P. E. Higuera, M. J. Power, R. S.
Anderson, C. Briles, A. Brunelle, C. Carcaillet, M. Daniels,
F. S. Hu, M. Lavoie, C. Long, T. Minckley, P. J. H. Richard,
A. C. Scott, D. S. Shafer, W. Tinner, C. E. Umbanhowar, Jr.,
and C. Whitlock, 2009, Wildfire responses to abrupt climate
change in North America. Proceedings for the National
Academy of Science. Published online before print
February 3, 2009, doi: 10.1073/pnas.0808212106

Abstract at:

http://www.pnas.org/content/early/2009/02/03/0808212106.abstract

and 2. van der Hammen, T. and B. van Geel, 2008, Charcoal
in soils of the Allerød-Younger Dryas transition were the
result of natural fires and not necessarily the effect of an extra-
terrestrial impact. Netherlands Journal of Geosciences (Geologie
en Mijnbouw) vol. 87, no. 4, pp. 359-361.

PDF file at:

http://www.imep-cnrs.com/docu/charcoal.pdf
http://www.njgonline.nl/publish/articles/000404/english.html

A paper about the role of climatic change unrelated to
extraterrestrial impacts in wildfire synchrony is:

Kitzberger, T., P. M. Brown, E. K. Heyerdahl, T. W. Swetnam,
and T. T. Veblen, 2007, Contingent Pacific–Atlantic Ocean
influence on multi-century wildfire synchrony over western
North America. Proceedings of the National Academy of
Sciences of the United States of America. vol. 104 , no. 2.
pp. 543-548.

Abstract at:

http://www.pnas.org/content/104/2/543.abstract

Yours,

Paul H.