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Re:<WAS> Physiological Adaptations - now O18/O16 ratios
Title: Re:<WAS> Physiological Adaptations - now
<SNIP - interesting
Ah yes..... I probably shouldn't do this........but I am curious.
> and studies of bone material
indicating endothermy (oxygen isotope
> ratios, SNIP>
Please, someone fill me in on how the work that initiated with
Emiliani's ocean surface temperatures, and leads to the del-O16/O18
ratio, provides you with internal temperature beyond that of
variation from one end of the organism to the other. Inquiring minds
wish to know, and do not always have the luxury of wads of additional
reading time. I figure that somebody out here is up on it and will
I am very familiar with the process of glacial/interglacial, the
sealing up of the lighter oxygen in polar ice, and in the reaction in
foraminiferal tests, especially with that of the planktonic
Neogloboquadrina pachyderma. Antarctica; been there - done that.
You are what you eat, yes? The ratio of del-O16/O18 within an
organism should be recording the ratio of the two isotopes in the
water that the organism drank or lived and created its test/skeleton
from. That, should leave you with a trail to follow for the global
climatic record of the time that you're within. I don't see how it
gives you much else, (but I am certain someone will bring me up to
speed and I welcome it).
=00= =00= =00= =00=
Marilyn D. Kressel-Wegweiser, Ph.D.
Adjunct Curator of Vertebrate Paleontology
Cincinnati Natural History Museum
Assistant Professor of Geology
Department of Geology
Ball State University
Office: 765-285-8268; 765-285-8270