Anthony
Everglades water becomes quite enriched and we have used this to trace
its flow into urban water supply. See below.
WilcoWilcox WM, Solo-Garbriele HM, Sternberg L O'R. Use of
stable isotopes to quantify flows between the Everglades and
urban areas in Miami-Dade County Florida. Journal of Hydrology
293: 1-9. 2005.
<http://penguin.bio.miami.edu/leo/PDF%20articles/Solo.pdf>
Cheers.
Leo.
Coleman, Dennis D. wrote:
>Anthony,
>We frequently find very heavy water in landfills where the water has
>been depleted in protium by methanogenesis. Hackley, et. al 1996
>(Groundwater v 34 p 827-36) reported values of +14 and we have seen
>values as high as +31 in landfill leachates.
>Dennis Coleman
>www.isotechlabs.com
>
>
>-----Original Message-----
>From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On
>Behalf Of Anthony M. Faiia
>Sent: Friday, November 11, 2005 10:28 AM
>To: [log in to unmask]
>Subject: Re: [ISOGEOCHEM] high D/H ratios
>
>--- You wrote:
>we are looking for high D/H ratios above 0 permil, preverently much more
>above this level.
>We expect such values mainly from plant water enrichment in leaves or
>better in fruits as lemons.
>Or has someone measured high emricments in other natural waters as ponds
>or shrinking lakes.
>Someone some record to report ?
>--- end of quote ---
>
>Hilmar,
>
>Our group is working on isotopic enrichment in leaves. You may have
>already seen the following article. We have a more detailed model coming
>out soon.
>
>Relative humidity recorded in tree rings; a study along a precipitation
>gradient in the Olympic Mountains, Washington, USA .
>Geochimica et Cosmochimica Acta, vol.69, no.4, pp.791-799, 15 Feb 2005
>Shu,Feng,Gazis,Anderson,Faiia,Tang,Ettl
>
>There are also reports of high dD values in precipitation (exceeding 0
>permil) from 40N to 40S in the IAEA/GNIP database at
>http://isohis.iaea.org/.
>This database has some limited surface water values as well but I
>haven't looked into them in detail.
>
>Anthony Faiia
>Dartmouth College
>Hanover, NH, USA
>
>
>
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