The temperature dependence of hydrogen isotope fractionation between clay minerals and water: Evidence from a geopressured system

Details The temperature dependence of hydrogen isotope fractionation between clay minerals and water: Evidence from a geopressured system The temperature dependence of hydrogen isotope fractionation between clay minerals and water: Evidence from a geopressured system

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gecoa..56.2547c&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 56, Issue 6, pp.2547-2554

Computer Science

3

Scientific paper

D values of water samples from two Gulf Coast geopressured fields vary linearly with temperature, while the D values from the coexisting clays remain constant and are independent of temperature. Fluid How rates on the order of millimeters per year, characteristic of Gulf Coast geopressured systems, provide adequate residence time for hydrogen isotope equilibrium to be achieved between the extant porewaters and clay minerals. Since equilibrium is achieved, these D values are used to calculate the temperature dependence of the hydrogen isotope fractionation factor between illite-smectite and water, clay-water H , between 0 and 150°C: . This equation predicts values for clay-water H at 96°C which are equal to those predicted by a similar equation derived by (1980). Above and below 96°C, this new equation predicts values which diverge from those predicted by the equation of (1980) with a difference of +9 at 150°C and -25 at 0°C. The possibility is raised that the very slow upward component of flow characteristic of Gulf Coast geopressured sediments, combined with the slow downward subsidence of the clay-rich sediments, can result in a system which is rock-dominated with respect to hydrogen.

Affiliated with

Also associated with

No associations

Rating

The temperature dependence of hydrogen isotope fractionation between clay minerals and water: Evidence from a geopressured system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The temperature dependence of hydrogen isotope fractionation between clay minerals and water: Evidence from a geopressured system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The temperature dependence of hydrogen isotope fractionation between clay minerals and water: Evidence from a geopressured system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1204663