Fluid-Rock Interactions

Harrison, W. J., 1990, Modeling fluid/rock interactions in sedimentary basins. In... 

Lichtner, P. C., 1988, The quasi-stationary state approximation to coupled mass transport and fluid-rock interaction in a porous medium. Geochimica et Cosmochimica Acta 52, 143-165. 

Almost nothing is known about the uppermost 4 km of the Banyu Pahit stream due to difficult field access, although differences in stream composition across this interval have been reported, van Hinsberg (2001) suggested three potential explanations for the observed changes 1) dilution by another fluid source, 2) fluid-rock interaction, and 3) mineral precipitation. 

A practical difficulty of SIMS Li isotope measurement is the paucity of appropriate mineral and rock standards with well characterized isotopic compositions. Although the estimated uncertainties are larger than for the more widespread TIMS and MC-ICP-MS techniques, the capacity to measure at very restricted spatial scales makes this a promising area of exploration, particularly for samples of restricted size and those with complex small-scale structure. The complimentary nature of in situ and bulk data in Li isotope studies shows promise for better understanding complex processes, e.g., fluid-rock interaction (Decitre et al. 2002). 

Nature of S Oquartz variation in a Slate-belt - hosted orogenic gold province, Nova Scotia, Canada evidence for fluid rock interaction... 

In both cases, the CaCb-rich brine is thought to have evolved from the NaCI-rich brine after fluid-rock interactions in the basement. The fault zones and the breccia bodies at the base of the basins represent active drainage zones where different fluid reservoirs were connected, and thus a highly favourable location for fluid mixing. Temperature and pressure changes, combined with the effects of fluid mixing, appear to be key-factors in the main stages of quartz cementation and U deposition in both Australian and... 

Taylor (1988) distinguished three types of fossil hydrothermal systems on the basis of varying water/rock ratios, temperatures, and the length of time that fluid/rock interaction proceeds ... 

A critical issue is the extent to which the isotope composition of a metamorphic rock is modified by a fluid phase. Volatilization reactions leave an isotope signature greatly different from that produced when fluid-rock interaction accompanies mineral-fluid reaction. Changes of 5-10%c are a strong indication that fluid-rock interaction rather than volatilization reactions occurred during the metamorphic event. Coupled 0-C depletions are seen in many metamorphic systems involving carbonate rocks. Figure 3.50 summarizes results from 28 studies of marble mostly... 

Two end-member simations can be postulated in which coexisting minerals would change their isotopic composition during fluid-rock interaction (Kohn and Valley 1994) ... 

Hoemes S, Van Reenen DC (1992) The oxygen isotopic composition of granuUtes and retrogressed granulites from the Limpopo Belt as a monitor of fluid-rock interaction. Precambrian Res 55 353-364... 

Romanek CS, et al. (1994) Record of fluid-rock interaction on Mars from the meteorite ALH 84001. Nature 372 655-657... 

Rudnick RL, Ionov DA (2007) Lithium elemental and isotopic disequilibrium in minerals from peridotite xenoUths from far-east Russia product of recent melt/fluid-rock interaction. Earth Planet Sci Lett 256 278-293... 

Todd CS, Evans BW (1993) Limited fluid-rock interaction at marble-gneiss contacts during Cretaceous granulite-facies metamorphism, Seward Peninsula, Alaska. Contr Miner Petrol 114 27 1... 

Durst, P. 2002. Geochemical Modelling of the Soultz-sous-Forets Hot Dry Rock Test Site Coupling Fluid-Rock Interactions to Heat and Fluid Transport. PhD thesis. University of Neuchatel, 127 p. 

Evans, J. P. Chester, F. M. 1995. Fluid rock interaction in faults of the San Andreas system ... 

Komninou, A. Yardley, B. W. 1997. Fluid-rock interaction in the Rhine Graben a thermodynamic model of the hydrothermal alteration observed in deep drilling. Geochimica et Cosmochimica Acta, 61, 515-531. 

Vallance, J., Cathelineau, M., Boiron, M.C. et al. (2003) Fluid-rock interactions and the role of late Hercynian aplite intrusion in the genesis of the Castromil gold deposit, northern Portugal. Chemical Geology, 194(1-3), 201-24. 

Several studies have utilized SIMS to examine higher-temperature fluid-rock interaction in a hydrothermal setting. Single garnets from the Dalnagorsk borosil-... 

The mode of fluid flow in the aerated zone may be changed by the hydraulic aspects of fluid waste disposal. Constant release of large amounts of fluids may cause a local rise in the hydraulic head. Coupled with chemical fluid-rock interactions, this may form new high-conducting conduits that can lead the contaminants directly into the saturated zone. In other cases, fine particles that come with the contaminating fluids can clog pores in the aerated zone and reduce through-flow. 

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