Journal of Geophysical Research: Solid EarthVolume 105, Issue B3 p. 6065-6068 CommentariesFree Access Reply [to “Comment on ‘The petrologic case for a dry lower crust’ by Bruce W. D. Yardley and John W. Valley”] B. W. D. Yardley, B. W. D. YardleySearch for more papers by this authorJ. W. Valley, J. W. ValleySearch for more papers by this author B. W. D. Yardley, B. W. D. YardleySearch for more papers by this authorJ. W. Valley, J. W. ValleySearch for more papers by this author First published: 10 March 2000 https://doi.org/10.1029/1999JB900323Citations: 19AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat References Aranovich, L. Y., R. C. Newton, H2O activity in concentrated NaCl solutions at high temperatures and pressures measured by the brucite-periclase equilibrium, Contrib. Mineral. Petrol., 125, 200– 212, 1996. Borevsky, L., S. Milanovsky, L. Yakovlev, Fluid-thermal regime in the crust-superdeep drilling data, Proceedings of the World Geothermal Congress, 1995 E. Barbier, G. Frye, E. Iglesias, G. Palmason, 975– 981, Int. Geotherm. Assoc., Auckland, New Zealand, 1995. Buseck, P. R., L. P. Galdobina, V. V. Kovalevski, N. N. Rozhkova, J. W. Valley, A. Z. Zaidenberg, Shungites: the C-rich rocks of Karelia, Russia, Can. Mineral., 35, 1363– 1378, 1997. Duba, A., T. J. Shankland, Free carbon and electrical conductivity in the Earth's mantle, Geophys. Res. Lett., 9, 1271– 1274, 1982. Duba, A., S. Heikamp, H. J. Meurer, G. Nover, G. Will, Evidence from borehole samples for the role of accessory minerals in lower crustal conductivity, Nature, 367, 59– 61, 1994. , ELEKTB Group, KTB and the electrical conductivity of the crust, J. Geophys. Res., 102, 18,289– 18,306, 1997. Emmermann, R., J. Lauterjung, The German Continental Deep Drilling Program KTB: Overview and major results, J. Geophys. Res., 102, 18179– 18201, 1997. , Saline water and gases in crystalline rocks, Spec. Pap. Geol. Assoc. Can., 33 P. Fritz, S. K. Frape, 259, 1987. Frost, B. R., K. Bucher, Is water responsible for geophysical anomalies in the deep continental crust? A petrological perspective, Tectonophysics, 231, 293– 309, 1994. Frost, B. R., W. S. Fyfe, K. Tazaki, T. Chan, Grain boundary graphite in rocks and implications for high electrical conductivity in the lower crust, Nature, 340, 134– 136, 1989. Haak, V., R. Hutton, Electrical resistivity in continental lower crust, Nature of Lower Continental Crust J. B. Dawson, D. A. Carswell, J. Hall, K. H. Wedepohl, Geol. Soc. Spec. Publ. London, 24, 35– 49, 1986. Huenges, E., J. Erzinger, J. Kück, B. Engeser, W. Kessels, The permeable crust: geohydraulic properties down to 9101 m depth, J. Geophys. Res., 102, 18255– 18266, 1997. Markl, G., J. M. Ferry, K. Bucher, Formation of saline brines and salt in the lower crust by hydration reactions in partially retrogressed granulites from the Lofoten Islands, Norway. Am. J. Sci., 298, 705– 757, 1998. Mathez, E. A., A. G. Duba, C. L. Peach, A. Léger, T. J. Shankland, G. Plafker, Electrical conductivity and carbon in metamorphic rocks of the Yukon-Tanana terrane, Alaska, J. Geophys. Res., 100, 10187– 10196, 1995. Möller, P., et al., Paleofluids and recent fluids in the upper continental crust: Results from the German Continental Deep Drilling Program (KTB), J. Geophys. Res., 102, 18233– 18254, 1997. Morrison, J., J. W. Valley, Post-granulite facies fluid infiltration in the Adirondack Mountains, Geology, 16, 513– 516, 1988. Morrison, J., J. W. Valley, Retrograde fluids in granulites-Stable isotope evidence of fluid migration, J. Geol., 99, 559– 570, 1991. Nover, G., S. Heikamp, H. J. Meurer, D. Freund, In-situ electrical conductivity and permeability of mid-crustal rocks from the KTB drilling: Consequences for high conductive layers in the earth crust, Surv. Geophys., 19, 73– 85, 1998. Roberts, J. J., A. G. Duba, E. A. Mathez, T. J. Shankland, R. Kinzler, Carbon-enhanced electrical conductivity during fracturing of rocks, J. Geophys. Res., 104, 737– 747, 1999. Shankland, T. J., A. G. Duba, E. A. Mathez, C. L. Peach, Increse of electrical conductivity with pressure as an indicator of conduction through a solid phase in midcrustal rocks, J. Geophys. Res., 102, 14741– 14750, 1997. Shmulovich, K. I., C. M. Graham, Melting of albite and dehydration of brucite in H2O-NaCl fluids to 9 kbars and 700–900° C: Implications for partial melting and water activities during high pressure metamorphism, Contrib. Mineral. Petrol., 124, 370– 382, 1996. Svensen, H., B. Jamtveit, B. W. D. Yardley, A. E. Engvik, H. Austrheim, C. Broman, Lead and bromine enrichment in eclogite facies fluids: Extreme fractionation during lower crustal hydration, Geology, 27, 467– 470, 1999. Valley, J. W., S. R. Bohlen, E. J. Essene, W. Lamb, Metamorphism in the Adirondacks; II, The role of fluids, J. Petrol., 31, 555– 596, 1990. Wannamaker, P. E., Comment on “The petrologic case tbr a dry lower crust” by Bruce W.D. Yardley and John W. Valley,J. Geophys. Res. 105B32000. Yardley, B. W. D., Effect of cooling on the water content and mechanical behaviour of metamorphosed rocks, Geology, 9, 405– 408, 1981. Yardley, B. W. D., The evolution of fluids through the metamorphic cycle, Fluid Flow and Transport in Rocks B. Jamtveit, B. W. D. Yardley, 99– 121, Chapman and Hall, New York, 1996. Yardley, B. W. D., J. W. Valley, The petrologic case for a dry lower crust, J. Geophys. Res., 102, 12173– 12185, 1997. Citing Literature Volume105, IssueB310 March 2000Pages 6065-6068 ReferencesRelatedInformation