Abstract
The siliceous sinter deposit at Beowawe, Nev., has a volume of 7.71 x 10/sup 7/ m/sup 3/ and contains 1.28 x 10/sup 11/ kg silica. This silica precipitated from geothermal solutions that welled-up along the Malpais Fault, a graben bounding fault. Sinter formation involved three steps. (1) Geothermal solutions saturated with quartz in the reservoir moved to the surface where they cooled and became supersaturated with amorphous silica. (2) Amorphous silica particles nucleated (heterogeneously) to produce a colloidal suspension. (3) The amorphous silica particles agglomerated and were cemented together by amorphous silica precipitating in the embayments between the particles. At least 5.58 x 10/sup 14/ kg of geothermal solution must have been produced over time to account for the mass of silica in the Beowawe Deposit. This fluid would have carried at least 4.95 x 10/sup 17/ kJ of heat to the surface. 21 references, 6 figures, 1 table.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
