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Hydrothermal exper

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Geochemical composition of synthetic fluids prepared for <b>hydrothermal</b> <b>exper</b>...
Published: 01 February 2019
Table 5.— Geochemical composition of synthetic fluids prepared for hydrothermal experiments. Labeled samples of UNAZ formation #1, #2, and #3 represent averaged values for shallow (< 7500 ft), deep (10,000–13,000 ft) and very deep (> 13,000 ft) Unayzah-A reservoir horizons, respectively .
Journal Article
Journal: GSA Bulletin
Published: 01 March 2009
GSA Bulletin (2009) 121 (3-4): 474-482.
.... 1993 , An unusual spectral unit in west Candor Chasma: Evidence for aqueous or hydrothermal alteration in the Martian canyons: Icarus , v. 106 , p. 380 – 391, doi: 10.1006/icar.1993.1179. 0193-4511(2005)307[1587:SIMLTT]2.0.CO;2...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2009
GSA Bulletin (2009) 121 (3-4): 615-629.
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Journal Article
Published: 01 September 1998
Journal of the Geological Society (1998) 155 (5): 773-785.
...I. B. BUTLER; A. E. FALLICK; R. W. NESBITT Abstract A large collection of hydrothermal sulphides from the Broken Spur hydrothermal vent site, including representative samples of mound sulphide materials, has been characterized using optical mineralogy and sulphur isotope analysis. Young mound...
Journal Article
Published: 01 June 1997
Journal of the Geological Society (1997) 154 (3): 377-402.
... by the hydrothermal solution upon sulphide mounds at the seepage sites. Our hypothesis is that the FeS membrane, laced with nickel, acted as a semipermeable catalytic boundary between the two fluids, encouraging synthesis of organic anions by hydrogenation and carboxylation of hydrothermal organic primers. The ocean...
Journal Article
Published: 01 February 1998
Journal of the Geological Society (1998) 155 (1): 39-59.
... of c. 280°C. Lower reflectance values of c. 2.0% R o obtained from the shales suggests thermal detachment of permeable and impermeable beds, a characteristic of pulsed hydrothermal flux. The included uraninite grains influence the orientation of the surrounding anisotropic mesophase demonstrating...
Journal Article
Published: 01 September 1998
Journal of the Geological Society (1998) 155 (5): 829-840.
... with hydrothermal quartz veins and progressed through the migration of alteration fronts away from reactivated pre-existing hydrothermal vein structures. Kaolin veins, sometimes with a quartz core, also occur. Kaolinization results in the formation of a kaolin+smectite assemblage, with no precipitation of quartz...
Journal Article
Journal: Geology
Published: 09 December 2019
Geology (2019)
.... 70, p. 983 992, https doi .org/10.1016/ j.gca.2005.11.001. Migdisov, A.A., Williams-Jones, A.E., Brugger, J., and Caporuscio, F.A., 2016, Hydrothermal transport, deposition, and fractionation of the REE: Exper- imental data and thermodynamic calculations: Chemical Geology, v. 439, p. 13 42, httpsdoi...
Journal Article
Published: 01 October 1977
Journal of the Geological Society (1977) 134 (1): 71-75.
... process responsible for vacancy creation and annihila- tion. This can lead to suppressed creep rates and the effect is particularly pronounced in materials containing refractory precipitates, materials of fine grain size and at lower tem- peratures. Exper isnents on pressure so lu t ion R. B. de Boer...
Journal Article
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 2197-2200.
...) SplNo Exper * % Fsp Glass °C ppm ppm Fsp/Gl norm % ppm ppm Fsp/Gl na KI-1-1 70 0.678 0.549 1253 711 434 1.64 0.6 na KI-39-1 89 0.559 0.366 1204 673 398 1.69 0.6 na 2K-14-2 40 0.512 0.343 1202 734 361 2.04 0.6 na 2K-14-3 71...
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Journal Article
Published: 01 February 1997
Journal of the Geological Society (1997) 154 (1): 105-109.
... of Geophysical Research 1990 95 8647 8661 Hemley J.J. Jones W.R. Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism Economic Geology 1964 59 538 569 Hippertt J.F. Microstructures and c-axis fabrics indicative of quartz dissolution in sheared...
Journal Article
Published: 01 January 2000
Reviews in Mineralogy and Geochemistry (2000) 40 (1): 193-275.
...-Diaz et al. (1990) , Kornicker et al. (1991) , Mohazzabi and Searcy (1976) , Prieto et al. (1990) , and Putnis et al. (1992 , 1995) . As discussed in this chapter, the precipitation of barite occurs in geologic settings which range from the rapid mixing of 350°C Ba-bearing hydrothermal fluids...
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Journal Article
Journal: AAPG Bulletin
Published: 01 November 1953
AAPG Bulletin (1953) 37 (11): 2455-2474.
... photograph suggests that it is a chlorite of the penninite group. At the time of the writer’s visit, no trace of the rock was left in the mined-out walls. The rock is so unlike any sedimentary rock that the writer suspects it may be a fragment of a hydrothermally altered basic dike, some of which have been...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2019
GSA Bulletin (2019)
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1973
AAPG Bulletin (1973) 57 (7): 1314-1334.
... the sediments have the same source. Quartz is relatively abundant in the upper section at Long Reef, and amounts of up to 25 percent were recorded. Both volcanic and hydrothermal types are present and generally are subangular. Vermicular kaolinite is present as detrital fragments up to 0.3 mm in length...
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Journal Article
Published: 01 December 1999
Journal of the Geological Society (1999) 156 (6): 1217-1230.
... and baddeleyite age for the Longe Range dikes, southeast Labrador Geology 1989 17 602 605 Kennan P.S. Feely M. Mohr P. The age of the Oughterard Granite, Connemara, Ireland Geological Journal 1987 22 273 280 Krogh T.E. A low-contamination method for hydrothermal...
Journal Article
Published: 01 September 1983
Journal of the Geological Society (1983) 140 (5): 725-740.
... of the applied stress. They also inferred from oxygen isotope studies that quartz vein systems, which are very com- monly developed in low grade tectonites, may often result from diffusive transfer processes over small dis- tances, and may not necessarily result from large scale hydrothermal transport. One...
Series: European Mineralogical Union Notes in Mineralogy
Published: 01 January 2005
DOI: 10.1180/EMU-notes.7.15
EISBN: 9780903056465
... such as dehydration and decarbonation. Shock metamorphic effects have been largely reproduced in shock recovery exper-iments despite the fact that experimental shocks (< 1 μs) yield distinctly shorter pressure pulses than natural impact events (up to seconds). Experimental limitations, however, exist...
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