1-20 OF 23 RESULTS FOR

MgO-Al2O 3-SiO2-H2O

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 January 2000
American Mineralogist (2000) 85 (1): 78–88.
.... ‡ Recalculated from Fe 2 O 3 . SiO 2 37.17 T Si 5.780 Al 2 O 3 38.12 Al 0.220 Z Al 6.000 Y Mg 2.030 FeO 1.28 ‡ Al 0.770 Fe 2+ 0.100 MnO 0.03 Fe 3+ 0.060 MgO 8.73 Ti 0.030 TiO2 0.26 Mn 0.003 Na 2 O 0.50 X Na 0.150 K 2 O 0.20 K...
FIGURES | View All (5)
Journal Article
Published: 01 January 2007
American Mineralogist (2007) 92 (1): 139–150.
.... For SEM and microprobe analysis, samples were disaggregated by very light grinding in ethyl alcohol, finely dispersed by pipette on a polished graphite disc, and carbon coated. Biotite analyses (MgO, FeO, Al 2 O 3 , SiO 2 , and K 2 O) were collected on a CAMECA SX-50 electron microprobe operated at 15 keV...
FIGURES | View All (8)
Journal Article
Published: 02 January 2004
Reviews in Mineralogy and Geochemistry (2004) 56 (1): 83–124.
... volume (cm 3 , J/MPa) R gas constant (J/K/mol) T r , P r reference temperature and pressure (298.15 K, 0.1 MPa) y° molar standard state property (pure phase component) Δ f h enthalpy of formation from the elements (kJ/mol) μ chemical potential (J/mol, kJ/mol) h...
FIGURES | View All (21)
Journal Article
Published: 01 November 2018
Reviews in Mineralogy and Geochemistry (2018) 84 (1): 393–459.
.... 1980 Lu 2 O 3(s) 2763 K 2615–2700 a 2000–2500 b 2700 c LuO ≫ Lu (LuO/Lu ~ 4) c a Ames et al. 1967 b Panish 1961b c Lopatin & Shugurov 2014 MgO (s) 3100 K 1950 a 1720–1960 b 2020–2160 c 1573–1973 d 1820–1983 e Mg , MgO a Porter et al. 1955b b Alcock...
FIGURES | View All (19)
Journal Article
Published: 01 April 2011
Mineralogical Magazine (2011) 75 (2): 363–374.
..., USA , 312 pp. Berman , R.G. ( 1988 ) Internally-consistent thermodynamic data for minerals in the system Na 2 O-K 2 O-CaO-MgO-FeO-Fe 2 O 3 -Al 2 O 3 -SiO 2 -TiO 2 -H 2 O-CO 2 . Journal of Petrology , 29 , 445 – 522 . Brace , W.F. , Scholz , C.H. and La Mori , P.N...
FIGURES | View All (7)
Journal Article
Published: 01 September 2016
American Mineralogist (2016) 101 (9): 2108–2117.
...Jan Cempírek; Edward S. Grew; Anthony R. Kampf; Chi Ma; Milan Novák; Petr Gadas; Radek Škoda; Michaela Vašinová-Galiová; Federico Pezzotta; Lee A. Groat; Sergey V. Krivovichev Abstract The system B 2 O 3 -Al 2 O 3 -SiO 2 (BAS) includes two ternary phases occurring naturally, boromullite, Al 9 BSi 2...
FIGURES | View All (9)
Journal Article
Published: 01 January 2001
American Mineralogist (2001) 86 (1-2): 80–91.
... to check for rare-earth elements Ce and La, and transition metals Cr and V, which have been reported in some epidotes ( Deer et al. 1986 ). The representative EMPA shown in Table 2 indicate that the concentrations of TiO 2 , Mn 2 O 3 , MgO, Na 2 O, and K 2 O are small, and if ignored, the only chemical...
FIGURES | View All (4)
Journal Article
Published: 01 October 2000
American Mineralogist (2000) 85 (10): 1342–1348.
...-AES SiO 2 Al2O 3 Na 2 O K 2 O CaO Total Excess mole fraction Sample Note: Numbers quoted as uncertainties are in percent relative to the analysed amount. Excess mole fraction is the moles of Ca, Na, and K in excess of those needed to charge balance Al. 78.6 ± 0.4...
FIGURES | View All (6)
Journal Article
Published: 01 November 2007
American Mineralogist (2007) 92 (11-12): 1844–1855.
... and mixing properties of clinopyroxene in silica-saturated system CaO-MgO-Al 2 O 3 -SiO 2 . American Mineralogist , 71 , 686 –693. Gayk, T., Kleinschrodt, R., Langosch, A., and Seidel, E. ( 1995 ) Quartz exsolution in clinopyroxene of high-pressure granulite from the Munchberg Massif. European Journal...
FIGURES | View All (7)
Journal Article
Published: 01 October 2003
Mineralogical Magazine (2003) 67 (5): 1081–1098.
.... ( 1989 ) Metamorphism and geochronology of granulites and migmatitic granulites from the Magondi Mobile Belt, Zimbabwe . Precambrian Research , 45 , 277 – 289 . Werding , G. and Schreyer , W. ( 1992 ) Synthesis and stability of werdingite, a new phase in the system MgO-Al2O 3 -B 2 O...
FIGURES | View All (12)
Journal Article
Published: 01 April 2016
American Mineralogist (2016) 101 (4): 753–768.
... the classical vibrational limit of about 3× the gas constant R per mole of atoms ( Mysen and Richet 2005 ; Richet 1984 ). Heat capacities well above this value may be observed when extra energy needs to be added to change the structure itself with increasing temperature. This involves rearranging the atoms...
FIGURES | View All (12)
Journal Article
Published: 01 January 1999
Rocky Mountain Geology (1999) 34 (2): 223–243.
.... Figure 3. Harker diagrams for Priest pluton samples alumina saturation index, Mg/Mg+Fe, and major element oxides. Mg/Mg+Fe = MgO/(MgO+FeO total ). Concentrations of the major elements also serve to distinguish the quartz monzonite, porphyritic granodiorite, and biotite-rich groups from one...
FIGURES | View All (10)
Journal Article
Published: 01 November 2015
American Mineralogist (2015) 100 (11-12): 2468–2483.
... pixel to one mineral phase (e.g., chlorite or quartz) was done using all the elements analyzed by EPMA. Chlorite X-ray raw intensity of Si, Al, Ti, Fe, Mg, Mn, Ca, Na, Cr, and K were converted into oxide wt% compositions SiO 2 , Al 2 O 3 , TiO 2 , FeO, MgO, MnO, CaO, Na 2 O, Cr 2 O 3 , and K 2 O using...
FIGURES | View All (11)
Journal Article
Published: 01 June 2001
Clays and Clay Minerals (2001) 49 (3): 204–215.
... (1997) . SiO 2 72.51 71.78 76.23 61.39 60.82 64.47 67.74 Al2O 3 12.06 13.21 11.66 20.47 20.67 19.06 16.79 TiO 2 0.09 0.1 0.11 0.16 0.17 0.15 0.13 Fe 2 O 3 0.56 0.72 1.17 1.91 2.18 1.63 1.19 MnO 0.01 0.02 0 0 0.01 0 0.02 MgO 0.27 1.33 2.79...
FIGURES | View All (10)
Journal Article
Published: 01 January 2019
American Mineralogist (2019) 104 (1): 31–46.
...(8) 0.85(8) 0.33(4) n.a. Al 2 O 3 17.53(12) 17.14(11) 17.56(9) 17.19(14) 16.50(4) 16.46(10) 22.18(17) MgO 10.00(7) 10.10(8) 10.22(6) 10.30(6) 10.03(13) 9.54(10) b.d.l. CaO 13.28(12) 13.36(12) 13.77(10) 13.48(8) 13.46(14) 12.67(5) b.d.l. BaO n.a. n.a. n.a. n.a...
FIGURES | View All (10)
Journal Article
Published: 01 April 2001
American Mineralogist (2001) 86 (4): 400–410.
... Notes: Total Fe as FeO. The weight % of oxide compounds were normalized to 100% total. Bulk = bulk sample of weathered volcanic ash, Gls = volcanic glass, Fld = feldspar, Opx = hypersthene, Cpx = augite. SiO 2 62.81 72.91 52.19 52.66 53.37 TiO 2 1.05 0.94 0.05 0.25 0.65 Al2O 3...
FIGURES | View All (9)
Journal Article
Published: 01 January 1973
Journal of the Geological Society (1973) 129 (1): 61–85.
... sills i 2 3 4 5 6 SiOz 4 x "3 - - - - 2 "4 o. i o o-97 TiOs - - 53 "9 56 "3 21 "5 18-o 22 -6 Al2Os 2o.2 o.42 o'37 7"4 7"8 8-o CrsOs 5" x 2 "4 x "5 I "4 o'o6 o- 18 FeO* 6"9 26"3 27"9 52"2 58"6 51 "5 MnO o'4I o'33 n.d. o'63 o'73 o.6o MgO 19"9 x 4"4 x 3"8 14"9 13 "4 x 5 N iO o.o 5 o. 19 n.d...
Journal Article
Published: 01 June 2014
European Journal of Mineralogy (2014) 26 (3): 381–395.
... , Fe 2 O 3tot , MgO, MnO, P 2 O 5 and K 2 O as compared to the tonalitic leucosomes. The trace and rare earth element compositions of the tonalitic leucosomes and mesosomes are shown as shaded areas in Figures 3 , 4 and 5 , respectively. Both tonalitic leucosomes and mesosomes are characterised...
FIGURES | View All (5)
Journal Article
Published: 02 January 2004
Reviews in Mineralogy and Geochemistry (2004) 56 (1): 1–81.
... in the literature. The variety names “thulite” for Mn 3+ bearing and “tanzanite” for V bearing solid solutions should be avoided, although with regard to petrographic purposes these names are convenient and helpful as they refer to zoisite crystals with distinct optical properties (see below). Furthermore...
FIGURES | View All (29)
Journal Article
Published: 01 January 1999
Rocky Mountain Geology (1999) 34 (2): 165–181.
... Figure 3. Petrogenetic grid showing reactions applicable to Black Hills migmatites. Reaction labels refer to reaction numbers in text. Patterned field indicates probable ranges of pressure and temperature for partial melting in the second sillimanite zone. Muscovite and biotite dehydration-melting...
FIGURES | View All (13)