Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions | ||
| Journal | Journal of Metamorphic Geology | ||
| Authors | Kihle, Jan | Author | |
| Harlov, D. E. | Author | ||
| Frigaard, Ø. | Author | ||
| Jamtveit, B. | Author | ||
| Year | 2010 (July 1) | Volume | 28 |
| Page(s) | 769-784 | Issue | 7 |
| Publisher | Wiley | ||
| URL | |||
| DOI | doi:10.1111/j.1525-1314.2010.00891.xSearch in ResearchGate | ||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 16520743 | Long-form Identifier | mindat:1:5:16520743:0 |
| GUID | 71beb810-aa88-4012-8552-dfa8d7d6fe50 | ||
| Full Reference | Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x | ||
| Plain Text | Kihle, Jan, Harlov, D. E., Frigaard, Ø., Jamtveit, B. (2010) Epitaxial quartz inclusions in corundum from a sapphirine-garnet boudin, Bamble Sector, SE Norway: SiO2-Al2O3 miscibility at high P-T dry granulite facies conditions. Journal of Metamorphic Geology, 28 (7) 769-784 doi:10.1111/j.1525-1314.2010.00891.x | ||
| In | (2010, September) Journal of Metamorphic Geology Vol. 28 (7) Wiley | ||
| Abstract/Notes | Abstract: An Al-rich, SiO2-deficient sapphirine–garnet-bearing rock occurs as a metapelitic boudin within granulite facies Proterozoic charnockitic gneisses and migmatites on the island of Hisøy, Bamble Sector, SE Norway. The boudin is made up of peraluminous sapphirine, garnet, corundum, spinel, orthopyroxene, sillimanite, cordierite, staurolite and biotite in a variety of assemblages. Thermobarometric calculations based on coexisting sapphirine–spinel, garnet–corundum–spinel–sillimanite, sapphirine–orthopyroxene, and garnet–orthopyroxene indicate peak-metamorphic conditions near to 930 °C at 10 kbar. Corundum occurs as single 200 to 3000 micron sized skeletal crystal intergrowths in cores of optically continuous pristine garnet porphyroblasts. Quartz occurs as 5–60 micron-sized euhedral to lobate inclusions in the corundum where it is in direct contact with the corundum with no evidence of a reaction texture. Some crystal inclusions exhibit growth zoning, which indicates that textural equilibrium was achieved. Electron Back-Scatter Diffraction (EBSD) studies reveal that the quartz inclusions share a common c-axis with the host corundum crystal. The origin of the quartz inclusions in corundum is enigmatic as recent experimental studies have confirmed the instability of quartz–corundum over geologically realistic P–T ranges. The combined EBSD and textural observations suggest the presence of a former silica-bearing proto-corundum, which underwent exsolution during post-peak-metamorphic uplift and cooling. Exsolution of quartz in corundum is probably confined to fluid-absent conditions where phase transitions by coupled dissolution–precipitation mechanisms are prevented. | ||
References Listed
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Map of Localities
Locality Pages
| Locality | Citation Details |
|---|---|
| UHT granulite outcrop, Havsøysund, Hisøy, Arendal, Agder, Norway |
Mineral Occurrences
| Locality | Mineral(s) |
|---|---|
| UHT granulite outcrop, Havsøysund, Hisøy, Arendal, Agder, Norway | ⓘ Biotite, ⓘ Cordierite, ⓘ Corundum, ⓘ Garnet Group, ⓘ Orthopyroxene Subgroup, ⓘ Quartz, ⓘ Sapphirine, ⓘ Sillimanite, ⓘ Spinel, ⓘ Staurolite |
See Also
These are possibly similar items as determined by title/reference text matching only.
