| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | Calc-silicate isograds in the Riondel area, southeastern British Columbia |
|---|
| Journal | Canadian Journal of Earth Sciences |
|---|
| Authors | Höy, Trygve | Author |
|---|
| Year | 1976 (August 1) | Volume | 13 |
|---|
| Issue | 8 |
|---|
| Publisher | Canadian Science Publishing |
|---|
| DOI | doi:10.1139/e76-112Search in ResearchGate |
|---|
| Generate Citation Formats |
|---|
| Mindat Ref. ID | 474964 | Long-form Identifier | mindat:1:5:474964:0 |
|---|
|
| GUID | 0 |
|---|
| Full Reference | Höy, Trygve (1976) Calc-silicate isograds in the Riondel area, southeastern British Columbia. Canadian Journal of Earth Sciences, 13 (8) 1093-1104 doi:10.1139/e76-112 |
|---|
| Plain Text | Höy, Trygve (1976) Calc-silicate isograds in the Riondel area, southeastern British Columbia. Canadian Journal of Earth Sciences, 13 (8) 1093-1104 doi:10.1139/e76-112 |
|---|
| In | (1976, August) Canadian Journal of Earth Sciences Vol. 13 (8) Canadian Science Publishing |
|---|
| Abstract/Notes | Five metamorphic isograds have been mapped in the calc-schists of the Riondel area, British Columbia. These isograds are based on the following model reactions:[Formula: see text]The first four of these isograds represent discontinuities in the observed mineral assemblages and are located by plotting all occurrences of the complete reactant and product assemblages. The fifth isograd occurs over a wide zone in which the anorthite component of the plagioclase in the assemblage Ep–Ac–Q–Di–Pl increases with increasing metamorphic grade, from approximately An30 in the lower grade eastern part of the area to approximately An60 in the western part.The distribution of isograds and the systematic variation in plagioclase compositions in the Ep–Ac–Q–Di–Pl assemblage is modelled using [Formula: see text]diagrams that have been calculated at 5000 bars pressure under the simplifying constraint that[Formula: see text]. These diagrams provide a basis for estimating the physical conditions of regional metamorphism in the Riondel area. Maximum temperatures exceeded 600 °C in the highest grade part of the area and the composition of the hypothetical binary fluid phase varied from approximately [Formula: see text]in the lower grade to 0.5 or 0.6 in the higher grade areas. |
|---|
These are possibly similar items as determined by title/reference text matching only.
