KRb ratios in Precambrian granulite terranes
β Scribed by Jerry D. Lewis; Charles M. Spooner
- Book ID
- 118883451
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 634 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0016-7037
No coin nor oath required. For personal study only.
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High Mg-A1 granulites and calc-silicate granulites provide evidence for ultra-high temperatures of metamorphism (ca. 1000Β°C) at moderate pressures (9-10 kbar) in the Eastern Ghats Belt, India. Lack of proper geochronological data prevents the dating of this extreme metamorphism. High Mg-A1 granulite
The geology of southwest Lleyn comprises two Late Precambrian terranes: the Gwna MeΓ lange in the west and the Sarn Complex in the east, separated by the Lleyn Shear Zone. The location of the terrane boundary is poorly constrained due to the limited exposure. We undertook a ground magnetic survey an