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Eclogite Facies Rocks paperback english
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| الناشر | Springer |
| رقم الكتاب المعياري الدولي 13 | 9789401092654 |
| اللغة | الإنجليزية |
| وصف الكتاب | The high pressures necessary for the stabilisation of eclogites in metabasic rocks andgarnetperidotitesinultrabasic rocks havebeen long recognised and experimentally established. Xenoliths of such rocks brought up in volatile charged alkaline magmas, such as kimberlites, are widely accepted to be mostly ofupper mantle derivation Chapter 13. Eclogites are predicted to be thermodynamically stable also in the lower crust beneath cratonic regions. However, xenolith suite studies indicate that kinetic and/or compositional factors limit their distribution in the lower continental crust relative to granulite fades assemblages Chapter 12. Occurrences ofeclogitesand gamet peridotites in exposed crustal metamor- phic terrains have been interpreted in the past as exotic tectonic blocks of deeper largely mantle origin, because of their apparent difference in metamorphic grade compared with the encompassing rocks. Only in recent years have metamorphic petrologists begun to recognise that such crustal terrains sometimes preserve co-facial eclogite fades, high pressure mineral parageneses in other spatially associated lithologies such as metapelites and metagranitoids. Placed in a modern, global geotectonic context, it is now apparent not only that eclogites can be expected to be stabilised in oceanic crust subducted at continental plate margins Chapter 9, but also that eclogite fades mineral parageneses may be stabilised in a wider range ofcontinental crust lithologies, where substantial tectonic thickening has occurred in continental plate collision zones Chapters 8-10. Recent exciting evidence from the Western AlpsChapter 10suggeststhat continental crust may be subducted to depths approaching 100km and iyet exhumed during subsequent orogenic uplift. |
| المراجعة التحريرية | represents a comprehensive study...one gets the impression that a real team achieved this excellent piece of work...whose high quality articles are presented in a logical manner. - Lithos; ...provides an up-to-date review of present understanding of the processes associated with eclogite facies metamorphism...Dr Carswell is to be congratulated on providing an excellent text on eclogite facies metamorphism. - Journal of Petrology |
| عدد الصفحات | 396 |
Eclogite Facies Rocks paperback english
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مجموع السلة 433.00 د.إ.
