Topic
Megacryst
About: Megacryst is a research topic. Over the lifetime, 336 publications have been published within this topic receiving 15489 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: In this article, the isotopic composition of Hf has been measured in 124 mantle-derived zircon megacrysts from African, Siberian and Australian kimberlites, using a laser-ablation microprobe (LAM) and a multi-collector ICPMS.
3,270 citations
TL;DR: In this paper, rare earth and other trace element abundances are determined in megacrysts of clinopyroxene, orthopyroxenes, amphibole, mica, anorthoclase, apatite and zircon, as well as their host basalts, in an effort to gather data on mineral/melt trace element partitioning during high pressure petrogenesis of basic rocks.
534 citations
Book•
1 Feb 1982
TL;DR: In this article, an introduction to the chemistry and classification of igneous environments is given, as well as a classification of metamorphic and calcareous rocks, including isograds and metamorphism of mafic and ultramafic igneous rocks.
Abstract: Part 1 Igneous rocks: introduction to igneous environments igneous minerals and textures chemistry and classification of igneous rocks crystallization of magmas origin of magmas by melting of the mantle and crust evolution of magmas - fractional crystallization and contamination petrology of the mantle igneous rocks of the oceanic lithoshere igneous rocks of convergent margins igneous rocks of continental lithosphere. Part 2 Sedimentary rocks: the occurrence of sedimentary rocks weathering and soils conglomerates and sandstones diagenesis of sandstones mudrocks limestones and dolostones other types of sedimentary rocks. Part 3 Metamorphic rocks: metamorphism and metamorphic rocks isograds, metamorphic facies, and pressure-temperature evolution assemblages, reactions and equilibrium controls of the metamorphic reactions metamorphism of mafic and ultramafic igneous rocks metamorphis of aluminous clastic rocks metamorphism of calcareous rocks.
460 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 10 |
| 2020 | 11 |
| 2019 | 15 |
| 2018 | 10 |
| 2017 | 8 |
| 2016 | 6 |