Origin of Anorthosite by Textural Coarsening: Quantitative Measurements of a Natural Sequence of Textural Development

@article{Higgins1998OriginOA,
  title={Origin of Anorthosite by Textural Coarsening: Quantitative Measurements of a Natural Sequence of Textural Development},
  author={Michael Denis Higgins},
  journal={Journal of Petrology},
  year={1998},
  volume={39},
  pages={1307-1323}
}
The textures of plagioclase crystals within large olivine oikocrysts preserve the sequence of the formation of anorthosite. Such textures have been quantified in a troctolite‐anorthosite from the Proterozoic Lac-St-Jean anorthosite complex, Canada. Crystal size distributions (CSDs) indicate that initially plagioclase nucleated and grew in an INTRODUCTION environment of linearly increasing undercooling, producing a straight- The textures of plutonic rocks are one of their most line CSD. During… Expand
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