One of the mysteries of the English language finally explained.
A larger recrystallized grain occurring in a finer groundmass in a metamorphic rock.
- ‘The foliation in the lowest unit is locally overgrown by porphyroblasts of andalusite (now commonly altered to finegrained phyllosilicates) and by biotite.’
- ‘Such inclusions may be aligned, preserving evidence of the fabric in the rock when the porphyroblast grew.’
- ‘In contrast, 2 km to the NE on the southern side of the Dharlang Nala, there are kyanite grade assemblages with a weaker foliation, flattened symmetrically around garnet porphyroblasts.’
- ‘Evidence of contact metamorphism of the wall-rock includes andalusite porphyroblasts enclosed in a fabric related to Caledonian nappe emplacement.’
- ‘Cordierite in these two metamorphic belts forms rounded, opaque black to brown porphyroblasts typically less than 0.5 inch across.’
Top tips for CV writingRead more
In this article we explore how to impress employers with a spot-on CV.