Open Access

Fig. 6

image

Download original image

Photomicrographs (plane polarized light). (a) Sample GDB8. Main penetrative foliation S2 (fine-grained biotite + prismatic sillimanite) wraps around (a) a microlithon with preserved foliation S1 marked by coarse-grained biotite and prismatic sillimanite, and anhedral porphyroblasts of garnet with abundant inclusions of fine sillimanite needles. The dashed line A-B indicates the location of the chemical profile of garnet (Fig. 7a). Sample SP3B: (b) String of monazite crystals aligned parallel to the foliation S2 marked by biotite, which also crystallizes in the fractures and at the rims of garnet porphyroblasts containing inclusions of monazite. A-B indicates the location of the chemical profile of garnet (Fig. 7b). Sample SAN: (c) Biotite and rare fibrous sillimanite mark the main foliation (S2) and (d) andalusite replaced partly by chlorite. Sample MAD1A: (e) Foliation S2 marked by biotite and clusters of fibrous sillimanite. (f) Garnet porphyroblast in contact with rare staurolite crystals. The dashed line A-B indicates the location of the chemical profile (Fig. 7c). Sample KOU7: (g) Staurolite contains quartz inclusion trails that mark the foliation S1, oblique to the matrix foliation S2. (h) A-B – Location of the chemical profile (Fig. 7d) across a garnet porphyroblast with inclusions of ilmenite and quartz.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.