Diamond borehole

Thin section

Rock type

Structure et texture

Mineralogical assemblages

Comments

BDD060

D60P4

Biotite bearing quartz microdiorite

Heterogranular microcrystalline

sheared

Plagioclases, chlorite, carbonates, muscovite, sericite and opaque

Carbonate, chlorite and micaceous hydrothermal alteration. Quartz veins associated with silicification,

Two generations of opaques: (i) Synkinetic shearing, (ii) Postkinetic

BDD062

DP62 P1

Amphibole diorite

Sheared

Amphibole and opaque plagioclase, chlorite and epidote

Opaque to coarse crystals destabilizing to leucoxene

BDD060

D60P3

Amphiboloschist

schistosed

micro-eyed nematoblastic

Actinote, chlorite, carbonate, and epidote

Late quartz-carbonate veinlets, several phases of brittle deformation, filled with hydrothermal fluids.

BDD060

D60P9

Amphibolo schist/Actinotite

Sheared,

schistosed

nematoblastic

Actinote, quartz, plagioclase, carbonate, epidote and opaques

BDD064

D64P5

Hydrothermalite,

Breccia

Carbonate (70%), Chlorite (15%), Damourite and séricite (5%)

Breccia infilled with carbonate and accessory chlorite, microcracks filled with chlorite

Likely protolith of quartz microdiorite.

BDD070

D70P12

Feldspathic sandstone

Mylonite

Angular quartz, damouritized plagioclase, perthite, orthoclase, incidental biotite, chlorite, muscovite and opaques

Abundant chlorite and epidote fracture-filled