Cross Lake Project (1983-86)

STRUCTURAL DATA

Layering:

Layering type	Strike	Dip	top Direction
bedding	286	71	N

Planar Structures:

Structure type	Strike	Dip	Separation
schistosity	286	71

Dikes and Sills:

Rock Number	Type	Width (m)	Strike	Dip
0	pegmatite	0.20	208	76

-slightly sheared quartz poor pegmatite
-photos bedding in gr. greywacke
-deformed, some boudinage 20 cm

PETROLOGIC DATA

Rock Number: 1

-Dominantly graded and parallel laminae layers with minor ripple layers.
-No E division numerous faserkiesel in semi pelite layers.
-Minor 10-30cm amphibolite layers
Turbidite

Textural Features

Type	Mineral	Min. Size	Max. Size	Abundance (%)	Unit
faser kiesel	sillimanite	1.0	10.0	4.0	cm
groundmass grainsize		0.0	0.5		mm
bedding thickness		1.0	10.0		cm

Minerals of Note

Mineral	Abundance (%)
garnet
sillimanite

Rock Number: 2

-As at 1st stop an amphibolitic wacke/tuff mixture.
-Mainly to south of greywacke

Textural Features

Type	Mineral	Min. Size	Max. Size	Abundance (%)	Unit
mafic mineral	hornblende	0.0	0.0	30.0
groundmass grainsize		0.0	0.2		mm

Minerals of Note

Mineral	Abundance (%)
hornblende
garnet

Rock Number: 3

-Bright pink with a glassy look
-numerous dikes parallel to contact with granodiorite; range from 5 cm to 1 m in thickness
-scattered potassium feldspar megacrysts

Textural Features

Type	Mineral	Min. Size	Max. Size	Abundance (%)	Unit
phenocryst	potassium feldspar	0.0	0.0		mm

PHOTOS

Graded bedding in garnet-sillimanite bearing greywacke. Thin layer of hornblende-garnet+/-dioside amphibolite exhibits boudinage. Greywacke has disruption of layering and incipient mobilizate developing in the semi-pelitic beds.

As previous photo showing prefferential shearing an isoclinal folding in the bedding plane of the most pelitic beds.

Oblique view of previous photo