Southwestern Virginia Case Study
S5 Cranberry Gneiss (Paragneiss)
Elizabeth A. Johnson
Outcrop and Hand Sample Photos and Videos
Click on the image to enlarge.
This is a quartz-rich paragneiss. Can you see the foliation in the outcrop?
Thin Section Photos and Videos
Click on the image to make it larger. 1st = plane polarized light; 2nd = cross-polarized light.
Spot 1
Quartz porphyroclast in fine-grained quartz matrix. What type of quartz textures do you see in the following images?
Spot 2
Entire thin section scan. 1st = ppl; 2nd = xpl. Click on the image to make it larger.
Media Attributions
- OLYMPUS DIGITAL CAMERA
- OLYMPUS DIGITAL CAMERA
- S5 Cranberry 4x ppl no1
- S5 Cranberry 4x xpl no1
- S5 Cranberry 4x ppl no2
- S5 Cranberry 4x xpl no2
- A4 Mylonite 1 ppl
- S5 Cranberry xpl