Photograph of an approximately 1m wide silica dike

1
(No Transcript)
2
(No Transcript)
3
(No Transcript)
4
(No Transcript)
5
(No Transcript)
6
Photograph of an approximately 1-m wide silica
dike
7
Central part of the dike, showing agate and
fluid-inclusion-bearing course-grained quartz
(white portion). The black portion
8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
(No Transcript)
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)
17
(No Transcript)