Field east of quarry in Matatuck Mt sill
The igneous material melted the underlying arkosic sandstone
Thin section. Lithic source
#. CT diabase quarry
1 hornfels siltstone
2 hornfels siltstone w/tridymite needles
3 hornfels siltstone like#1
4 hornfels
5 hornfels siltstone
6 hornfels siltstone
7 hornfels w/ tridymite needles
8 hornfels
9 hornfels sandstone w/tridymite needles
10diabase. Sill
11hornfels
12jasper CT
13hornfels w/tridymite needles
14hornfels. “. ”
15hornfels. “. ”
16hornfels
17hornfels like#1
18hornfels reactions,worm burrows
19diabase. Sill
20hornfels w/tridymite needles
21hornfels
22hornfels w/patches