1
Geology.--Thegreater part of the county is composed of crystalline schists belonging to the metamorphic rocks of the Eastern Highlands.
2
He will also include in his studies certain paleozoic formations which are immediately connected with the crystalline schists and involved in their orographic structure.
1
Hornblende schist is common over large areas in the Lake Superior region.
2
There the vein had failed, between the schist and the tertiary sandstone.
3
He says-Theformation of Dunk Island is clay slates and micaceous schist.
4
They were in a large tunnel with smooth walls of tormented schist.
5
But now, halfway up, I was staring at crumbly, dark gray schist.
6
These divisions are accented by the general finer texture of the epidotic schist.
7
To your happiness, Marianne; and I took a hearty draught of the schist.
8
Hornblende schist also occur and a compact felspathic rock in the Suris defile.
9
Steep walls of schist rise dramatically from the river, making mechanised picking impossible.
10
Here, on the great median moraine, stood a huge boulder of micaceous schist.
11
The Catoctin schist is geographically the most important of the volcanic rocks of Loudoun.
12
Of hornblende schist; these are elongate and intended to be used with both hands.
13
The hills which bound the valley of the creek are basalt, sandstone, and schist.
14
On the road to Catia we see the chloritic schist passing into hornblende schist.
15
The highest rock observed with mica schist was at an altitude of 3440 feet.
16
An hour-glass shaped tube made of gray hydro-mica schist, which resembles very compact steatite.
