STRATIGRAPHY AND STRUCTURE CASTLETON AREA VERMONT
STRATIGRAPHY AND STRUCTURE CASTLETON AREA VERMONT
STRATIGRAPHY AND STRUCTURE CASTLETON AREA VERMONT
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PAGE<br />
Schodack formation .................. 50<br />
Zion Hill quartzite ................... 53<br />
Ordovician system .................... 55<br />
Normanskill formation ................. 55<br />
Pre-Ordovician unconformity . . . . . . . . . . . . . . . 57<br />
Dikes ........................... 58<br />
Structural geology ..................... 59<br />
Major features ...................... 59<br />
General setting .................... 59<br />
Folds ......................... 61<br />
Faults .......................... 2<br />
Taconic overthrust ...................<br />
Minor features ......................<br />
Cleavage . . . . . . . . . . . . . . . . . . . . . . . . 69<br />
Joints ......................... 71<br />
Drag folds and flowage folds ............... 71<br />
Time of deformation ................... 71<br />
Metamorphism ....................... 72<br />
Historical geology . . . . . . . . . . . . . . . . . . . . . . 74<br />
Economic geology . . . . . . . . . . . . . . . . . . . . . . 78<br />
References cited ...................... 80<br />
Illustrations<br />
FIGURE<br />
1. Geographic location of Castleton area . . . . . . . . . . . . 7<br />
2. Columnar sections of strata ................12<br />
3. Major structural features of Castleton<br />
quadrangle and vicinity .................60<br />
PLATE<br />
I. Correlation of Castleton area with adjoining<br />
regions . . . . . . . . . . . . . . Following page 57<br />
II. Geological map of Castleton quadrangle .......In pocket<br />
III. Structure sections A-A' and B-B' ..........In pocket<br />
IV. Structure sections C-C' and D-D'..........In pocket
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