STRATIGRAPHY AND STRUCTURE CASTLETON AREA VERMONT

CONTENTS
PAGE
Abstract 5
Introduction 6
General ......................... 6
Acknowledgments . . . . . . . . . . . . . . . . . . . . . 8
Previous work ...................... 9
Regional physiography .................. 10
Drainage ........................ 11
Valley sequence . . . . . . . . . . . . . . . . . . . . . . . 13
General ......................... 13
Mendon series ...................... 14
Lower Cambrian series .................. 17
Cheshire quartzite ................... 17
Dunham dolomite . . . . . . . . . . . . . . . . . . . . 18
Monkton quartzite ................... 20
Winooski dolomite ................... 20
Lpper Cambrian series .................. 21
Danby formation .................... 22
Clarendon Springs dolomite ............... 23
Lower Ordovician series .................. 24
Boardman formation .................. 24
Bascom formation ................... 27
Ordovician—Chazy group ................. 28
Burchards limestone . . . . . . . . . . . . . . . . . . . 28
Beldens formation ................... 29
Middlebury limestone .................. 30
Ordovician—Trenton group ................ 31
Orwell limestone .................... 31
Whipple marble .................... 32
Hortonville slate .................... 34
Taconic sequence ...................... 37
General ......................... 37
Lower Cambrian series .................. 38
Nassau formation ................... 38
Bomoseen grit ..................... 46
Mettawee slate .................... 47
Eddy Hill grit ..................... 49