|
|
|
|
|
|
|
12 CONTENTS
|
|
|
|
|
|
PAGE
|
|
|
|
The Rockwood Formation.....................................
|
... 181
|
|
|
|
The Lewistown Formation...................................
|
... 182
|
|
|
|
The Devonian Period...........................................
|
... 182
|
|
|
|
The Monterey Formation.....................................
|
... 182
|
|
|
|
The Romney Formation.......................................
|
... 183
|
|
|
|
The Jennings Formation.....................................
|
... 183
|
|
|
|
The Hampshire Formation...................................
|
... 184
|
|
|
|
The Carboniferous Period.......................................
|
... 184
|
|
|
|
The Pocono Formation.......................................
|
... 184
|
|
|
|
The Greenbrier Formation.....................................
|
... 185
|
|
|
|
The Mauch Chunk Formation.................................
|
... 185
|
|
|
|
The Pottsville Formation.....................................
|
... 185
|
|
|
|
The Savage Formation.......................................
|
... 1 86
|
|
|
|
The Bayard Formation.......................................
|
... 186
|
|
|
|
The Fairfax Formation.......................................
|
... 186
|
|
|
|
The Elkgarden Formation.....................................
|
... 186
|
|
|
|
The Permian Period...........................................
|
... 187
|
|
|
|
The Frostburg Formation.....................................
|
... 187
|
|
|
|
THE COASTAL PLAIN.............................................
|
... 187
|
|
|
|
The Jurassic Period...........................................
|
... 190
|
|
|
|
The Patuxent Formation.....................................
|
... 190
|
|
|
|
The Arundel Formation.......................................
|
... 190
|
|
|
|
The Cretaceous Period.........................................
|
... 191
|
|
|
|
The Patapsco Formation.....................................
|
... 191
|
|
|
|
The Raritan Formation.......................................
|
... 192
|
|
|
|
The Matawan Formation.....................................
|
... 193
|
|
|
|
The Monmouth Formation...................................
|
193
|
|
|
|
The Rancocas Formation.....................................
|
... 194
|
|
|
|
The Eocene Period...............................................
|
... 195
|
|
|
|
The Pamunkey Formation.......................................
|
... 195
|
|
|
|
The Neocene Period.............................................
|
... 196
|
|
|
|
The Chesapeake Formation.....................................
|
... 197
|
|
|
|
The Lafayette Formation.......................................
|
... 198
|
|
|
|
The Pleistocene Period...........................................
|
... 199
|
|
|
|
The Columbia Formation.......................................
|
... 199
|
|
|
|
REVIEW OF GEOLOGICAL CHRONOLOGY AS REPRESENTED IN MARYLAND
|
... 200
|
|
|
|
MINERAL RESOURCES.................................................
|
... 205
|
|
|
|
GENERAL STATEMENT...............................................
|
... 205
|
|
|
|
SPECIAL DESCRIPTIONS.............................................
|
... 206
|
|
|
|
The Building and Decorative Stones.............................
|
... 206
|
|
|
|
The Lime and Cement Products.................................
|
... 214
|
|
|
|
The Clays.....................................................
|
... 214
|
|
|
|
The Sands.....................................................
|
... 216
|
|
|
|
The Porcelain Materials.........................................
|
... 216
|
|
|
|
The Marls.....................................................
|
... 217
|
|
|
|
The Iron Ores.................................................
|
... 218
|
|
|
|
The Coals....................................................
|
... 219
|
|
|
|
The Gold Deposits.............................................
|
... 221
|
|
|
|
|
|
|
