Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books 1 - 2 of 2 on Shale, gray 2 19 2 tering extend vanning from almost nothing to several feet from....
" Shale, gray 2 19 2 tering extend vanning from almost nothing to several feet from the actual seat of burning. A quarter of a mile southeast of Muddy Bridge a small caved drift in the '"Laramie" formation exposes about 18 inches of bituminous shale underlain... "
Bulletin - United States Geological Survey - Page 98
by Geological Survey (U.S.) - 1910
Full view - About this book

Congressional Serial Set

United States - 1909
...feet from the actual seat of burning; in others, rocks a very short distance away are not affected. A quarter of a mile southeast of Muddy Bridge a small...caved drift in the Laramie formation exposes about 1 8 inches of highly bituminous shale underlain by a few feet of dirty coal. Near by the bituminous...
Full view - About this book

Contributions to Economic Geology, 1908: Mineral fuels, Part 2

Marius Robinson Campbell - Coal - 1910 - 559 pages
...SE. }. 10 16 92 Coal, good 2 2 Surface exposure. Sandstone. Coal . good 1 19 2 taring extend varying from almost nothing to several feet from the actual...causing baking, reddening, and slumping of the overlying .slialy sandstone, but the dirty coal composing the lower part of the bed is apparently not affected....
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF