 | 1856 - 974 halaman
...with a fine-grained friable sandstone, and sometimes with thick beds of clay, the interposing layers being often dark, from the dissemination of bituminous..."The coal, when recently extracted from the bed," says Sir John Richardson, "is massive, and most generally shows the woody structure distinctly; the... | |
 | Geological Society of London - 1855 - 814 halaman
...with a fine-grained friable sandstone, and sometimes with thick beds of clay, the interposing layers being often dark, from -the dissemination of bituminous..." The coal, when recently extracted from the bed," says Sir John Richardson, "is massive, and most generally shows the woody structure distinctly ; the... | |
 | United States. Congress. House - 1862 - 664 halaman
...with a fine grained friable sandstone ;md sometimes with thick beds of clay, the interposing layers being often dark from the dissemination of bituminous..." The coal when recently extracted from the bed," says Sir John Richardson, " is massive, and most generally ehows the woody structure distinctly ; the... | |
 | Archibald McDonald - 1872 - 154 halaman
...which exceed three yards, separated by layers of gravel and sand, alter" nating with a fine grained friable sandstone, and sometimes with thick " beds...clay, the interposing layer being often dark, from the dissemin" ation of bituminous matter. The coal, when recently extracted from " the bed, is massive,... | |
 | Canada. Parliament. Senate - 1888 - 440 halaman
...thickest of which exceed 3 yards, separated by layers of gravel and sand, alternating with a fine grained friable sandstone, and sometimes with thick beds of...dissemination of bituminous matter. The coal when extracted from the bed, is massive und most generally shows the woody structure distinctly." YOK mentioned... | |
 | E. Jerome Dyer - 1898 - 302 halaman
...consists of a series of beds, the thickest of which exceed three yards, separated by layers The coal when extracted from the bed is massive and most generally shows the woody structure distinctly." You mentioned that all along the Mackenzie — for 1,800 miles — there are indications of this lignite... | |
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... the formation is best exposed. It there consists of a series of beds, the thickest of which... 