 ... Aplite dikes are supposed to have originated in the same deepseated molten mass as the granite they traverse, but they represent a later stage of igneous activity. The fissures they fill were the result of various tensional strains or contractions,...  The Granites of Maine - Seite 43von Thomas Nelson Dale - 1907 - 202 SeitenVollansicht - Über dieses Buch
 | 1907 - 1026 Seiten
...numerous. In color .these dikes vary from bluish gray to light and dark reddish. The texture of sonic aplites is so fine that the mineral particles can...range from 0.05 to 0.75 mm., the average being about O.Hi mm. for the finer ones and 0.50 mm. for the coarser ones. Some aplites have a porphyritic texture.... | |
 | Benjamin Kendall Emerson, Joseph Hartshorn Perry - 1907 - 700 Seiten
...dikes. N.-N. 10° E 3 N. 25° E 1 N. «0°-77° E 2 N. 10°-30° W •_ 4 N. 45° W 1 N. «0°-80° W . 5 Dikes that strike in the northwesterly-southeasterly...range from 0.05 to 0.75 mm., the average being about O.ld mm. for the finer ones and 0.50 mm. for the coarser ones. Some aplites have a porphyritic texture.... | |
 | Thomas Nelson Dale - 1908 - 458 Seiten
...of various tensional strains or contractions, possibly consequent upon the cooling of the granite. In color these dikes vary from bluish gray to light...coarser ones. Some aplites have a porphyritic texture. Most aplites contain a slightly higher percentage of silica than granite. Five analyses of aplites... | |
 | Geological Survey (U.S.) - 1908 - 270 Seiten
...of various tensional strains or contractions, possibly consequent upon the cooling of the gram'te. In color these dikes vary from bluish gray to light...coarser ones. Some aplites have a porphyritic texture. Most aplites contain a slightly higher percentage of silica than granite. Five analyses of aplites... | |
 | Thomas Nelson Dale - 1908 - 250 Seiten
...of various tensional strains or contractions, possibly consequent upon the cooling of the granite. In color these dikes vary from bluish gray to light...coarser ones. Some aplites have a porphyritic texture. Most aplites contain a slightly higher percentage of silica than granite. Five analyses of aplites... | |
 | Geological Survey (U.S.) - 1908 - 1020 Seiten
...light and dark reddish. The texture of some aplites is so fine that the mineral particles can not bo distinguished with the unaided eye ; that of others...of the particles range from 0.05 to 0.75 mm., the averago being about 0.16 mm. for the finer ones and 0.50 mm. for the coarser ones. Some aplites have... | |
 | Geological Survey (U.S.) - 1910 - 342 Seiten
...are rather numerous. In color they are reddish brown, and in texture are so dense and fine grained that the mineral particles can not be distinguished with the unaided eye. The largest dike, 4 feet wide, is exposed on opposite sides of the opening (about 50 feet wide) and... | |
 | George Samuel Rice - 1910 - 820 Seiten
...are rather numerous. In color they are reddish brown, and in texture are so dense and fine grained that the mineral particles can not be distinguished with the unaided eye. The largest dike, 4 feet wide, is exposed on opposite sides of the opening (about 50 feet wide) and... | |
 | Thomas Nelson Dale, Herbert Ernest Gregory - 1911 - 698 Seiten
...of various tensional strains or contractions, possibly consequent upon the cooling of the granite. In color these dikes vary from bluish gray to light...feldspar and mica may be thus detected. Under the 1 Woodworth, JB, On the frncture system of joints, with remarks on certain great fracturei : Proc.... | |
 | Geological Survey (U.S.) - 1911 - 162 Seiten
...of various tensional strains or contractions, possibly consequent upon the cooling of the granite. In color these dikes vary from bluish gray to light...feldspar and mica may be thus detected. Under the 1 Woodworth, JB, On fhe fraclure system of joints, with remarks on certain great fractures : Proc.... | |
| |
