 | Thomas Chrowder Chamberlin - Electronic journals - 1909 - 810 pages
...evidently of like origin. They represent siliceous, argillaceous, and dolomitic laminae in the original calcareous deposit. In many cases the bands of crystalline...become thinner and less abundant and the composite rock gradually passes over into a body of pure "feather amphibolite." This rock can, in certain parts of... | |
 | Geological Survey of Canada - Canada - 1913 - 632 pages
...regular in composition. 24 •8 a 2 1 I remarkable convergence of type, whereby rocks of widely different origin come to assume identity of character, explains...Whether the granular amphibolite, which is also found alternating with bands of limestone very frequently and over wide areas, is in some cases of similar... | |
 | Geology - 1913 - 362 pages
...appearance and composition. This a s remarkable convergence of type, whereby rocks of widely different origin come to assume identity of character, explains...Whether the granular amphibolite, which is also found alternating with bands of limestone very frequently and over wide areas, is in some cases of similar... | |
 | Alfred Ernest Barlow - Corundum - 1915 - 560 pages
...the metamorphism and recrystallization of sediments. To this class belong the feather amphibolites above described, which usually occur in thin bands...^crystalline limestone become thinner and less abundant, 54 and the composite rock passes gradually over into a body of pure feather-amphibolite. Whether the... | |
 | Corundum - 1915 - 736 pages
...the metamorphism and recrystallization of sediments. To this class belong the feather amphibolites above described, which usually occur in thin bands...like origin. They represent siliceous or dolomitic lamina; in the calcareous deposit. In many cases the bands of crystalline limestone become thinner... | |
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I remarkable convergence of type, whereby rocks of widely different origin come to assume identity of character, explains the difficulty which has been experienced up to the present time in arriving at a satisfactory conclusion concerning their genetic... 