Compte-rendu de la XIIe Session, Canada, 1913, Band 12Imprimerie du gouvernement, 1914 - 1034 Seiten |
Inhalt
| 399 | |
| 538 | |
| 555 | |
| 733 | |
| 757 | |
| 772 | |
| 807 | |
| 835 | |
| 76 | |
| 77 | |
| 122 | |
| 131 | |
| 141 | |
| 153 | |
| 161 | |
| 169 | |
| 188 | |
| 252 | |
| 271 | |
| 310 | |
| 325 | |
| 338 | |
| 381 | |
| 842 | |
| 861 | |
| 869 | |
| 875 | |
| 885 | |
| 891 | |
| 901 | |
| 908 | |
| 925 | |
| 939 | |
| 947 | |
| 958 | |
| 987 | |
| 1002 | |
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
Allemagne America andesite Animikie Archæan basaltic basin batholithic beds Belgique calcite Cambrian Canada Comité conglomerate Congrès contain Cordillera correlation Coutchiching deposits depth diabase diastrophic differentiation district dolomite drift earthquakes east eastern erosion États-Unis d'Amérique été evidence excavation fait faunas feet formations fossils Gebiet Geol Geological Survey géologique Geologische geologists glacial glacier gneisses Gouvernement granite Huronian ice-sheet igneous Iles Britanniques Ingénieur inter-Glacial intrusive island Keewatin l'Université laccoliths Lago Lake Superior land Laurentian lavas limestone lower magma marine membres metres miles minerals Mines mountain occur Ontario Ordovician Ottawa Paleozoic period Phosphorit Pre-Cambrian present Président probably Professeur Professor of Geology province quartzite region rhyolite Richmond river rocks sand sandstone schists séance Secrétaire sedimentary sediments shale Silurian slope Société strata stratigraphic Sudbury sujet surface Teil thickness tion Toronto trace foliaire unconformity University upper valley veins volcanic western zone
Beliebte Passagen
Seite 96 - Surely there is a vein for the silver, And a place for gold where they fine it. Iron is taken out of the earth, And brass is molten out of the stone.
Seite 395 - The group on Lake Huron we have computed to be about 10,000 feet thick, and from its volume, its distinct lithological character, its clearly marked date posterior to the gneiss, and its economic importance as a copper-bearing formation, it appears to me to require a distinct appellation, and a separate color on the map. Indeed, the investigation of Canadian geology could not be conveniently carried on without it. We have, in consequence, given to the series the title of Huronian. A distinctive name...
Seite 419 - Pre-Cambrian sediments present the products of mature disintegration, while the earlier portions are usually characterized by partial or immature disintegration. The former are best typified by the great beds of quartzite, that imply the complete disintegration of large quantities of quartz-bearing rock and the subsequent assortment and reduction of its quartz particles. The shales and schists imply the same process, but in their metamorphosed condition • they are less easily and safely distinguished...
Seite 729 - ... of the ice age the transandine valleys must have been filled with an ice-barring outlet in that direction and the drainage of the eastern Cordillera must have followed the pre-glacial Pampean valleys to the Atlantic. On account of the slight slope of the transversal valleys the rivers have had but small erosive power and have therefore not been able to cut through the extensive glacial deposits and drain off the lakes, which were hollowed by powerful glacial erosion and are without doubt of great...
Seite 567 - I cannot resist the general inference that, in cases of superposition, in proportion as the species are more or less continuous, that is to say, as the break in life is partial or complete, first in the species, but more importantly in the loss of old and the appearance of new allied or unallied...
Seite 50 - December 28th, 1924, a meeting for the purpose of organizing a linguistic society was held in the American Museum of Natural History, 77th Street and Central Park West, New York City...
Seite 507 - Toward the south, west, and northwest, the Cordilleran outflow extended to the boundaries of our glaciated area; but eastward, pouring through passes of the Rocky Mountains, and in the Peace river region probably overtopping the highest summits, which there are only about 6,000 feet above the sea, the...
Seite 553 - the theory of secular oscillations of the continents is not competent to explain the repeated inundation and emergence of the land. The changes are much too extensive and too uniform to have been caused by movements of the earth's crust...
Seite 567 - ... causes that produced physical changes were much the same in former times as now, both in kind and intensity, (speaking generally, when spread over long epochs), then the upheaving, contorting and dislocation of the strata, and the vast denudations they underwent before resubmergence, generally represent a period of time longer than that occupied respectively by the deposition of the formation disturbed, or of that which overlies it unconformably.
Seite 816 - River runs from southeast to north-northwest, almost parallel to the east coast of Mindanao. . . . The entire bottom of the Agusan Valley consists of marine sediments containing an abundance of recent shells. Only at the mouths of the water courses which descend from the mountains, bounding it east and west, is found gravel containing well worn pebbles of andesite and other igneous rocks.