Memoir - Geological Survey of Canada, Issues 39-40Geological Survey of Canada, 1913 - Geology |
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Common terms and phrases
Abitibi group Abitibi volcanics abundant alteration amphibolite aplite Archæan argillite arkose Bad Vermilion banded basalt batholith Bear Passage beds biotite carbonate chlorite chrome mica clay Cobalt series consist deformation deposits diabase district dolomite dykes ellipsoidal structure epidote evidence facies feldspar ferruginous dolomite foliation gabbro Geological Series glacial gneiss grained granite granite and gneiss granite-gneiss greenstone grey greywacke hornblende hornblende schist Huronian intrusive island Jour Keewatin Keewatin rocks Kinojevis river Lake Abitibi Lake Opasatika Larder lake Laurentian lithological localities magma mass MEMOIR mica microscope miles minerals Mines northern observed occur older complex Opasatika origin orthoclase pegmatite pillow lavas plagioclase Pontiac schist Pontiac series porphyry Pre-Cambrian probably pyrite quartz quartz and feldspar quartz porphyry quartz veins quartzite railway rhyolite Rice bay schistosity schists sedimentary sediments sericite Shoal lake shore slate stratified strike surface Surv syenite syncline texture Timiskaming region veinlets vicinity zoisite
Popular passages
Page 134 - MEMOIR 5. No. 4, Geological Series. Preliminary memoir on the Lewes and Nordenskiold Rivers coal district, Yukon Territory — by DD Cairnes. MEMOIR 6. No.
Page 133 - Since 1910, reports issued by the Geological Survey have been called memoirs and have been numbered Memoir 1, Memoir 2, etc. Owing to delays incidental to the publishing of reports and their accompanying maps, not all of the reports have been called memoirs, and the memoirs have not been issued in the order of their assigned numbers, and, therefore, the following list has been prepared to prevent any misconceptions arising on this account.
Page 134 - Report on a traverse through the southern part of the North West Territories, from Lac Seul to Cat lake, in 1902— by Alfred WG Wilson.
Page 135 - New species of shells collected by Mr. John Macoun at Barkley sound, Vancouver island, British Columbia — by William H.
Page 135 - Geological Series. Preliminary report on the clay and shale deposits of the western provinces.
Page 17 - Keewatin, which pass into a conglomerate known as the Shoal Lake conglomerate. This conglomerate lies upon an area of green schists and granites known as the Bad Vermilion granites. It holds numerous large well-rolled fragments of the underlying rocks, and forms the base of a sedimentary series. It is certain that in this line of section the Couchiching is stratigraphically higher than the chloritic schists and conglomerates mapped as Keewatin.
Page 52 - In a word, pahoehoe is formed by small off-shoots of very hot and highly liquid lava from the main stream driven out laterally or in advance of it in a succession of small belches. These spread out very thin, cool quickly, and attain a stable form before they are covered by succeeding belches of the same sort.
Page 17 - Ogishke conglomerates in the central parts of the district, especially in the vicinity of Snowbank Lake, but this locality was not visited by the party. In the Rainy Lake district the party observed the relations of the several formations along one line of section at the east end of Shoal Lake and at a number of other localities. The party is satisfied that along the line of section most closely studied the relations are clear and distinct. The Couchiching schists form the highest formation.
Page 113 - ... hundred feet, to mere veinlets, often only a fraction of an inch in width and a few feet in length, which ramify through a rock that has been subjected to small irregular flssuring.
Page 135 - No. 11, Geological Series. Insects from the Tertiary lake deposits of the southern interior of British Columbia, collected by Mr. Lawrence M. Lambe, in 1906 — by Anton Handlirsch.