Summary Report of the Geological Survey Department ...1901 is accompanied by atlas of maps. |
Other editions - View all
Common terms and phrases
4-5 EDWARD VII angle anticline bands basin bed rock belt boulders brook Canada Canadian canyon claims clay coal colour conglomerate copper country rock crystalline deposits depth diabase diorite distance district Duncan creek dykes east eastern Elias range examined feet fold formation fossils galena Geological Survey glaciers gneiss gold granite gravels gray harbour hills hornblende Huronian inches intrusive iron island Jarvis river Kluane Kluane lake Kootenay Lardeau limestone lower mass Mayo lake miles mining mountain mouth Nicola north-west northward Nova Scotia occur Ontario Ottawa outcrop phyllites places portage portion probably province pyrite quartz quartz veins quartzite Quebec ridge road sandstone schists seam season seen SESSIONAL PAPER shaft shale shore side Silurian silver slates slope specimens Stewart river strata stream strike surface tetrahedrite thickness Torbrook township upper valley volcanic Winisk river Yukon
Popular passages
Page 5 - Governor General of Canada, MAY IT PLEASE YOUR EXCELLENCY, — The undersigned has the honour to lay before Your Excellency...
Page xix - ... members of the committee being present except CR Van Hise. At this meeting the report of the subcommittee was completed as given below. REPORT OF THE COMMITTEE Your special committee on the Lake Superior region, during the months of August and September, 1904, visited various districts in the Lake Superior country, their purpose being to ascertain, if possible, whether they could agree upon the succession and relations of the formations in the various districts, and could further agree upon a...
Page xxi - 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 Coutchiching is stratigraphically higher than the chloritic schists and conglomerates mapped as Keewatin.
Page xxiii - ... of greenstone and green schist. On several islands adjacent to the conglomerate the massive granite includes many fragments of greenstone and green schist, showing the granite to be intrusive into a greenstone formation. Thus in the complex against which the conglomerate rests we have a source both for the granite and greenstone pebbles and bowlders.
Page xviii - Round lake branch of the Blanche. PRE-CAMBRIAN NOMENCLATURE1 [Introductory note by CR Van Hise] The report below of the special committee on the nomenclature and correlation cf the geological formations of the United States and Canada is the first joint report of the geologists of the two countries.
Page xxiv - Superior region was sufficiently detailed to warrant an attempt at correlation of the individual formations of the various districts. There are, however, certain general points which seem to be reasonably clear, and about which there is no difference of opinion between us. These are as follows : There is an important structural break at the base of the Keweenawan. The term "Keweenawan...
Page 127 - Northeast arm iron range supposed. is shown as occurring in the slate or middle member of the Huronian. This is incorrect. On the contrary the iron range with accompanying green schists, slates, dolomites and schistose eruptives, and intruded by granites, belong to a series which had been intensely folded, metamorphosed and considerably eroded before the deposition of the overlying conglomerate hitherto described as the basal member of the Huronian system in this region. The larger fragments in the...
Page 83 - Pleistocene deposits and the economic resources, and upon physiographic and geologic features of the region examined. 7. On the coal basins in the Rocky Mountains, Sheep Creek and Cascade troughs northward to the Panther River.
Page xxi - Lake Huron described by Logan and Murray as Huronian. The ellipsoidal greenstone-agglomerate-slate series is cut in a most intricate way by granite and granitoid gneiss, which constitute much of Falcon Island at the southern part of the Lake of the Woods and a great area north of the Lake of the Woods. These relations between the granite and Keewatin were seen on the northwest part of Falcon Island and on a small island adjacent. They were also seen north of Rat Portage. At the latter place the rocks...
Page xx - These are (1) tuff, greenstone schist, and many kinds of greenstones which belong to the so-called green-schist series of the district, and (2) various kinds of granite and gneissoid granite. Adjacent to the state road south of the city of Marquette the actual contact was seen between the two series, the basal conglomerate resting upon the green schist.