 | 1865 - 846 páginas
...than 200,000 square miles in • = I Canada, only about 1500 square miles have = yet been fully and connectedly examined in — any one district; and it is still impossible to I say whether the numerous exposures of Lau- ? rentian limestone met with in other parts of P the province... | |
 | Sir John William Dawson - 1875 - 278 páginas
...over more than 200,000 square miles in Canada, only about 1500 square miles have yet been fully and connectedly examined in any one district, and it is...zones, or whether they overlie or underlie them all." (B.) DR. STERRY HTTNT ON THE PROBABLE EXISTENCE OF LITE IN THE LAURENTIAN PERIOD. Dr. Hunt's views... | |
 | sir John William Dawson - 1875 - 290 páginas
...over more than 200,000 square miles in Canada, only about 1500 square miles have yet been fully and connectedly examined in any one district, and it is...zones, or whether they overlie or underlie them all." (B.) Da. STERRY HUNT ON THE PROBABLE EXISTENCE OF LIFE IN THE LAURENTIAN PERIOD. Dr. Hunt's views on... | |
 | Sir John William Dawson - 1875 - 278 páginas
...over more than 200,000 square miles in Canada, only about 1500 square miles have yet been fully and connectedly examined in any one district, and it is...zones, or whether they overlie or underlie them all." (B.) DR. STERRY HUNT ON THE PROBABLE EXISTENCE OF LIPE IN THE LATOENTIAN PERIOD. Dr. Hunt's views on... | |
 | 1892 - 618 páginas
...over more than 200,000 square miles in Canada, only about 1,500 square miles have yet been fully and connectedly examined in any one district, and it is...impossible to say whether the numerous exposures of Laureutian limestone met with in other parts of the province are equivalent to any of the three zones,... | |
 | Charles Richard Van Hise - 1892 - 602 páginas
...over more than 200,000 square miles in Canada, only about 1,500 square miles have yet been fully and connectedly examined in any one district, and it is...limestone met with in other parts of the province are eqnivalent to any of the three zones, or whether they overlie or underlie them all. As evidence of... | |
 | Charles Richard Van Hise, Charles Kenneth Leith - 1909 - 956 páginas
...over more than 200.000 square miles in Canada, only about 1,500 square miles have yet been fully and connectedly examined in any one district, and it is...zones, or whether they overlie or underlie them all. As evidence of life in the Laurentian limestone are graphite, great beds of iron ore, and recognizable... | |
 | Geological Survey (U.S.) - 1909 - 1014 páginas
...over more than 200,000 square miles in Canada, only about 1,500 square miles have yet been fully and connectedly examined in any one district, and it is...zones, or whether they overlie or underlie them all. As evidence of life in the Laurentian limestone arc graphite, great beds of iron ore, and recognizable... | |
 | 1865 - 846 páginas
...more than 200,000 square miles in •' Canada, only about 1500 square miles have yet been fully and connectedly examined in any one district ; and it...whether they overlie or underlie them all." „ In this connection are given the two following sections, which serve to show the structure of the Lower... | |
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But as we do not as yet know with certainty either the base or the summit of this series, these three may be conformably followed by many more. Although the Lower and Upper Laurentian rocks spread over more than 200,000 square miles in Canada, only about... 