Zobrazeno 1 - 10
of 19
pro vyhledávání: '"W. F. Cannon"'
Publikováno v:
Geological Society of America Bulletin. 122:50-75
A layer of breccia that contains fragments of impact ejecta has been found at 10 sites in the Paleoproterozoic iron ranges of northern Michigan, in the Lake Superior region of the United States. Radiometric age constraints from events predating and p
Autor:
Allan Kolker, W. F. Cannon, Sheridan K. Haack, Myoung-Jin Kim, L. G. Woodruff, D. B. Westjohn, Jerome O. Nriagu
Publikováno v:
Arsenic in Ground Water ISBN: 1402073178
Arsenic levels exceeding 10 μg/L are present in hundreds of private supply wells distributed over ten counties in eastern and southeastern Michigan. Most of these wells are completed in the Mississippian Marshall Sandstone, the principal bedrock aqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11c1c993ea4eab5a96ce1b5911829d2b
https://doi.org/10.1007/0-306-47956-7_10
https://doi.org/10.1007/0-306-47956-7_10
Autor:
W. F. Cannon
Publikováno v:
Basement Tectonics 10 ISBN: 9789048145348
The Great Lakes International Multidisciplinary Program on Crustal Evolution (GLIMPCE) was jointly sponsored by the U.S. Geological Survey and the Geological Survey of Canada, and engaged participants from a broad spectrum of government and academic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4f62d77282d9d30ee037699696b4b39
https://doi.org/10.1007/978-94-017-0831-9_2
https://doi.org/10.1007/978-94-017-0831-9_2
Autor:
W. F. Cannon
Publikováno v:
Economic Geology. 71:1012-1028
Hard iron ore on the Marquette Range consists of nearly pure masses of specularite, magnetite, or martite and occurs near the unconformable contact of the Negaunee Iron-Formation with the overlying Goodrich Quartzite. Most ore is in an upper jaspilit
Autor:
W. F. Cannon
Publikováno v:
Isis. 67:139-141
Publikováno v:
Open-File Report.