William F. Cannon
William (Bill) Cannon is a Scientist Emeritus with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.
Science and Products
Filter Total Items: 15
Filter Total Items: 105
Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of Northern Michigan. Geochemistry, petrography, and volcanology of rhyolites of the Portage Lake volcanics, Keweenaw Peninsula, Michigan
No abstract available.
Authors
William F. Cannon, Suzanne W. Nicholson
Metallogeny of the midcontinent rift system of North America
The 1.1 Ga Midcontinent rift system of North America is one of the world's major continental rifts and hosts a variety of mineral deposits. The rocks and mineral deposits of this 2000 km long rift are exposed only in the Lake Superior region. In the Lake Superior region, the rift cuts across Precambrian basement terranes ranging in age from ??? 1850 Ma to more than 3500 Ma. Where exposed, the rift
Authors
S. W. Nicholson, W. F. Cannon, K. J. Schulz
The Midcontinent rift in the Lake Superior region with emphasis on its geodynamic evolution
The Midcontinent rift is a Middle Proterozoic continental rift which records about 15 m.y. of extension, subsidence, and voluminous volcanism in the period 1109-1094 Ma in the central part of North America. During that time the crust was nearly totally separated and as much as 25 km of subaerial basalts accumulated in a deep central depression. Following extension and volcanism, a longer period of
Authors
W. F. Cannon
Speculations on the origin of the North American Midcontinent rift
The Midcontinent rift is an example of lithospheric extension and flood basalt volcanism induced when a new mantle plume arrived near the base of the lithosphere. Very large volumes of basaltic magma were generated and partly erupted before substantial lithospheric extension began. Volcanism continued, along with extension and deep rift subsidence, for the ensuing 15 m.y. Much of the basaltic magm
Authors
W. F. Cannon, W. J. Hinze
Deep crustal structure of the Precambrian basement beneath northern Lake Michigan, midcontinent North America
A deep seismic-reflection profile in northern Lake Michigan, midcontinent North America, provides a cross section of the crust across the 1850 Ma Penokean orogen, in which an Early Proterozoic island-arc complex was deformed between two converging Archean continental masses. The island-arc crust is about 40 km thick and has a few kilometres of intensely reflective rocks near its base, above which
Authors
W. F. Cannon, M. W. Lee, W. J. Hinze, K. J. Schulz, A.G. Green
Keweenaw hot spot: Geophysical evidence for a 1.1 Ga mantle plume beneath the Midcontinent Rift System
The Proterozoic Midcontinent Rift System of North America is remarkably similar to Phanerozoic rifted continental margins and flood basalt provinces. Like the younger analogues, the volcanism within this older rift can be explained by decompression melting and rapid extrusion of igneous material during lithospheric extension above a broad, asthenospheric, thermal anomaly which we call the Keweenaw
Authors
D. R. Hutchinson, R.S. White, W. F. Cannon, K. J. Schulz
The North American Midcontinent rift beneath Lake Superior from GLIMPCE seismic reflection profiling
The Midcontinent rift system is a 1.1-b.y.-old structure extending from Kansas, through the Lake Superior region, and into southern Michigan. The rift is filled with thick sequences of basaltic volcanic rocks and clastic sediments. For most of its extent it is buried beneath Paleozoic rocks but can be traced by its strong gravity and magnetic anomalies. Seismic reflection surveys by the Great Lake
Authors
W. F. Cannon
1986 GLIMPCE seismic reflection survey stacked data; Great Lakes region
No abstract available.
Authors
W. F. Agena, M. W. Lee, D. R. Hutchinson, John C. Behrendt, W. F. Cannon, A.G. Green
International Strategic Minerals Inventory summary report; manganese
Major world resources of manganese, a strategic mineral commodity, are described in this summary report of information in the International Strategic Minerals Inventory {ISMI). ISMI is a cooperative data-collection effort of earth-science and mineral-resource agencies in Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, and the United States of America. This report,
Authors
John H. DeYoung,, David M. Sutphin, William F. Cannon
Paleoclimate and mineral deposits
No abstract available.
Authors
Thomas M. Cronin, William F. Cannon, Richard Z. Poore
Michigan's iron ranges.
The three major iron areas of northern Michigan include the Marquette, Menominee, and Gogebic iron ranges. Of these, the Marquette range remains one of the major iron mining districts of the world. Considered are the history (dating from 1844), the geology, and the mineralogy of the ores (including taconite and jaspilite). -R.S.M.
Authors
W. F. Cannon
Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin
The Iron River 1? x 2? quadrangle contains identified resources of copper and iron. Copper-rich shale beds in the north part of the quadrangle contain 12.2 billion pounds (5.5 billion kilograms) of copper in well-studied deposits including 9.2 billion pounds (4.2 billion kilograms) that are economically minable by 1980 standards. At least several billion pounds of copper probably exist in other pa
Authors
William F. Cannon
Science and Products
Filter Total Items: 15
Filter Total Items: 105
Revisions of stratigraphic nomenclature within the Keweenawan Supergroup of Northern Michigan. Geochemistry, petrography, and volcanology of rhyolites of the Portage Lake volcanics, Keweenaw Peninsula, Michigan
No abstract available.
Authors
William F. Cannon, Suzanne W. Nicholson
Metallogeny of the midcontinent rift system of North America
The 1.1 Ga Midcontinent rift system of North America is one of the world's major continental rifts and hosts a variety of mineral deposits. The rocks and mineral deposits of this 2000 km long rift are exposed only in the Lake Superior region. In the Lake Superior region, the rift cuts across Precambrian basement terranes ranging in age from ??? 1850 Ma to more than 3500 Ma. Where exposed, the rift
Authors
S. W. Nicholson, W. F. Cannon, K. J. Schulz
The Midcontinent rift in the Lake Superior region with emphasis on its geodynamic evolution
The Midcontinent rift is a Middle Proterozoic continental rift which records about 15 m.y. of extension, subsidence, and voluminous volcanism in the period 1109-1094 Ma in the central part of North America. During that time the crust was nearly totally separated and as much as 25 km of subaerial basalts accumulated in a deep central depression. Following extension and volcanism, a longer period of
Authors
W. F. Cannon
Speculations on the origin of the North American Midcontinent rift
The Midcontinent rift is an example of lithospheric extension and flood basalt volcanism induced when a new mantle plume arrived near the base of the lithosphere. Very large volumes of basaltic magma were generated and partly erupted before substantial lithospheric extension began. Volcanism continued, along with extension and deep rift subsidence, for the ensuing 15 m.y. Much of the basaltic magm
Authors
W. F. Cannon, W. J. Hinze
Deep crustal structure of the Precambrian basement beneath northern Lake Michigan, midcontinent North America
A deep seismic-reflection profile in northern Lake Michigan, midcontinent North America, provides a cross section of the crust across the 1850 Ma Penokean orogen, in which an Early Proterozoic island-arc complex was deformed between two converging Archean continental masses. The island-arc crust is about 40 km thick and has a few kilometres of intensely reflective rocks near its base, above which
Authors
W. F. Cannon, M. W. Lee, W. J. Hinze, K. J. Schulz, A.G. Green
Keweenaw hot spot: Geophysical evidence for a 1.1 Ga mantle plume beneath the Midcontinent Rift System
The Proterozoic Midcontinent Rift System of North America is remarkably similar to Phanerozoic rifted continental margins and flood basalt provinces. Like the younger analogues, the volcanism within this older rift can be explained by decompression melting and rapid extrusion of igneous material during lithospheric extension above a broad, asthenospheric, thermal anomaly which we call the Keweenaw
Authors
D. R. Hutchinson, R.S. White, W. F. Cannon, K. J. Schulz
The North American Midcontinent rift beneath Lake Superior from GLIMPCE seismic reflection profiling
The Midcontinent rift system is a 1.1-b.y.-old structure extending from Kansas, through the Lake Superior region, and into southern Michigan. The rift is filled with thick sequences of basaltic volcanic rocks and clastic sediments. For most of its extent it is buried beneath Paleozoic rocks but can be traced by its strong gravity and magnetic anomalies. Seismic reflection surveys by the Great Lake
Authors
W. F. Cannon
1986 GLIMPCE seismic reflection survey stacked data; Great Lakes region
No abstract available.
Authors
W. F. Agena, M. W. Lee, D. R. Hutchinson, John C. Behrendt, W. F. Cannon, A.G. Green
International Strategic Minerals Inventory summary report; manganese
Major world resources of manganese, a strategic mineral commodity, are described in this summary report of information in the International Strategic Minerals Inventory {ISMI). ISMI is a cooperative data-collection effort of earth-science and mineral-resource agencies in Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, and the United States of America. This report,
Authors
John H. DeYoung,, David M. Sutphin, William F. Cannon
Paleoclimate and mineral deposits
No abstract available.
Authors
Thomas M. Cronin, William F. Cannon, Richard Z. Poore
Michigan's iron ranges.
The three major iron areas of northern Michigan include the Marquette, Menominee, and Gogebic iron ranges. Of these, the Marquette range remains one of the major iron mining districts of the world. Considered are the history (dating from 1844), the geology, and the mineralogy of the ores (including taconite and jaspilite). -R.S.M.
Authors
W. F. Cannon
Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin
The Iron River 1? x 2? quadrangle contains identified resources of copper and iron. Copper-rich shale beds in the north part of the quadrangle contain 12.2 billion pounds (5.5 billion kilograms) of copper in well-studied deposits including 9.2 billion pounds (4.2 billion kilograms) that are economically minable by 1980 standards. At least several billion pounds of copper probably exist in other pa
Authors
William F. Cannon