Frederic Wilson
Ric is a Research Geologist for the Alaska Science Center.
Science and Products
Filter Total Items: 26
Filter Total Items: 108
Later Paleozoic and Early Jurassic fossil ages from the McHugh Complex: A section in Geologic studies in Alaska by the U.S. Geological Survey during 1985 Circular 978 Later Paleozoic and Early Jurassic fossil ages from the McHugh Complex: A section in Geologic studies in Alaska by the U.S. Geological Survey during 1985 Circular 978
Late Mississippian through Early Pennsylvanian and Early Jurassic microfossils were collected from the type locality of the McHugh Complex (Clark, 1973) along the Seward Highway southeast of Anchorage (fig. 36). Radiolarians collected indicate that same of the oceanic rocks in the McHugh Complex are Early Jurassic in age. Conodonts extracted from a conglomerate clast are of Late...
Authors
Steven W. Nelson, Charles D. Blome, Anita G. Harris, Katherine M. Reed, Frederic H. Wilson
Map and tables showing potassium-argon age determinations and selected major-element chemical analyses from the Circle quadrangle, Alaska Map and tables showing potassium-argon age determinations and selected major-element chemical analyses from the Circle quadrangle, Alaska
No abstract available.
Authors
Gregory D. DuBois, Frederic H. Wilson, Nora B. Shew
Potassium-argon ages of volcanic rocks from near Ankara, Central Turkey Potassium-argon ages of volcanic rocks from near Ankara, Central Turkey
No abstract available.
Authors
Jay A. Ach, Frederic H. Wilson
The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula
The Meshik arc is herein defined to include Eocene to earliest Miocene volcanic and hypabyssal rocks and the associated Meshik and Stepovak Formations of the central Alaska Peninsula. Igneous rocks range from basalt to dacite and yielded K-Ar ages of 48 to 22 m.y. The Meshik arc is oriented along the trend of the Alaska Peninsula, subparallel to the present-day Aleutian arc. Rocks of the...
Authors
Frederic H. Wilson
The Alaska Peninsula terrane; a definition The Alaska Peninsula terrane; a definition
No abstract available.
Authors
Frederic H. Wilson, R. L. Detterman, J. E. Case
Eruption in an ice-filled caldera, Mount Veniaminof, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1983 Eruption in an ice-filled caldera, Mount Veniaminof, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1983
The more prominent of the two visible intracaldera cones of Mount Veniaminof went into eruption in early June 1983 and continued until early April 1984. Veniaminof is a 2,507-m-high composite cone having an 8 x 11-km summit caldera which formed 3,300-3,700 yr B.P. (Miller and Smith, 1977). The active 1.6x1.2-km cone protrudes 200 m through the glacial ice filling the caldera; it lies in...
Authors
M. Elizabeth Yount, Thomas P. Miller, Richard P. Emanuel, Frederic H. Wilson
Science and Products
Filter Total Items: 26
Filter Total Items: 108
Later Paleozoic and Early Jurassic fossil ages from the McHugh Complex: A section in Geologic studies in Alaska by the U.S. Geological Survey during 1985 Circular 978 Later Paleozoic and Early Jurassic fossil ages from the McHugh Complex: A section in Geologic studies in Alaska by the U.S. Geological Survey during 1985 Circular 978
Late Mississippian through Early Pennsylvanian and Early Jurassic microfossils were collected from the type locality of the McHugh Complex (Clark, 1973) along the Seward Highway southeast of Anchorage (fig. 36). Radiolarians collected indicate that same of the oceanic rocks in the McHugh Complex are Early Jurassic in age. Conodonts extracted from a conglomerate clast are of Late...
Authors
Steven W. Nelson, Charles D. Blome, Anita G. Harris, Katherine M. Reed, Frederic H. Wilson
Map and tables showing potassium-argon age determinations and selected major-element chemical analyses from the Circle quadrangle, Alaska Map and tables showing potassium-argon age determinations and selected major-element chemical analyses from the Circle quadrangle, Alaska
No abstract available.
Authors
Gregory D. DuBois, Frederic H. Wilson, Nora B. Shew
Potassium-argon ages of volcanic rocks from near Ankara, Central Turkey Potassium-argon ages of volcanic rocks from near Ankara, Central Turkey
No abstract available.
Authors
Jay A. Ach, Frederic H. Wilson
The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula
The Meshik arc is herein defined to include Eocene to earliest Miocene volcanic and hypabyssal rocks and the associated Meshik and Stepovak Formations of the central Alaska Peninsula. Igneous rocks range from basalt to dacite and yielded K-Ar ages of 48 to 22 m.y. The Meshik arc is oriented along the trend of the Alaska Peninsula, subparallel to the present-day Aleutian arc. Rocks of the...
Authors
Frederic H. Wilson
The Alaska Peninsula terrane; a definition The Alaska Peninsula terrane; a definition
No abstract available.
Authors
Frederic H. Wilson, R. L. Detterman, J. E. Case
Eruption in an ice-filled caldera, Mount Veniaminof, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1983 Eruption in an ice-filled caldera, Mount Veniaminof, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1983
The more prominent of the two visible intracaldera cones of Mount Veniaminof went into eruption in early June 1983 and continued until early April 1984. Veniaminof is a 2,507-m-high composite cone having an 8 x 11-km summit caldera which formed 3,300-3,700 yr B.P. (Miller and Smith, 1977). The active 1.6x1.2-km cone protrudes 200 m through the glacial ice filling the caldera; it lies in...
Authors
M. Elizabeth Yount, Thomas P. Miller, Richard P. Emanuel, Frederic H. Wilson