Susan Karl (Former Employee)
Science and Products
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Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska
The geologic map of the Duncan Canal-Zarembo Island area is the result of a multidisciplinary investigation of an area where an airborne geophysical survey was flown in the spring of 1997. The area was chosen for the geophysical survey because of its high mineral potential, a conclusion of the Petersburg Mineral Resource Assessment Project, conducted by the U.S. Geological Survey from...
Authors
Susan M. Karl, Peter J. Haeussler, Anne E. McCafferty
Geologic map of the Seldovia quadrangle, south-central Alaska Geologic map of the Seldovia quadrangle, south-central Alaska
This is a 1:250,000-scale map of the bedrock geology of the Seldovia quadrangle, south-central Alaska. The map area covers the southwestern end of the Kenai Peninsula, including the Kenai Lowlands and Kenai Mountains, on either side of Kachemak Bay. The waters of Cook Inlet cover roughly half of the map area, and a part of the Alaska Peninsula near Iliamna Volcano lies in the extreme...
Authors
Dwight Bradley, Timothy M. Kusky, Peter J. Haeussler, Susan M. Karl, D. Thomas Donley
Late Cretaceous to early Tertiary transtension and strain partitioning in the Chugach Accretionary Complex, SE Alaska Late Cretaceous to early Tertiary transtension and strain partitioning in the Chugach Accretionary Complex, SE Alaska
Shear zones in the Late Cretaceous Sitka Graywacke of the Chugach accretionary complex in southeast Alaska record constrictional finite strains, with maximum principal s tretches plunging shallowly subparallel to strike of the shear zones. Macrostructural analysis indicates the finite strain formed during one deformation event. Microstructural analysis of the shear zones shows that this
Authors
J.S. Davis, Sarah M. Roeske, Susan M. Karl
Field guide to the Mesozoic accretionary complex along Turnagain Arm and Kachemak Bay, south-central Alaska Field guide to the Mesozoic accretionary complex along Turnagain Arm and Kachemak Bay, south-central Alaska
Turnagain Arm, just east of Anchorage, provides a readily accessible, world-class cross section through a Mesozoic accretionary wedge. Nearly continuous exposures along the Seward Highway, the Alaska Railroad, and the shoreline of Turnagain Arm display the two main constituent units of the Chugach terrane: the McHugh Complex and Valdez Group. In this paper we describe seven bedrock...
Authors
Dwight Bradley, Timothy M. Kusky, Susan M. Karl, Peter J. Haeussler
Controls on accretion of flysch and melange belts at convergent margins: Evidence from the Chugach Bay thrust and Iceworm melange, Chugach accretionary wedge, Alaska Controls on accretion of flysch and melange belts at convergent margins: Evidence from the Chugach Bay thrust and Iceworm melange, Chugach accretionary wedge, Alaska
Controls on accretion of flysch and mélange terranes at convergent margins are poorly understood. Southern Alaska's Chugach terrane forms the outboard accretionary margin of the Wrangellia composite terrane, and consists of two major lithotectonic units, including Triassic-Cretaceous mélange of the McHugh Complex and Late Cretaceous flysch of the Valdez Group. The contact between the...
Authors
Timothy M. Kusky, Dwight Bradley, Peter J. Haeussler, Susan M. Karl
Geology of northern Alaska Geology of northern Alaska
No abstract available.
Authors
Thomas E. Moore, Wes K. Wallace, Kenneth J. Bird, Susan M. Karl, Charles G. Mull, John T. Dillon
Science and Products
Filter Total Items: 22
No results found.
Filter Total Items: 64
Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska
The geologic map of the Duncan Canal-Zarembo Island area is the result of a multidisciplinary investigation of an area where an airborne geophysical survey was flown in the spring of 1997. The area was chosen for the geophysical survey because of its high mineral potential, a conclusion of the Petersburg Mineral Resource Assessment Project, conducted by the U.S. Geological Survey from...
Authors
Susan M. Karl, Peter J. Haeussler, Anne E. McCafferty
Geologic map of the Seldovia quadrangle, south-central Alaska Geologic map of the Seldovia quadrangle, south-central Alaska
This is a 1:250,000-scale map of the bedrock geology of the Seldovia quadrangle, south-central Alaska. The map area covers the southwestern end of the Kenai Peninsula, including the Kenai Lowlands and Kenai Mountains, on either side of Kachemak Bay. The waters of Cook Inlet cover roughly half of the map area, and a part of the Alaska Peninsula near Iliamna Volcano lies in the extreme...
Authors
Dwight Bradley, Timothy M. Kusky, Peter J. Haeussler, Susan M. Karl, D. Thomas Donley
Late Cretaceous to early Tertiary transtension and strain partitioning in the Chugach Accretionary Complex, SE Alaska Late Cretaceous to early Tertiary transtension and strain partitioning in the Chugach Accretionary Complex, SE Alaska
Shear zones in the Late Cretaceous Sitka Graywacke of the Chugach accretionary complex in southeast Alaska record constrictional finite strains, with maximum principal s tretches plunging shallowly subparallel to strike of the shear zones. Macrostructural analysis indicates the finite strain formed during one deformation event. Microstructural analysis of the shear zones shows that this
Authors
J.S. Davis, Sarah M. Roeske, Susan M. Karl
Field guide to the Mesozoic accretionary complex along Turnagain Arm and Kachemak Bay, south-central Alaska Field guide to the Mesozoic accretionary complex along Turnagain Arm and Kachemak Bay, south-central Alaska
Turnagain Arm, just east of Anchorage, provides a readily accessible, world-class cross section through a Mesozoic accretionary wedge. Nearly continuous exposures along the Seward Highway, the Alaska Railroad, and the shoreline of Turnagain Arm display the two main constituent units of the Chugach terrane: the McHugh Complex and Valdez Group. In this paper we describe seven bedrock...
Authors
Dwight Bradley, Timothy M. Kusky, Susan M. Karl, Peter J. Haeussler
Controls on accretion of flysch and melange belts at convergent margins: Evidence from the Chugach Bay thrust and Iceworm melange, Chugach accretionary wedge, Alaska Controls on accretion of flysch and melange belts at convergent margins: Evidence from the Chugach Bay thrust and Iceworm melange, Chugach accretionary wedge, Alaska
Controls on accretion of flysch and mélange terranes at convergent margins are poorly understood. Southern Alaska's Chugach terrane forms the outboard accretionary margin of the Wrangellia composite terrane, and consists of two major lithotectonic units, including Triassic-Cretaceous mélange of the McHugh Complex and Late Cretaceous flysch of the Valdez Group. The contact between the...
Authors
Timothy M. Kusky, Dwight Bradley, Peter J. Haeussler, Susan M. Karl
Geology of northern Alaska Geology of northern Alaska
No abstract available.
Authors
Thomas E. Moore, Wes K. Wallace, Kenneth J. Bird, Susan M. Karl, Charles G. Mull, John T. Dillon
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