Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"terrane accretion"”.
-
Long-term exhumation of landscapes along the Pacific-North American plate boundary as inferred from apatite (U-Th)/He and ArcGIS analyses
… plate motion, strong interplate coupling, and terrane accretion, but relating plate boundary orogenesis to variations in plate geometry and behavior requires detailed case studies. The northern San Gabriel Mountains along the San Andreas fault and the Chugach-Kenai Mountains above the Aleutian …
-
Structural studies in a Proterozoic gneiss complex and adjacent cover rocks, west Needle Mountains, Colorado
… part of the Colorado Province, one of several terranes that were possibly accreted to the Archean Wyoming Craton during the Proterozoic. Age constraints on the timing of deformation indicate that D<sub>B</sub> and D<sub>BC</sub> are representative of two regionally extensive deformational …
-
Crustal structure of rifted and convergent margins : the U.S. East Coast and Aleutian margins
… crust of most of Alaska has been built through terrane accretion and arc magmatism, and this experiment was conducted to study the evolution of continental crust through these processes. We consider transects across the westernmost Alaska Peninsula margin, where subduction is occurring beneath …
-
Bedrock and surficial geology of the southern half of the Montezuma 7.5' quadrangle, central Colorado Front Range, Colorado, USA
… (~1.65-1.60 Ga) orogenies, which both involved terrane accretion along the southeastern margin of Laurentia. Within the last two decades, evidence for a Mesoproterozoic orogeny, the ~1.48 -1.35 Ga orogeny has been recognized in northern New Mexico and Arizona, and more recently in Colorado. …
-
A Thermochronological Investigation of Orogenic Architecture, Kinematics, and Tectonic-Climatic Interactions within the St. Elias Orogen, Alaska
… forethrusts including the North American-Yakutat terrane suture (Chugach St. Elias fault) and the seaward deformation front (Pamplona zone). Accelerated denudation across the subaerial wedge thus appears to have forced the redistribution of strain along the backthrust and a series of forethrusts …