Adakites, high-Nb basalts and copper–gold deposits in magmatic arcs and collisional orogens: an overview
P Kepezhinskas, N Berdnikov, N Kepezhinskas… - Geosciences, 2022 - mdpi.com
Adakites are Y-and Yb-depleted, SiO2-and Sr-enriched rocks with elevated Sr/Y and La/Yb
ratios originally thought to represent partial melts of subducted metabasalt, based on their …
ratios originally thought to represent partial melts of subducted metabasalt, based on their …
Tectonic underplating and dismemberment of the Maclaren‐Kluane schist records Late Cretaceous terrane accretion polarity and~ 480 km of Post‐52 Ma dextral …
Terrane accretion introduces irregular geometry and allochthonous material to obliquely
convergent margins, which create opportunities to quantify strike‐slip displacement along …
convergent margins, which create opportunities to quantify strike‐slip displacement along …
[HTML][HTML] Large-scale, crustal-block vertical extrusion between the Hines Creek and Denali faults coeval with slip localization on the Denali fault since ca. 45 Ma, Hayes …
Oblique convergence along strike-slip faults can lead to both distributed and localized
deformation. How focused transpressive deformation is both localized and maintained along …
deformation. How focused transpressive deformation is both localized and maintained along …
Blowing in the late Cenozoic wind—detrital zircon river contributions to an interior Alaska loess deposit
Abstract The extensive Interior Alaska loess deposits record glacial advance and retreat
over the past 3 Myrs. Refining our understanding of the still-debated origins of this loess will …
over the past 3 Myrs. Refining our understanding of the still-debated origins of this loess will …
[HTML][HTML] Geochronology of the Wrangell Arc: Spatial-temporal evolution of slab-edge magmatism along a flat-slab, subduction-transform transition, Alaska-Yukon
JM Trop, JA Benowitz, CS Kirby… - …, 2022 - pubs.geoscienceworld.org
Abstract The Wrangell Arc in Alaska (USA) and adjacent volcanic fields in the Yukon provide
a long-term record of interrelations between flat-slab subduction of the Yakutat microplate …
a long-term record of interrelations between flat-slab subduction of the Yakutat microplate …
Oligocene-Neogene lithospheric-scale reactivation of Mesozoic terrane accretionary structures in the Alaska Range suture zone, southern Alaska, USA
Terrane accretion forms lithospheric-scale fault systems that commonly experience long and
complex slip histories. Unraveling the evolution of these suture zone fault systems yields …
complex slip histories. Unraveling the evolution of these suture zone fault systems yields …
Neogene sedimentary record of the evolution of a translated strike-slip basin along the Denali fault system: Implications for timing of displacement, composite basin …
Abstract Analysis of the late Miocene to Holocene McCallum sedimentary basin, located
along the south side of the eastern Denali fault system, provides a better understanding of …
along the south side of the eastern Denali fault system, provides a better understanding of …
Long distance plutonic relationships demonstrate 33 million years of strain partitioning along the Denali fault
We identify two piercing point pairs along a~ 500 km transect of the arcuate strike‐slip
Denali fault to document long‐term slip partitioning. Geochemical and isotopic similarity …
Denali fault to document long‐term slip partitioning. Geochemical and isotopic similarity …
Synthesis of the Seismic Structure of the Greater Alaska Region: Subducting Slab Geometry
We utilized a normalized vote method to define common features in teleseismic, body-wave
tomography models produced from the Alaska USArray data. The metric is used with three …
tomography models produced from the Alaska USArray data. The metric is used with three …
Geochemical and stratigraphic analysis of the Chisana Formation, Wrangellia terrane, eastern Alaska: Insights into Early Cretaceous magmatism and tectonics along …
Abstract The Chisana Formation consists of Lower Cretaceous volcanic rocks that occur in
the Nutzotin Mountains of eastern Alaska. New stratigraphic analysis indicates that the …
the Nutzotin Mountains of eastern Alaska. New stratigraphic analysis indicates that the …