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Weather Forecast for Monday, May 27, 2024

Today a weak shortwave crosses the Sierra Crest / Western Great Basin and brings just enough moisture to support isolated, high based convection over Mammoth and the Crest. Other than that, mostly uneventful weather for our Forecast Area this week. ....

Dennis Mattinson , Sierra Atmospheric , Swave Media , Forecast Discussion , Mon May , Sierra Crest , Western Great Basin , Forecast Area , Temperatures Today ,

Frontiers | Mid-Miocene to Present Upper-Plate Deformation of the Southern Cascadia Forearc: Effects of the Superposition of Subduction and Transform Tectonics

The southern Cascadia forearc undergoes a three-stage tectonic evolution, each stage involving different combinations of tectonic drivers, that produce differences in the upper-plate deformation style. These drivers include subduction, the northward migration of the Mendocino triple junction (MTJ) and associated thickening and thinning related to the Mendocino Crustal Conveyor (MCC) effect, and the NNW translation of the Sierra Nevada-Great Valley (SNGV) block. We combine geodetic data, plate reconstructions, seismic tomography and topographic observations to determine how the southern Cascadia upper plate is deforming in response to the combined effects of subduction and NNW-directed (MCC- and SNGV-related) tectonic processes. The location of the terrane boundaries between the relatively weak Franciscan complex and the stronger KMP and SNGV block has been a key control on the style of upper-plate deformation in the southern Cascadia forearc since the mid-Miocene. At ~15 Ma, present-da ....

United States , Siskiyou Mountains , New Zealand General , New Zealand , Trinidad And Tobago , United Kingdom , Sierra Nevada , San Andreas , South Island , Eaton Roughs , Sacramento Valley , San Francisco , Lake Mountain , Klamath Mountains , Bald Mountain , Baja California , San Francisco Bay , San Andreas Fault , Isla Santa Maria , Ma Atwater , Fuca Euler , Sierran Microplate , America Demets , Tectonostratigraphic Terranes , Yolla Bolly , Andreas Pacific North America ,