Neogene clockwise tectonic rotation of the eastern Transverse Ranges, California, suggested by paleomagnetic vectors

Quantifying Dextral Shear on the Bristol-Granite Mountains Fault Zone: Successful Geologic Prediction from Kinematic Compatibility of the Eastern California Shear Zone

“…Dextral shear in the Mojave portion of the ECSZ should be kinematically linked to tectonism in surrounding regions, which includes rotation of the eastern transverse ranges from 10 to 4 Ma (Carter et al 1987;Richard 1993), extension and shear north of the Garlock fault between 11 and 3 Ma (Snow and Lux 1999;Snow and Wernicke 2000;Niemi et al 2001), and the northwesterly motion of the Sierra Nevada-Great Valley block (Wernicke and Snow 1998;McQuarrie and Wernicke 2005). The left-lateral Garlock fault acts as a continental transform by separating large magnitudes of oblique extension in the north from dextral shear and contraction in the ECSZ to the south (Davis and Burchfiel 1973;Bartley et al 1990).…”

Pennsylvanian to Jurassic eolian transportation systems in the western United States

“…This may be the result of extreme local variation in wind patterns due to the influence of topography where the erg lapped onto topographic highs of the magmatic arc. However, it seems more likely to have been the product of extreme tectonic rotation of the Cowhole Mountains crustal block about a vertical axis due to movement on nearby strike-slip faults (Marzolf, 1983b), as is known to have occurred later in the same general area (Carter et al, 1987). Paleomagnetic as well as sedimentologic studies of transportation directions in other strata could also provide clues to the true structural orientation of the Cowhole Mountains.…”

Paleotectonics of a complex Miocene half graben formed above a detachment fault: The Diligencia basin, Orocopia Mountains, southern California

“…1 and 2). Clockwise vertical-axis rotation of ~41° affected several blocks of the eastern Transverse Ranges between 10 and 4.5 Ma, with the Diligencia basin being rotated ~110° and rotations of individual blocks of up to 180° near the Clemens Well fault (Carter et al, 1987;Richard, 1993;Dickinson, 1996;Law et al, 2001). The increase in magnitude of vertical-axis rotation of basalt within the Diligencia Formation from ~110° to 180° is best explained by having most of the regional rotation take place prior to local shortening by faulting and folding, which locally increased clockwise rotation (Terres, 1984;Law et al, 2001).…”