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Structure and petrography of the Middle Feather River ultramafic body, Plumas County, California
The ultramafic body on the Middle Fork of the Feather River is a typical Alpine-type peridotite. It has fabrics and mineral assemblages indicating formation in the upper mantle. It is surrounded by Paleozoic(?) metasedimentary ...
Structure and petrology of the Pacific Ridge area, Colusa and Lake Counties, California
The Pacific Ridge area, located in the northeastern Franciscan terrain, consists of a broad anticlinorium plunging southeast. The core of the anticlinorium is composed of glaucophane lawsonite schists and related rocks of ...
Experimental modeling of the microscopic and mesoscopic structures of upper mantle diapirs
Samples of Mt. Addie dunite have been deformed in a rotational system where the principal stresses were not parallel to the final principal strains. Three types of experiments were performed: 1) extrusion tests (dunite was ...