The Toreva-Block: A Distinctive Landslide Type

Abstract

An end member of the "rock-slide" group is described and named from an assigned type locality in the Hopi Indian Reservation of northeastern Arizona. A Toreva-block consists essentially of an unbroken tilted mass of stratified material which in numerous instances measures over 1,000 feet along the strike. Attempt is made to relate the slides to pediment remnants at the type locality. Distribution and character of Toreva-blpcks elsewhere in the Colorado Plateau Province are briefly discussed. Available data suggest the late Pleistocene formation of the larger slides.