Oak Ridge Earthflow Observatory Data

Oak Ridge earthflow is a seasonally active earthflow located in the northern Diablo Range, 20 km northeast of San Jose, California. Positioned on the south-facing flank of Oak Ridge, it extends 1.35 km in the horizontal direction from ridge top to near the valley bottom, spans about 400 m of vertical relief, and has an average slope of 15°. The landslide body is composed of Franciscan mélange, an assemblage of variably deformed and metamorphosed rock units formed in a subduction zone during the Mesozoic and early Cenozoic eras.

橡树岭滑坡位于加利福尼亚州圣何塞东北方向20公里的迪亚布洛山脉北部，是一种季节性活跃的滑坡。该滑坡坐落于橡树岭南侧斜坡，水平方向从山脊顶部延伸至近山谷底部，长度达1.35公里，垂直高度约400米，平均坡度为15°。滑坡体主要由弗朗西斯坎混杂岩构成，这是一种在中生代和早新生代期间在俯冲带形成的、变形程度各异且发生变质作用的多岩类组合。