Physiographic Features of the Panamint Range, California
Physiographic Features of the Panamint Range, California
复制标题
加利福尼亚州帕纳明特山脉的地貌特征
DOI：
--
复制
发表时间：
1950
期刊：
影响因子：
--
通讯作者：
J. Maxson
中科院分区：
文献类型：
--
作者：
J. Maxson
加利福尼亚州的帕纳明特山脉体现了盆地山脉的许多典型地貌特征。该山脉的中心部分是一个位于断层前表面上的岛山，在干旱气候下形成，地势一般为低至中等地势。帕纳明特区块可能是由于上新世晚期和更新世早期在可变倾角断层上邻近盆地区块的断层而造成强烈的起伏。运动部分是走滑运动；帕纳明特谷地块相对于山地块向北和向下移动。此外，帕纳明特区块和邻近的凹陷死亡谷区块也向东旋转。扇残余物在帕纳明特谷陡坡上隆起，冲积扇在死亡谷根深蒂固。山脉西翼南部的溪流以V形剖面切入V字形山谷，其纵向剖面由于连续抬升或抬升加速而在山脉边缘及其附近形成凸面。
The Panamint Range, California, exemplifies many of the characteristic geomorphic features of basin ranges. The central part of the range was an inselberg on a pre-faulting surface of generally low to moderate relief developed in an arid climate. The Panamint block was brought into strong relief presumably by late Pliocene and early Pleistocene downfaulting of adjacent basin blocks on faults of variable dip. Movement was in part strike-slip; the Panamint Valley block moved northward and down with respect to the mountain block. In addition the Panamint block and adjacent depressed Death Valley block were rotated eastward. Fan remnants were uplifted on the Panamint Valley scarp, and alluvial fans were entrenched in Death Valley. Streams in the southern part of the west flank of the range cut valleys of V in V cross profile, and their longitudinal profiles developed convexities at and near the margin of the range because of successive uplifts or accelerations in uplift.