Knowledge Resource Center for Ecological Environment in Arid Area
报告编号 | E75-10379, NASA-CR-141918, TR-75-1 |
来源ID | NTRS_Document_ID: 19750021448 |
Faults on Skylab imagery of the Salton Trough area, Southern California | |
Merifield, P. M. | |
英文摘要 | The author has identified the following significant results. Large segments of the major high angle faults in the Salton Trough area are readily identifiable in Skylab images. Along active faults, distinctive topographic features such as scarps and offset drainage, and vegetation differences due to ground water blockage in alluvium are visible. Other fault-controlled features along inactive as well as active faults visible in Skylab photography include straight mountain fronts, linear valleys, and lithologic differences producing contrasting tone, color or texture. A northwestern extension of a fault in the San Andreas set, is postulated by the regional alignment of possible fault-controlled features. The suspected fault is covered by Holocene deposits, principally windblown sand. A northwest trending tonal change in cultivated fields across Mexicali Valley is visible on Skylab photos. Surface evidence for faulting was not observed; however, the linear may be caused by differences in soil conditions along an extension of a segment of the San Jacinto fault zone. No evidence of faulting could be found along linears which appear as possible extensions of the Substation and Victory Pass faults, demonstrating that the interpretation of linears as faults in small scale photography must be corroborated by field investigations. |
英文关键词 | AGRICULTURE ALLUVIUM DRAINAGE PATTERNS EARTHQUAKES GEOLOGICAL FAULTS GROUND WATER MOUNTAINS SALTON SEA (CA) SANDS SOUTHERN CALIFORNIA TECTONICS VALLEYS VEGETATION COLOR EREP PHOTOINTERPRETATION SKYLAB PROGRAM TOPOGRAPHY |
出版年 | 1975 |
报告类型 | Technical Report |
语种 | 英语 |
国家 | 美国 |
URL | http://hdl.handle.net/2060/19750021448 |
资源类型 | 科技报告 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/258609 |
推荐引用方式 GB/T 7714 | Merifield, P. M.. Faults on Skylab imagery of the Salton Trough area, Southern California,1975. |
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