Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/0169-555X(94)00081-2 |
USE OF SOILS AND COLLUVIAL DEPOSITS IN ANALYZING TECTONIC EVENTS - THE SOUTHERN ARAVA RIFT, ISRAEL | |
AMIT, R; HARRISON, JBJ; ENZEL, Y![]() | |
通讯作者 | AMIT, R |
来源期刊 | GEOMORPHOLOGY
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ISSN | 0169-555X |
出版年 | 1995 |
卷号 | 12期号:2页码:91-107 |
英文摘要 | Buried soils in colluvium units developed on downthrown fault blocks have been presumed to form during periods of tectonic quiescence. This assumes however, that all colluvial units on a fault scarp are tectonically induced, particularly for a multiple-event fault scarp. To test this hypothesis we compared the colluvial stratigraphy and pattern of soil development on two non-tectonic scarps (terrace risers) and a nearby multiple-event fault scarp on the same alluvial fan surface. Both slopes developed under extremely arid climatic conditions. The colluvial stratigraphy and soil catenary relationship developed on terrace risers were found to be substantially different from those on the multiple-event fault scarp. The fault scarp colluvium contained several colluvial units separated by soils, whereas only two colluvial units without buried soils were found on the terrace risers. The colluvial units on the fault scarp were triangular in shape, while those on the terrace riser were concave and overlapped up the slope. Cumulic soils, indicating a continuous and low rate of deposition during pedogenesis, were formed along the terrace riser. In contrast, buried soils indicating episodic deposition occurred on the downthrown block of the multiple-event fault scarp. Accordingly, the colluvial stratigraphy developed on the fault scarp can be viewed as a record of distinct tectonic events with no climatically controlled deposition. The data indicate that soils and sedimentary stratigraphy can serve as useful indicators to distinguish terrace risers and single-event fault scarps from multiple-event fault scarps. These indicators can be helpful in distinguishing phases of tectonic activity and in evaluating recurrence intervals on a multiple-fault scarp. |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:A1995RA82500001 |
WOS关键词 | SCARP-DERIVED COLLUVIUM ; WASATCH FAULT ZONE ; UNITED-STATES ; CENTRAL IDAHO ; REG SOILS ; DESERT ; EARTHQUAKES ; EVOLUTION ; MAGNITUDE ; RUPTURE |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
来源机构 | Hebrew University of Jerusalem |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/131361 |
作者单位 | (1)NEW MEXICO INST MIN & TECHNOL,DEPT GEOSCI,SOCORRO,NM 87801 |
推荐引用方式 GB/T 7714 | AMIT, R,HARRISON, JBJ,ENZEL, Y. USE OF SOILS AND COLLUVIAL DEPOSITS IN ANALYZING TECTONIC EVENTS - THE SOUTHERN ARAVA RIFT, ISRAEL[J]. Hebrew University of Jerusalem,1995,12(2):91-107. |
APA | AMIT, R,HARRISON, JBJ,&ENZEL, Y.(1995).USE OF SOILS AND COLLUVIAL DEPOSITS IN ANALYZING TECTONIC EVENTS - THE SOUTHERN ARAVA RIFT, ISRAEL.GEOMORPHOLOGY,12(2),91-107. |
MLA | AMIT, R,et al."USE OF SOILS AND COLLUVIAL DEPOSITS IN ANALYZING TECTONIC EVENTS - THE SOUTHERN ARAVA RIFT, ISRAEL".GEOMORPHOLOGY 12.2(1995):91-107. |
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