Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.quageo.2012.03.013 |
Assessing the potential of luminescence dating for fault slip rate studies on the Garlock fault, Mojave Desert, California, USA | |
Roder, Belinda1; Lawson, Mike1; Rhodes, Edward J.1; Dolan, James2; McAuliffe, Lee2; McGill, Sally3 | |
通讯作者 | Rhodes, Edward J. |
会议名称 | 13th International Conference on Luminescence and Electron Spin Resonance Dating (LED) |
会议日期 | JUL 10-14, 2011 |
会议地点 | Torun, POLAND |
英文摘要 | Although there has been significant advancement of OSL (optically stimulated luminescence) dating of quartz and feldspar over the past decade, the luminescence characteristics of quartz grains in many tectonically active areas are not suitable for accurate age determinations using this technique. This study investigates the reasons for this unsuitability and tests a new measurement protocol (ITL), which appears more promising. At two sites along the central Garlock fault in the Mojave Desert, California, USA, samples collected for OSL dating for this study have proven problematic. At the El Paso Peaks (EPP) trench site, a sequence of OSL samples was collected from sandy units with a well-established radiocarbon chronology, providing the opportunity to assess different approaches and optimize our luminescence dating procedures. At Christmas Canyon West (CCW), where future Garlock fault slip rate studies will be conducted using luminescence dating, samples were collected to assess the luminescence characteristics of both quartz and feldspar in this environment. At both sites, signals from quartz and K-feldspar grains are consistently dim. At EPP, quartz results provide age underestimates, while K-feldspar IRSL yields erratic values; the causes of this problematic behavior are unclear. Preliminary minimum isothermal thermoluminescence (ITL) signals of K-feldspar measured during preheating appear to be consistent with the radiocarbon age estimates, demonstrating potential for accurate age determination in this kind of environment using this protocol. (C) 2012 Published by Elsevier B.V. |
英文关键词 | OSL IRSL Isothermal TL Fault slip rates Paleoseismic trench |
来源出版物 | QUATERNARY GEOCHRONOLOGY |
ISSN | 1871-1014 |
出版年 | 2012 |
卷号 | 10 |
页码 | 285-290 |
出版者 | ELSEVIER SCI LTD |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000307195300044 |
WOS关键词 | REGENERATIVE-DOSE PROTOCOL ; EL-PASO PEAKS ; QUARTZ |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/300189 |
作者单位 | 1.Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA; 2.Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA; 3.Calif State Univ San Bernardino, Dept Geol Sci, San Bernardino, CA 92407 USA |
推荐引用方式 GB/T 7714 | Roder, Belinda,Lawson, Mike,Rhodes, Edward J.,et al. Assessing the potential of luminescence dating for fault slip rate studies on the Garlock fault, Mojave Desert, California, USA[C]:ELSEVIER SCI LTD,2012:285-290. |
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