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Age estimation of tectonically exposed surfaces using cation-ratio dating of rock varnish
Catena ( IF 5.4 ) Pub Date : 2021-01-27 , DOI: 10.1016/j.catena.2021.105167
Dimitrios Ntokos

Cation-ratio dating (RCD) is a non-destructive and rapid means of dating rock varnish. This study explored that use of rock varnish RCD as a means of aging tectonically exposed surfaces in a semi-arid region of northwestern Greece with varying degrees of tectonic activity. Tectonic structures in the study region were identified and aged using conventional dating techniques, and faults were classified as active, potentially active, or inactive. A stringent field sampling methodology was adopted which successfully determined the concentrations of calcium, potassium, and titanium cations in rock varnish on the exposed surfaces of these faults. Results showed that RCD was a valuable tool for dating tectonic structures, and could be used to determine their activation age. The rapidly obtained results of this study could be used to expedite the identification of active and potentially active faults. Furthermore, these findings would contribute to neotectonic mapping efforts and other studies that relate to the tectonics of a specific area. The RCD method was less destructive and more accurate compared to alternative numerical dating methods and was a rapid means of identifying tectonically active faults. It has the potential to be employed in managing future disasters and mitigating serious economic repercussions from tectonic activity.



中文翻译:

使用岩石清漆的阳离子比率定年法估算构造暴露表面的年龄

阳离子比率定年法(R C D)是一种无损且快速的约会岩石清漆的手段。这项研究探索了使用岩石清漆R C D作为老化希腊西北部半干旱地区构造活动程度不同的构造裸露表面的方法。使用常规测年技术确定研究区的构造结构并进行时效处理,并将断层分为活动,潜在活动或不活动。采用了严格的现场采样方法,该方法成功地确定了这些断层裸露表面上的岩石清漆中钙,钾和钛阳离子的浓度。结果表明R C D是确定构造结构年代的重要工具,可用于确定其激活年龄。这项研究迅速获得的结果可用于加快对活动故障和潜在活动故障的识别。此外,这些发现将有助于新构造测绘工作和其他与特定区域构造有关的研究。所述ř Ç d方法是破坏性较小,并且与替代数值约会方法更准确的并且是识别构造活动故障的一种快速的方法。它有可能被用于管理未来的灾难并减轻构造活动的严重经济影响。

更新日期:2021-01-28
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