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首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >From subsurface to surface: a multidisciplinary approach to decoding uplift histories in tectonically-active karst landscapes
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From subsurface to surface: a multidisciplinary approach to decoding uplift histories in tectonically-active karst landscapes

机译：从地下到表面：一种多学科方法来解码构造岩溶岩溶景观中的提升历史

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摘要

We present an integrated study of subsurface and surficial karst landforms to unravel the uplift history of karst landscape in a tectonically-active area. To this end, we apply a multidisciplinary approach by combining cave geomorphology and Th/U dating of speleothems with remote sensing plus geophysical imaging of surface landforms. We use as an example Mt. Menikio in northern Greece where four caves share well-defined epiphreatic/shallow phreatic characteristics that are related to the distribution of surface and buried doline fields and provide evidence for three distinct water table stillstands (e.g. expressed as cave levels) now lying at 130 m, 800 m and 1600 m a.m.s.l. Our dating constraints delimit the age of the lower water table stillstand prior to 77 ka ago and imply a maximum rate of relative base level drop of 0.45 mma(-1), which is consistent with relative tectonic uplift rate estimates along currently active normal faults. We interpret the elevation of the higher water table stillstands to reflect earlier phases of uplift related to the regional tectonic events associated with the development of the North Anatolian Fault and the Northern Aegean area. Our analysis shows that the combined study of epiphreatic/shallow phreatic caves and surficial karst landforms together, is a robust way to investigate the uplift history of a karst landscape in a tectonically-active setting. (c) 2019 John Wiley & Sons, Ltd.
机译：我们展示了对地下和表面喀斯特地貌的综合研究，以解开岩溶景观的升高历史，在根本上有效地区。为此，我们通过将洞穴大学和Th / U组合在遥感和表面地貌的地球物理成像组合来应用多学科方法。我们用作北希腊北部Mt. Menikio，其中四个洞穴分享了与表面和埋地的Doline领域的分布相关的明确近似的骨骺/浅潜水性特征，并为三个不同的水位差距提供了证据（例如表达为洞穴水平）现在躺在130米，800米和1600米AMSL我们的约会限制在77 ka前之前将下水位台阶的年龄分隔，并意味着最大的相对基础级滴下降0.45 mma（-1），这与沿当前主动正常故障的相对构造隆起速率估计一致。我们解释了较高水位驻地的高度，以反映与与北安托利亚断层和爱琴海北部发展相关的区域构造事件相关的隆起阶段。我们的分析表明，骨骺/浅潜水洞穴和曲面岩溶地貌的组合研究在一起，是一种强大的方式，以便在构造 - 主动设置中调查喀斯特景观的隆起历史。 （c）2019 John Wiley＆Sons，Ltd。

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