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首页> 外文期刊>Revue Roumaine de Geographie >THE CARPATHIAN RIVER SYSTEM IN ROMANIA – GENESIS AND EVOLUTION
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THE CARPATHIAN RIVER SYSTEM IN ROMANIA – GENESIS AND EVOLUTION

机译：罗马尼亚的喀尔巴阡河流域系统-起源和演化

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The present Carpathian valley network is the result of a long and complex process synchronous to the evolution of the Carpathian orographic system during the Cretaceous – Quaternary period. Among other issues, this study focuses on the genesis of the great defiles shaped by the rivers that cut across (partially or totally) the mountains (the Danube, Olt, Jiu, Prahova, Cri?ul Repede, Bistri?a, Trotu?, Buz?u, Mure?, Some?, etc.), also explaining lower- order valleys, of limited length (the Bistricioara, Ilva, Tazl?u, Teleajen, Cuejd, Strei, etc.). The specialist literature contains a diversity of opinions on two evolutionary concepts – antecedence and stream piracy, but the conclusions have not always been accepted. In establishing the formation stages of different generations of Carpathian valley systems, some general conditions have been taken into consideration (formation of the mountain system by tectonic movements; the evolution of marginal base levels, significantly influencing the intensity of linear and headward erosion; the orographic structure – a relatively ring-like mountain system built of groups of massifs and tectonic basins; the evolution of morpho-climatic systems). At the same time, some regional conditions (partial or total transversal corridors, erosion levels and terraces along the valleys, piedmont glacis, etc.) have been taken into account. The analysis of these elements allowed us to highlight two main evolution stages: Miocene – Middle Pontian (preserving the traces of the oldest valleys) and Dacian – Holocene (when many different generations of valleys were formed, preserving the most numerous morphological evidence), revealing the formation by antecedence and superposition of defiles and gorges, of the four generations of the valley system, and their varied local structure determined by tectonics, volcanism, geological patterns and changing role of the base levels.
机译：当前的喀尔巴阡山谷网络是白垩纪至第四纪期间漫长而复杂的过程与喀尔巴阡地形系统演变同步的结果。除其他问题外，本研究的重点是河流横穿（部分或全部）山脉（多瑙河，奥尔特河，九条河，普拉霍瓦河，克里尔·勒佩德，比斯特里阿，特罗图？ Buz？u，Mure？，Some？等），也解释了长度有限的低阶山谷（Bistricioara，Ilva，Tazl？u，Teleajen，Cuejd，Strei等）。专业文献对“先行”和“盗版”这两个进化概念有多种见解，但结论并不总是被人们接受。在建立不同世代喀尔巴阡山谷系统的形成阶段时，已考虑了一些一般条件（通过构造运动形成山地系统;边际基础水平的演变，显着影响线性侵蚀和向前方侵蚀的强度;地形结构–由地块和构造盆地组成的相对环状的山地系统;形态气候系统的演化）。同时，还考虑了一些区域条件（部分或全部横向走廊，沿河谷的侵蚀程度和阶地，山前冰川等）。通过对这些元素的分析，我们可以强调两个主要的演化阶段：中新世－中笨珍（保留最古老山谷的痕迹）和大统－全新世（形成许多不同世代的山谷，保留了最多的形态学证据），揭示了第四代山谷系统的前期和陷和峡谷的叠合形成，以及由构造，火山作用，地质模式和基层作用的变化所决定的多样的局部结构。

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