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世界地质公园网络中的山岳——斯瓦卞阿尔比世界地质公园阿尔山联合国教科文组织世界地质公园

来源:世界地质公园网络GGN 作者:世界地质公园网络GGN 时间:2018-3-19 15:48:02

 阿尔山联合国教科文组织世界地质公园位于中国内蒙古自治区兴安盟。作为被联合国教科文组织确认为中国具有国际重要地质遗迹地区的35个地质公园之一,她属于分布在35个国家的127个联合国教科文组织世界地质公园成员之一,是世界地质公园网络的机构成员。阿尔山位于大兴安岭中段西南部的中低山地区,海拔820〜1750米,平均1100米。阿尔山联合国教科文组织世界地质公园属温带大陆性季风气候,气候变化大。该区位于东天山—兴安褶皱带与华夏大地构造系大兴安岭巨隆起带交汇点。这是一个地形边界带和一个地壳过渡带。作为一个火山构造单元,它是大同—大兴安岭新生代火山带的一部分。阿尔山拥有丰富的地貌景观(火山,花岗岩山峰和河流)和水体景观(天然泉水,火山湖泊,风景河段)。独特的玄武岩熔岩逐渐冷却,在表面留下龟壳图案。阿尔山地区的龟背熔岩是中国唯一的大型、发育完好的龟背熔岩,也是世界上罕见的。阿尔山地质公园拥有35个露头极好的第四纪火山,是中国地质公园中密度最高的火山之一。火山和火山口湖东北走向,密布在阿尔山河谷两侧。

Arxan UNESCO Global Geopark is located in the jurisdiction of Xing’an League in China’s Autonomous Region of Inner Mongolia. 
As one of the 35 recognized by UNESCO areas with geoheritage of international importance in China, it belongs to the 127 UNESCO Global Geoparks laying in 35 countries. They are all institutional members of the Global Geoparks Network.
Arxan is a mid-low mountain region situated in the southwestern part of the middle section of the Daxing’anling range. The elevation ranges from 820 to 1,750 meters, with an average of 1,100 meters. The UNESCO Global Geopark has a cold, temperate, continental monsoon climate, and the temperature is prone to drastic changes.
The area is located at the point where the eastern Tianshan-Xing’an fold zone meets with the Daxing’anling giant uplift belt of the Cathaysian tectonic system. It is a topographic boundary zone and a crust transition zone. As a volcanic-tectonic unit, it is part of the Datong-Daxing’anling Cenozoic volcanic zone. The UNESCO Global Geopark has abundant geomorphological landforms (volcanoes, granite peaks and rivers) and water landscapes (natural springs, volcanogenic lakes, scenic river reaches). Unique are the basaltic lava deposits, which due to gradually cooling have left a turtle shell pattern at the surface. The turtleback lava in Arxan UNESCO Global Geopark is the only large-scale, well-developed and intact turtleback lava in China and it is also rare in the world.
With 35 well-exposed Quaternary volcanoes, Arxan UNESCO Global Geopark has one of the densest appearance of volcanoes in any Geopark in China. The volcanoes and crater lakes are trending northeast and are densely distributed on both sides of the Arxan river valley.