مولین های زیبای آیسبرگ + تصاویر / باشگاه خبرنگاران

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مولین های زیبای آیسبرگ + تصاویر
به گزارش سرويس بين‌‌الملل باشگاه خبرنگاران،Just like rainwater dissolves the bedrock on the Earth’s crust and form sinkholes, meltwater on a glacier’s surface can melt ice and form sinkholes too. Sinkholes on glaciers are called moulins, French for "mill”. Moulins form when summer meltwater streams on the surface of the glacier finds a crevasse or other weak spot in the ice and begins to pour down through the ice. As the water moves downward, its turbulence and heat creates a narrow, tubular and vertical shaft, up to 10 meters wide, that