جبل جليدي في القطب الجنوبي بحجم لندن
January 25, 2023 - نشأ جبل جليدي بحجم لندن قبالة القارة القطبية الجنوبية بعد حدوث تشققات امتدت عبر الجرف الجليدي برانت.
The crack known as Chasm-1 had until 2012 been dormant for about 35 years but over the last decade developed naturally as the ice shelf flowed towards the sea at a rate of about 2km per year.
It is not believed to be due to climate change, as atmospheric temperatures above the Brunt Ice Shelf are consistently sub-zero, and no warmer ocean water penetrates into the cavity under the shelf. The iceberg calved when Chasm-1 extended completely through the 150-metre thick ice shelf.