Mountains one hundred and one is a 12-lesson Huge Open On-line Course (MOOC) instructing a complete overview of mountains and their environmental and human impact. As an example, the Himalayas have been thrust onto the crust of the Indian defend, which is underlain by significantly chilly, thick lithosphere that has been flexed down by the weight of the high vary. As the uplift was occurring some 10,000 toes (3,000 m) of principally Mesozoic sedimentary strata were removed by erosion over the core of the mountain vary and spread as sand and clays across the Nice Plains to the east.
Mountains are usually less preferable for human habitation than lowlands, because of harsh climate and little degree ground appropriate for agriculture Whereas 7{6caf74f782b94707a474d7a12f36f30151b0050cdd210ee8cf66fc62ba574715} of the land space of Earth is above 2,500 metres (8,200 ft), thirteen only one hundred forty million people reside above that altitude 33 and solely 20-30 million individuals above three,000 metres (9,800 ft) elevation.
Equally whereas oceanic lithosphere was underthrust beneath the west coast of Canada in the course of the Mesozoic Period (248,000,000-65,000,000 years in the past), the Canadian protect was underthrust greater than 200 kilometres beneath the Canadian Rocky Mountains, with crustal shortening occurring by …
