Available online
Description
'This programme presents for two geological processes which build mountains: magmatism at continental margins and crustal thickening following continental collision. It also shows what happens when..., as in the case of the Himalayas, mountain building occurs quickly, and shows the consequences of earthquake activity associated with such a rapid uplift. The geotraverse starts with the Karakorum batholith and continues with the Kohistan island arc. pillow lavas, magma chamber cumulates and crystalline basement are demonstrated in outcrop. The relationship of all these features is clearly shown with animated graphics, or are the priciple characteristics of thrust tectonics. In outcrop, folding, stretching lineation, shear belts, augengneiss and thrust belt ranges in the foreland basin, are all observed and discussed. The fianl part of the programme is about neotectonics. A disastrous flash flood in 1842 is shown to have been the result of movement on a thrust belt. This locates the fault zone which brought metamorphosed crust of the Indian continent onto recent fluvioglacial sediments - one of the consequences of the rapid uplift of the Nanga parbat massif within the last 10 million years.'
'This programme presents for two geological processes which build mountains: magmatism at continental margins and crustal thickening following continental collision. It also shows what happens when..., as in the case of the Himalayas, mountain building occurs quickly, and shows the consequences of earthquake activity associated with such a rapid uplift. The geotraverse starts with the Karakorum batholith and continues with the Kohistan island arc. pillow lavas, magma chamber cumulates and crystalline basement are demonstrated in outcrop. The relationship of all these features is clearly shown with animated graphics, or are the priciple characteristics of thrust tectonics. In outcrop, folding, stretching lineation, shear belts, augengneiss and thrust belt ranges in the foreland basin, are all observed and discussed. The fianl part of the programme is about neotectonics. A disastrous flash flood in 1842 is shown to have been the result of movement on a thrust belt. This locates the fault zone which brought metamorphosed crust of the Indian continent onto recent fluvioglacial sediments - one of the consequences of the rapid uplift of the Nanga parbat massif within the last 10 million years.'
| Module code and title: | S339, Understanding the continents |
|---|---|
| Item code: | S339; 16 |
| Published: | 1989 |
| Rights Statement: | |
| Restrictions on use: | |
| Duration: | 00:24:42 |
| + Show more... | |
| Producer: | David Jackson |
| Contributors: | Rob Butler; Nigel Harris |
| Publisher: | BBC Open University |
| Keyword(s): | Chinese border; Earthquakes; Island arc; Karakorum highway; Magma chamber; Nanga Parbat; Neotectonics |
| Subject terms: | Geology, structural--Himalaya mountains region; Mountains; Orogeny--Himalaya mountains region; Plate tectonics; Himalaya mountains region |
| Master spool number: | HOU6347 |
| Production number: | FOUS582A |
| Videofinder number: | 2815 |
| Available to public: | no |
