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Description
Here is a piece of limestone that has been freshly quarried. You can see its edges and rough surface. That certainly would not stay like that if it was left out in the open for a few years. This is... obvious from the weathered state of many buildings in Britain that are built of limestone. So what in fact happens to limestone when it's exposed to the weather because after all this is part of the geological cycle you have been reading about this week? Now you might have found some of the ideas about isostacy in this week's Course Unit a little bit hard to grasp. Professor Gass is going to explain what is meant by isostacy again before taking the story further.
Here is a piece of limestone that has been freshly quarried. You can see its edges and rough surface. That certainly would not stay like that if it was left out in the open for a few years. This is... obvious from the weathered state of many buildings in Britain that are built of limestone. So what in fact happens to limestone when it's exposed to the weather because after all this is part of the geological cycle you have been reading about this week? Now you might have found some of the ideas about isostacy in this week's Course Unit a little bit hard to grasp. Professor Gass is going to explain what is meant by isostacy again before taking the story further.
| Module code and title: | S100, Science foundation course |
|---|---|
| Item code: | S100; 24 |
| Recording date: | 1971-02-01 |
| Recording location: | Alexandra Palace, London |
| First transmission date: | 1971-07-11 |
| Published: | 1971 |
| Rights Statement: | Rights owned or controlled by The Open University |
| Restrictions on use: | This material can be used in accordance with The Open University conditions of use. A link to the conditions can be found at the bottom of all OUDA web pages. |
| Duration: | 00:24:10 |
| + Show more... | |
| Director: | David Jackson |
| Producer: | Nat Taylor |
| Contributors: | Michael Pentz; Ian Gass; Chris Wilson; Steven Rose |
| Publisher: | Open University |
| Subject terms: | Limestone; Weathering; Geology; Isostasy; Lithosphere; Geodynamics; Earth (Planet)--Crust |
| Production number: | JOUZ379X |
| Videofinder number: | 2852 |
| Available to public: | no |
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