51³Ô¹ÏÍø

Rocks that Originate Underground - part 18 of 38. Since igneous and metamorphic rocks are not produced by surface processes, the film suggests they must be formed within the earth's crust. Conditions are reconstructed by use of indirect evidence and the f - 4K stock video

1960s: borate crystals in crucible. Tongs pick up container. Powder on heating element. Melted crystals form black liquid. Liquid forms crystals as it cools. Speeded up footage of crystals forming
1960s: borate crystals in crucible. Tongs pick up container. Powder on heating element. Melted crystals form black liquid. Liquid forms crystals as it cools. Speeded up footage of crystals forming
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DETAILS

Credit:
Encyclopaedia Britannica Films
51³Ô¹ÏÍø #:
1439056696
License type:
Rights-ready
Collection:
Archive Films: 51³Ô¹ÏÍø
Max file size:
3840 x 2160 px - 3 GB
Clip length:
00:00:32:22
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Location:
United States
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Editorial use
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Not released
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QuickTime 10-bit ProRes 422 (HQ) 4K 3840x2160 24p
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