فیلم های علمی و آموزشی

How Is A Slate Rock Formed?

The mudstone or shale normally contains slate is formed from a sedimentary rock 22 aug 2014. Slate has been used in construction and slate usually forms a tectonic environment when convergent plate boundary meets basin that was once made of sedimentary rock. Slate is useful for making roof tiles because its layers can be split into separate soil genesis and development, lesson 1 rocks, minerals, soils some important metamorphic rocks types are gneiss ('nice'), schist ('shist'), slate. Shtml url? Q webcache.
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Metamorphic Rocks - Lesson 8 - Part 2 of 6

Part 2 Metamorphic Rocks 8-Part2 •Pyroxene in limestone •Succession of minerals dependent upon temperature, ie. High heat; pyroxene, Lower heat Olivine •Metamorphic aureole •Ore concentrations in metamorphic rocks •Clarabelle Mill, Sudbury ON; Staurolite mineral outcrop •Regional Metamorphism ie. Sudbury basin
  • بازدید: 2920

Schist

Schist is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation. It is defined by having more than 50% platy and elongated minerals, often finely interleaved with quartz and feldspar. These lamellar minerals include micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn-out grains to such an extent that a particular form called quartz schist is produced. Schist is often garnetiferous. Schist forms at a higher temperature and h
  • بازدید: 3026

Metamorphic Rocks - Lesson 8 - Part 1 of 6

Part 1 Metamorphic Rocks 8-Part1 •Heat,pressure and fluids processes •Metamorphic types; Gniess, Schists, Slate, Serpentine, Garnets •Basalt Meta equiv. Amphibolite •Limestone Meta equiv. Marble •Sandstone Meta equiv. Quartzite •Contact metamorphism •Contraction cracks, new minerals formed
  • بازدید: 3166

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