All forms of asbestos occur as long fibers. Chrysotile asbestos has a sheet like

Question

All forms of asbestos occur as long fibers. Chrysotile asbestos has a sheet like structure with the sheets rolled into cl whereas amphibole asbestos has a chain-like structure of silica tetrahedra Due to its crystal structure, chrysotile is characterized by softer, more fle durable fibers than amphibole asbestos b· e. d. All forms of asbestos are equally deadly . 10) An igneous rock that cools slowly underground is likely to have a glassy texture consist of mineral grains too small to make out with the unaided eye consist of relatively large, easily seen mineral grains be darker in color than those erupted at the Earth's surface a. 11) Examine the rock sample at right. Estimate its composition, and how do you know? a. Ultramafic because of its relatively coarse grain Mafic because ofíts speckled,-salt and pepper" siz0. c. Intermediate because of its intermediate color d. Felsic because of the random arrangement of 12) For the rock at right, what specific rock name do you mineral grains 5 cn think would be most appropriate? gabbro a. rhyolite b. diorite d. peridotite. 13) The most common rock type at or near the Earth's surface in Ohio is a igneous intrusive (plutonic) igneous intrusive (plutonic) a. sedimentary c metamorphic d. igneous extrusive (volcanic) 14) To transform an igneous rock into a sedimentary rock, which of the following pr take place? melting and re-cooling, followed by crystallization. a. b. chemical reactions at high temperatures and pressures. weathering, transport, deposition, and lithification. d. impact by a meteorite. 15) Clay minerals are primarily a product of a. Mechanical exfoliation. c. precipitation from solution Chemical weathering by hydrolysis. chemical weathering by oxi

Explanation / Answer

10) c

11) b

12) c

13) b

14) c

15) b

16) a

17) c

18) e

19) e

20) c

21)

Sand stone-Quartzite

Limestone-Marble

Shale-Slate-Phyllite-Schist-Gneiss

Granite- Gneiss

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