b. a trench C. a volcanic island arc. a subduction zone e. All of the above feat

Question

b. a trench C. a volcanic island arc. a subduction zone e. All of the above features are typical of convergent plate boundaries igneous rocks are classified according to their a. weight and density. b. color and texture c. crystal form and color. d. crystal size and chemical/mineral composition. e. place and depth of origin. he crust of the earth where there are continents a. is the same composition as most of the sea floor. b. includes the asthenosphere and mantle. C. is relatively enriched in silicon and aluminum. d. is not as accessible to geologists as is the mantle. e, is relatively enriched in silicon and magnesium. The rocks likely to form at a divergent plate boundary are basalt. b. usually granitic in their average composition. c. often exposed in great batholiths. d. among the rarest on earth. e. usually composed of non-silicate minerals. Minerals that change structure and composition during cooling of a magma represent: a. discontinuous side of Bowen's Reaction Series b. continuous side of Bowen's Reaction Series c. crystal settling during differentiation d. assimilation e. geothermal gradient Partial of a rock usually results in a magma with a [higher Ilower l silica content than the parent rock. 6 The magma of volcanism at the mid-ocean ridges is produced primarily by the partial melting of I continental crust upper mantle rock I ic crust l and is mostly of l composition. e very first rocks to form on Earth's surface were ligneous he molten minerals in magma are primarily members of the l group.

Explanation / Answer

1. Igneous Rocks are classified according to their- Crystal size and Chemical/mineral composition

2. The crust of the earth where there are continent-

is the same composition as most of the sea floor

3.Rocks likely to form at the divergent plate boundary are

Basalt

4. Minerals that change the structure and composition during the cooling of magma represents- continuous side of Bowen's Reaction Series

5. Partial melting of magma usually results with the lower silica content with the parent rock

6. The magma volcanism at the mid-ocean ridge is produced primarily by the partial melting of the continental rock and is mostly of granitic composition

7. The very first rocks to form on Earths surface were Igneous

8. The molten minerals in magma are primarily members of the silicate group

9. In correct order from the center outward, Earth include which units

core, inner mantle, outer mantle, crust

10. The asthenosphere is part of which interior shell is the earth

Mantle

11. Which one of the only molten, metallic, interior Earth shell?

Inner Core

12. Which is the thinnest of earth different shell?

Crust

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