True or false Young lavas are generally good aquifers. Basalt is a.pdf

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True or false: Young lavas are generally good aquifers. Basalt is a good aggregate and valuable roadstone. Basalt is rich in quartz. Muscovite is more resistant to weathering than biotite. Larvikite is a dark coarse granite with distinct internal reflections. Dolomite is weaker than calcite. Chert is a volcanic rock. Travertine is a marine limestone. Hade angle is > 90 degree. Camber folds are tectonic compressive structures. Solution 1) True, Young lavas can be good aquifer. The lava contains mainly pores in them which can hold water. This young lava after cooling can have pores filled with water. 2) True, Basalt has good strengthm, are durable and have better thermal properties. Hence it is a good aggregate and roadstone. 3) True, Basalt has 50% of quartz in composition. 4) False, Muscovite is very thin as compared to Biotite. Hence it is very liable to weather compared to Biotite. 5) True. 6) False, Though the hardness of both the rocks are same i.e. 3. Dolomite is slightly harder and denser than calcite. 7) False, Chert is sedimentary rock i.e. they are sediments due to water around the rivers, lakes, sea, ice, wind etc. 8) True, It is a limestone usually deposited by mineral hot springs. 9) False, Hade angle is 90-Dip angle hence it should be less than 90 degree. 10) False. Camber folds are non structre folds hence they are not compressive structures..

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7. Oil and water resources are generally hosted in ___________ rocks. a. Organic b. Biochemical c. Volcanic d. Chemical e. Clastic 8. Shales, siltstones, and very fine-grained limestones are pretty similar in that the clast size is too fine to see with the naked eye. How can someone differentiate them/identify one from the others? Select all that apply. a. Limestone will always have fossils visible b. Limestone will react with acid c. You can identify the limestone, but you can't tell shales and siltstones apart without a microscope. d. Shales is fissile (will break into think layers) e. Siltstone has an earth lustre f. Shale is always black in colour 9. How does the roundness of clasts correlate with transportation distance? a. Rounded clasts have travelled further an angular clasts b. Roundness doesn't mean anything; the type of mineral impacts how far clasts can travel c. Roundness doesn't mean anything; the hardness of a mineral impacts how far clasts can travel d. Angular clasts have travelled further than rounded clasts 10. Which of the following rocks is NOT a biochemical sedimentary rock? a. Dolostone b. Travertine c. Chert d. Coal e. Limestone 11. A rock that has clasts that are bigger than 2mm that are rounded, What is that?. (one word, spelled correct, no punctuation). 12. Potash, Salt, and Gypsum are chemical rocks formed by this process, process name? 14. What two factors impact how a rock will be metamorphosed? a. Rate of Cooling and Pressure b. Pressure and Depth of Burial c. Heat and Depth of Burial d. Heat and Pressure 15: Metamorphism of rocks causes the recrystallization of minerals, resulting in smaller crystal sizes. Select one: True False 16: The parallel alignment or layering of mineral grains due to metamorphism is called what? 18. Why do you not find fossils in igneous and metamorphic rocks? a. The textures of these rocks makes it impossible to see the fossils b. The heat and pressure used to form these rocks would destroy any fossils c. The fossils are replaced by crystals of new minerals d. Yes you do, they are just too small to see. .

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1.What can cause the solid rock of the upper mantle or crust to melt? Select all that apply: Select 3 correct answer(s) a localized radioactivity b pressure decrease c temperature increase d pressure increase e presence of volatiles (water, gases) 2. Nearly all igneous rocks are composed almost entirely of which class of mineral? a carbonates b native elements c silicates d oxides 3. Magma can have different compositions. Select all the terms from the following list that describe what affects the composition of newly-forming magma: Select 2 correct answer(s) a source rock composition b partial melting c magma mixing d assimilation 4. Select the terms that describe how a magma can change composition: Select 3 correct answer(s) a fractional crystallization of the melt b magma mixing from different sources c assimilation of surrounding rock d partial melting of source rock 5. Which of the following magma types/compositions contains the most silica? a felsic b intermediate c mafic 6. Which of the following best describes Bowen's reaction series? a How minerals crystallize out of magma, change the composition of the magma, and react with it to form new minerals as the magma cools. b The order in which minerals crystallize as an igneous rock forms. c The series of silicate mineral types that form at different temperatures as magma cools. d The minerals that crystallize as magma cools: rapid cooling produces ultramafic rock, while slow cooling produces felsic rock. 7. Match the intrusive igneous term to its description: 1 Literally "foreign rock"- rock that falls into the magma chamber and doesn't melt. 2 sheet-like or tabular body of magma that intruded between layers of the pre-existing geology. 3 sheet-like or tabular body of magma that intruded cracks that cut across the pre-existing geologic layering. 4 A combination of numerous large intrusions that cover an entire region. 5 The process of magma breaking rock from the roof of the magma chamber as it pushes upward. 6 A bulb or balloon-shaped mass of magma that is migrating upward through the local rock. dike sill batholith stoping xenolith diapir 8. The crystal size in an igneous rock is related to: a how fast it cooled. b the amount of silica present. c how fast the crystals reacted with the melt. d how saturated the melt was. 9. Match the intrusive igneous rock with its extrusive equivalent: 1 rhyolite 2 andesite 3 komatiite 4 basalt granite diorite gabbro peridotite 10. Match the extrusive igneous term with the correct description: 1 Basaltic lava that has either lost its volatiles or cooled on top of a moving flow and becomes torn, chunky, and rough. Also called clinkers. 2 Pea- to golf ball-sized fragments ejected during an eruption. Glassy bits are called cinders. 3 polygonal columns formed by the cooling contraction of lava; forms perpendicular to the lava surface. 4 Stacked lumps of basalt lava with thin, glassy rims. 5 Small glass bubble fragments blown into the atmosphere. 6 From dust.

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