Concept #2 Quiz
select the best possible answer come the complying with questions about vital Concept 2 "Detrital sedimentary rocks."
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You are watching: What is the most abundant mineral in detrital sedimentary rocks
| What minerals are most common in detrital sedimentary rocks and why? choose all the apply. | calcite – it is the many abundant product the precipitation from warmth ocean water |
| clay – that is the most abundant product of chemical weathering of feldspar |
| halite – the is a usual product of evaporation the lake water |
| quartz – the is extremely durable and resistant to chemical weathering |
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| 2. | Match the complying with detrital sediment types with the main mode the lithification into sedimentary rock:Using the pulldown boxes, enhance each article on the left to the corresponding item at right. | A. Compaction and also water expulsion | | B. Cementation and also compaction |
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Choice AChoice B| mud (mudstone) | | Choice AChoice B | sand (sandstone) | | |
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| 3. | What is the main basis because that distinguishing amongst various detrital sedimentary rocks? Why?| rock dimension – a useful observation indicating the quantity of mechanically weathering | | mineral composition – one indicator the the resource of the sediment | | particle dimension – a useful observation describe the environment of deposition | | particle form – a valuable observation denote the quantity of mechanically weathering |
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| 4. | Detrital grains of part mineral(s) are extremely rare in detrital sediments. I m sorry minerals and why?| feldspars – they occur only in granite | | quartz – that is very hard and also insoluble in water | | calcite – it is soft and relatively soluble in water | | clays – they space rare in soils and also regolith layers |
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| 5. | Match the detrital rock through the ideal description:Using the pulldown boxes, complement each items on the left to the matching item at right. | A. Well-sorted, medium-size (up come 2 mm) particles, huge pore spaces, accounts for about 20% that sedimentary rocks | | B. Silt- and clay-size particles, tiny pore spaces, accounts because that > 50% the sedimentary rocks | | C. Quartz, feldspar and also rock pieces dominate, poorly sorted, angular grains | | D. Angular large particles that room poorly sorted, few pore spaces | | E. Gravel- and also sometimes boulder-sized corpuscle that are poorly sorted and also rounded, few pore spaces |
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Choice AChoice BChoice CChoice DChoice E| breccia | | Choice AChoice BChoice CChoice DChoice E | conglomerate | | Choice AChoice BChoice CChoice DChoice E | graywacke | | Choice AChoice BChoice CChoice DChoice E | quartz sandstone | | Choice AChoice BChoice CChoice DChoice E | shale | | |
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| 6. | If shale is such a usual rock in the sedimentary rock world, why isn"t it together prominently exposed at the surface ar as sandstone? | Shale crumbles easily, causing increased mechanical weathering, whereas sandstone resists weathering an ext effectively. | | Shale resists weathering an ext effectively, conversely, sandstone crumbles easily, causing boosted mechanical weathering. | | Shale has conveniently broken, highly reactive minerals, vice versa, sandstone has actually harder-to-break minerals. | | Shale dissolves in water, conversely, sandstone dissolves just if sufficient carbonic acid is current in the water. |
| | | | 7. | Select the answer that lists the usual detrital sedimentary rocks in bespeak of boosting particle size.| sandstone, conglomerate, shale | | conglomerate, sandstone, shale | | shale, conglomerate, sandstone | | sandstone, shale, conglomerate | | shale, sandstone, conglomerate |
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| Label the layer with the proper rock form based on just how the layer has weathered and also mass-wasted:For every item below, use the pull-down menu to choose the letter that labels the correct component of the image.
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