Concept #2 Quiz

choose the best possible answer to the following questions about vital Concept 2 "Detrital sedimentary rocks." breccia
1.

You are watching: What minerals are most common in detrital sedimentary rocks

What minerals room most usual in detrital sedimentary rocks and also why? pick all the apply. calcite – it is the most abundant product that precipitation from warmth ocean water
clay – that is the many abundant product of chemistry weathering that feldspar
halite – the is a usual product that evaporation the lake water
quartz – it is extremely durable and also resistant to chemical weathering
2.Match the following detrital sediment varieties with the major mode the lithification into sedimentary rock:Using the pulldown boxes, enhance each item on the left come the equivalent item at right.
A. Compaction and also water expulsion
B. Cementation and compaction
Choice AChoice B
mud (mudstone)
Choice AChoice Bsand (sandstone)
3.What is the main basis for distinguishing among various detrital sedimentary rocks? Why?
rock dimension – a helpful observation indicating the amount of mechanical weathering
mineral ingredient – an indicator the the resource of the sediment
particle size – a beneficial observation indicating the environment of deposition
particle form – a advantageous observation describe the quantity of mechanical weathering
4.Detrital seed of part mineral(s) are incredibly rare in detrital sediments. I m sorry minerals and also why?
feldspars – they occur only in granite
quartz – that is really 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
5.Match the detrital rock v the suitable description:Using the pulldown boxes, complement each items on the left to the equivalent item at right.
A. Well-sorted, medium-size (up to 2 mm) particles, huge pore spaces, account for about 20% of sedimentary rocks
B. Silt- and also clay-size particles, tiny pore spaces, accounts because that > 50% the sedimentary rocks
C. Quartz, feldspar and also rock fragments dominate, poorly sorted, angular grains
D. Angular huge particles that are poorly sorted, few pore spaces
E. Gravel- and sometimes boulder-sized corpuscle that space poorly sorted and rounded, couple of pore spaces
Choice AChoice BChoice CChoice DChoice E
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Choice AChoice BChoice CChoice DChoice Econglomerate
Choice AChoice BChoice CChoice DChoice Egraywacke
Choice AChoice BChoice CChoice DChoice Equartz sandstone
Choice AChoice BChoice CChoice DChoice Eshale
6.If shale is together a typical rock in the sedimentary rock world, why isn"t it as prominently exposed at the surface ar as sandstone?
Shale crumbles easily, causing boosted mechanical weathering, conversely, sandstone resists weathering much more effectively.
Shale resists weathering an ext effectively, whereas sandstone crumbles easily, causing boosted mechanical weathering.
Shale has easily broken, very reactive minerals, vice versa, sandstone has harder-to-break minerals.
Shale disappear in water, vice versa, sandstone dissolves only if sufficient carbonic acid is present in the water.
7.Select the answer the lists the common detrital sedimentary rocks in bespeak of increasing particle size.
sandstone, conglomerate, shale
conglomerate, sandstone, shale
shale, conglomerate, sandstone
sandstone, shale, conglomerate
shale, sandstone, conglomerate
8.

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Label the layer with the proper rock type based on exactly how the layer has weathered and also mass-wasted:For every item below, usage the pull-down menu to pick the letter the labels the correct part of the image.
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