Which soil horizon contains unaltered to partially-altered parent materials? Hin
ID: 114957 • Letter: W
Question
Which soil horizon contains unaltered to partially-altered parent materials?
Hints
Which soil horizon contains unaltered to partially-altered parent materials?
How might differential stress act as an agent of metamorphism to create a metamorphic rock?
a Differential stresses trigger chemical reactions that recrystallize old minerals as well as create new ones.
b Differential stresses release chemical fluids that enable ion migration, which can generate new crystals.
Even pressure on all sides will create a more compact, more dense rock.
c Differential stresses melt old minerals, which solidify into new rocks.
d Unequal pressures will deform a rock created of layers of flattened mineral grains.
Explanation / Answer
1] Option C horizon is correct
C horizon lies directly over the unaltered parent material and consists of parent material partially altered by weathering
2] Optin D is correct
Agents of metamorphism pressures differential stress applies force unequally and in different directions
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