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Archean greenstones are interpreted as being formed in __________________.

a. volcanic arcs
b. back arc basins
c. midocean ridges
d. meteorite impacts
e. None of the above

1 Answer

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Final answer:

Archean greenstones are interpreted as being formed in back arc basins, which are basins formed near a volcanic arc on the side opposite the oceanic trench. Early Earth had a very different atmosphere, extreme radiation, and a lot of geologic upheaval and volcanic activity.

Step-by-step explanation:

Archean greenstones are interpreted as being formed in back arc basins. A back arc basin is a basin formed near a volcanic arc on the side opposite the oceanic trench. It is the result of extension caused by mantle convection behind a subduction zone and its island arc. In the context of early Earth conditions, it is important to note that early Earth had a very different atmosphere, was subject to extreme radiation, and had a lot of geologic upheaval and volcanic activity.

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