Question

what types of sedimentary rocks were rare in the archeaneon? what does this suggest about the nature of cratons during archean time?

Answer 1

Proterozoic rocks and Archean rocks are often heavily metamorphized deep-water sediments, such as graywackes, mudstones, volcanic sediments, and banded iron formations.

Step-by-step explanation:

Carbonate rocks are rare, indicating that the oceans were more acidic due to dissolved carbon dioxide than during the Proterozoic.