Question

sedimentary rocks are often formed in layers. what is this layering called? ripple marks foliation stratification nonfoliation

Explanation:

• Ripple marks are small-scale sedimentary structures formed by water or wind action on sediment surfaces, not related to layering of rocks.
• Foliation is a planar arrangement of mineral grains in metamorphic rocks, not specific to sedimentary rock layering.
• Stratification is the process of layering in sedimentary rocks. Sediments are deposited in layers over time, and this layering is called stratification.
• Nonfoliation is the absence of foliation (planar arrangement) in metamorphic rocks, not relevant here.

Answer:

stratification