Topic
Sedimentary Rocks
3 questions tagged Sedimentary Rocks — spanning every one of the seven Ws.
why
Why do sedimentary layers usually form in bands?
Sedimentary layers form in bands because sediments are deposited over time in separate events. Changes in grain size, chemistry, or environment create distinct strata.
Earth ScienceSedimentary Rocks
what
What is banded iron formation?
Banded iron formation is a layered sedimentary rock rich in iron oxides, deposited mostly in Earth’s ancient oceans.
Earth ScienceSedimentary Rocks
which
Which sediment type is most likely to form fossil-rich limestone?
Marine carbonate sediment is most likely to form fossil-rich limestone, especially in shallow warm seas.
Earth ScienceSedimentary Rocks