Topic
Sedimentology
3 questions tagged Sedimentology — spanning every one of the seven Ws.
what
What are varves in geology?
Varves are annual layers of sediment, usually deposited in lakes. Each pair of light and dark layers can represent one year of deposition.
GeologySedimentology
why
Why do river deltas form where rivers meet the sea?
Deltas form when a river slows down and drops the sediment it carries faster than waves and tides can remove it. The deposited material builds new land outward into the water.
Earth ScienceSedimentology
why
Why do coral reefs turn into limestone over time?
Coral skeletons are made mainly of calcium carbonate. When reefs are buried and compacted, those skeletal remains can harden into limestone.
Earth ScienceSedimentology