A treasure hunter uses a metal detector during a warm day at Santa Monica Beach on Monday, Feb. 24, 2025. Sediment at Santa Monica Channel and Topanga Creek was tested and showed no toxic ...

where the sediment settles out to form a beach deposit with a characteristic dipping angle. New observations indicate that early in its history, Mars also had an open ocean with tides and wind ...

"Shorelines are great locations to look for evidence of past life." Today, Mars is a chilly desert of rock and dust — but 4 billion years ago, the planet had rivers, lakes and even oceans with sandy ...

The size and morphology of coastal dunes is dependent on the complex interaction between controlling winds, sediment supply, and the geomorphology of the nearshore and beach environment.

The movement of sediment into the back beach environment often results in the formation of coastal dunes. Aa Aa Aa For large-scale coastal dune development there needs to be a suitable wind regime ...

Dark sediment taken from the beaches near burn scar areas at Santa Monica Channel and Topanga Creek do not contain any chemicals that would classify it as hazardous waste, the Los Angeles County ...