Earth’s climate over millions of years is shaped by both internal forces, like volcanic activity, and external ones, such as ...

When mollusks and other carbon-rich organisms die, their shells and body parts can accumulate in ocean sediments, forming carbonate-rich deposits. Locked away Seagrasses also trap carbon in ...

They also imply that there were rivers that dumped sediment into the ocean that was distributed by waves along the beaches. "The presence of these deposits requires that a good swath of the planet ...

PEROXIDE of manganese occurs widely in ocean deposits, either as nodules, incrustations, or as depositions on the bottom itself. It has been found most frequently in the nodular form in the deep ...