All Articles Tagged As: sedimentary rock

Low Oxygen and Molybdenum Levels in Ancient Oceans Delayed Evolution of Life by Two Billion Years (3/31/2008)

Study tracked biogeochemical signatures preserved in ancient sedimentary rocks to establish nature and timing of oxygenation of Earth's atmosphere ...> Full Article

Hot springs microbes hold key to dating sedimentary rocks, researchers say (1/23/2008)

Scientists studying microbial communities and the growth of sedimentary rock at Mammoth Hot Springs in Yellowstone National Park have made a surprising discovery about the geological record of life and the environment. ...> Full Article

As waters clear, scientists seek to end a muddy debate (12/16/2007)

Geologists have long thought muds will only settle when waters are quiet, but new research shows muds will accumulate even when currents move swiftly. ...> Full Article

Geologist discovers Martian mineral (10/4/2007)

A researcher's surprising discovery - made first in his garage and later verified through field work - has resulted in the naming of a new mineral species that may exist on Mars, and has caught the attention of the NASA space program. ...> Full Article