News tagged with ancient rocks

Paleomagnetists put controversy to rest

(PhysOrg.com) -- Princeton University scientists have shown that, in ancient times, the Earth's magnetic field was structured like the two-pole model of today, suggesting that the methods geoscientists use ...

Oct 02, 2009 4.5 / 5 (11) 0

Bias in the rock record?

(PhysOrg.com) -- The fossil record is known to be biased by the unevenness of geographical and stratigraphical sampling, and the lack of exposed rocks containing fossils. In a recent Perspective in Science [2 Jan ...

Jan 14, 2009 4.1 / 5 (8) 0