GSA Bulletin: Rock Avalanches, Ancient Weather, Astronomical Clocks, Anoxia, and Volcanism

Highlights from GSA Bulletin articles published online on 20 March through 1 April 2014 include a discussion of a catastrophic rock avalanche in the Atlas Mountains of Morocco 4,500 years ago and that village situated there now; evidence of rain and humidity in ancient soils in the western United States; a contribution to the on-going EarthTime initiative, which is working to refine and calibrate deep time geochronometers; and a call for intensive field studies in volcanic areas.

Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...