Geobulletin alpha

Source info:

Author:	Will Baird
Date:	2013-04-25 00:00:00
Blog:	The Dragon’s Tales
URL:	http://thedragonstales.blogspot.com/2013/04/clues-to-ancient-earth-crust-recycled.html

Summary:

Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including Carnegie's Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Their work is

Content analysis:

Stratigraphic context:

Recognized stratigraphic terms [n]:	Archean [1]
Agenames chronostratigraphy [rating]:	Archean [0.1] Precambrian [0.1]

Keywords:

Archean era, certain oceanic volcanoes, decisive evidence, early Earth, Earth Crust Recycled, Erik Hauri, geology, lava, New research, oceanic volcanic rocks, recycled crust, Volcanoes Scientists