Computer Science
Scientific paper
May 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974gecoa..38..739j&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 38, Issue 5, pp.739-745
Computer Science
6
Scientific paper
We propose that the europium excess in Precambrian sedimentary rocks, relative to those of younger age is derived from volcanic rocks of ancient island arcs, which were the source materials for the sediments. Precambrian sedimentary rocks and present-day volcanic rocks of island arcs have similar REE patterns, total REE abundances and excess Eu, relative to the North American shale composite. The present upper crustal REE pattern, as exemplified by that of sediments, is depleted in Eu, relative to chondrites. This depletion is considered to be a consequence of development of a grandioritic upper crust by partial melting in the lower crust, which selectively retains europium.
Jake Petr
Taylor Stephen R.
No associations
LandOfFree
Excess europium content in precambrian sedimentary rocks and continental evolution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Excess europium content in precambrian sedimentary rocks and continental evolution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Excess europium content in precambrian sedimentary rocks and continental evolution will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1596251