Abstract
More than 1000 precise analyses of trace elements in basic and ultrabasic rocks of the Mid-Indian Ocean Ridge have been used for geochemical comparison with similar data for the continents, islands and chondrites. We can draw a preliminary conclusion that the transport of trace elements in the oceanic segment of the Earth was controlled by two main processes: ( a ) degassing of the mantle, and ( b ) primary formation of the oceanic upper mantle and crust. Results of both processes may jointly occur.
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Schedule a callMore From: Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences
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