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   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Keiiti Aki.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Rosa, João Willy Corrêa</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">1986</dim:field>
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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1987.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Bibliography: leaves 416-449.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by João Willy Corrêa Rosa.</dim:field>
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