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Racemization reaction rate constants of aspartic acid (kAsp) were obtained and compared in bulk foraminifera and in a dissolution resistant foraminiferal species Pulleniatina obliquiloculata obtained from marine sediments through ca. 20,000 yrBP in the western equatorial Pacific. The average kAsp values were 0.63 10 -5 yr -1 for bulk foraminifera and 0.72 10 -...
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