Abstract

Evidence from Holocene and fossil miliolacean foraminifera indicates that the loss of magnesium from these skeletal magnesian calcites can take place without electron–optically visible alteration in the crystal morphology. A cation exchange reaction is suggested as a possible explanation for this observation. Subsequent stages of textural change (recrystallization) suggest that the loss of magnesium does not necessarily stabilize the resultant calcite from further diagenetic alteration.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.