SUMMARY Harmotome‐rich scorias and indurated tuffaceous mudstones occur in sediments west of the Society Ridge, South Pacific. Diagenetic alteration of mafic palagonite produces the following authigenic minerals: harmotome, phillipsite, goethite, limonite and montmorillonite. A major mode of induration of pyroclastic‐rich marine sediments is the devitrification of mafic palagonite producing the following diagenetic cementing minerals: phillipsite, harmotome, limonite, and to some extent, manganese and ferromanganese oxides.
No takes yet. Share an insight, caveat, or question.
Maury Morgenstein (1967) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: