AUTHIGENIC CEMENTATION OF SCORIACEOUS DEEP-SEA SEDIMENTS WEST OF THE SOCIETY RIDGE,SOUTH PACIFIC1 |
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| Authors: | MAURY MORGENSTEIN |
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| Abstract: | 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. |
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