Common sedimentary authigenic minerals include calcium carbonate, apatite, and clays.
2.
Faujasite occurs in vesicles within basalt and phonolite lava and tuff as an alteration or authigenic mineral.
3.
There is a clear relationship between known hydrocarbon discoveries at great depth in the Gulf slope and chemosynthetic communities, hydrocarbon seepage, and authigenic minerals including carbonates at the seafloor ( Sassen et al ., 1993a and b ).
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