5 - Diagenesis

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Carbonate CementsPendant calcite cementhttp://sheba.geo.vu.nl/~imma/Project3.htmlBladed calcite cement followed by coarse sparhttp://web.umr.edu/~greggjay/Carbonate_Page/LSGallery/pages/c-TF(F)b_10.htm
Mineral Replacement• Dissolution of one mineral is replacedby another, simultaneously• No volume change• Carbonate replacement bymicrocrystalline quartz; chert bycarbonates; feldspars and quartz bycarbonates; feldspars by clay mineralsSericitewww-geoazur.unice.fr/PERSO/verati/Mineral Recrystallization• Existing mineral retains originalchemistry but increases in size• Volume change• Amorphous silica to coarse crystallinequartz; fine lime mud into coarse sparrycalcite
Page 1 and 2: DiagenesisChapters 5, 6, 7Diagenesi
Page 3 and 4: Boggs 2001BioturbationCarbonates•
Page 5 and 6: Diagenetic ProcessesMcIlreath and M
Page 7 and 8: Factors influencing the solubility
Page 9: Chlorite CementBoggs 2001Illite cem
Page 13 and 14: Diagenetic Structures• Liesegange
Page 15 and 16: SEM image of quartzovergrowth (Q),c
Page 17 and 18: Secondary Porosity• Development o
Page 19 and 20: Secondary porosity - Dakota Fm.Inte
Page 21 and 22: van Krevelen plotSummary• Diagene

5 - Diagenesis

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