Etching of garnets and partial to complete dissolution of other aluminosilicate minerals were caused by high concentrations of organic acids generated during the maturation of epigenetic organic matter (predominantly type-III kerogen) in the Morrison Formation. The presence of authigenic phases that form near 100oC indicates that temperatures were high enough during diagenesis to cause the thermal degradation of kerogen.-from Author
Citation Information
Publication Year | 1987 |
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Title | Petrologic and experimental evidence for the etching of garnets by organic acids in the upper Jurassic Morrision Formation, northwestern New Mexico. |
Authors | P. L. Hansley |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Sedimentary Petrology |
Index ID | 70014792 |
Record Source | USGS Publications Warehouse |