|
Category
|
Definition
|
|---|---|
| Qp | Polycrystalline quartz |
| Qm | Monocrystalline quartz |
| P | Plagioclase feldspar |
| K | Potassium feldspar |
| F(?) | Feldspar (?) (possible feldspar-unstained thin section) |
| Lmm | Polycrystalline mica lithic (mixed or undetermined mica mineralogy) |
| Lmm-b | Polycrystalline mica lithic with biotite |
| Lmm-m | Polycrystalline mica lithic with muscovite |
| Lmm-c | Polycrystalline mica lithic with chlorite |
| Lmt | Quartz-mica tectonite lithic (mixed or undetermined mica mineralogy) |
| Lmt-b | Quartz-mica tectonite lithic with biotite |
| Lmt-m | Quartz-mica tectonite lithic with muscovite |
| Lmt-c | Quartz-mica tectonite lithic with chlorite |
| Lmt-alt | Quartz-mica tectonite lithic–altered |
| Lma | Quartz-feldspar-mica aggregate lithic (mixed or undetermined mica mineralogy) |
| Lma-b | Quartz-feldspar-mica aggregate lithic with biotite |
| Lma-m | Quartz-feldspar-mica aggregate lithic with muscovite |
| Lma-c | Quartz-feldspar-mica aggregate lithic with chlorite |
| Lmp | Metapelite lithic fragments |
| Lmc | Metacarbonate lithic fragments |
| Lsp | Sandy siltstone lithic fragment with detrital micas |
| Lsch | Sedimentary chert or cherty claystone lithic |
| Lsa | Claystone-shale lithic |
| Lsa A/D | Partially dissolved or altered claystone-shale lithic |
| Lsc micr | Microcrystalline calcite clasts |
| Lsc micr A/D | Altered/partially dissolved micrite clast |
| Lsc carb | Carbonate lithic clast |
| Unk Carb | Carbonate clast of unknown origin |
| Lv | Volcanic lithic |
| Op | Opaque dense minerals |
| Non-op | Nonopaque dense minerals |
| Biot | Biotite |
| Biot alt chl | Biotite altering to chlorite |
| Mu | Muscovite |
| Chl | Chlorite |
| Glauc | Glauconite |
| Other/unk | Other/Unknown grain |
| P-foram | Planktonic foraminifers |
| B-foram | Benthic foraminifers |
| Other foram | Foraminifer of unknown type or altered/dissolved |
| Sponge sp | Sponge spicule |
| Bryoz | Bryozoan |
| Red alg | Red algae |
| Rad | Radiolarian |
| Mollusk | Mollusk |
| Echino | Echinoderm |
| Ost | Ostracode |
| Bone frag | Bone fragment or other phosphatic fish debris |
| Pl | Plant (organic) matter |
| Bio other | Other or unknown bioclastic debris |
| Matrix silt | Silt matrix |
| Matrix clay | Clay matrix |
| matrix micrite | Micrite matrix |
| Other matrix | Other matrix |
| Carb cmt | Carbonate cement |
| Micr cmt | Micritic carbonate cement |
| Silica cmt | Quartz overgrowth cement |
| Gyp cmt | Gypsum cement |
| Zeol cmt | Zeolite cement |
| Op cmt | Opaque cement |
| Micro clay | Microporous clay |
| P intra | Intraparticle porosity |
| P inter | Interparticle porosity |
| P intra dissol | Secondary porosity due to dissolution of detrital grains |
| P frac | Fracture porosity |
| P other | Porosity of other/unknown origin |