![Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile](https://www.researchgate.net/profile/Susan-Ziegler/publication/367979130/figure/fig1/AS:11431281117137811@1675387639399/Lignin-phenol-diagenesis-index-LPDI-vs-the-CP-MAS-13-C-NMR-alkyl-carboxyl_Q320.jpg)
Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile
![Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile](https://www.researchgate.net/profile/Susan-Ziegler/publication/367979130/figure/fig3/AS:11431281117130184@1675387639928/Lignin-diagenetic-state-as-observed-through-the-lignin-phenol-diagenetic-index-LPDI-is_Q320.jpg)
Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile
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![Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile Ronald BENNER | Carolina Distinguished Professor Emeritus | PhD | University of South Carolina, SC | USC | Department of Biological Sciences | Research profile](https://www.researchgate.net/profile/Susan-Ziegler/publication/367979130/figure/fig2/AS:11431281117143798@1675387639805/The-lignin-phenol-diagenetic-index-LPDI-increases-with-organic-layer-depth-with_Q320.jpg)