Mid-Cretaceous marine Os isotope evidence for heterogeneous cause of oceanic anoxic events - PubMed

Fig. 2. ¹⁸⁷O/¹⁸⁸Os_i and δ¹³C_carb records of the Umbria–Marche Basin and ODP Site 763B.

a Umbria–Marche Basin: lithology, biostratigraphy, biostratigraphy, and geochemical data are from Coccioni et al.^,, Coccioni and Premoli Silva, Coccioni, Turgeon and Creaser; Tejada et al., Li et al., Savian et al., Matsumoto et al.^,, Percival et al., and this study. b ODP Site 763B: lithology, biostratigraphy, and geochemical data are from Haq et al., Bralower et al., and this study. Ma. Maiolica, Sc. Ro. Scaglia Rossa, Ba. Barremian, Tur. Turonian, G. Globigerinelloides, apt aptiensis, L. Leupoldina, fer. ferreolensis, algeria. algerianus, H. Hedbergella, troc. trocoidea, M. Microhedbergella, P. Paraticinella, mini. miniglobularis, reni. renilaevis, T. Ticinella, B. Biticinella, Ps. Pseudothalmanninella, su. subticinensis, ticine. ticinensis, Pth. Parathalmanninella, appen. appenninica, Th. Thalmanninella, R. Rotalipora, r. reicheli, g. globotruncanoides, W. Whiteinella, a. archaeocretacea, Hv. Helvetoglobotruncana, h. Helvetica, J Jacob, K Kilian, U Urbino, L Leenhardt.