Figure 4- - uploaded by Deborah Tangunan
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Photomicrographs of calcareous nannofossils from Mamburao, Occidental Mindoro, Philippines. Scale bars=2µm; PL-Polarized Light; PH-Phase Contrast Light. A. Rhabdosphaera clavigera. 1049.5-1109.5cm (PL). B. Sphenolithus heteromorphus. 1163-1200cm (PL). C. Sphenolithus abies. 982-1006.5cm (PL). D. Discoaster triradiatus. 293-350cm (PH). E-G. Discoaster tamalis. E-F, 1163-1200cm; G, 982-1006.5cm (PH). H, K-L. Discoaster asymmetricus. H, 444-457cm; K-L, 888.5-897.5cm (PL). I-J. Discoaster pentaradiatus. 590.5-628.5cm (PH). M-P. Discoaster brouweri. M, 982-1006.5cm; N-O, 364-392cm; P, 590.5-628.5cm (PH). Q-T. Discoaster surculus. Q-R, 1113-1121cm; S, 441-444cm; T, 1049.5-1109.5cm (PH). U. Discoaster kugleri. 1049.5-1109.5cm (PH). V. Overgrown Discoaster. 1024.5-1031.5cm (PH). W. Florisphaera profunda. 364-392cm (PL). X. Ceratolithus telesmus. 1163-1200cm (PL). Y. Ceratolithus cristatus. 80-115cm (PL).
Source publication
This study investigates the calcareous nannofossil assemblage and composition of 62 field samples collected from a calcareous sedimentary sequence exposed in Mamburao, Occidental Mindoro, Philippines. The sequence consisting of foraminifera-rich, alternating beds of mudstones and fine- to medium-grained sandstones was subjected to stratigraphic log...
