Open Access
BSGF - Earth Sci. Bull.
Volume 192, 2021
Article Number 41
Number of page(s) 35
Published online 18 October 2021

Supplementary Material

Figure S1. SEM images of cut and polished coated bubble: (A) cross-section of a cut bubble. The B-F areas are located as white rectangles; (B) needle-like CaCO3 crystals in external layers of the coated bubble’s wall; (C) rosette-shaped CaCO3 crystals in the external layers of the coated bubble’s wall; (D) spherical radial needle crystals of CaCO3 forming the inner layers of the coated bubble; (E, F) hemispherical radial needle crystals of CaCO3 in the internal part of the bubble; (G) schematic cross-section of the cut bubble with the location of image A.

Figure S2. FTIR spectra of coated bubble (source: Rruff database): (A) aragonite with characteristic peaks of intensity at 699, 712, 855, 1082 and 1446 cm−1; (B) calcite with characteristic peaks at 712, 871, 1165, 1399 and 1796 cm−1. Additional peaks correspond to the LR-white resin.

Table S1. Description of the facies and their depositional environments.

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© E. Vennin et al., Published by EDP Sciences 2021

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