Fig. 2: Sediments associated with microbial mats and crusts.
From: Non-lithifying microbial ecosystem dissolves peritidal lime sand
a Top of core VC-03 with polygonal microbial mat overlying ooid-skeletal sand with cerithid gastropods (black arrows) and bivalve fragments (white arrows). b VC-03 consists of ooid-skeletal sand throughout its 223 cm length. c Nodule in a partially indurated interval of core VC-03 at 178 cm preserving small burrows and ripple cross-lamination. d Plane-polarized light photomicrograph showing dissolution features in ooid-Halimeda sand in VC-03 at 150 cm. e Laminated organic material interpreted as a decaying mat in VC-05 at 60 cm, and a thin, mud-rich interval at 42 cm. f Calcifying mats (arrows) along the rim of the hypersaline pond. Researchers for scale. g Mineralization of mangrove leaves and filaments in the calcified mats rimming the pond.
