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Fig. 2 | Swiss Journal of Geosciences

Fig. 2

From: Sedimentary architecture of shallow-water fan-delta front in a lacustrine basin: Sangyuan section of Lower Cretaceous Xiguayuan Formation, Luanping Basin, northeast China

Fig. 2

3D digital model of the Sangyuan section that was established based on UAV observations data. From the bottom to top, the thickness of gravel-sand deposits gradually decreases, and then it increases according to fluctuations of the lake level. A symmetrical ripples that indicate a shallow-water environment above the wave base; B cross-laminated sandstones reflecting actions of traction currents; C symmetrical ripples; D coarse-grained sediments; E mud cracks that are indicative of a subaerial environment; F slump structures associated with gravity flow deposits

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