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Fig. 2 | Journal of Palaeogeography

Fig. 2

From: Hydrothermal-sedimentary dolomite — a case from the Middle Permian in eastern Junggar Basin, China

Fig. 2

Distributions of sedimentary exhalative rocks (according to Liu et al. 2019) and dolostones of the Middle Permian Lucaogou Formation in Well J174 and Well J37 (a), and petrographic characteristics of the sedimentary exhalative rocks in Well J174 (b-e). a Lithostratigraphy of the Lucaogou Formation; b Thin-section photomicrograph showing that calcite layers with smooth boundaries are deformed around rigid calcite crystals under cross-polarized light; c Thin-section photomicrograph of calcite layers and calcite crystals; d Photograph of a sedimentary exhalative rocks with coarse-grained calcites scattered in fine-grained matrix; e Thin-section photomicrograph showing fractured calcite crystals in the rectangle part in (d) under plane-polarized light. Zonal structures are present in the crystal

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