Research Article

Pore Structure Differentiation between Deltaic and Epicontinental Tight Sandstones of the Upper Paleozoic in the Eastern Linxing Area, Ordos Basin, China

Figure 13

Shape of fluid inclusions in coal-measure sandstones. (a) Hydrocarbon-bearing brine inclusions in quartz grain cracks; (b) carbon dioxide gaseous hydrocarbon inclusions in calcite fractures.
(a)
(b)