Genesis of calcite vein in basalt and its effect on reservoir quality: A case study of the Carboniferous in the east slope of Mahu sag, Junggar Basin, NW China

XIA Lu,CAO Yingchang,BIAN Baoli,LIU Hailei,WANG Xiaoxue,ZHAO Yiwei,YAN Miaomiao

Fig. 14. Characteristics of brine inclusions of calcite veins in basalt samples from Well Ma 201. (a) and (b) are the plane-polarized and fluorescent photos in the same field of view. The green circle indicates the location of the inclusion in Period-I calcite. (c) and (d) are the plane-polarized and fluorescent photos in the same field of view. The red circle shows the location of the inclusion in Period-II calcite.