The anhydrite section can be summarized as white to milky white, soft to firm, amorphous, cryptocrystalline to microcrystalline, massive and washable; the associated dolomite section is light brown to light brownish gray moderately hard to hard, compact, cryptocrystalline to microcrystalline, sucrosic
and characterized by no visual porosity.
Very finely to coarse-crystalline dolostones alternate, containing vuggy intervals which often have sucrosic texture (Fig.
For sucrosic dolomites (type 4) 13 measurements of stable isotopes were made (Table 3).
Sucrosic dolomites, typical of the Upper Pskov unit (Figs 3D, 6D, 10, Table 2), are distinguished as type 4 dolomites, which have a complicated diagenetic history.
The subjacent interval includes a gray color sucrosic
dolostone with very closely spaced vertical joints, similar to the interval in the Reeves Cave entrance profile.
The gangue mineralogy of the massive sulfides tends to be sucrosic
066 Quartz- vuggy, sucrosic
, oxidized sulfides in voids 3 0.
Petrographic analysis suggests that two phases of dolomite precipitation are present: the first consists of a fine-grained, fabric-destructive cement that probably accompanied early burial; the second is a fine- to medium-grained, locally sucrosic
dolomite that is interpreted to have precipitated during later burial.
The A1Carbonate Sucrosic
Dolomite porosity with an oil show encountered in the Portrush et al #1, Moore 5-13-III suspended well was tied to the Seismic.
The drilling samples revealed a very fine - fine crystalline, sucrosic dolomite with abundant intercrystalline and vugular porosity.
The drilling samples revealed a micro-very fine crystalline, slightly sucrosic dolomite with a trace of intercrystalline porosity.
26 Crone Hill Quartz vein grab low-grade sucrosic
, no angel wing or banding but 5% sulfide 116553 0.