The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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AAPG Bulletin; Year: 2026; Issue: January DOI: 10.1306/11132524122
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Figure 7. Main primary components observed in the studied wells. (A) Muddy spherulstone with irregular distribution of Mg-clay matrix and calcite spherulites; crossed polarizers (XP). (B) Shrubstone formed by large fascicular aggregates with preferential vertical growth (XP). (C) Mudstone with plane-parallel lamination; uncrossed polarizers (//P). (D) Massive calcarenite with interparticle porosity (blue) (//P).
Figure 7. Main primary components observed in the studied wells. (A) Muddy spherulstone with irregular distribution of Mg-clay matrix and calcite spherulites; crossed polarizers (XP). (B) Shrubstone formed by large fascicular aggregates with preferential vertical growth (XP). (C) Mudstone with plane-parallel lamination; uncrossed polarizers (//P). (D) Massive calcarenite with interparticle porosity (blue) (//P).