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• Wattenberg field
  ...ude mixed layer illite/smectite, illite, chlorite, quartz overgrowths, and calcite. Detrital clay further limits reservoir quality. The Codell in Wattenberg i ...ygiene sandstones<ref name=PortWeim1982 />. Leaching of calcite cement and calcite-replaced grains and matrix and dissolution of framework grains and pseudoma
  72 KB (10,249 words) - 20:06, 15 January 2024
• Shale-oil resource systems
  ...ites]], more refractory (highly variable late oil–to–dry gas windows); and calcite, in [[metagenesis]].<ref name=J&J2007>Jarvie, B. M., and D. M. Jarvie, 2007 ...s that precipitate. This was also shown by the carbon isotopic analysis of calcite cements, by Pitman et al.,<ref name=Ptmn2001 /> that were shown to be deriv
  97 KB (14,873 words) - 19:53, 11 January 2024
• Phanerozoic Tethys region
  ...in the context of the evolution of the sea-water chemistry (aragonite vs. calcite sea, KCl vs. MgO₄ evaporites), the global sea-level curve, the m ...in the context of the evolution of the sea-water chemistry (aragonite vs. calcite sea, KCl vs. MgO₄ evaporites), the global sea-level curve, the m
  79 KB (11,542 words) - 18:47, 19 July 2016
• Vaca Muerta play
  ...hytoplankton and algal-bacterial origin. Cements are mainly represented by calcite, dolomite, and microgranular quartz<ref name=Ktzmn>Kietzmann D. A., F. Gonz ...rtz, and plagioclase grains; cements are microgranular quartz and granular calcite; mineralogy records 45% siliciclastic, 30% carbonate, 20% clay; porosity is
  77 KB (11,201 words) - 20:07, 15 January 2024
• Tools and techniques for studying mudstones
  ...specific types of sequence-stratigraphic surfaces. For example, calcite or calcite and pyrite are common below parasequence boundaries, dolomite with maximum ** Instant, vigorous effervescence of fresh surface indicates calcite.
  201 KB (28,634 words) - 17:31, 25 June 2024
• Shale-gas resource systems
  ...gh fractures may be present, they are usually healed with minerals such as calcite. Of course, having a brittle rock typically with a high silica content is a
  73 KB (10,728 words) - 18:16, 11 January 2024
• Appalachian Basin Marcellus gas play
  ...™, manufactured by Schlumberger) logs. Most observed natural fractures are calcite cemented and healed.
  89 KB (13,415 words) - 19:16, 16 January 2024

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