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- ==Unusual authigenic minerals==5 KB (818 words) - 17:56, 17 February 2022
- ...expect, as well as what [http://dictionary.reference.com/browse/authigenic authigenic] clays might be present, can help us predict permeability. ==Effect of authigenic clays==9 KB (1,118 words) - 17:03, 6 April 2022
- ...ermeabilities is the occlusion of interstitial pore throats by detrital or authigenic clays or cement (see [[Rock-water reaction: formation damage]]). Thus, a pr ...verage permeabilities, and thus poor reservoir quality, to the presence of authigenic or detrital clays or cements.<ref name=pt06r82>Masters, J. A., 1984, Elm wo11 KB (1,444 words) - 21:26, 4 January 2024
- ...ess horizontal and usually cuts across stratigraphic units. It forms where authigenic minerals (usually calcite) fill the pore spaces. The '''bottom seal''' of r6 KB (811 words) - 17:58, 17 February 2022
- | Small pores mainly between detrital or authigenic clays; can also occur within grains (e.g., microporous [[chert]]) ...ion or cementation.<ref name=pt06r158>Wilson, M. D., Pittman, E. D., 1977, Authigenic clays in sandstones—recognition and influence on reservoir properties and18 KB (2,514 words) - 17:47, 21 January 2022
- ...re::90°C]]). Evidently, this temperature influences the development of authigenic materials. Quite possibly the zone of mineralization stays near the [[tempe5 KB (763 words) - 17:58, 17 February 2022
- ...ause it is difficult to estimate the relative abundance of detrital versus authigenic clay without thin section or scanning electron microscope data, care must b ...The existence of microporosity is suggested by the presence of detrital or authigenic clays in sandstones. Accurate laboratory or thin section determinations of13 KB (1,786 words) - 20:50, 19 January 2022
- * Authigenic kaolinite7 KB (870 words) - 20:30, 5 April 2022
- Injected water can also cause authigenic clays in the pores to swell and/or migrate. Injected water may react with i7 KB (1,011 words) - 16:57, 20 January 2022
- ...such as radiolarians, sponge spicules provides the major silica source for authigenic quartz formation that is favorable for both porosity preservation and britt7 KB (985 words) - 18:54, 4 December 2023
- ...ng the rock framework normally have little impact on rock-fluid reactions. Authigenic clays, however, line, fill, or bridge pores. They are exposed to extraneous Chemically initiated fines migration occurs when authigenic clays are contacted by fluid that17 KB (2,356 words) - 19:24, 19 January 2022
- ...ng the rock framework normally have little impact on rock-fluid reactions. Authigenic clays, however, line, fill, or bridge pores. They are exposed to extraneous Chemically initiated fines migration occurs when authigenic clays are contacted by fluid that (1) has an inadequate total cation (Na<su17 KB (2,380 words) - 18:23, 21 January 2022
- * authigenic http://dictionary.reference.com/browse/authigenic22 KB (3,024 words) - 21:42, 19 December 2014
- ...] [[quartz]] grains and [http://dictionary.reference.com/browse/authigenic authigenic] [[quartz]] overgrowths (cement) in sandstones.<ref name=pt05r80>Houseknech ...e, or discrete grains. [ http://dictionary.reference.com/browse/authigenic Authigenic] clay cements commonly precipitate as grain coatings, pore fillings, and gr24 KB (3,264 words) - 15:09, 24 January 2022
- ...ted in shales: AAPG Getting Started 20, 1198 p.</ref>. Where the resulting authigenic crystals are very small (< 2 μm), it may be difficult to unequivocally dif ...form and origin of each compositional component (e.g., detrital, biogenic, authigenic; [[:File:M126-MudstoneNom-Figure1.jpeg|Figure 1C]]). Examination of polishe58 KB (8,391 words) - 19:46, 20 February 2024
- ...ists as small pores (less than 2 μm) commonly associated with detrital and authigenic clay minerals. Dissolution porosity is the pore space formed from the parti24 KB (3,450 words) - 19:09, 20 January 2022
- ...e/detrital detrital] or [http://dictionary.reference.com/browse/authigenic authigenic] clays (very common) || Identify and map reservoir facies with the least de26 KB (3,674 words) - 21:21, 19 January 2022