Evidence of Ostwald ripening related recrystallization of diagenetic chlorites from reservoir rocks offshore Norway

@article{Jahren1991EvidenceOO,
  title={Evidence of Ostwald ripening related recrystallization of diagenetic chlorites from reservoir rocks offshore Norway},
  author={Jens Jahren},
  journal={Clay Minerals},
  year={1991},
  volume={26},
  pages={169 - 178}
}
  • J. Jahren
  • Published 1 June 1991
  • Materials Science
  • Clay Minerals
Abstract Chemical variations in individual chlorite crystals of diagenetic origin delineated by energy dispersive X-ray spectroscopy (EDS) in a transmission electron microscope (TEM) indicate a temperature dependent chemical zonation in each grain. Silicon decreases and Al increases with higher temperature resulting in a decreasing Si/Al ratio away from the crystal core reflecting the time and rate of the crystal growth. Chlorite particle-size distributions obtained by scanning electron… 

Diagenetic Illite-Chlorite Assemblages in Arenites. I. Chemical Evolution

Authigenic chlorites and illites coexisting in clastic reservoir sandstones have been studied by energy dispersive X-ray spectroscopy (EDS) in the transmission electron microscope (TEM). All 16

Ripening and recrystallization of NaCl nanocrystals in humid conditions

This study shows that Ostwald ripening, a universal mechanism responsible for the increase of crystal size during precipitation from solutions, can be meditated by ion diffusion through condensed

The Chemical Composition of Serpentine/Chlorite in the Tuscaloosa Formation, United States Gulf Coast: EDX vs. XRD Determinations, Implications for Mineralogic Reactions and the Origin of Anatase

The chemical composition of mixed-layer serpentine/chlorite (Sp/Ch) in Tuscaloosa Formation sandstone was analyzed by energy dispersive X-ray spectroscopy (EDX) in the scanning electron miscroscope

A nanopetrographic and textural study of grain-coating chlorites in sandstone reservoirs

Abstract Scanning electronic microscopy (SEM) and transmission electronic microscopy (TEM) investigations of chlorite grain coatings from four different sandstone reservoirs indicate a progressive

Chlorite Geothermometry: A Review

Chlorite minerals, found in a great variety of rocks and geological environments, display a wide range of chemical compositions and a variety of polytypes, which reflect the physicochemical

Some Comments on the Chemistry and Stability of Interstratified Illite-Smectite and the Role of Ostwald-Type Processes

Abstract Much emphasis has been placed recently on the role of Ostwald-type processes (both ripening and the step rule) in the formation of interstratified illite-smectite clay minerals during

Crystal-size distributions of clays during episodic diagenesis: The Salton sea geothermal system

Crystal-size distributions (CSDs) for clay minerals with depth were measured from the Salton Sea Geothermal Field (SSGF) as a test for the presence and meaning of theoretical crystal-size

A new chlorite geothermometer for diagenetic to low-grade metamorphic conditions

The evolution of chlorite composition with temperature (and pressure) serves as basis to a number of chlorite chemical thermometers, for which the oxidation state of iron has been recognised as a

DIAGENETIC ILLITE-CHLORITE ASSEMBLAGES IN ARENITES. I. C H E M I C A L E V O L U T I O N

-Authigenic chlorites and illites coexisting in clastic reservoir sandstones have been studied by energy dispersive X-ray spectroscopy (EDS) in the transmission electron microscope (TEM). All 16

References

SHOWING 1-10 OF 26 REFERENCES

Compositional variations in diagenetic chlorites and illites, and relationships with formation-water chemistry

Abstract Authigenic illites and chlorites from clastic reservoirs, offshore Norway, have been studied by analytical transmission electron microscopy (ATEM). Present-day reservoir conditions range

Authigenic layer silicate minerals in borehole Elmore 1, Salton Sea Geothermal Field, California, USA

A combined petrographic/X-ray/electron microprobe and energy dispersive system investigation of sandstone cuttings from borehole Elmore # 1 near the center of the Salton Sea Geothermal Field has

Cation site occupancy in chlorites and illites as a function of temperature

Abstract The relationships between the composition and the crystallization temperature of chlorites and illites have been investigated in different geothermal fields and in particular the Los Azufres

A six-component chlorite solid solution model and the conditions of chlorite formation in hydrothermal and geothermal systems

A unique definition of the physico-chemical conditions of formation of hydrothermal ore deposits is commonly difficult to achieve and the chlorite solid solution model is being developed to assist in