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Pore-lining chlorites in siliciclastic reservoir sandstones: electron microprobe, SEM and XRD data, and implications for their origin

Published online by Cambridge University Press:  09 July 2018

S. Hillier
S. Hillier*
Affiliation:
Universität Bern, Geologisches Institut, Baltzerstrasse 1, Ch-3012 Bern, Switzerland
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Abstract

Pore-lining chlorites are often responsible for the preservation of porosity in deeply buried sandstones because they inhibit the formation of quartz overgrowths, but little is understood about when and how they form. Chemical analyses and XRD data indicate that there are at least two common types: Fe-rich, and Mg-rich. The Fe-rich examples occur as individual euhedral crystals, are invariably interstratified with 7 Å layers (probably berthierine) and form as the Ib β = 90° polytype at low temperatures. With increasing temperature, their chemistry changes, 7 Å layers are lost, crystal size increases, and eventually they transform to the high temperature IIb β = 97° polytype. The Mg-rich examples occur as boxwork arrangements of crystals, are not interstratified with 7 Å layers and are exclusively the IIb β = 97° polytype. The Fe-rich examples occur most frequently in sandstones that were deposited at the transition between marine and non-marine environments and the presence of Fe-rich oolites in many samples suggests a link to the ironstone facies. They probably formed originally at surface or near-surface conditions as a 7 Å mineral, such as berthierine or even odinite, in a fresh water/marine water mixing zone in tropical regions. The Mg-rich varieties tend to be found in aeolian or sabkha sandstones in close association with evaporites. They are probably replacements of Mg-rich smectites via the intermediate mineral corrensite. Precursor Mg-rich smectites formed originally from evaporite brines at near-surface conditions; chlorite itself was not formed until temperatures were high enough to crystallize the IIb β = 97° polytype.

Type
Research Article
Information
Clay Minerals , Volume 29 , Issue 4 , October 1994 , pp. 665 - 679
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1994

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References

Ayalon, A. & Longstaff, F.J. (1988) Oxygen isotope studies of diagenesis and pore-water evolution in the Western Canada sedimentary basin: evidence from the Upper Cretaceous basal Belly River Sandstone, Alberta. J. Sed. Pet. 58, 489–505.Google Scholar
Bayliss, P. (1975) Nomenclature of the trioctahedral chlorites. Can. Miner. 13, 178–180.Google Scholar
Curtis, C.D., Hughes, C.R., Whiteman, J.A. & Whittle, C.K. (1985) Compositional variation within some sedimentary chlorites and some comments on their origin. Mineral. Mag. 49, 375–386.Google Scholar
Dixon, S.A., Summers, D.M. & Surdam, R.C. (1989) Diagenesis and preservation of porosity in Norphlet Formation (Upper Jurassic), southern Alabama. A.A.P.G. Bull. 73, 707–728.Google Scholar
Dutton, S.P. (1977) Diagenesis and porosity distribution in deltaic sandstone, Strawn series (Pennsylvanian), North- Central Texas. Trans. Gulf Coast Assoc. Geol. Soc. 27, 272–277.Google Scholar
Ehrenberg, S.N. (1991) Clay mineral studies at the geological laboratory, Statoil. Proc. 7th Euroclay Conf., Dresden, 319-322.Google Scholar
Ehrenberg, S.N. (1993) Preservation of anomalously high porosity in deeply buried sandstones by grain-coating chlorite: examples from the Norwegian continental shelf. A.A.P.G. Bull. 77, 1260–1286.Google Scholar
Gaupp, R., Matter, A., Plaqt, J., Ramseyer, K. & Walzebuck, J. (1993) Diagenesis and fluid evolution of deeply buried Permian Rotliegend gas reservoirs, Northwest Germany. A.A.P.G. Bull. 77, 1111–1128.Google Scholar
Hamlin, K.H. & Cameron, C.P. (1987) Sandstone petrology and diagenesis of lower Tuscaloosa Formation reservoirs in the McComb and Little Creek field areas, southwest Mississippi. Trans. Gulf Coast Assoc. Geol. Soc. 37, 95–104.Google Scholar
Heald, M.T. & Larese, R.E. (1974) Influence of coatings on quartz cementation. J. Sed. Pet. 44, 1269–1274.Google Scholar
Hearn, H.J. & Lock, B.E. (1985) Diagenesis of the lower Tuscaloosa as seen in the Dupont de Nemours #1 Lester Earnest, Harrison County, Mississippi. Trans. Gulf Coast Assoc. Geol. Soc. 35, 387–394.Google Scholar
Hillier, S. (1993) Origin, diagenesis and mineralogy of chlorite minerals in Devonian lacustrine mudrocks, Orcadian Basin, Scotland. Clays Clay Miner. 41, 240–59.CrossRefGoogle Scholar
Hillier, S. & Velde, B. (1991) Octahedral occupancy and the chemical composition of diagenetic (low temperature) chlorites. Clay Miner. 26, 149–168.CrossRefGoogle Scholar
Hillier, S. & Velde, B. (1992) Chlorite interstratified with a 7 A, mineral: an example from offshore Norway and possible implications for the interpretation of the composition of diagenetic chlorites. Clay Miner. 27, 475–486.Google Scholar
Horn, D. (1965) Diagenese und Porosität des Dogger-beta-Hauptsandsteines in den Ölfeldern PlönOst und Preetz. Erdöl und Kohle Erdgas Petrochemie 18, 249–255.Google Scholar
Houseknecnt, D. W. (1987) Thermal maturity and sandstone reservoir quality, Atoka Formation, Arkoma Basin. SEPM Mid-continent section, short course. Google Scholar
Imam, M.B. & Shaw, H.F. (1985) The diagenesis of Neogene clastic sediments from the Bengal Basin, Bangladesh. J. Sed. Pet. 55, 665-671.Google Scholar
Imam, M.B. & Shaw, H.F. (1987) Diagenetic controls on the reservoir properties of gas bearing Neogene Surma Group sandstones in the Bengal Basin, Bangladesh. Mar. Petrol. Geol. 4, 103–111.CrossRefGoogle Scholar
Jahren, J.S. (1991) Evidence of Ostwald ripening related recrystallization of chlorites from reservoir rocks offshore Norway. Clay Miner. 26, 169–178.CrossRefGoogle Scholar
Jahren, J.S. & Aagaard, P. (1989) Compositional variation in diagenetic chlorites and illites, and relationships with formation water chemistry. Clay Miner. 24, 157–170.CrossRefGoogle Scholar
Jahren, J.S. & Aagaard, P. (1992) Diagenetic illite-chlorite assemblages in arenites. 1. Chemical evolution. Clays Clay Miner. 40, 540–546.CrossRefGoogle Scholar
Janks, J.S., Yusas, M.R. & Hall, C.M. (1992) Clay mineralogy of an interbedded sandstone, dolomite, and anhydrite: the Permian Yates Formation, Winkler county, Texas. Pp. 145-157 in: Origin, Diagenesis and Petrophysics of Clay Minerals in Sandstones. (Houseknecht, D.W. & Pittman, E.D., editors) SEPM special publication No. 47.Google Scholar
Kugler, R.L. & Mchucn, A. (1990) Regional diagenetic variation in Norphlet Sandstone: implications for reservoir quality and the origin of porosity. Trans. Gulf Coast Assoc. Geol. Soc. 40, 411–423.Google Scholar
Land, L.S. & DUTTON (1978) Cementation of a Pennsylvanian Deltaic Sandstone: Isotopic data. J. Sed. Pet. 48, 1167–1176.Google Scholar
Larsen, O.H. & Friis, H. (1991) Petrography, diagenesis and pore-water evolution of a shallow marine sandstone (Halse Formation, Lower Jurassic, Bornholm, Denmark). Sed. Geol. 72, 269–284.Google Scholar
Longstaffe, F.J. (1986) Oxygen isotope studies of diagenesis in the basal Belly River Sandstone Pembina 1-Pool, Alberta. J. Sed. Pet. 56, 78–88.Google Scholar
Lumsden, D.N., Pittman, E.D. & Buchanan, R.S. (1971) Sedimentation and petrology of Spiro and Foster sands (Pennsylvanian) McAlester Basin, Oklahoma. A.A.P.G. Bull. 55, 254–266.Google Scholar
Odin, G.S. (1990) Clay mineral formation at the continentocean boundary: the verdine facies. Clay Miner. 25, 477–483.Google Scholar
Pittman, E.D. (1988) Diagenesis of Terry Sandstone (Upper Cretaceous) Spindle Field, Colorado. J. Sed. Pet. 58, 785–800.Google Scholar
Pittman, E.D., Lareses, R.E. & Heald, M.T. (1992) Clay coats: occurrence and relevance to preservation of porosity in sandstones. Pp. 241 & 255 in: Origin, Diagenesis and Petrophysics of Clay Minerals in Sandstones. (Houseknecht, D.W. & Pittman, E.D., editors) SEPM special publication No. 47.Google Scholar
Plart, I.D. (1993) Controls on clay mineral distribution and chemistry in the Early Permian Rotliegend of Germany. Clay Miner. 28, 393–416.Google Scholar
Purvls, K. (1990) The clay mineralogy of the upper Triassic Skagerrak formation, central North Sea. Proc. 9th Int. Clay Conf., Strasbourg, 125-134.Google Scholar
Porter, K.W. & Weimer, R.J. (1982) Diagenetic sequence related to structural history and petroleum accumulation: Spindle field, Colorado. A.A.P.G. Bull. 66, 2543–2560.Google Scholar
Reynolos, R.C. Jr., Di Sxefano, M.P. & Lahann, R.W. (1992) Randomly interstratified serpentine/chlorite: its detection and quantification by X-ray diffraction methods. Clays Clay Miner. 40, 262–267.Google Scholar
Stonecipher, S.A. & May, J.A. (1990) Facies controls on early diagenesis: Wilcox Group, Texas Gulf Coast. Pp. 25-44 in: Prediction of Reservoir Quality through Chemical Modelling (Meshri, I.D. & Ortoleva, P.J., editors) AAPG Memoir 49.Google Scholar
Sullivan, K.B. & Mcbride, E. (1991) Diagenesis of sandstones at shale contacts and diagenetic heterogeneity, Frio Formation Texas. A.A.P.G. Bull. 75, 121–138.Google Scholar
Tillman, R.W. & Almon, W.R. (1979) Diagenesis of Frontier Formation offshore bar sandstones Spearhead Ranch Field, Wyoming. Pp. 337-378 in: Aspects of Diagenesis (Scholle, P.A. & Schluger, P.R., editors). SEPM Special publication NO. 26.Google Scholar
Thomson, A. (1979) Preservation of porosity in the deep Woodbine/Tuscaloosa trend, Louisiana. Trans. Gulf Coast Assoc. Geol. Soc. 30, 396–403.Google Scholar
Tompkins, R.E. (1981) Scanning electron microscopy of a regular chlorite/smectite. Clays Clay Miner. 29, 233–235.CrossRefGoogle Scholar
Wiewrora, A. & Weiss, Z. (1990) Crystallochemical classifications of phyllosilicates based on the unified system of projection of chemical composition II. The chlorite group. Clay Miner. 25, 83–92.CrossRefGoogle Scholar
Wilson, M.D. & Pittman, E.D. (1977) Authigenic clays in sandstones: recognition and influence on reservoir properties and palaeoenvironmental analysis. J. Sed. Pet. 47, 3–31.Google Scholar
Zimmerle, W. (1963) Zu Petrographie und Diagenese des Dogger-beta-Hauptsandsteins im Erdolfeld Plon-Ost. Erdol und Kohle Erdgas Petrochemie. 16, 249–255.Google Scholar