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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

Published online by Cambridge University Press:  28 February 2024

P. C. Ryan  and
R. C. Reynolds Jr.
P. C. Ryan*
Affiliation:
Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755
R. C. Reynolds Jr.
Affiliation:
Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755
*
†Current address: Environmental Science Program, Salish-Kootenai College, Pablo, Montana 59855.
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Abstract

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 (SEM) and by X-ray diffraction (XRD). EDX results indicate little depth-controlled variation in composition, whereas XRD results suggest distinct decreases in octahedral Fe and tetrahedral Al. XRD-determined compositions appear to be erroneous and actually reflect progressive changes in Sp/Ch unit-cell dimensions caused by polytype transformations of Ibb layers to Iaa layers in a mixed-layer Ibb/Iaa polytype. The relative lack of variation in Sp/Ch composition, especially when compared to other studies of chlorite minerals over similar temperature ranges, is attributed to a reaction mechanism whereby mineralogic transformations (serpentine layers to chlorite layers and Ibb layers to Iaa layers) occur on a layer-by-layer basis within coherent crystallites, rather than by dissolution-precipitation crystal growth.

The lack of titanium in chlorite minerals is attributed to high levels of octahedral Al3+ that prohibit inclusion of the highly charged Ti4+ in the octahedral sheet. Anatase (TiO2) in the Tuscaloosa Formation apparently formed when Ti was liberated during crystallization of Sp/Ch following the breakdown of a Ti-bearing precursor (detrital ultramafic clasts and/or odinite). Odinite, an Fe-rich 7-Å phyllosilicate that forms in some shallow marine sands, apparently existed as a short-lived, poorly crystallized intermediary between dissolution of the ultramafic clasts and formation of Sp/Ch.

Keywords

AnataseChemical CompositionDiagenesisSandstoneSerpentine/ChloriteTuscaloosa Formation
Type
Research Article
Information
Clays and Clay Minerals , Volume 45 , Issue 3 , June 1997 , pp. 339 - 352
Copyright
Copyright © 1997, The Clay Minerals Society

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References

Abrecht, J. and Hewitt, D.A., (1988) Experimental evidence on the substitution of Ti in biotite Am Mineral 73 73–1284.Google Scholar
Ahn, J.H. and Peacor, D.R., (1985) Transmission electron microscopic study of diagenetic chlorite in Gulf Coast argillaceous sediments Clays Clay Miner 33 33–237 10.1346/CCMN.1985.0330309.CrossRefGoogle Scholar
Al-Dahan, A.A. and Morad, S., (1986) Chemistry of detrital biotites and their phyllosilicate intergrowths in sandstones Clays Clay Miner 34 34–548.Google Scholar
Alford, E.V., (1983) Compositional variations of authigenic chlorites in the Tuscaloosa Formation, Upper Cretaceous of the Gulf Coast Basin [M.S. thesis] New Orleans, LA Univ. of New Orleans.Google Scholar
Annerston, H., (1968) A mineral chemical study of a metamorphosed iron formation in northern Sweden Lithos 1 1–397 10.1016/S0024-4937(68)80030-1.Google Scholar
Bachinski, S.W. and Simpson, E.L., (1984) Ti-phlogopites of the Shaw’s Cove Minette: A comparison with micas of other lamprophyres, potassic rocks, kimberlites and mantle xenoliths Am Mineral 69 41–56.Google Scholar
Bailey, S.W., (1972) Determination of chlorite compositions by X-ray spacings and intensities Clays Clay Miner 20 20–388 10.1346/CCMN.1972.0200606.CrossRefGoogle Scholar
Bailey, S.W., (1988) Odinite, a new dioctahedral-trioctahedral Fe3+-rich 1:1 clay mineral Clay Miner 23 23–247 10.1180/claymin.1988.023.3.01.CrossRefGoogle Scholar
Bailey, S.W. and Bailey, S.W., (1988) Chlorites: Structures and crystal chemistry Hydrous phyllosilicates (exclusive of micas), Rev Mineral 19 Washington, DC Mineral Soc Am. 347–403 10.1515/9781501508998-015.CrossRefGoogle Scholar
Bailey, S.W. Banfield, J.F. and Barker, W.W., (1995) Dozyite, a 1:1 regular interstratifiaction of serpentine and chlorite Am Mineral 80 65–77 10.2138/am-1995-1-207.CrossRefGoogle Scholar
Brigatti, M.F. Poppi, L. and Fabbri, A., (1991) Corrensites: genetic relationships assessed by multivariate statistical analysis Bull Mineral 109 109–553.Google Scholar
Brindley, G.W. and Brown, G., (1961) Chlorite minerals The X-ray identification and crystal structures of clay minerals London Mineral Soc. 242–296.Google Scholar
Brindley, G.W., (1982) Chemical composition of berthierines—A review Clays Clay Miner 30 30–155.CrossRefGoogle Scholar
Brown, G. and Bailey, S.W., (1962) Chlorite polytypism: I. Regular and semi-random one-layer structures Am Mineral 47 47–850.Google Scholar
Cathelineau, M., (1988) Cation site occupancy in chlorites and illites as a function of temperature Clay Miner 23 23–485 10.1180/claymin.1988.023.4.13.CrossRefGoogle Scholar
Cathelineau, M. and Nieva, D., (1985) A chlorite solid solution geothermometer: The Los Azufres (Mexico) geothermal system Contrib Mineral Petrol 91 91–244 10.1007/BF00413350.CrossRefGoogle Scholar
Chagnon, A. and Desjardins, M., (1991) Determination de la composition de la chlorite par diffraction et microanalyse aux rayons X Can Mineral 29 245–254.Google Scholar
Curtis, C.D. Ireland, B.J. Whiteman, J.A. Mulvaney, R. and Whittle, C.K., (1984) Authigenic chlorites: Problems with chemical analysis and structural formula calculation Clay Miner 19 19–481.CrossRefGoogle Scholar
de Caritat, P. Hutcheon, I. and Walshe, J.L., (1993) Chlorite geothermometry: A review Clays Clay Miner 41 41–239 10.1346/CCMN.1993.0410210.CrossRefGoogle Scholar
Deer, W.A. Howie, R.A. and Zussman, J., (1992) An introduction to the rock-forming minerals 2nd ed. New York J Wiley.Google Scholar
Eberl, D.D. Srodon, J. Kralik, M. Taylor, B.E. and Peterman, Z.E., (1990) Ostwald ripening of clays and metamorphic minerals Science 248 248–477 10.1126/science.248.4954.474.CrossRefGoogle Scholar
Eggleton, R.A. and Banfield, J.F., (1985) The alteration of granitic biotite to chlorite Am Mineral 70 70–910.Google Scholar
Ehrenberg, S.N., (1993) Preservation of anomolously high porosity in deeply buried sandstones by grain-coating chlorite examples from the Norwegian Continental Shelf Am Assoc Petrol Geol Bull 77 77–1286.Google Scholar
von Engelhardt, W., (1942) Die Structuren von Thuringit, Bavalit, und Chamosit und ihre Stellung in der Chloritgruppe Z Kristallogr 104 142–159.CrossRefGoogle Scholar
Forbes, W.C. and Flower, M.F.J., (1974) Phase relations of titan-phlogopite, K2Mg4TiAl2Si6O20(OH)4: A refractory phase in the upper mantle? Earth Planet Sci Lett 22 60–66 10.1016/0012-821X(74)90064-8.CrossRefGoogle Scholar
Foster, M.D., (1962) Interpretation of the composition and a classification of the chlorites US Geol Survey Prof Paper 414–A 1–33.Google Scholar
Guidotti, C.V. and Bailey, S.W., (1984) Micas in metamorphic rocks Micas, Rev Mineral 13 Washington, DC Mineral Soc Am. 357–467.Google Scholar
Guidotti, C.V. Cheney, J.T. and Guggenheim, S., (1977) Distribution of titanium between coexisting muscovite and biotite in pelitic schists from Northwestern Maine Am Mineral 62 62–448.Google Scholar
Hamlin, K.H. and 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. and Anderegg, R.C., (1960) Differential cementation in the Tuscarora sandstone J Sed Petrol 30 30–577 10.1306/74D70AA1-2B21-11D7-8648000102C1865D.CrossRefGoogle Scholar
Hearne, J.H. and 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 35–393.Google Scholar
Hillier, S., (1994) Pore-lining chlorites in siliciclastic reservoir sandstones: Electron microscope, SEM, and XRD data, and implications for their origin Clay Miner 29 665–679 10.1180/claymin.1994.029.4.20.CrossRefGoogle Scholar
Hillier, S. and Velde, B., (1991) Octahedral occupancy and chemical composition of diagenetic (low-temperature) chlorites Clay Miner 26 26–168 10.1180/claymin.1991.026.2.01.CrossRefGoogle Scholar
Hogg, M.D., (1988) Newtonia Field: A model for mid-dip Lower Tuscaloosa retrograde deltaic sedimentation Trans Gulf Coast Assoc Geol Soc 38 38–471.Google Scholar
Hornibrook, E.R.C. and Longstaffe, F.J., (1996) Berthierine from the Lower Cretaceous Clearwater Formation, Alberta, Canada Clays Clay Miner 44 1–21 10.1346/CCMN.1996.0440101.CrossRefGoogle Scholar
Hunter, B.E. and Davies, D.K., (1979) Distribution of volcanic sediments in the Gulf Coast Province—Significance to petroleum geology Trans Gulf Coast Assoc Geol Soc 29 29–155.Google Scholar
Iijima, A. and Matsumoto, R., (1982) Berthierine and chamosite in coal measures of Japan Clays Clay Miner 30 30–274 10.1346/CCMN.1982.0300403.CrossRefGoogle Scholar
Jahren, J.S., (1991) Evidence of Ostwald ripening related recrystallization of diagenetic chlorites from reservoir rocks offshore Norway Clay Miner 26 26–178 10.1180/claymin.1991.026.2.02.CrossRefGoogle Scholar
Jahren, J.S. and Aagaard, P., (1989) Compositional variations in diagenetic chlorites and illites, and their relationships with formation water chemistry Clay Miner 24 157–170 10.1180/claymin.1989.024.2.04.CrossRefGoogle Scholar
Jahren, J.S. and Aagaard, P., (1992) Diagenetic illite-chlorite assemblages in arenites: I. Chemical evolution Clays Clay Miner 40 40–546 10.1346/CCMN.1992.0400507.CrossRefGoogle Scholar
James, H.L., (1966) Chemistry of the iron-rich sedimentary rocks US Geol Survey Prof Paper 440-W .CrossRefGoogle Scholar
Jiang, W.-T. Peacor, D.R. and Buseck, P.R., (1994) Chlorite geothermometry?—Contamination and apparent octahedral vacancies Clays Clay Miner 42 42–605.CrossRefGoogle Scholar
Jiang, W.-T. Peacor, D.R. and Slack, J.F., (1992) Microstructures, mixed-layering, and polymorphism of chlorite and retrograde berthierine in the Kidd Creek massive sulfide deposit, Ontario Clays Clay Miner 40 501–514 10.1346/CCMN.1992.0400503.CrossRefGoogle Scholar
Kepezhinskas, K.B., (1965) Composition of chlorites as determined from their physical properties Dokl Akad Nauk S.S.S.R, Earth Sci Sect 164 126–129.Google Scholar
Labotka, T.C., (1983) Analysis of the compositional variation of biotite in pelitic hornfelses from Northeastern Minnesota Am Mineral 68 68–914.Google Scholar
Laird, J. and Bailey, S.W., (1988) Chlorites: Metamorphic petrology Hydrous phyllosilicates (exclusive of micas), Rev Mineral 19 Washington, DC Mineral Soc Am. 405–447 10.1515/9781501508998-016.CrossRefGoogle Scholar
Li, G. and Peacor, D.R., (1993) Sulfides precipitated in chlorite altered from detrital biotite: A mechanism for local sulfate reduction? Abstr Progr Geol Soc Am Annu Meet 25 146–147.Google Scholar
McDowell, S.M. and Elders, W.A., (1980) Authigenic layer silicate minerals in borehole Elmore #1, Salton Sea Geothermal Field California Contrib Mineral Petrol 74 293–310 10.1007/BF00371699.CrossRefGoogle Scholar
Monier, G. and Robert, J.L., (1986) Titanium in muscovites from two mica granites: Substitutional mechanism and partition with coexisting biotites Neues Jarbuch fuer Mineralogie, Abhandlungen 153 147–161.Google Scholar
Morad, S., (1986) SEM Study of authigenic rutile, anatase, and brookite in Proterozoic sandstones from Sweden Sed Geol 46 77–89 10.1016/0037-0738(86)90007-2.CrossRefGoogle Scholar
Nelson, B.W. and Roy, R., (1958) Synthesis of the chlorites and their structural and chemical constitution Am Mineral 43 43–725.Google Scholar
Newman, A.C.D., (1987) Chemistry of clays and clay minerals New York J Wiley.Google Scholar
Odin, G.S., (1990) Clay mineral formation at the continent-ocean boundary: The verdine facies Clay Miner 25 25–483 10.1180/claymin.1990.025.4.06.CrossRefGoogle Scholar
Otten, M.T. and Buseck, P.R., (1987) TEM study of the transformation of augite to sodic pyroxene in eclogitized ferrogabbro Contrib Mineral Petrol 96 96–538 10.1007/BF01166698.CrossRefGoogle Scholar
Patino Douce, A.E., (1993) Titanium substitution in biotite: An empirical model with applications to thermometry, O2 and H2O barometries, and consequences for biotite stability Chem Geol 108 133–162 10.1016/0009-2541(93)90321-9.CrossRefGoogle Scholar
Pittman, E.D. and Lumsden, D.N., (1968) Relationship between chlorite coatings on quartz grains and porosity, Spiro Sand, Oklahoma J Sed Petrol 38 668–670 10.1306/74D71A28-2B21-11D7-8648000102C1865D.CrossRefGoogle Scholar
Reynolds, R.C. Jr., (1985) NEWMOD—A computer program for the calculation of one-dimensional diffraction profiles of clays Hanover, New Hampshire RC Reynolds.Google Scholar
Reynolds, R.C. Jr DiStefano, M.P. and Lahann, R.W., (1992) Randomly interstratified serpentine/chlorite: Its detection and quantification by powder X-ray diffraction methods Clays Clay Miner 40 40–267 10.1346/CCMN.1992.0400106.CrossRefGoogle Scholar
Ryan, P.C., (1994) Serpentine/chlorite and illite/smectite in the Tuscaloosa Formation: Origins, chemistry, mineralogic structures, and oxygen isotope compositions [Ph.D. thesis] Hanover, NH Dartmouth College 10.1349/ddlp.1427.CrossRefGoogle Scholar
Ryan, P.C. and Reynolds, R.C. Jr., (1996) The origin and diagenesis of grain-coating serpentine-chlorite in Tuscaloosa Formation sandstone, U.S. Gulf Coast Am Miner 81 213–225 10.2138/am-1996-1-226.CrossRefGoogle Scholar
Schulze, D.G., (1982) The identification of soil iron oxide minerals by differential X-ray diffraction Soil Sci Soc Am J 45 45–440.Google Scholar
Shirozu, H., (1958) X-ray powder and cell dimensions of some chlorites in Japan, with a note on their interference colors Mineral J (Jpn) 2 209–223 10.2465/minerj1953.2.209.CrossRefGoogle Scholar
Shirozu, H., (1980) Cation distribution, sheet thickness, and O-OH space in trioctahedral chlorites—An X-ray and infrared study Mineral J (Jpn) 10 14–34 10.2465/minerj.10.14.CrossRefGoogle Scholar
Stancliffe, R.J. and Adams, E.R., (1986) Lower Tuscaloosa fluvial channel styles at Liberty Field, Amite County, Mississippi Trans Gulf Coast Assoc Geol Soc 36 305–313.Google Scholar
Thomsen, A., (1982) Preservation of porosity in the Deep Woodbine/Tuscaloosa Trend, Louisiana J Petrol Technol 34 1156–1162 10.2118/10137-PA.Google Scholar
Velde, B., (1989) Phyllosilicate formation in berthierine peloids and iron oolites Phanerozoic ironstones 46 3–8.Google Scholar
Velde, B. Raoult, J.-F. and Leikine, M., (1974) Metamorphosed berthierine pellets in mid-Cretaceous rocks from north-eastern Algeria J Sed Petrol 44 44–1280.Google Scholar
Walker, J.R. Hluchy, M.M. and Reynolds, R.C. Jr., (1988) Estimation of heavy atom content and distribution in chlorite using corrected X-ray powder diffraction intensities Clays Clay Miner 36 359–364 10.1346/CCMN.1988.0360411.CrossRefGoogle Scholar
Walker, J.R. and Thompson, G.R., (1990) Structural variations in illite and chlorite in a diagenetic sequence from the Imperial Valley, California Clays Clay Miner 38 315–321 10.1346/CCMN.1990.0380311.CrossRefGoogle Scholar
Whitney, P.R. and McClelland, J.M., (1983) Origin of biotite-horn-blende-garnet coronas between oxides and plagioclase in olivine metagabbros, Adirondack Region, New York Contrib Mineral Petrol 82 34–41 10.1007/BF00371173.CrossRefGoogle Scholar
Whittle, C.K., (1986) Comparison of sedimentary chlorite compositions by X-ray diffraction and analytical TEM Clay Miner 21 937–947 10.1180/claymin.1986.021.5.07.CrossRefGoogle Scholar
Wiygul, G.J. and Young, L.M., (1987) A subsurface study of the Lower Tuscaloosa Formation at Olive Field, Pike and Amity Counties, Mississippi Trans Gulf Coast Assoc Geol Soc 37 295–302.Google Scholar
Yau, Y.C. Peacor, D.R. and Essene, E.J., (1987) Authigenic anatase and titanite in shales from the Salton Sea geothermal field, California Neues Jarbuch fuer Mineralogie, Monatshefte 10 441–452.Google Scholar
Yoneyama, H. Haga, S. and Yamanaka, S., (1989) Photocatalytic activities of microcrystalline TiO2 incorporated in sheet silicates of clay J Phys Chem 93 93–4837 10.1021/j100349a031.CrossRefGoogle Scholar
Xu, H. and Veblen, D.R., (1993) Periodic and disordered interstratification and other microstructures in the chlorite-berthierine series [abstract] Abstr Progr Geol Soc Am Annu Meet 25 146.Google Scholar