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Clay Minerals of the Outcropping Basal Cretaceous Beds Between the Cape Fear River, North Carolina, and Lynches River, South Carolina

Published online by Cambridge University Press:  01 January 2024

S. Duncan Heron Jr.
S. Duncan Heron Jr.*
Affiliation:
Department of Geology, Duke University, Durham, N.C., USA
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Abstract

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The basal Cretaceous beds of the area are subdivided into three units: the Cape Fear formation, Middendorf formation and Bladen member of the Black Creek formation. Stratigraphic position and lithology indicate that the Cape Fear is the oldest and the Middendorf is in part the landward facies of the Bladen. The Middendorf sediments are fluviatile and the Cape Fear and Bladen sediments are probably marine.

The Cape Fear and Bladen contain abundant montmorillonite, some kaolinite and lesser amounts of illite. In the Middendorf kaolinite predominates, although a few samples have small amounts of montmorillonite and illite.

Preliminary data indicate that in the Cretaceous-Tertiary sediments of the Atlantic Coastal Plain, montmorillonite occurs in abundance in the marine beds and kaolinite in the nonmarine sediments. The basal Cretaceous beds of the area studied fit into this scheme of clay mineral distribution.

The origin of the clay minerals of the Cretaceous formations studied is approached from sedimentary and empirical standpoints. The montmorillonite-marine and kaolinite-nonmarine associations strongly suggest that the montmorillonite has formed by marine diegenesis, whereas the sedimentary evidence suggests that the montmorillonite of the Cape Fear formation is detrital and the kaolinite of the Middendorf formation has formed by prolonged postdepositional weathering of a more varied clay mineral assemblage. The sediments of the Bladen unit in themselves offer little evidence as to the origin of their clay minerals. However, the predominance of kaolinite in the contemporary deltaic Bladen suggest that kaolinite was the only clay mineral supplied to the depositional area, and that in the marine part of the sedimentation area part of this kaolinite was changed to montmorillonite by marine diagnetic processes.

Type
Article
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 7 , February 1958 , pp. 148 - 161
Copyright
Copyright © Clay Minerals Society 1958

References

Anonymous (1958) Guidebook for a field excursion to northeastern Maryland and northern Delaware on the occasion of the Seventh National Conference on Clays and Clay Minerals: Natl. Acad. Sci— Natl. Res. Council, 43 pp.Google Scholar
Berry, E. W. (1914) The Upper Cretaceous and Eocene floras of South Carolina and Georgia: U.S. Geol. Survey, Prof. Paper 84, 200 pp.CrossRefGoogle Scholar
Cooke, C. W. (1936) Geology of the Coastal Plain of South Carolina: U.S. Geol. Surv. Bull. 867, 196 pp.Google Scholar
Dorf, Erling (1952) Critical analysis of Cretaceous stratigraphy and paleobotany of Atlantic Coastal Plain: Bull. Amer. Assoc. Petrol. Geologists, v. 36, pp. 2161–2184.Google Scholar
Fisk, E. N., McFarlan, E. Jr. and Kolb, C. R. (1954) Sedimentary framework of the modern Mississippi delta: J. Sed. Petrol., v. 24, pp. 76–99.CrossRefGoogle Scholar
Gilbert, C. M. (1954) Sedimentary rocks; in Williams, H. et al., Petrography, pp. 251–384. Freeman, San Francisco.Google Scholar
Groot, J. J. and Glass, H. D. (1959) Some aspects of the mineralogy of the Northern Atlantic Coastal Plain: This volume, p. 271,.CrossRefGoogle Scholar
Heron, S. D. Jr. (1958) History of terminology and correlations of the basal Cretaceous formations of the Carolinas: Bull. Division of Geology, State Development Board, Columbia, S.C., v. 2, pp. 77–88.Google Scholar
Keller, W. D. (1956) Clay minerals as influenced by environments of their formation: Bull. Amer. Assoc. Petrol. Geologists, v. 40, pp. 2689–2710.Google Scholar
Kesler, T. L. (1956) Environment and origin of the Cretaceous kaolin deposits of Georgia and South Carolina: Econ. Geol., v. 51, pp. 541–554.CrossRefGoogle Scholar
Murray, H. H. and Sayyab, A. S. (1955) Clay mineral studies of some Recent marine sediments off the North Carolina coast: in Clays and Clay Minerals, Natl. Acad. Sci. —Natl. Res. Council, pub. 395, pp. 430–441.Google Scholar
Pettijohn, F. J. (1957) Sedimentary Rocks (2nd Ed.): Harper, New York, 718 pp.Google Scholar
Powers, M. C. (1951) Cretaceous Black Creek deposits along the Cape Fear River: Unpublished Master's Thesis, University of North Carolina, Chapel Hill, N.C.Google Scholar
Powers, M. C. (1954) Clay diagenesis in the Cheseapeake Bay area: in Clays and Clay Minerals, Natl. Acad. Sci.—Natl. Res. Council, pub. 327, pp. 68–80.Google Scholar
Pryor, W. A. and Glass, H. D. (1958) Stratigraphic distribution of clay minerals in the Upper Mississippi Embayment sediments: Bull. Geol. Soc. Amer., v. 69, p. 1631. (Abstract.).Google Scholar
Reves, W. D. (1956) The clay minerals of the North Carolina Coastal Plain: Unpublished Master's Thesis, University of North Carolina, Chapel Hill, N.C.Google Scholar
Shepard, F. P. (1954) Nomenclature based on sand-silt-clay ratios: J. Sed. Petrol., v. 24, pp. 151–158.Google Scholar
Shepard, F. P. (1956) Marginal sediments of Mississippi Delta: Bull. Amer. Assoc. Petrol. Geologists, v. 40, pp. 2537–2623.Google Scholar
Siple, G. E., Brown, P. M. and LeGrand, H. E. (1956) Stratigraphic significance of Foraminifera from an outcrop of the Tuscaloosa formation at Cheraw, South Carolina: Bull. Geol. Soc. Amer., v. 67, pp. 1757–1758. (Abstract.).Google Scholar
Sloan, Earle (1904) A preliminary report on the clays of South Carolina: South Carolina Geol. Survey, Series 4, Bull. 1, 175 pp.Google Scholar
Sloan, Earle (1907) Geology and mineral resources: in Handbook of South Carolina, pp. 77–145, State Department of Agriculture, Commerce and Immigration, Columbia, S.C.Google Scholar
Stephenson, L. W. (1907) Some facts relating to the Mesozoic deposits of the Coastal Plain of North Carolina: Johns Hopkins Univ. Circ. (n.s.) no. 7, pp. 93–99.Google Scholar
Stephenson, L. W. (1912) The Cretaceous formations: in Clark, W. B. et al., The Coastal Plain of North Carolina, North Carolina Geol. and Econ. Survey, v. 3, pp. 73–147.Google Scholar
Stephenson, L. W. (1923) The Cretaceous formations of North Carolina: North Carolina Geol. and Econ. Survey, v. 5, 604 pp.Google Scholar
Stephenson, L. W. and Johnson, B. L. (1912) Water resources of the Coastal Plain of North Carolina: in Clark, W. B. et al., The Coastal Plain of North Carolina, North Carolina Geol. and Econ. Survey, v. 3, pp. 333–481.Google Scholar
Weaver, C. E. (1958) Geologic interpretation of argillaceous sediments. I. Origin and significance of clay minerals in sedimentary rocks: Bull. Amer. Assoc. Petrol. Geologists, v. 42, pp. 254–271.Google Scholar