Advertisement

Clays and Clay Minerals

, Volume 8, Issue 1, pp 228–236 | Cite as

A Mixed-Layer Clay Mineral Associated with an Evaporite

  • R. E. Grim
  • John B. Droste
  • W. F. Bradley
Article

Abstract

Clay partings in the ore beds in a New Mexico evaporite section include a range of mixed-layer clay mineral sequences of the corrensite type. Specimens range from nearly regular alternations to sequences which depart from regularity to moderate degrees. The ore bodies consist of halite, polyhalite, sylvite, magnesite, dolomite, carnallite, and iron oxides.

Observed x-ray diffraction effects from representative specimens are compared with synthesized effects for montmorillonite- or vermiculite-chlorite layer sequences.

It is concluded that the segregation of the abundant Mg interlayer content into specific, regularly spaced interlayers represents the equilibrium relationship between a mont-morillonite-chlorite or vermiculite-chlorite mixed assemblage and a mildly acid, Mg2+-, Na+, and K+ rich environment.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bradley, W. E. and Weaver, C. E. (1956) A regularly interstratified chlorite-vermiculite clay mineral: Amer. Min., v. 41, pp. 497–504.Google Scholar
  2. Garrels, R. M. and Howard, Peter (1959) Reactions of feldspar and mica with water at low temperature and pressure: in Clays and Clay Minerals, 6th Conf., Pergamon Press, New York, pp. 68–88.Google Scholar
  3. Lippman, Friedrich (1954) Über einen Keuperton von Zaisersweiher bei Maulbronn: Heidelberg Beitr. Min., v. 4, pp. 130–134.Google Scholar
  4. Schachtsehabel, P. (1940) Untersuchungen über die Sorption der Tonmineralien und organischen Bodenkolloide: Kolloid-Beihefte, v. 51, pp. 199–276.Google Scholar

Copyright information

© The Clay Minerals Society 1959

Authors and Affiliations

  • R. E. Grim
    • 1
  • John B. Droste
    • 2
  • W. F. Bradley
    • 3
  1. 1.University of IllinoisUrbanaUSA
  2. 2.Indiana UniversityBloomingtonUSA
  3. 3.Illinois Geological SurveyUrbanaUSA

Personalised recommendations