Some Naturally Occurring Illite-Smectite Interstratifications

L. Heller-Kallai and Z. H. Kalman
Department of Geology, Hebrew University, Jerusalem, Israel
Racah Institute of Physics, Hebrew University, Jerusalem, Israel

Abstract: Two different types of interstratified illite-smectite are found in a section of Paleozoic sediments in the Negev, Israel. One of these is detectable only by a decrease in peak width and a concomitant increase in symmetry of the 10 Å peak on glycolation. This material is regarded as illite, randomly interstratified with about 20 per cent expanding layers.

Clays and Clay Minerals; June 1972 v. 20; no. 3; p. 165-168; DOI: 10.1346/CCMN.1972.0200308
© 1972, The Clay Minerals Society
Clay Minerals Society (www.clays.org)