Hostname: page-component-77c89778f8-m42fx Total loading time: 0 Render date: 2024-07-23T11:01:09.487Z Has data issue: false hasContentIssue false
  • English
  • Français

Swelling Chlorite in a Soil of the Dominican Republic

Published online by Cambridge University Press:  01 July 2024

C. I. Rich  and
Juan A. Bonnet
C. I. Rich
Affiliation:
Agronomy Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia Soils Department, Agricultural Experiment Station, University of Puerto Rico, Rio Piedras, Puerto Rico
Juan A. Bonnet
Affiliation:
Agronomy Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia Soils Department, Agricultural Experiment Station, University of Puerto Rico, Rio Piedras, Puerto Rico
Get access Rights & Permissions [Opens in a new window]

Abstract

A 1–0·2 μm fraction from a soil in the Dominican Republic was studied by X-ray diffraction combined with solvation, cation saturation, and heat treatments. I.R., thermal (DTA, TGA) and chemical analyses were also made. This soil is saline and alkaline and its mineral composition is greatly influenced by the lacustrine parent material and poor drainage.

In addition to swelling chlorite, illite, kaolinite, carbonates and quartz are present in the 1–0·2 μm fraction. The swelling chlorite expanded to over 18 Å when Mg saturated and solvated with glycerol or water. Lower spacings with other cations and ethylene glycol were observed. 1 N HCl treatment partially removed the interlayer hydroxides in the chlorite and 6 N HCl destroyed the mineral. The mineral gave a reflection close to 14 Å up through 600°C but collapsed at higher temperatures to 10·2 Å.

Type
Research Article
Information
Clays and Clay Minerals , Volume 23 , Issue 2 , April 1975 , pp. 97 - 102
Copyright
Copyright © 1975, The Clay Minerals Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bernas, B., (1968) A new Method for decomposition and comprehensive analysis of silicate by atomic absorption spectrometry Anal. Chem. 40 1682–1686.10.1021/ac60267a017CrossRefGoogle Scholar
Bradley, W. F., (1953) Analysis of mixed-layer clay mineral structures Anal Chem. 25 727–730.10.1021/ac60077a012CrossRefGoogle Scholar
Brindley, G. W. and Brown, G., (1961) Chlorite minerals The X-ray identification and crystal structures of clay minerals London Mineralogical Society 242–296.Google Scholar
Honeyborne, D. B., (1951) Clay minerals in the Keuper marl Clay Miner. Bull. 1 150–155.10.1180/claymin.1951.001.5.05CrossRefGoogle Scholar
Lippmann, F., (1956) Clay minerals from the roth member of the triassic near Gottingen, Germany J. sedim. Petrol. 26 125–129.CrossRefGoogle Scholar
Martin Vivaldi, J. L. and MacEwan, D. M. C., (1960) Corrensite and swelling chlorite Clay Miner. Bull. 4 173–181.10.1180/claymin.1960.004.24.02CrossRefGoogle Scholar
Reichen, L. E. and Fahey, J. J., (1962) An improved method for the determination of FeO in rocks and minerals including garnet Contr. Geochem., U.S. Geological Survey Bull. 1144.Google Scholar
Rich, C. I., (1957) Determination of the (060) reflections of clay minerals by means of a counter type X-ray diffraction instrument Am. Miner. 42 569–570.Google Scholar
Rich, C. I., (1961) Calcium determination for cation-exchange measurements Soil Sci. 92 226–231.10.1097/00010694-196110000-00002CrossRefGoogle Scholar
Rich, C. I., (1969) Suction apparatus for mounting clay specimens on ceramic tile for X-ray diffraction Soil Sci. Soc. Am.Proc. 33 815–816.CrossRefGoogle Scholar
Shimoda, S., (1970) An expandable chlorite-like mineral from the Hanaoka mine, Akia Prefecture, Japan Clay Miner. Bull. 3 352–360.10.1180/claymin.1970.008.3.14CrossRefGoogle Scholar
Stephen, I. and MacEwan, D. M. C., (1951) Some chloritic clay minerals of unusual type Clay Miner. Bull. 1 157–161.10.1180/claymin.1951.001.5.06CrossRefGoogle Scholar