Abstract
The mineralogy of the Tertiary clay deposits in Makkah and Rabigh quadrangles was thoroughly investigated by X-ray diffraction and differential thermal and thermogravimetric analyses in addition to other techniques. Results show that the investigated samples are predominantly composed of montmorillonite (Ca++ and/or Mg++ rich variety) and kaolinite, associated with subordinate illite and minor chlorite. Mixed layer montmorillonite-illite is recorded only in two samples. The relative abundance of these minerals by X-ray diffraction analysis showed that the studied clay deposits are of three types. The first, which is the most common, is highly montmorillonitic, the second is made up of a mixture of montmorillonite followed by kaolinite and illite and the third is highly kaolinitic with some montmorillonite. Generally, kaolinite shows a southward increase in Makkah quadrangle while chlorite, as a minor component, shows a northward increase in Rabigh quadrangle.
Keywords
Subject
Publication details
- DOI
- 10.24200/squjs.vol7iss2pp259-277
- Journal
- Sultan Qaboos University Journal for Science, 7(2), 259
- Publisher
- Sultan Qaboos University
- Open access
- Gold open access
- License
- CC BY 4.0
Cite this article
APA 7
Basyoni, M. H., El Askary, M. A., Saad, N., & Taj, R. J. (2002). Mineralogy of the Tertiary Clay Deposits in Makkah and Rabigh Quadrangles, West Central Arabian Shield, Saudi Arabia. Sultan Qaboos University Journal for Science, 7(2), 259. https://doi.org/10.24200/squjs.vol7iss2pp259-277
MLA 9
Basyoni, Mohammed H., et al. "Mineralogy of the Tertiary Clay Deposits in Makkah and Rabigh Quadrangles, West Central Arabian Shield, Saudi Arabia." Sultan Qaboos University Journal for Science, vol. 7, no. 2, 2002, pp. 259. https://doi.org/10.24200/squjs.vol7iss2pp259-277.
Chicago (author–date)
Basyoni, Mohammed H., M. A. El Askary, N. Saad, and Rushdi J. Taj. 2002. "Mineralogy of the Tertiary Clay Deposits in Makkah and Rabigh Quadrangles, West Central Arabian Shield, Saudi Arabia." Sultan Qaboos University Journal for Science 7 (2): 259. https://doi.org/10.24200/squjs.vol7iss2pp259-277.
Harvard
Basyoni, M. H., El Askary, M. A., Saad, N. and Taj, R. J. (2002) 'Mineralogy of the Tertiary Clay Deposits in Makkah and Rabigh Quadrangles, West Central Arabian Shield, Saudi Arabia', Sultan Qaboos University Journal for Science, 7(2), pp. 259. doi:10.24200/squjs.vol7iss2pp259-277.
Vancouver
Basyoni MH, El Askary MA, Saad N, Taj RJ. Mineralogy of the Tertiary Clay Deposits in Makkah and Rabigh Quadrangles, West Central Arabian Shield, Saudi Arabia. Sultan Qaboos University Journal for Science. 2002;7(2):259. doi:10.24200/squjs.vol7iss2pp259-277
IEEE
M. H. Basyoni, M. A. El Askary, N. Saad, and R. J. Taj, "Mineralogy of the Tertiary Clay Deposits in Makkah and Rabigh Quadrangles, West Central Arabian Shield, Saudi Arabia," Sultan Qaboos University Journal for Science, vol. 7, no. 2, pp. 259, 2002, doi: 10.24200/squjs.vol7iss2pp259-277.