. Collected reprints, Essa Institute for Oceanography. Oceanography ETHYLENE GLYCOL 5 7 A Sta 195 (0-5 cm) Sta 204 (40-43c Sta 209 (1-3cm Sta179 (0-13 cm) Sta 184 (0-6 cm). Fig. 14.—Typical X-ray diffraction patterns of clays from various parts of the Malacca Strait and adjacent Andaman Sea. 1963). Diffraction peaks at 7 and are attributed to kaolinite. Using a modification of the procedure described by Brindley (1961, p. 264), a representative number of the samples were placed in warm 8 N HC1 for two hours and then X-rayed to distinguish between kaolinite and chlorite.
. Collected reprints, Essa Institute for Oceanography. Oceanography ETHYLENE GLYCOL 5 7 A Sta 195 (0-5 cm) Sta 204 (40-43c Sta 209 (1-3cm Sta179 (0-13 cm) Sta 184 (0-6 cm). Fig. 14.—Typical X-ray diffraction patterns of clays from various parts of the Malacca Strait and adjacent Andaman Sea. 1963). Diffraction peaks at 7 and are attributed to kaolinite. Using a modification of the procedure described by Brindley (1961, p. 264), a representative number of the samples were placed in warm 8 N HC1 for two hours and then X-rayed to distinguish between kaolinite and chlorite. Broad, asymmetrical diffraction peaks varying between and after ethylene glycol solvation characterized the un- differentiated mixed-layer minerals. These con- sist of a complex grouping of three-layered min- erals interlayered with montmorillonite. It ap- pears that illite may be the significant mineral mixing with montmorillonite, although chlorite is undoubtedly also present. Diffraction peaks at 10, 5 and which are not affected by ethyl- ene glycol treatment are defined here as belong- ing to minerals of the illite group. A diffraction peak at as well as a slight reduction of the peak after acid treatment is used as evi- dence of chlorite. Typical X-ray patterns for samples from different regions of the Malacca Strait and Andaman Sea are shown in figure 14. A semi-quantitative determination was made utilizing the intensities of the X-ray peaks to study the clay-mineral distribution. The pro-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute for Oceanography; Atlantic Oceanographic Laboratories (U. S. ); Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories. Washington, D. C. : U. S. Dept. of Commerce, E
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