American Mineralogist; November 2006; v. 91; no. 11-12;
p. 1937-1940; DOI: 10.2138/am.2006.2391
© Mineralogical Society of America
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FIGURE 4. Atomic arrangements of Ca (filled circles) and C (smaller open circles) on the calcite {0
4} and {2
0} planes that are close to the bottom planes of the V- and R-units, respectively, and so are possibly in contact with the organic base plate. The {2
0} plane is viewed along the [100] direction. The directions of the coccolith rim are also shown as broken lines.
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