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COMPOSITION OF MAGNESIAN CALCITES OF ALGAE AND PELECYPODS BY ELECTRON MICROPROBE ANALYSIS 1
Author(s) -
MOBERLY RALPH
Publication year - 1968
Publication title -
sedimentology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 108
eISSN - 1365-3091
pISSN - 0037-0746
DOI - 10.1111/j.1365-3091.1968.tb00841.x
Subject(s) - calcite , electron microprobe , geology , algae , carbonate , calcareous , mineralogy , microprobe , sediment , botany , paleontology , chemistry , biology , organic chemistry
SUMMARY Electron microprobe analyses of skeletal carbonate structures in coralline algae and pelecypods show that the magnesian content of the calcite depends on skeletal growth rates. Growth rate is a function of certain variables, including water temperature, light, and physiological cycles. The Mg‐content of calcareous sediment from specific organisms is not, therefore, mainly dependent on water temperature, as is generally believed, but also on the other factors affecting growth.