High-Magnesian Calcite: Leaching of Magnesium in the Deep Sea
1970; American Association for the Advancement of Science; Volume: 168; Issue: 3938 Linguagem: Inglês
10.1126/science.168.3938.1451
ISSN1095-9203
AutoresDavid N. Gomberg, Enrico Bonatti,
Tópico(s)Geological formations and processes
ResumoThe high-magnesian calcite fraction of a shallow-water carbonate sand was converted to low-magnesian calcite after transport to the deep sea; strontium was also leached from the carbonate. Oxygen isotopic ratios indicate that loss of magnesium and strontium took place during recrystallization of the carbonate in the deep sea; this process did not alter textures of skeletal fragments. Previously, high-magnesian calcite was thought only to dissolve in the deep sea.
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