Temperature Variations in the Lower Pleistocene of Southern California
1953; University of Chicago Press; Volume: 61; Issue: 2 Linguagem: Inglês
10.1086/626064
ISSN1537-5269
AutoresCesare Emiliani, Samuel Epstein,
Tópico(s)Isotope Analysis in Ecology
ResumoThe $$O^{18}/O^{16}$$ analysis of the $$C_aCO_3$$ of fossil Foraminifera shells is applied to the study of paleotempera-tures and thermic variations in the Lower Pleistocene Lomita marl of southern California. Temperatures of shallow waters varied from 12° to 30° C, with one main period of colder and one of warmer temperatures. These variations are thought to have been produced mostly by interaction of marine currents and local tectonics.
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