Sedimentary Environments in a Marine Marsh

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Science  23 Dec 1966:
Vol. 154, Issue 3756, pp. 1551-1553
DOI: 10.1126/science.154.3756.1551


Several foraminiferal assemblages are recognized in Spartina-Salicornia marshes along the Pacific and Gulf of Mexico coasts. Continuous recordings in one Pacific marsh show considerable diurnal and seasonal variation in pH, oxygen, water temperature, and salinity. This is related to tidal flushing, air temperature variations, sunlight duration, and marsh plant metabolism.