Studies of Pollen and Spores in Rivers and Other Bodies of Water, in Terms of Source-Vegetation and Sedimentation, with Special Reference to Trinity River and Bay, Texas
Date1990 Oct 2
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The palynomorph load of various bodies of water shows a concentration in the order of 103/100 1 or less in marine water far from shore, 104 in most streams, 105 in some deltas and estuaries, 106 in a few exceptional cases of streams and lakes in flood stage. Studies of the Trinity River and Bay, Texas, show that relationships between palynomorph-load and the producing vegetation are complex, although some seasonality related to flowering peaks is evident. The sedimentary regime of the river is of critical importance in understanding the dynamics of palynomorph-load. This is demonstrated especially by recycling of extant pollen and spores, which repeatedly re-enter the stream load in times of peak flow, and by reworked palynomorphs that weather out of rocks in the drainage basin.
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