Scanning electron micrographs of modern chrysomonad cysts from Castor Pond, Jemez Mountains, New Mexico
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Open-File Report↗
Geology topics
Peter J. Mehringer
Publications and source records attributed to Peter J. Mehringer.
Modern and Holocene chrysomonad cysts from Lost Trail Pass Bog, Montana
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Open-File Report↗
Modern pollen surface samples: An analysis of subsamples
Multiple subsamples of pollen samples obtained from the modern soil surface at two sites in southern Arizona were individually collected and analyzed to evaluate the practice of mixing subsamples when collecting modern surface samples. Results suggest that at least five subsamples must be mixed in order to avoid collecting a sample that is not representative of the local pollen rain.
Journal of Research of the U.S. Geological Survey↗