Peat Deposits and Their Evidence of Climatic Changes
نویسندگان
چکیده
منابع مشابه
architecture and engineering of nanoscale sculptured thin films and determination of their properties
چکیده ندارد.
15 صفحه اولConstructing deposition chronologies for peat deposits using radiocarbon dating
Radiocarbon dating is one of the main methods used to establish peat chronologies. This article reviews the basis of the method and its application to dating of peat deposits. Important steps in the radiocarbon dating procedure are described, including selection and extraction of material (and fractions) for dating, chemical and physical preparation of media suitable for measurements, measureme...
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Turbidity Currents and Their Deposits
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متن کاملMorphological changes of rhizobia in peat cultures.
Morphological changes that take place in peat cultures of several species of rhizobia were examined. These changes seemed to be associated with enhanced survival of cells in peat and after inoculation onto plastic beads, which were used as a model system for seeds. Cell wall changes, in which the periplasmic space appeared to be occluded with electron-dense material, were observed in Rhizobium ...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1921
ISSN: 0006-8071
DOI: 10.1086/332893