ANNUL
发表于 2025-4-1 04:30:26
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NATTY
发表于 2025-4-1 07:23:47
Magnetic spherules in recent lake sediments,agnetic spherules are distributed regionally and hence form widespread cryptic marker horizons in lacustrine sediments. Location of this horizon in a lake sediment profile provides an approximate dating method and this horizon may be located using susceptibility measurements corroborated by microscopic spherule counts.
讲个故事逗他
发表于 2025-4-1 12:31:30
Paleolimnology of Slapton Ley, Devon, UK,e uppermost sediments shows that the Ley has recently experienced a major shift in its trophic status, changing from a clear water, macrophyte lake to one dominated by plankton in a hypertrophic system. This last point is further amplified in the paper by Heathwaite & O’Sullivan (1991).
faucet
发表于 2025-4-1 16:32:19
,Edward Smith Deevey 1914–1988,y did not include the American Journal of Science, in which Ed had published his most important work. I had, however, been poking around the lakes and bogs of Nova Scotia for five years and was full of half-formed ideas about paleolimnology, climatic change, and the relevance of past climate to the