不法行为
发表于 2025-3-26 22:17:27
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enormous
发表于 2025-3-27 04:47:03
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minaret
发表于 2025-3-27 05:44:59
Organic Compounds in Lake Sediments,ds is largely a product of the past 15 years and has paralleled the development of modern analytical techniques such as combined gas chromatography-mass spectrometry. Although the identification of optical and geometric isomers needs more study, much progress has already been made in relating sedime
AVERT
发表于 2025-3-27 13:14:54
Radionuclide Limnochronology,s. Their utility in the field of oceanography, meteorology, hydrology, and related fields has been well documented (Eriksson, 1962; Lal, 1963; Sheppard, 1963; Broecker, 1963, 1965; Lal and Suess, 1968; Lal, 1969; Machta, 1974; Fitch .., 1974; Goldberg and Bruland, 1974; Oeschger and Gugelmann, 1974;
粘
发表于 2025-3-27 16:09:07
The Mineralogy and Related Chemistry of Lake Sediments,its surrounding surface and ground water drainage basins. Of course, lake bottoms have long been recognized as the depositional site of both mineral and organic matter that is transported to the lake from the drainage basin, as well as matter which forms and settles from within the water body proper
grandiose
发表于 2025-3-27 21:10:56
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不自然
发表于 2025-3-27 23:28:02
Freshwater Carbonate Sedimentation,ater chemistry, and biological activity limits generalizations about mechanisms of carbonate sedimentation. On the whole, in constrast to an oceanic environment, the bulk of primary lacustrine carbonates are inorganic chemical precipitates. Two distinctly different geological settings can be recogni
infatuation
发表于 2025-3-28 04:48:03
Stable Isotope Studies of Lakes,(.H/.H, usually written D/H), carbon (.C/.C), nitrogen (.N/.N) oxygen (.O/.O), and sulfur (.S/.S) have been used or have potential use in studies of various aspects of lakes. We give here a general overview of the processes which bring about changes in stable isotope ratios, using studies of lakes a
NATAL
发表于 2025-3-28 07:19:58
Chemical Models of Lakes,s sediments represent an open system which interacts with its environment (that is, with the drainage basin and the atmosphere) in different ways by exchanging energy and matter. Since some of the most important chemical transformations in the system are linked to biological processes such as photos
Adjourn
发表于 2025-3-28 10:41:34
only in exceptional circumstances take to the barricades, he underscored what anthropologists had been discovering whenever they studied social movements: to understand collective action, the political and “grievances” focuses will not do. It is impossible to analyze social movements if one confine