gusher
发表于 2025-3-28 15:31:13
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acrophobia
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似少年
发表于 2025-3-29 00:31:11
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易达到
发表于 2025-3-29 03:32:41
The Present Status of Understanding of the Long-Period Spectrum of Radiocarboned that a residual variability was related to solar physics through modulation of cosmic-ray (CR) activity. Willis . (1960) also recognized this, as well as the possibility of 150–200-year and 1000-year periods in the atmospheric inventory of radiocarbon. If the CR flux were constant, the atmospheri
Endearing
发表于 2025-3-29 07:47:10
Reconstruction of Radiocarbon Distribution in the Glacial Oceanic foraminifera that live in near-surface waters produce calcite shells that contain .C derived from water that is close to equilibrium with the atmosphere. These shells eventually sink to the sea floor and provide valuable materials for dating deep-sea sediments. The rain rate of calcite can thus b
混合物
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lavish
发表于 2025-3-29 16:03:46
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CURT
发表于 2025-3-29 23:23:11
978-1-4757-4251-0Springer Science+Business Media New York 1992
易改变
发表于 2025-3-30 01:24:34
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构成
发表于 2025-3-30 04:20:19
https://doi.org/10.1007/978-1-4757-4249-7archaeology; carbon; climate change; earthquake; environment; evolution; gas; geoscience; hydrology; iron; mas