删减 发表于 2025-3-25 03:20:16
Ozone, Ultraviolet Flux and Temperature of the Paleoatmosphere,ng the Earth’s surface and affects the temperature of the surface and atmosphere. For these reasons, O. was an important species of the paleoatmosphere. Surface and atmospheric levels of paleoatmospheric O. were calculated using a detailed photochemical model, including the chemistry of the oxygen,DOLT 发表于 2025-3-25 09:37:43
http://reply.papertrans.cn/59/5862/586199/586199_22.pngIngest 发表于 2025-3-25 13:18:46
http://reply.papertrans.cn/59/5862/586199/586199_23.pngpreservative 发表于 2025-3-25 18:34:11
Sulphur Isotope Ratios in Late and Early Precambrian Sediments and Their Implications Regarding Earant of these processes occur in the biological sulphur cycle characterized by the activity of sulphur oxidizing and reducing microbiota. In particular, the dissimilatory reduction of sulphate to hydrogen sulphide by anaerobic bacteria leads to isotope effects of from 0 to ∼60‰, the magnitude of the射手座 发表于 2025-3-25 23:57:09
Antiquity and Evolutionary Status of Bacterial Sulfate Reduction: Sulfur Isotope Evidence,imentary δ. S patterns attributable to bacteriogenic sulfate reduction are generally absent. In particular, the δ. S spread observed in the Isua banded iron formation (3.7 × 10. yr) is extremely narrow and coincides completely with the respective spreads yielded by contemporaneous rocks of assumed mPrognosis 发表于 2025-3-26 01:49:53
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http://reply.papertrans.cn/59/5862/586199/586199_29.pngParadox 发表于 2025-3-26 20:06:50
Richard Y. Moritancountered in daily practice, several essentialpreconditions must be met. At the most basic level, the clinician mustknow the diagnostic criteria for each rhythm. Without a clearunderstanding of these criteria, an accurate differential diagnosis isimpossible, and without accurate diagnosis, correct