MICROFOSSILS FROM LATE PROTEROZOIC MANGANESE ORE DEPOSITS IN WESTERN HUNAN PROVINCE AND EASTERN GUIZ

来源 :中国科学:化学英文版 | 被引量 : 0次 | 上传用户:pjpdl6123475
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Abundant microfossils and organic residuals have been discovered by SEM and normal palynological maceration from manganese ore beds intercalated in late Proterozoic glacial rock units in western Hunan Province and eastern Guizhou Province. Taking isotopic
其他文献
A preliminary report on in vitro sperm capacitation and egg-penetration of giant panda is briefly presented. The panda spermatozoon consists of head, neck and t
A new tetradecapeptide, ranamargarin, has been isolated by Sep-Pak C<sub>18</sub> and HPLC from methanol extracts of the skin of the Chinese frogRana margaratae
LegHb mRNAs isolated from 2 to 10-week old alfalfa nodules are actively translated in vitro to give a full component of legHb products suggesting that legHb gen
In order to elucidate the origin of biological ordering structure, which is far from equi-librum and continuously exchanges substances with its environment, I.
期刊
Based on the improved statistics model of breaking waves, we have calculated the following statistical quantities: S_t, breaking area ratio generated per unit t
This paper reports the changes of the EEG of human bodies during saturation ex-posure at different depths to different mixed gases. The results of the research
The effects of lycobetaine (LBT) on DNA single strand break and chromatin conformation were examined by in-situ nick translation method. It was found that LBT did
This paper is the result of research on the Cretaceous magnetostratigraphy in the Songliao Basin. The palaeomagnetic experiment on 2235 specimens from 24 drills
Euhedral crystals of the uncommon low-temperature mineral lansfordite have been obtained by the synthetic method, and the crystal structure analysis has been ac
Based on over 10 years’ field survey and laboratory work, it has been confirmed that a series of storm deposits have been developed on different geomorphologic