沙鲁里山地区第四纪冰川研究

Shaluli Mountains is the widest part of the Henduanshan Range. It is also the representative region which has been deeply impacted by the Quaternary oceanic glaciation. The deposits sequences of the Quaternary glaciation are very integrate and the scale of the glaciation is large. In recent years, we have carried out systemic researches to this region and defined the scale of the glaciation and made out the 3D geomorphological imagery of Daocheng Glaciation Cap. By using the technologies of ESR, 14C and TL, we determined the chronologies of the deposits of glacial and glacial-fluvial, the gravels of Daocheng and those of the loess and the paleosoil of this region. And the oldest and deepest weathered marines was Kurizhao Marine, formed at 560 kaB.P.. Combined with the chronology dates which we have obtained from the regions of Qilianshan and Tianshan, we could find that the Qinghai--Tibetan Plateau rose up to the altitude of Cryosphere after the Kunlun---Huanghe movement. After that, the large scale mountainous glaciation began to develop at the middle-low latitude areas. Simultaneously, the studies on the terrace sequence of Shuoqu River on Xiangcheng County and the stratum of Jawa Group demonstrated the development model of geology and geomorphology in this region since the late Cenozoic. Namely, the geomorphology evolution has experienced for a long time. The development process was: planation surface--tectonic uplift --rift valley on top of the mountain and depositions--the formation of the older terrace--galciation development--heavy weathering in inter-glaciation--uplift intermittently--the glacial and terraces formation. Perhaps from this process, we can find the evolution history of the Qinghai--Tibetan Plateau.

三氮唑類的研究对植物生长调节剂和杀菌剂的新农药的研究和开发是非常重要的,它是七十年代初期开始,是目前国内外研究较集中的一个领域,我们合成了三大類65个新的三氮唑類化合物,确定其结构和生物活性的初筛.在合成中发现未见文献报导的類Manuch反应,并探讨了反应条件,和异相体的分离,分析及生物活性的测定,企?我们更高效的农药结构,初筛了过去合成较好的11个新化合物,其中L1和E5有较好的杀菌和植物生长调节活性,待发表论文三篇,该项研究工作我们今后仍需继续进行.