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2篇 您的检索式:作者名="YAO YuZeng"
    题名 作者 年代 出处 被引量
1Unique recovery stage of reef communities after F/F event in a huge coral reef of Carboniferous, Southern Guizhou,China显示文摘A huge coral reef occurring in the Triticites belt of the Maping Formation, in Bianping Village, about 4 km west of Houchang Town from Ziyun County, Southern Guizhou, China is described. The coral reef has been well studied and some significant characteristics were dis-covered: the composition of reef-building community is very monotonous; there are only one or two builders in each reef-building stage; the dwellers are also poor in variety; the reef-building process is very simple; the reef has been separately built by various reef-building mechanisms, and there have been few parts built by two coexisting building mechanisms; the process of reef building is often discontinuous and lacks transition. All these characteristics are considered to be unique to the recovery stage of reef communities after F/F event and are representative of a process that reef communities must undergo post the catastrophe.GONG Enpu YANG Hongying GUAN Changqing SUN Baoliang YAO Yuzeng 2004Science China Earth Sciences2004,47,5:14
2Morphologic characteristics and growth interface stability of nano-micron FeS_2 whiskers显示文摘Micromorphology is further studied on the basis of our previous researches concerned with the nano-micron FeS2 whisker. There are obvious differences in the intensive degree, diameter and micromorphology among the FeS2 whiskers growing in different stages. From the early to late stage, the intensive degree increases, the diameter decreases, and the surface micro-morphology changes following the regularity: protrusive nodulation → coarse → smooth → flat. According to the theory of crystal growth, the geological setting and processes of whisker formation, we discuss the stability and evolution of crystal growth interface of FeS2 whisker occurring in Gengzhuang gold deposit (Shanxi Province, China). The results suggest that the negative temperature gradient and the supercooling appear in the early stage of the whisker growth, whereas the positive temperature gradient of reposeful state appears in the late stage. In the whisker growth stage, the component concentration changes through the three stages: severely nonhomogeneous in the early stage, relatively homogeneous in the middle stage, more homogeneous in the late stage. The general changing process of the interfacial state is from unstable to stable. Micromorphology of FeS2 whisker in Gengzhuang is the result of synergism of temperature, component concentration and stability of crystal interface phase in hydrothermal system. The micromorphology not only reflects the physical and chemical characteristics of the hydrothermal system during the whisker growth, but also indicates the stability characteristics of the interface phase and records the changing process of the whisker growth.HUANG Fei WANG RuCheng ZHANG WenLan YAO YuZeng PENG YanDong KOU DaMing 2009Chinese Science Bulletin2009,54,23:6
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