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WAVELET TRANSFORM ASSOCIATED TO THE AFFINE GROUP AGS,
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作者 Qianqing Qin & Nengchao Wang (Huazhong University of Science and Technology, China) 《Analysis in Theory and Applications》 1995年第4期45-50,共6页
This paper considers wavelet transforms associated to the affine group, which is more general than the paper given by R. Murenzi, and it seems more important in mathematical theory and more natural to be used to analy... This paper considers wavelet transforms associated to the affine group, which is more general than the paper given by R. Murenzi, and it seems more important in mathematical theory and more natural to be used to analyze signals in more than 1-dimension. 展开更多
关键词 WAVELET TRANSFORM ASSOCIATED TO THE AFFINE group AGS MORE Morlet THAN
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Characteristics of Paleoproterozoic Subduction System in Western Margin of Yangtze Plate
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作者 Zhang Hongxiang Liu Congqiang Xu Zhifang Geology and Geophysics Institute, Chinese Academy of Sciences, Beijing 100101 Huang Zhilong Geochemistry Institute, Chinese Academy of Sciences, Guiyang 550002 《Journal of Earth Science》 SCIE CAS CSCD 2000年第1期58-67,共10页
Paleoproterozoic subduction strongly occurred in the western margin of Yangtze plate. The basalticandesite volcanics of Ailaoshan Group and Dibadu Formation had been formed during paleo QinghaiTibet oceanic plate s... Paleoproterozoic subduction strongly occurred in the western margin of Yangtze plate. The basalticandesite volcanics of Ailaoshan Group and Dibadu Formation had been formed during paleo QinghaiTibet oceanic plate subduction under the paleoYangtze plate. Their trace element geochemistry suggests that their forming environments are continentalmarginarc and back arcbasin respectively. Consequently, the Paleoproterozoic subduction system in the western margin of Yangtze plate was established. Ailaoshan Group and Dibadu Formation came from an enriched mantle source that was contaminated by crustal sediments carried by subducted slab, and formed the Paleoroterozoic metamorphic basement of western margin of Yangtze plate. Ailaoshan Group is actually western boundary of Yangtze plate. 展开更多
关键词 western margin of Yangtze plate Paleoproterozoic subduction system Ailaoshan group (AG) Dibadu Formation (DF) incompatible element (IE) large ion lithospheric element (LILE) high field strengthen element (HFSE).
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