溧阳火山岩盆地TM遥感图像线性构造密度分析

利用１：１０万溧阳火山岩盆地ＴＭ图像线性影像解译图上线性影像的长度、方位、频度及构造可信度为基本数据,通过作线性影像方位－频度直方图、线性构造等密度图等统计分析,研究区内线性构造的优势方位、异常带的空间展布规律及各向异性,为研究区域构造格局、构造序次及其控矿关系提供依据。     

Fluorescence as a Tool for Tracing the Organic Contamination from Pulp Mill Effluents in Surface Waters

Three‐dimensional fluorescence spectra of water samples from an eucalyptus bleached kraft pulp mill and from a river, upstream and downstream of the discharge of the effluent, revealed the existence of a peak at δ_exc = 280 nm and δ_em = 340 nm Δδ = 60 nm), characteristic of effluentπs organic matter. Humic substances were isolated from the effluent by sequential adsorption onto resins XAD‐8 and XAD‐4 in series. Their synchronous fluorescence spectra with Δδ = 60 nm do also exhibit an intense signal at δ_exc = 280 nm (≈ 300 nm in the humic acid fraction). The peak is absent in the spectra of humic substances isolated from a non‐polluted site of the river, but it is clearly seen in the spectra of the humic substances from a site downstream of the discharge of the effluent. Synchronous fluorescence spectra (Δδ = 60 nm) of water samples from the river and its lagoon were recorded and revealed to be an easy and fast way of tracing the organic contamination from the effluent.     

辉锑锡铅矿表在的STM研究

本文利用扫描隧道显微镜（ＳＴＭ）对辉锑锡铅矿（１００）解理面的表面结构物征进行了研究，得到了清晰的原子级分辨率图像，并观察到辉锑锡铅结构中因两种基本构造层不匹则导致的调制波结构及超结构长周期现象，同时还观测研究了辉锑锡铅矿的表面微形貌特征。 ?