松辽盆地火石岭组建组剖面存在两期火山岩旋回，而松辽盆地钻井揭示往往只存在一期火山岩旋回，与建组剖面差异较大。根据黑龙江省地质志384个火山岩K—Ar年龄样品绘制的频率图和燕山早期178—157Ma为火山活动出现较晚三叠世稍强的喷溢期，这两期旋回可以构成与火石岭组建组剖面相当的两期旋回，提出了付家洼子组地层是燕山旋回早期火石岭组建组剖面下部的一套火山岩地层，时代与178—154Ma相当。

The sorption of Th(Ⅳ) on attapulgite was studied as a function of pH,ionic strength,temperature and FA/HA concentration under ambient conditions using batch technique.The results indicate that sorption of Th(Ⅳ) on attapulgite is strongly dependent on pH values,and weakly dependent on ionic strength.The sorption of Th(Ⅳ) is mainly dominated by inner-sphere complexation,whereas outer-sphere complexation and ion exchange have little effect.FA and HA can enhance the sorption of Th(Ⅳ) on attapulgite.Sorption of Th(Ⅳ) increases with increasing temperature.Enthalpy(ΔH),entropy(ΔS) and Gibbs free energy(ΔG) were calculated from experimental data.The results indicate that the sorption of Th(Ⅳ) on attapulgite is a spontaneous and endothermic process.

On account of the difficult questions of a strip of double-fault-style rift basin-Yitong Basin stratigraphic correlation, this article, studies the features of the secondary and tertiary sequence boundary and sets up a sequence stratigraphic framework on the basis of the analysis of the regional structure, stratigraphy, sediment characteristics. Authors believe that Tf surface ultimately belongs to the secondary sequence surface through a comprehensive analysis of a number of ways, however, it is not the regional unconformity; authors have finally solved the attribution problem of the Y1 formation by the comparison of Tc, Td unconformity level .Using of logging, drilling, seismic and other data, combining with seismic and wells, suming up the characteristics of each sequence stratigraphy, systematically dividing and comparingthe formation ofYitongBasin, the standards ofdivision and correlation ofvarious layer are set up.

镍是人体必须的微量元素,同样也是重要的环境污染物,国际致癌研究中心(IARC)已将镍归为第Ⅰ类致癌物[1].近些年随着环境问题的日益加重,镍的毒理学研究已经逐步深入.但是关于镍的药物动力学、吸收以及排泄的详细资料较少发现.本研究用同位素示踪法来研究镍在大鼠体内的药物动力学参数和排泄,以便得出一些可靠的资料,为镍的生理代谢和毒理过程研究提供一些的参考。