“老兵”新功——记吉林省研究会会长尹元玄

1988年1月,中国职工思想政治工作研究会在武汉钢铁公司隆重举行第四届年会。会上表彰了一批思想政治工作优秀企业、优秀研究会,同时奖励表彰了45名研究会优秀干部、46名优秀论文作者。能在全国获奖已属不易,而他竟荣膺二誉,不仅被评为全国研究会优秀干部,而且获得优秀论文奖证书,这在会上是少有的。与会同志还注意到,大会举办全国研究会成立五周年成果展览,他主编的专著《企业精神塑造论》摆放在那里。

开凿石窟与续修道藏——宋德方对金末元初全真道发展的贡献

作为曾跟随丘处机西行觐见成吉思汗的十八位弟子之一,全真道士宋德方信仰坚定,道行高超,为金末元初全真道的发展做出巨大贡献。他不仅凭借其坚定的信仰,带领全真弟子,开凿了山西太原龙山与山东莱州寒同山两个大规模的全真道石窟;而且还以其渊博的知识与卓越的组织才能,主持了《元玄都宝藏》的编纂与刊布工作。由他带领开凿的这两大石窟在全真道教史上是空前的,对于今天研究元初全真道的信仰状况具有重要的历史价值。他对《道藏》的编纂、补充、整理与刊布,不仅对保存早期全真道典籍做出重大贡献,而且还昭示出元初全真道向传统道教回归的发展趋向。

我院隆重举行庆祝建院十周年暨第十个教师节大会

1994年9月10日,我院隆重集会,热烈庆祝建院十周年暨第十个教师节。应邀前来参加大会的领导和来宾有:省政协副主席李国泰、省经贸委副主任李德增、省教委副主任王双武、省军区政治部副主任王志新、省委宣传部副部长孙占国、省体改委副主任果敢、长春地质学院党委书记杜长龄、省委宣传部原副部长尹元玄、省人大选举委员会副主任王尚经、解放军装甲兵技术学校副校长邢国维、市委工交部副部长赵安成。

Geographical Tendencies of Trace Element Contents in Soils Derived from Granite,Basalt and Limestone of Eastern China

92 soil samples were collected from granite, basalt and limestone areas of eastern China and determined for 13 trace element contents. The geographical tendencies of and factors affecting trace element contents in soils were studied.The sequences of soil trace element contents (especially the transitional elements in the 4th period) were: basalt soils > limestone soils > granite soils.The contents of trace elements in soils of granite areas and basalt areas showed great inheritance of trace element contents from the relevant parent rocks. The contents of trace elements in limestones were very low, but they became very high in limestone soils. Trace element contents of soils derived from limestone and basalt'increased significantly from north to south, these tendencies were similar to the tendency of ferric oxide contents in soils.There were differences of contents of trace elements bound to ferric oxide in different kinds of parent material and in different types of soil. The correlations between the contents of trace elements and the contents of ferric oxide were better in basalt soils than in granite soils.

Platinum-group Elements Geochemistry of the Yangliuping Magmatic Ni-Cu-PGE Sulfide Deposit:Implications of Its Genetic Link with the Extrusive Basalts

Primitive mantle normalized Platinum group elements (PGE) concentration patterns for the Zhengziyanwo intrusion and Dashibao Formation basalts are of positive slope, similar to most of the world class magmatic Ni Cu PGE sulfide deposits. Characters of this intrusion and its related ores and Dashibao Formation basalts are their negative Pt anomaly and high concentration of Rh relative to Pt and Pd, facts being interpreted to be the results of crystallization and fractionation of Pt alloys and spinel phase free crystallization history for the magma, respectively. PGE parameters of the Dashibao Formation basalts are consistent with the general trend of those found for the Zhengziyanwo intrusion, and this might infer a genetic link between them.

“趣,情趣,兴趣,风情,ム一ド”的异同

提起近义词的比较,大多是指用言,而体言的近义词比较似乎很少。“趣,情趣,兴趣,风情,”这五个名词意义很相近,但在实际运用中却存在着不同程度的区别。本文想对它们的区别及相同之处作一些粗浅的探讨。

The discovery of Palaeoproterozoic volcanic rocks in the Bulunkuoler Group from the Tianshuihai Massif in Xinjiang of Northwest China and its geological significance

In the Dabudaer region of the Tianshuihai Massif （Xinjiang, Northwest China）, metavolcanic rocks within the mainly meta- sedimentary Bulunkuoler Group are basalt, basaltic andesite, and rhyolite. In situ zircon U-Pb LA-ICP-MS dating on rhyolite magmatic zircons yielded an age of 2481±14 Ma, interpreted as the eruption age of the Bulunkuoler Group volcanic rocks. The basalt and basaltic andesite are low-A1 tholeiite series and the rhyolite is low-Al calc-alkaline series. All of rocks are charac- terized by enrichment of LREE and LILE （Rb, Th and Ba）, depletion of P, Nb, Ta and Ti, and absence of Eu anomalies. The Cnd（t） of basalts ranges from 3.14 to 4.88 indicating a depleted mantle source. The trace element signatures show that these magmas experienced intense crustal contamination during their ascent. Direct evidence for crustal contamination is the xenocrystic zircons in the ryholite, with ages back to ca. 3300 Ma. The primitive-mantle normalized and Zr/Y-Zr diagrams for the basic volcanic rocks show that they formed in an intra-continental tectonic setting. Combined with the previous studies and compared with North China Craton Neoarchean basic volcanic rocks, it is supposed that the Bulunkuoler Group volcanic rocks reflect the Palaeoproterozoic mantle magma underplating and interaction with felsic crust.

Platinum-group element geochemistry of Cenozoic basalts from the North China Craton: Implications for mantle heterogeneity

Forty-two Cenozoic （mostly Miocene） basalt samples from Jining, Chifeng, Fansi, Xiyang, and Zuoquan areas of the North China Craton （the NCC basalts hereafter） were analyzed for platinum-group elements （PGE, including Os, It, Ru, Rh, Pt, and Pd）. Most of them are alkaline basalts and tholeiites and all of them display little crustal contamination. The total PGE contents of the NCC basalts vary from 0.1 to 0.9 ppb, much lower than those of the primitive mantle values of 23.5 ppb. Primitive man- tie-normalized PGE patterns of these basalts define positive slopes and Pd/Ir ratios vary from 1.2 to 25. In terms of both PGE contents and Pd/Ir ratios, they are quite similar to the mid-ocean ridge basalts. There are no obvious negative correlations be- tween PGE vs. MgO, Ni, and Cu in the NCC basalts, indicating that fractional crystallization of olivine, pyroxene, and/or sul- fides during magmatic process cannot be the controlling factor for the observed PGE variation. The observed Pd/Ir variations of the NCC basalts require involvement of non-chondritic heterogeneous mantle sources. Based on Sr-Nd-Pb-Hf isotopic sys- tematics and incompatible-element signatures, a mixing of partial melts from both asthenospheric peridotites and enclosed mantle eclogites at the top of asthenosphere was proposed for the origin of these NCC basalts. The lenses of eclogites are de- rived from upwelling of recycled continental crust during the westward subduction of the Pacific plate from the -600 km dis- continuity zone. The PGE geochemistry of these basalts provides independent evidence to support this conclusion and the ob- served Pd/Ir variations may reflect variations in proportions of tapped peridotitic and eclogitic melts.

End-Guadalupian mass extinction and negative carbon isotope excursion at Xiaojiaba,Guangyuan,Sichuan

The end-Paleozoic biotic crisis is characterized by two-phase mass extinctions;the first strike,resulting in a large decline of sessile benthos in shallow marine environments,occurred at the end-Guadalupian time.In order to explore the mechanism of organisms' demise,detailed analyses of depositional facies,fossil record,and carbonate carbon isotopic variations were carried out on a Maokou-Wujiaping boundary succession in northwestern Sichuan,SW China.Our data reveal a negative carbon isotopic excursion across the boundary;the gradual excursion with relatively low amplitude(2.15‰) favors a long-term influx of isotopically light 12 C sourced by the Emeishan basalt trap,rather than by rapid releasing of gas hydrate.The temporal coincidence of the beginning of accelerated negative carbon isotopic excursion with onsets of sea-level fall and massive biotic demise suggests a cause-effect link between them.Intensive volcanic activity of the Emeishan trap and sea-level fall could have resulted in detrimental environmental stresses and habitat loss for organisms,particularly for those benthic dwellers,leading to their subsequent massive extinction.