香炉碗子金矿床稳定同位素研究及矿床成因探讨

香炉碗子金矿床产于脆一韧性剪切带内，控矿围岩为火山隐爆角砾岩体，通过硫，铅，氢，氧，碳，锶等同位素及稀土元素的研究可以看出，该矿床是一个中，低温有大气水参与火山热液型金矿床，其火山岩岩浆属太古宙结晶基底重熔再造，壳幔混合型。     

211地区铀矿床的稳定同位素地球化学特征

本文在讨论了 2 11地区花岗岩型铀矿床的稳定同位素组成的基础上 ,提出该区铀成矿热液可能主要来自晚期花岗岩浆 ,部分来自大气降水     

黔南Triticites带旋回层序碳同位素特征及冰川型海平面变化

应用层序地层学理论对黔南独山地区晚石炭世麦粒链带地层进行了详细的沉积层序分析和系统的碳同位素测定，识别出２个三级沉积层序和１７个准层序，其可与北美中大陆同期地层中发现的２个三级沉积层序和１７个亚层序对比，是晚石炭世Ｇｚｈｅｌｉａｎ期存在全球沉积记录同时性的佐证。同时探讨了碳同位素演化与全球海平面变化之间的内在联系，总结出沉积层序内碳同位素演化规律。     

Oxygen Isotope Exchange Kinetics Between Coexisting Minerals and Water in the Aral Granite Pluton of the Altay Mountains, Northern Xinjiang

Coexisting quartz, feldspar and biotite vary widely in their δ18O values and display a remarkable 18O/16O disequilibrium relation; especially, a quartz-feldspar reversal (△ 18OQUartz_feldspar< 0) exsists in the Aral granite pluton of the Altay Mountains, northern Xinjiang. The 18O / 16O exchange reaction definitely occurred between granite and water. Initial δ18O values of the granite and exotic fluid are evaluated by the mass balance consideration. The conventional method of discrimination between various magma derivations simply with δ18O values of either whole rock or separate minerals is misleading and unreliable. Experiments carried out by the authors show that the 18O / 16O exchange reaction is not accompanied by what geologists describe as petrological and mineralogical alteration effect. This decoupling relation implies that exchange reaction occurs at a relatively high temperature during subsolidus-postmagmatic cooling of magmas. The exchange mechanism is mainly diffusion-controlled. It is     

Reconstruction of atmospheric CO2 from ice-core data and the deep-sea record of ontong Java plateau: the Milankovitch chron

We provide a reconstruction of atmospheric CO₂ from deep-sea sediments, for the past 625000 years (Milankovitch chron). Our database consists of a Milankovitch template of sea-level variation in combination with a unique data set for the deep-sea record for Ontong Java plateau in the western equatorial Pacific. We redate the Vostok ice-core data of Barnola et al. (1987). To make the reconstructions we employ multiple regression between deep-sea data, on one hand, and ice-core CO₂ data in Antarctica, on the other. The patterns of correlation suggest that the main factors controlling atmospheric CO₂ can be described as a combination of sea-level state and sea-level change. For best results squared values of state and change are used. The square-of-sea-level rule agrees with the concept that shelf processes are important modulators of atmospheric CO₂ (e.g., budgets of shelf organic carbon and shelf carbonate, nitrate reduction). The square-of-change rule implies that, on short timescales, any major disturbance of the system results in a temporary rise in atmospheric CO₂.     

青藏高原东北地区现代降水中δD与δ^18O的关系研究

根据对取自青藏高原东北地区部分降水样中氢氧稳定同位素比率的分析，得到沱沱河站的大气水线（ＭＷＬ）为：δＤ＝８．２５δ＾１８Ｏ＋９．２２‰，与全球平均ＭＷＬ的差别较小；德令哈、西宁站的ＭＷＬ分别为：δＤ＝５．８６δ＾１８Ｏ－２７．２８‰和δＤ＝６．９６δ＾１８Ｏ－３０．１９‰，均与全球平均ＭＷＬ差别较大。这主要归因于水汽源地的非平衡蒸发和凝结物在非饱和大气中降落时的非平衡蒸发。上述地区的过量氘Ｅｘｄ     

阿尔泰造山带构造演化研究中的几个关键问题剖析

对阿尔泰山地区的构造格局、构造变质、岩浆岩时代、动力热事件和构造区类型归属等几个地学基础问题进行深入细致研究的基础上，反演了阿尔泰地槽造山带形成和演化的递进历程。     

高温超高压下Ni40Mn30Fe30与叶蜡石反应的研究

本文对Ｎｉ４０Ｍｎ３０Ｆｅ３０合金与在不同焙烧温度下得到的含水叶蜡，在高温超高压下的反应进行了实验研究，温度测至１４２０℃，压是至５．５ＧＰａ，研究了该反应的物质－化学机制，以及反应速率与温度，压力，含水量等参数的关系，对高压下物质迁移运动的固有特征进行了探讨。     

华南西部晚二叠世碳同位素地层学研究

对黔桂地区７条晚二叠世碳酸盐岩型煤系剖面进行了碳酸盐岩碳氧同位素测定，发现晚二叠世吴家坪阶与长兴阶碳酸盐岩的δ１３Ｃ值有明显差异，前者δ１３Ｃ多大于３．０‰，后者多小于３．０‰，进一步对晚二叠世δ１３Ｃ的变化原因的分析表明，δ１３Ｃ的变化可能与晚古生代末期聚煤作用的减弱密切相关，后者造成自然界碳库中的１２Ｃ的富集，从而使得海水以及在其中沉淀出的碳酸盐岩中的δ１３Ｃ值降低。此外，植物光合作用从大气中吸收ＣＯ２的量也随陆地植被减少而减少，结果造成大气中的ＣＯ２的大量富集，从而进一步产生温室效应，制约生物界的发展。联系到这一阶段生物界的衰亡灭绝，可以认为温室效应是晚二叠世生物逐渐衰亡及晚二叠世末群体灭绝的主要原因之一。     

华北石炭——二叠纪煤系粘土岩夹矸中铝的氢氧化物矿物研究

华北石炭——二叠纪煤系太原组和山西组不同煤层粘土岩夹矸中,广泛含有一水软铝石、一水硬铝石和三水铝石。大多数一水铝石矿物呈薄纹层状、似层状及层状聚集于富岩质及富有有机质粘土岩夹矸条带中,有的呈细脉状沿炭质条带及粘土岩夹矸层理的节理裂隙分布,并与玉髓、方解石、高岭石或迪开石和铵云母细脉共生。铝的氢氧化物矿物可以作为成岩古温度和成岩阶段划分的标志矿物。最后还讨论了该矿物的成因。