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| 1 | Dating of sediment-hosted disseminated-type gold deposit by using ^40Ar/^39Ar laser probe:A case study of Changkeng large-scale gold deposit,China显示文摘Hydrothermal clay minerals that formed in the main metallogenic stage of the Changkeng disseminated-type gold deposit in central Guangdong were analyzed by the 40Ar/39Ar laser probe. The results give Ar-Ar isochron ages of 109.9 1.4 to 110.1 1.3 Ma, which are 30 to 50 Ma older than the age of silver ore bodies in the deposit. Both gold and silver mineralizations were not related to hidden granite batholith in the mining district, but probably related to evo-lution of sedimentary basins. This study shows that the 40Ar/39Ar laser probe is a sound dating tool applicable to sediment-hosted disseminated-type gold deposit. | SUNXiaoming CHENWen: WANGMin XUETing SUNKai CHENBinghui | 2003 | Chinese Science Bulletin2003，48，17： | 8 |
| 2 | Light Hydrocarbons in Fluid Inclusions and Their Constraints on Ore Genesis:A Case Study of the Songxi Ag(Sb)Deposit,Eastern Guangdong,China显示文摘The Songxi deposit is a newly discovered large Ag (Sb) deposit. By using a suite of high-vacuum quadrupole gas mass spectrometer systems, the authors have recognized many kinds of light hydrocarbons in fluid inclusions of minerals. These hydrocarbons are mainly composed of C1-C4 saturated alkanes, while the contents of C2-C4 unsaturated alkenes and aromatic hydrocarbons are quite low, suggesting that the metallogenic processes have not been affected by magmatic activities. Chemical equilibrium studies show that these hydrocarbons may be a mixture of organic gases generated by microorganism activity and those by thermal cracking of type-II kerogens (kukersite) in sedimentary host rocks, and the former may constitute more than two-thirds, implying that microorganism might have played an important role in the metallogenesis. The equilibrium temperature of the latter is about 300(C, which is much higher than the geothermal temperature at the estimated depth of metallogenesis. Thus, the light hydrocarbons generated by thermal cracking of kerogens probably originated in the deep part of the sedimentary basins and then migrated through a long distance to shallower horizons of the basin. Based on the composition of light hydrocarbons in fluid inclusions, the authors infer that the Songxi deposit was formed in a continental rift. The analytical data presented in this paper support from one aspect the genetic model that the Songxi deposit may be a sedimentary hot brine transformed deposit instead of a submarine basic volcanic exhalation and low-medium temperature volcanic hydrothermal fluid filling deposit proposed by most previous researchers. | SUNKai WANGMin CHENBinghui CHENJingde YUShoujun SUNXiaoming DavidI.NORMAN | 2003 | Acta Geologica Sinica(English Edition)2003，77，2： | 2 |
| 3 | A new mutant transcript generated in Znf230 exon 2 knockout mice reveals a potential exon structure in the targeting vector sequence显示文摘睾丸基因 Znf230 可以根据以前的报告在哺乳动物的精子发生起一个作用。删除 5 重要 exons 堵住蛋白质的形成是在基因大美人实验的一个平淡的方法。调查 Znf230 基因的生理的功能,有破坏 exon 的变异的老鼠 2 Znf230 在这研究被产生。结果显示出那,变异的 Znf230 鼠标是肥沃、显示出的正常身体,泌尿生殖器的机关,睾丸重量,和 spermatid 数字,但是后代的崽尺寸与不清楚的原因减少了。Hematoxylin 并且曙红染色证明变异的老鼠的阴囊的织物是未经触动的。反向的 transcriptase 聚合酶链反应分析证明二个新奇变异的抄本出现在变异的老鼠:短一包括 exon-1 和 exon-3 到 -6, 出人意料地从充当新 exon 的 pPNT 向量包含一个部分序列的长的 2。长抄本的生物信息的分析表明它可能与一样编码 24-kDa N 终端变异的蛋白质是的 182 氨基酸在 C 终点的野类型的 Znf230,显示 C3HC4 类型戒指手指的潜在的功能的区域在变异的蛋白质是未经触动的。西方的污点和 immunohistochemistry 分析也暗示 Znf230 的这个 N 终端变化可能不破坏野类型的 Znf230 在精子发生起了的可能的作用。在摘要,在指向的向量顺序的潜在的 exon 结构在指向 Znf230 基因的表示包含了并且扰乱了这个指向基因的实验的策略。 | Yunqiang Liu Dachang Tao Sunkai Ma Ying Kuang Dan SU Hao Zhang Yuan Yang Yongxin Ma Sizhong Zhang | 2013 | Acta Biochimica et Biophysica Sinica2013，45，2： | 1 |
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