浅成环境中岩浆流体的演化：稳定同位素透视

根据矿床地质背景、热液蚀变组合、流体包裹体和稳定同位素地球化学，特别是根据浅成岩浆热液环境中特征矿物明矾石的稳定同位素组成，研究岩浆成矿流体的来源、动态与化成矿机理，获得了许多新认识；根据δ＾１４Ｓ和δ＾１８Ｏ可将明矾石划分出两种不同的成因类型；岩浆成矿热液在时间上从早期的气相流体向主成矿期的液相流体演化，而岩浆热液矿床在空间上主要定位于脆性－延性过渡带。     

亮裂缝—可能是第三种油气反射特征

地震解释中的“亮点”反射反映气藏的存在,特别是地层圈闭中的气藏,如尖灭和削截;“平点”反射反映流体之间的接触面。Fabrizio Rigo 认为可能存在第三种油气反射特征,他称其为“亮裂缝”(bright fratures)。人们易将这种特征解释为噪音或干扰波。     

Expression of superoxide dismutase (SOD) genes from the copper-exposed polychaete, Neanthes succinea

To evaluate the superoxide dismutase (SOD) genes as a potential indicator of environmental stress, we cloned and sequenced the full-length cDNA of a Cu/Zn-SOD and Mn-SOD genes from the marine polychaete, Neanthes succinea. Ns-Cu/Zn- and Mn-SOD expression was measured using quantitative real-time RT-PCR in response to the oxidative stress induced by copper in the form of CuCl2. Ns-Cu/Zn-SOD expression increased in a dose dependent manner but the increase of Mn-SOD expression was evident only at a high concentration of copper. Particularly, Ns-Mn-SOD dramatically increased in the 72 μg/L CuCl2-exposed groups, indicating that both Ns-SOD genes were induced by copper exposure. These results suggest that Ns-Cu/Zn- and Ns-Mn-SOD would play important roles in the detoxification of cellular oxidative stresses in the polychaete, N. succinea. Furthermore, as part of field work, the marine polychaete, N. succineaCu/Zn-SOD mRNA collected from the polluted area was accordingly upregulated in expression but not for NS-Mn-SOD.     

Audouin's gull chicks as bioindicators of mercury pollution at different breeding locations in the western Mediterranean

Mercury levels of Audouin's gull are amongst the highest for Mediterranean seabirds, and have been mainly attributed to its piscivorous habits in these naturally Hg rich waters. Moreover, two additional factors could enhance its mercury intake: the consumption of discarded fish (which attain higher concentrations) and/or feeding in areas receiving Hg anthropogenic inputs. In order to differentiate the relevance of both sources we analysed Hg and stable isotopes of chick feathers from different breeding locations in western Mediterranean: one in its northern part (Ebro Delta) and two southern (Chafarinas Isl. and Alborán Isl.). The results from stable isotopes indicate that consumption of discards is higher at Alborán Isl., followed by the Ebro Delta and Chafarinas Isl. Thus, the higher mercury levels found in the Ebro Delta cannot be explained uniquely by the contribution of discarded fish to diet, but local pollution caused by the river Ebro waters accounts for Hg differences observed.     

真实时间解释改善勘控开发决策

本文叙述了真实时间解释的优点及有关技术，所讨论的相关技术领域是：．并行解释。．信息交换技术。．三维可视化。．综合体系。．未来的解释系统。