964 resultados para 56-435A
Resumo:
Building up an image of Russophobic countries is currently instrumental in shaping a neo-imperial political identity among the citizens of the Russian Federation, mobilising them in the face of real or alleged threats, and also serves as a form of restoring psychological comfort to them in the face of the failure of the Kremlin’s actions (as in Ukraine, for example). The mythologised stereotype of Russophobic countries also remains a crowning argument and a simple explanation for the ongoing tensions in relations between Russia and the West.
Resumo:
Chinese elites do not treat Europe as an equal partner and are convinced that China holds the upper hand over Europe. They see a growing asymmetry in bilateral relations. China’s sense of its own potential is boosted by internal divisions within the European Union. At the same time, Europe is China’s key economic partner and an ‘economic pillar’ supporting China’s growth on the international stage. Beijing strives to maintain Europe’s open attitude towards the Chinese economy, in particular its exports, technology transfer to China, location of investments and diversification of China’s currency reserves. Cooperation with Europe and support from Europe are necessary to enable China to improve its position in the international economic and financial system, mainly in order to legitimise China’s actions in the area of multilateralism and global governance. Similarly, Beijing attaches great importance to maintaining Europe’s non-involvement in two issues: China’s core interests and Chinese-American relations.
Resumo:
The quantity, type, and maturity of the organic matter of Quaternary and Tertiary sediments from the Japan Trench (DSDP Leg 56, Sites 434 and 436; and Leg 57, Sites 438, 439 and 440) were determined. The hydrocarbons in lipid extracts were analyzed by capillary- column gas chromatography and combined gas chromatography/ mass spectrometry. Kerogen concentrates were investigated by microscopy, and vitrinite-reflectance values were determined. Measured organic-carbon values were in the range of 0.13 to 1.00 per cent. Extract yields, however, were extremely low. Normalized to organic carbon, total extracts ranged from 4.1 to 15.7 mg/g Corg. Gas chromatography of non-aromatic hydrocarbons showed that all sediments, except one Oligocene sample, contained very immature, mainly terrigenous organic material. This was indicated by n-alkane maxima at C29 and C31 and high odd-carbon-number predominances. Unsaturated steroid hydrocarbons were found to be major cyclic compounds in lower- and middle-Miocene samples from the upper inner trench slope (Sites 438 and 439). Perylene was the dominating aromatic hydrocarbon in all but the Oligocene sample. Microscopy showed kerogens rich in terrigenous organic particles, with a major portion of recycled vitrinite. Nevertheless, almost all the liptinite particles appeared to be primary. This is a paradox, as the bulk of the samples were composed of hemipelagic mineral matter with a major siliceous biogenic (planktonic) component. A trend of reduced size and increased roundness can be seen for the vitrinite/ inertinite particles from west to east (from upper inner trench slope to outer trench slope). All sediments but one are relatively immature, with mean huminite-reflectance values (Ro)in the range of 0.30 to 0.45 per cent. The oldest and deepest sediment investigated, an Oligocene sandstone from Site 439, yielded a mean vitrinitereflectance value of 0.74 per cent and a mature n-alkane distribution. This sample may indicate a geothermal event in late Oligocene time. It failed to affect the overlying lower Miocene and may have been caused by an intrusion. Boulders of acidic igneous rocks in the Oligocene can be interpreted as witnesses of nearby volcanic activity accompanied by intrusions.
(Figure F3) Orthogonal vector plots of AF demagnetization steps of IODP Hole 308-U1324B (11.56 mbsf)