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Recently, we collected several thousand cosmic spheres in deep-sea sediments from the Northern Pacific (lat 7°-11°N, long. 158°-178°W). They include iron sphere (83%), sillicate spheres (15%), and glassy spheres (2%). 5.7% of the iron spheres has button-shaped structures containing Ni, Co, Cu, Cr, Au, etc.This discovery is of significance for the further investigation into the origin and formation mechanism of cosmic spheres. 相似文献
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In 1979, we found many small colorless transparent and light yellow-green glassy spherules in the surface layer and core sediment samples taken from the west of the Central Pacific Occan, which are considered to be microtektites. This finding is worthy of further determination of the range of strewn field and origin of tektites. 相似文献
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在油层改造中,需要往油层注入不同性质的工作液。然而在注入各种工作液后,对油层究竟产生了什么样的后果?对不同油层注入哪一种工作液效果最好?这是采油机理研究所关注的问题。这种化学剂对油层岩石结构产生的作用,很难用简单的化学反应加以认识。人们希望能够直接观察到油层岩石注入前后的结构,以及在注入不同种工作液 相似文献
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