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机构地区:[1]Department of Geography, Beijing Normal University, Beijing 100875, PRC
出 处:《Chinese Science Bulletin》1992年第19期1647-1652,共6页
摘 要:Dongling Mountain is the highest one of the Beijing West Mountains. There is a layer of subalpine meadow soil about 0.50 m thick at the top of the mountain, of which the basement rock is the Jurassic andesite. A section was artificially dug out and some samples
关 键 词:BLACK microspherules with MAGNETISM MICROTEKTITES COSMIC SPHERULES
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