海成泥灰巖 的英文怎麼說
中文拼音 [hǎichéngníhuīyán]
海成泥灰巖
英文
marine marl-
The results improve our understanding of the utility of tl as an indicator of sedimentary environment and provide insight into what types of ocean sediments are amenable for study. the comparison of the 18o with the tl cycles indicates that the tl dose display the expected coupling relation with interglacial and glacial climate cycles
尤以位於東經90海嶺上的以遠洋沉積作用為主的md81349巖芯最為理想，陸源剝蝕產物在其沉積記錄中所佔比例較少，有孔蟲和超微化石為代表的遠洋成因的灰白色生物軟泥構成主要的沉積組分。Layers of carbonate limestones, silty mudstones, quartz sand and solidified lava show that within the past 600 million years, this area was a warm, shallow sea, then a muddy swamp, then a vast desert of shimmering hot dunes, then a glacial ice sheet, then a shallow sea once again
層層的碳酸石灰巖、粉砂質泥巖、石英砂和凝固的熔巖，顯示在過去六億年間，這個區域曾經是溫暖的淺海，接著依序變成泥濘的沼澤、擁有炙熱沙丘的廣闊沙漠，然後是冰川，后來又再度成為淺海。
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