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16d
三角洲相鉴别标志:挖掘地理学习的深度与广度
其次,粒度分布特征是三角洲相的重要鉴别性特征之一。随着水流从陆地向海洋迁移,砂岩中的颗粒逐渐变细并且分选变好。在三角洲前缘,特别是在C-M图中,不同段落的发育程度反映了不同环境下的沉积过程。这种由一系列微相组成的粒度变化,对于分析三角洲的演变过程具有重要意义。
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6mon
生物发光至少有5亿年的历史,远比以前要古老的得多
已知最古老的例子通常被认为是一种叫做介形虫的小甲壳类动物。 为了确定生物发光的起源,该小组参考了由包括奎特里尼在内的另一个团队在2022 ...
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2mon
航拍玉门魔山:揭秘祁连山中的地质奇观
9月4日,航拍视角下的玉门魔山国家地质公园。据了解,玉门魔山国家地质公园是集齐了火山口、丹霞地貌、波浪谷、硅化木群、古生物化石群等于 ...
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