文章摘要信息 关键词 ： 固阳北部 SHRIMP锆石U-Pb年龄 早石炭世 岩浆混合 [gap=1441]Keywords : North Guyang, SHRIMP Zircon U-Pb dating, Early Carboniferous, magma mixing
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early early carboniferous 早石炭世早期
late early carboniferous 早石炭世晚期
early-carboniferous period 早石炭世
Early Carboniferous Xinjiang 早石炭世
early carboniferous encrinite 早石炭世海百合
Combining with the studies of isotopic chronology,stratigraphy and paleontology,the ophiolites from the Jinshajiang back-arc basin may be generated during early Carboniferous- Permian.
结合同位素年代学、地层、古生物研究，认为金沙江弧后洋盆蛇绿岩的形成时代可能是早石炭世至二叠纪。
参考来源 - 滇西北金沙江带和滇东南建水火山岩地球化学特征及古特提斯演化The two early Carboniferous fragments are composed of Basalt and ash-black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.
早石炭世两个断片由玄武岩和灰白色、紫红色放射虫硅质岩、硅质泥岩、凝灰岩组成。 通过对硅质岩进行的地球化学研究，发现该地区硅质岩SiO_2含量均在80％以上，MnO／TiO_2的平均值为0.58，Al／(Al+Fe+Mn)的平均值约为0.48，Ce／Ce*比值的平均值为0.91。
参考来源 - 滇西南耿马地区弄巴剖面的晚古生代放射虫动物群及地层学研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Volcanic rocks of early Carboniferous Baishan Formation were widely distributed in the Beishan area of Gansu Province.
早石炭世白山组火山岩是甘肃北山地区分布最为广泛的晚古生代火山岩。
The flora reached its full flourish in the early Early Carboniferous and became extinct at the end of the Early Carboniferous.
拟鳞木植物群逐渐从泥盆纪植物群分离出来，繁盛于早石炭世早期， 绝灭于早石炭世末期。
The two early Carboniferous fragments are composed of Basalt and ash-black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.
早石炭世两个断片由玄武岩和灰白色、紫红色放射虫硅质岩、硅质泥岩、凝灰岩组成。
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