oncolite相关论文
羌塘盆地侏罗系核形石纹层不发育,只有个别核形石发育不规则的纹层,未发现菌藻类痕迹;核心主要以大小不等的生物碎屑为主;核形石与......
核形石是微生物岩的一种,长期受到地质学家的广泛关注。目前在核形石的展布模式、沉积环境以及微生物特征和形成机制方面的研究仍......
川西北龙门山前甘溪地区吉维特阶发育一套厚2-3m灰-深灰色微生物岩,由直径0.1-4.0cm的核形石组成,其核心皆由早期葛万藻及其他生物......
Oncolites of the Lower Permian ChuanshanFormation in South China and Their Geologicaland Economic Si
A large amount of oncolites popularly named ' Chuanshan balls' occur universally in the Lower Permian Chuanshan ......
Oncolites of the Lower Permian ChuanshanFormation in South China and Their Geologicaland Economic Si
A large amount of oncolites popularly named ' Chuanshan balls' occur universally in the Lower Permian Chuanshan ......
Pelagic manganese nodules from the East Pacific Ocean have been studied using polarizing,scanning electron and transmiss......
在观察兴县关家崖野外露头剖面马五_5亚段核形石灰岩岩性特征的基础上,进行了薄片镜下鉴定,开展了全岩X衍射,主、微量元素,锶和碳......
核形石包壳特征是分类的重要依据，包壳形态在一定程度取决于其生长环境中的水流能量因素。塔中油田3口井上奥陶统凯迪阶良里塔格组......
对东太平洋深海锰结核用偏光显微镜、扫描电镜和透射电镜进行了研究。结果表明其由核心和叠层石包壳组成,具有核形石特有的结构和......
