ammonite相关论文
Callovian-Oxfordian hecticoceratins from western India:Their biostratigraphic and palaeobiogeo-graph
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
藏南定日遮普惹山剖面主要是Albian晚期到古近纪海相沉积,Willems等(1996)对岩石地层和沉积微相进行了详细研究,并通过浮游有孔虫......
Callovian-Oxfordian hecticoceratins from western India:Their biostratigraphic and palaeobiogeo-graph
The Kutch Basin of western India is famous for its rich assemblages of the Callovian-Oxfordian ammonites. The family Opp......
分析了影响粉状炸药起爆的因素;介绍了粉状硝铵炸药的四种敏化方法。认为硝酸铵敏化改性研究是我国粉状炸药的发展方向。......
文中分析了采用标准方法分析铵梯炸药成分产生误差的原因,认为木粉含脂和食盐含碘是造成TNT测试含量偏高的问题所在,提出了新的分......
文中介绍一种碾混机自动出料刮板装置,该装置不仅克服了碾混机固定出料刮板存在的混料不均和细工达不到工艺要求的弊端,而且安全生产......
文中以精制盐加工工艺理论为指导,进行了精制盐代原盐,取消原盐焙烧制造煤矿许用铵梯炸药的尝试。精制盐替代原盐具有降低材料成本,概......
Elaborate and precise replicas taken from real fossils are used for academic researches in place of originals. They are ......