This period of folding was the ordovician taconic orogeny .

这段期间所造成的折叠是奥陶系塔康尼克的造山运动。

Ordovician plate tectonice of china and its neighboring region .

中国及邻区奥陶纪板块。

First discovery of middle ordovician strata in eastern heilongjiang .

黑龙江省东部首次发现中奥陶世地层。

On the international ordovician and silurian boundary .

论国际奥陶志留系的分界。

And ordovician and cambrian , quaternary of the people who hailed from a fight .

和奥陶纪、寒武纪、第四纪的生灵们打个招呼。