One is that these basalts are confined to some ancient basins .

其一是玄武岩只存在于部分古老的盆地地区。

The radiolaria fossils and submarine basalts which are first discovered afford us new material to discuss about the stratigraphical time and tectonic background of this area in devonian period .

首次在该区发现放射虫化石和海相玄武岩地层。为探讨该区泥盆系的时代以及大地构造环境提供了新的资料。

Feiren and colleagues , including scientists from nasa 's ames research center in california , chose compositions based on weathered basalts for the martian fluids in their model to match the chemical compositions of rock found at mars landing sites .

菲尔恩（feiren）和他的同事，包括在加利福尼亚州的美宇航局艾姆斯研究中心的科学家们，在他们的模型中，选择的成分是基于风化玄武岩的火星流体，目的是匹配在火星着陆点发现的岩石化学成分。