submarine weathering

New data on osmium isotopic compositions of four seafloor massive sulfide samples from the TAG hydrothermal field has been got, the 187 Os/ 186Os ratios of massive sulfide samples vary from 2.

新测得TAG热液区中 5件海底块状硫化物样品的锇含量及其同位素组成 ,187Os/ 186Os比值在 2 。

But with the illicit excavation being more and more rampant, the legislator had passed “the law of the submarine cultural property".

法国传统法律制度对海底文物没有提供足够的保护,随着非法采掘海底文物的活动日益猖獗,法国于1989年出台了《关于海底文化财产的法律》。