marine origin

基本解释

the rocks in which oil is found are of marine origin too.
石油存在処的巖石也都有海洋的淵源。
The principal compositions of soluble materials of the Ordovician oil field water in Tahe oilfield are consistent with sea water, suggesting its marine origin.
塔河油田奧陶系油田水的可溶物質主要成分與海水一致，表明其主要爲海相成因。
In order to open new domains for oil exploration and solve the problem of insufficient remaining reserves, it is necessary to search for Mesozoic marine origin petroleum.
爲開拓找油新領域，解決好目前油氣地質儲量不足的問題，提出尋找中生代海相油氣。