【摘要】 三沙湾表层沉积物极细砂中的重矿物不下82种,除少量自生矿物外几乎全是陆源矿物,多数矿物含量变化很大.在岩性和潮流控制下,共形成了12区重矿物组合.更多还原

【Abstract】 No less than 82 species of heavy minerals have been identified from the very fine sand grains in the surface sediments from the Sansha Bay.The most minerals were terrigenous except for a few authigenic minerals.The contents of most minerals varied significantly.Among them,12 assemblages area of heavy minerals were formed under the control of lithological and tidal current.更多还原