海洋通报
海洋通報
해양통보
MARINE SCIENCE BULLETIN
2014年
3期
268-276
,共9页
刘忠诚%金秉福%王金城%刘炳辰%孔庆祥
劉忠誠%金秉福%王金城%劉炳辰%孔慶祥
류충성%금병복%왕금성%류병신%공경상
碎屑沉积物%聚类分析%矿物组合区%辽东湾
碎屑沉積物%聚類分析%礦物組閤區%遼東灣
쇄설침적물%취류분석%광물조합구%료동만
clastic sediments%cluster analysis%mineral assemblage%Liaodong Bay
通过对辽东湾55个样品进行矿物分析,共鉴定出48种矿物,其中重矿物39种;选取9种含量较高的优势矿物与特征矿物作为指标,尝试进行 Q 型聚类分析。结果显示:辽东湾沿岸大致可以分为3个矿物组合区,优势矿物均为闪石类、帘石类和金属矿物;一区(老铁山-复州湾北)金属矿物以钛铁矿为主,特征矿物为石榴子石,复州河及沿岸冲刷为其主要物源,辽东浅滩可能与其有同源性;二区(复州湾北-营口)金属矿物中磁铁矿含量最高,特征矿物为榍石、锆石,受大辽河影响显著;三区(营口-秦皇岛)褐铁矿是金属矿物中主要组分,特征矿物为石榴子石、磷灰石,辽河、六股河对其贡献作用突出。主要因各条河流贡献作用不同,海岸地貌类型差异将研究区划分3个矿物组合区,对深入研究其物源,实施海岸规划保护具有重要的现实意义。
通過對遼東灣55箇樣品進行礦物分析,共鑒定齣48種礦物,其中重礦物39種;選取9種含量較高的優勢礦物與特徵礦物作為指標,嘗試進行 Q 型聚類分析。結果顯示:遼東灣沿岸大緻可以分為3箇礦物組閤區,優勢礦物均為閃石類、簾石類和金屬礦物;一區(老鐵山-複州灣北)金屬礦物以鈦鐵礦為主,特徵礦物為石榴子石,複州河及沿岸遲刷為其主要物源,遼東淺灘可能與其有同源性;二區(複州灣北-營口)金屬礦物中磁鐵礦含量最高,特徵礦物為榍石、鋯石,受大遼河影響顯著;三區(營口-秦皇島)褐鐵礦是金屬礦物中主要組分,特徵礦物為石榴子石、燐灰石,遼河、六股河對其貢獻作用突齣。主要因各條河流貢獻作用不同,海岸地貌類型差異將研究區劃分3箇礦物組閤區,對深入研究其物源,實施海岸規劃保護具有重要的現實意義。
통과대료동만55개양품진행광물분석,공감정출48충광물,기중중광물39충;선취9충함량교고적우세광물여특정광물작위지표,상시진행 Q 형취류분석。결과현시:료동만연안대치가이분위3개광물조합구,우세광물균위섬석류、렴석류화금속광물;일구(로철산-복주만북)금속광물이태철광위주,특정광물위석류자석,복주하급연안충쇄위기주요물원,료동천탄가능여기유동원성;이구(복주만북-영구)금속광물중자철광함량최고,특정광물위설석、고석,수대료하영향현저;삼구(영구-진황도)갈철광시금속광물중주요조분,특정광물위석류자석、린회석,료하、륙고하대기공헌작용돌출。주요인각조하류공헌작용불동,해안지모류형차이장연구구화분3개광물조합구,대심입연구기물원,실시해안규화보호구유중요적현실의의。
After a mineralogical analysis of 55 samples collected from the Liaodong Bay in the Bohai Sea, 48 minerals have been identified, in which 39 are heavy ones. 9 main minerals which have higher contents and diagnostic minerals are selected as targets for Q type cluster analysis. The research shows that the Liaodong Bay can be divided into three main mineral provinces, and the main mineral assemblages are the amphibole group, the epidotic group and the metallic minerals, respectively. In provinceⅠ (Laotieshan Mountain-the north of the Fuzhou Bay) , the garnet is treated as the diagnostic mineral, and ilmenites take a dominant position of the metallic minerals, all of which are mainly derived from the Fuzhouhe River and the substance eroded from the coast, which may be the same to the Liaodong Shoal. In provinceⅡ (the north of the Fuzhou Bay-Yingkou) , diagnostic minerals mainly include the sphene and the zircon, whose material characteristics are mainly influenced remarkably by the sediments of the Daliaohe River. In addition, the magnetite has the highest content in metallic minerals. In provinceⅢ (Yingkou-Qinhuangdao) , the limonite is the main component in the metallic minerals and diagnostic minerals are the garnet and the apatite, and the detritus from the Liaohe River and Liuguhe River prominently contributes to the mineral composition. Different mineral provinces reflect different coastal geomorphic types, and they are divided into different parts according to different contributions of rivers. This further study will concern about the provenance of minerals; we would make more progress in the coastal planning and protection.