| XU Maoquan,XU Wenbin,SUN Meiqin. 2005. Distribution and composition characteristics of heavy minerals in surficial sediment of Minjiang Estuary. Acta Oceanologica Sinica, (3):86－93 |
| Distribution and composition characteristics of heavy minerals in surficial sediment of Minjiang Estuary |
| Distribution and composition characteristics of heavy minerals in surficial sediment of Minjiang Estuary |
| Received:August 26, 2004 Revised:January 09, 2005 |
| DOI： |
| Key words:heavy mineral distribution characteristics sedimentation origin of matter Minjiang Estuary |
| 中文关键词: heavy mineral distribution characteristics sedimentation origin of matter Minjiang Estuary |
| 基金项目: |
| Author Name | Affiliation | E-mail | | XU Maoquan | Department of Oceanography, Xiamen University, Xiamen 361005, China
Institute of Subtropical Oceanography, Xiamen University, Xiamen 361005, China | xumaoquan@sina.com | | XU Wenbin | Department of Oceanography, Xiamen University, Xiamen 361005, China | | | SUN Meiqin | Department of Oceanography, Xiamen University, Xiamen 361005, China | |
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| Abstract: |
| Heavy minerals with a size range of 0.125~0.250 mm in the surficial sediment of Minjiang Estuary are studied. Thirty-four heavy minerals have been identified, with an average content of 1.92%. Major minerals include magnetite, epidote, hematite, hornblende, ilmenite, and zircon mica. These types are the same as those in the 0.063~0.125 mm range; however, the average content is lower, which reveals that the heavy minerals in Minjiang Estuary are mainly enriched in the very-fine sand fraction. According to the content and distribution characteristics of the major heavy minerals, Minjiang Estuary can be divided into 4 mineral assemblage zones. In each zone the assemblage of heavy minerals is greatly affected by the hydrodynamic condition and the sedimentary environment. Heavy mineral types also show that detrital matters in Minjiang Estuary are originated from the weathering and erosion of the bedrock in the Minjiang River drainage area. |
| 中文摘要: |
| Heavy minerals with a size range of 0.125~0.250 mm in the surficial sediment of Minjiang Estuary are studied. Thirty-four heavy minerals have been identified, with an average content of 1.92%. Major minerals include magnetite, epidote, hematite, hornblende, ilmenite, and zircon mica. These types are the same as those in the 0.063~0.125 mm range; however, the average content is lower, which reveals that the heavy minerals in Minjiang Estuary are mainly enriched in the very-fine sand fraction. According to the content and distribution characteristics of the major heavy minerals, Minjiang Estuary can be divided into 4 mineral assemblage zones. In each zone the assemblage of heavy minerals is greatly affected by the hydrodynamic condition and the sedimentary environment. Heavy mineral types also show that detrital matters in Minjiang Estuary are originated from the weathering and erosion of the bedrock in the Minjiang River drainage area. |
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