【摘要】 本文对闽江口琅岐诸岛海域（26°00′～26°15′N,119°30′—119°49′E）表层沉积物中10种化学成分的平面分布作了描述,探讨了影响化学成分分布格局的主要控制因素及化学成分间的相关性。C_org、N、P、Fe、Al、Ti、Mn、Mg等元素在川石岛东侧及其周围水域形成低值区,并以扇形向海输移扩展,含量递增,但各元素的扩展趋势有所差异;Ca和碳酸盐的低值区从河口向外扩展至川石岛周围,并在北部海域形成高值。更多还原

【Abstract】 Based on data collected in the sea area of the Langqi Island and its ncarhy islets (26°00’-15’N, 119°30’-49’E) the contents and distribution of ten chemical compositions are described and their control factors are discussed.The contents of Corg and Al are high and the contents of Ca, Mg and carhonate arc low in sediments, with a significant low ratio of 0. 81 of Mg/Al, which reflect the characteristics of them in the sea area of the islands in the Minjiang Estuary.The horizontal distributions of Corg, N, P, Fe, Al, Ti, Mn.and Mg show that there exists a region of low contents in the east side or periphery of Chuanshi Island, and the contents of them fan out seawards from low to high. Of each composition the trend of expansion is some what different. As to Ca and carbonate the low content region expands from outfall to periphery of the Chuanshi Island and then contents increase northeastward by north, as results in a level of high contents in the northern investigation sea area.更多还原