| 南海珠江口伶仃洋浅层沉积硅藻的研究 |
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| 引用本文： | 齐雨藻,林兰英,张子安,何锐如.南海珠江口伶仃洋浅层沉积硅藻的研究[J].暨南大学学报,1988(3). |
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| 作者姓名： | 齐雨藻 林兰英 张子安 何锐如 |
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| 作者单位： | 暨南大学生物系，暨南大学生物系，暨南大学生物系，广州地理研究所 |
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| 摘 要： | 在珠江口和南中国海伶仃洋的六个岩芯中,发现线纹小环藻组群(CyclotelIa striata complex)在各地层中均有分布,其数量由下层到上层呈递减的趋势。对各采集点样品进行多样性指数分析和聚类分析的结果表明,埋深为316—326cm处沉积硅藻的多样性指数最大,为2.09,111—125cm处最小,为0.36;在所有采样点中,有四对采样点相近程度大,环境条件应较为相近。
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| 关 键 词： | 化石硅藻 克氏短缝藻中华变种 粗纹藻偏称变种 薄翼斜弯藻疏纹变种 舟形菱形藻珠江变种 |
Studes on Sedi entd Diatoms of L ngdng Gulf South China Sea |
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| Qi yuzao Lin Lanying Zhang Zian He Ruiru.Studes on Sedi entd Diatoms of L ngdng Gulf South China Sea[J].Journal of Jinan University(Natural Science & Medicine Edition),1988(3). |
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| Authors: | Qi yuzao Lin Lanying Zhang Zian He Ruiru |
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| Abstract: | There are 125 diatom taxa obtained from 6 short cores, out of the Pearl River estuary and in Lingding Gulf, Guangdong costline, South China Sea. Cyclotella striata complex is a dominant taxon found at almost every site. Its biostratigraphic characteristics show that the species decreases in quantity upwards in the sediments.Diversities and cluster analysis for samples have been calculated. The ecological characteristics of the fossil diatom assemblages in the cores are compared. Four diatom taxa are reported as new in science. |
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| Keywords: | Fossil diatoms Eunotia clevei vat sinica Qi Lin et He var nov Trachyneis aspera var assymetrica Qi Lin et Zhang var nov Plagiotropis lepdoptera var scattestriata Qi Lin et Zhang var nov Nitzschia navicularis var pearlensis Qi Lin |
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