台湾海峡西北部表层沉积孢粉分布规律及其地质意义

荆夏; 陈芳; 李顺; 孙桂华; 崔兆国; 钟和贤

doi:10.3724/SP.J.1140.2014.05081

台湾海峡西北部表层沉积孢粉分布规律及其地质意义

国土资源部海底矿产资源重点实验室广州海洋地质调查局, 广州 510075

基金项目:

中国地质调查局项目(1212011220118)

详细信息

作者简介:
荆夏(1985-),女,助理工程师,从事第四纪孢粉研究,E-mali:jx_13510@163.com

中图分类号: P736.22
计量
- 文章访问数: 1836
- HTML全文浏览量: 249
- PDF下载量: 64
出版历程
- 收稿日期: 2013-12-08
- 修回日期: 2014-03-20

DISTRIBUTION PATTERN OF SPOROPOLLEN IN SURFACE SEDIMENTS OF NORTHWESTERN TAIWAN STRAIT AND ITS GEOLOGICAL SIGNIFICANCE

Key Laboratory of Marine Mineral Resources, Guangzhou Marine Geological Survey, MLR, Guangzhou 510075, China

摘要

摘要: 通过对台湾海峡西北部莆田海域沿海338个表层沉积物样品中孢粉的分析,探讨其分布规律及影响因素、孢粉源区、传播机制和沉积环境。研究区内孢粉的分布可划分为沿北西-南东方向展布的4个孢粉区,呈现出高值低值交替分布的状态。孢粉丰度变化受水深和沉积物粒度影响较大。各类孢粉分布的控制因素有所不同。松属花粉的分布受到东北季风和海湾地形的综合影响;栎属等热带亚热带花粉则以河流和沿岸流为主要传播动力;蕨类孢子普遍的高丰度可能是由于其本身易于被海流携带传播,以及人类活动的影响导致沿岸地区蕨类植物广布,从而为其提供了丰富来源,沿岸流可能也为蕨类孢子带来了新来源;以禾本科为主的草本花粉由于不易传播,主要来自于沿岸地区的草本植被。河口或环岸带发生的絮凝作用有利于孢粉的沉积。近海带由于水动力条件减弱,孢粉随着悬浮物的沉积而大量沉积下来。
- 孢粉 /
- 表层沉积 /
- 地质意义 /
- 台湾海峡
Abstract: Palynological investigation for 338 surface sediment samples taken from the northwestern Taiwan Strait have been conducted in order to reveal the distribution patterns of pollen and spore. The dissemination process and source area of pollen and spore, as well as the local depositional environment are discussed in this paper. Based on the total, arboreal, herbaceous and fern pollen concentrations, the distribution of surface pollen assemblages could be classified into four regions in NW-SE direction. Pollen abundance is mainly affected by water depth and the grain size of sediments. The distribution of Pinus is influenced by the combined effects of the northeast monsoon and topography, while tropical and subtropical arboreal pollen, such as Quercus, is mainly influenced by coastal currents and rivers. Fern spores exhibited higher abundance, probably influenced by ocean currents, coastal currents and human activities. Herbaceous pollen occurs in high percentage around the coasts close to the source areas. The estuaries and coastal regions are the important depositional zones for terrestrial pollen grains due to flocculation.
- sporopollen /
- surface sediments /
- geological significance /
- Taiwan Strait

HTML全文

参考文献(18)

[1]	童国榜, 陈亮, 龙江平, 等. 北部湾东部表层孢粉沉积特征及其沉积动力环境[J].科学通报, 2012, 57(9):743-752. [TONG Guobang, CHEN Liang, LONG Jiangping, et al. Surface pollen distribution patterns in Beibu Gulf and corresponding sediment dynamics environment[J]. China Science Bulletin, 2012, 57(9):743-752.]
[2]	戴璐, 翁成郁, 陆钧, 等. 南海北部表层沉积物的孢粉分布及其传播机制[J]. 海洋地质与第四纪地质, 2012, 32(4):93-108. [DAI Lu, WENG Chengyu, LU Jun, et al. Pollen and spore distribution in the surface sediments of the northern South China Sea and their transportation[J]. Marine Geology and Quaternary Geology, 20123, 32(4):93-108.]
[3]	张玉兰, 张卫东, 王开发, 等. 南海东北部表层沉积的孢粉与陆缘植被关系的研究[J]. 海洋通报, 2002, 21(4):28-36. [ZHANG Yulan, ZHANG Weidong, WANG Kaifa, et al. Studies on the relationship between sporo-pollen of surface sediments and vegetation of the continental margin in the northeastern South China Sea[J]. Marine Science Bulletin, 2002, 21(4):28-36.]
[4]	罗传秀, 陈木宏, 刘建国, 等. 广东沿海及海南岛东南部海底表层孢粉分布及其环境意义[J]. 热带海洋学报, 2012, 31(2):55-61. [LUO Chuanxiu, CHEN Muhong, LIU Jianguo, et al, Pollen distribution in marine surface sediments of Guangdong coast and southeast Hainan Island and its environmental significance[J]. Journal of Tropical Oceanography, 2002, 21(4):28-36.]
[5]	张玉兰, 龙江平. 海南岛周边近海表层沉积中的孢粉及其与周边植被的关系[J]. 海洋学研究, 2007, 25(3):23-31. [ZHANG Yulan, LONG Jiangping. Studies on the relationship between sporo-pollen of submarine surface sediments and vegetation around Hainan Island[J]. Journal of Marine Sciences, 2007, 25(3):23-31.]
[6]	陈炽新, 邓韫, 郑卓, 等. 香港-大亚湾近岸海域表层沉积物的孢粉分布规律[J]. 热带海洋学报, 2004, 23(2):76-81. [CHEN Chixin, DENG Yun, ZHENG Zhuo, et al. Distribution characteristics of pollen and spore in surface sediments of nearshore waters between Hongkong and Daya Bay[J]. Journal of Tropical Oceanography, 2004, 23(2):76-81.]
[7]	王开发, 蒋辉, 张玉兰. 南海及沿岸地区第四纪孢粉藻类与环境[M]. 上海:同济大学出版社, 1990.[WANG Kaifa, JIANG Hui, ZHANG Yulan. Quaternary Spores, Pollen and Algae from the Nanhai Sea and the Coastal Region and Their Environments[M]. Shanghai:Tongji University Press, 1990.]
[8]	Luo C, Chen M, Xiang H, et al. Characteristics of modern pollen distribution in surface sediment samples for the northern South China Sea from three transects[J]. Quaternary International, 2013, 286:148-158.
[9]	Sun X, Li X, Hans-Jurgen Beug. Pollen distribution in hemipelagic surface sediments of the South China Sea and its relation to modern vegetation distribution[J]. Marine Geology, 1999, 156:211-226.
[10]	Dai L, Weng C, Lu J, et al. Pollen quantitative distribution in marine and fluvial surface sediments from the northern South China Sea:New insights into pollen transportation and deposition mechanisms[J]. Quaternary International, 2013, 1-14.
[11]	孙湘君, 李逊. 南海现代花粉传播动力与途径在南北海域的差异[J]. 中国科学D辑, 1997, 41(6):494-498. [SUN Xiangjun, LI Xun. Different dynamics and routes of modern pollen transport in the northern and southern parts of the South China Sea[J]. Science China (Series D), 1997, 41(6):494-498.]
[12]	杨蕉文. 闽南沿海平原全新世孢粉组合及其意义[J]. 东海海洋, 1994, 12(4):26-34. [YANG Jiaowen. The spore-pollen assemblage of the Holocene sediments and its significance at coastal plain in southern Fujian[J]. Donghai Marine Science, 1994, 12(4):26-34.]
[13]	吴学忠. 闽中沿海若干沉积物样品的孢粉组合[J]. 台湾海峡, 1994, 13(1):94-100. [WU Xuezhong. Sporo-pollen assemblage in some sedimentary samples in middle Fujian Coast[J]. Journal of Oceanography in Taiwan Strait, 1994, 13(1):94-100.]
[14]	王开发, 陆继军, 郑玉龙. 福建沿岸晚第四纪孢粉、硅藻组合及其古环境意义[J]. 微体古生物学报, 1995, 12(4):388-397. [WANG Kaifa, LU Jijun, ZHENG Yulong. Late Quaternary pollen-diatom assemblages along Fujian seashore and their paleoenvironmental implications[J]. Acta Micropalaeotologica Sinica, 1995, 12(4):388-397.]
[15]	吴征镒. 中国植被[M]. 北京:科学出版社. 1980:871-872.[WU Zhengyi. Vegetation of China[M]. Beijing:Science Press, 1980:871 -872.]
[16]	周洋, 陈芳, 孙桂华, 等. 台湾海峡西北部平潭岛海域表层沉积物中底栖有孔虫分布及其环境控制因素[J]. 微体古生物学报, 2014, 131(待刊).[ZHOU Yan, CHEN Fang, SUN Guihua, et al. Benthic foraminifera distribution in surface sediments of the northern-west Taiwan Strait near the Pingtan Island and its environmental control factors[J]. Acta Micropalaeotological Sinica, 2014, 131(in press).]
[17]	孙湘平. 中国近海区域海洋[M]. 北京:海洋出版社, 2006:98.[SUN Xiangping. Regional Oceanography in China offshore Areas[M]. Beijing:China Ocean Press, 2006:98.]
[18]	郑卓, 王建华. 珠江三角洲北部晚第四纪孢粉植物群的古环境意义[J]. 热带海洋, 1998, 17(3):1-9. [ZHENG Zhuo, WANG Jianhua. Paleoenvironment significance of late Quaternary pollen flora in northern Zhujiang River Delta[J]. Tropical Oceanology, 1998, 17(3):1-9.]