Grain size characteristics and sedimentary environment of surface sediments in outer bay waters of Qinzhou Bay in Guangxi
PANG Guotao1,2, LI Wei1, ZENG Jiao1, XIE Lei1, HU Yanbin1,3, ZHANG Shengyuan1
1. Yantai Geological Survey center of Coastal Zone, China Geological Survey, Shandong Yantai 264000,China; 2. Key Laboratory of Natural Resource Coupling Process and Effects, Beijing 100055, China; 3. College of Earth Science and Engineering, Shandong University of Science and Technology, Shandong Qingdao 266590, China
Abstract：The sediment particle size composition is a clear indicator of sedimentation, sedimentary environment, and sedimentary dynamic conditions. In order to understand the sedimentary characteristics of the outer bay waters of Qinzhou Bay in Guangxi, 167 sets of surface sediment samples were measured for particle size, and analyzed for particle size parameter characteristics to divide the sediment types. The Pejrup triangle map was used for the partition of the sedimentary dynamic environment of the outer bay waters of Qinzhou Bay, and Gao-Collins particle size trend analysis method was used to summarize the migration trend of surface sediments in the study area. The results show that the surface sediments in the outer bay waters of Qinzhou Bay is mainly composed of silt and sand, with poor sorting ability. According to the Folk-Ward classification method, the authors divided the surface sediments in the outer bay waters of Qinzhou Bay into 12 types, and sandy silt, sandy mud and silt were the most widely distributed, accounting for 22.16%, 17.37%, and 14.97% of the total sample size, respectively. The analysis of sedimentary dynamics indicates that the sedimentary environment in the study area is complex, and the hydrodynamic forces is strong, which are generally characterized by a gradual weakening outward from the bay mouth. The trend analysis of particle size indicates that the sediment in the study area migrates towards the bay mouth and tidal deep channel (channel) as a whole. Comprehensive analysis shows that the sedimentary environment in the study area is mainly influenced by tidal currents, waves, and human activities. The research results could provide scientific references for port construction and the expansion of deepwater waterways.
庞国涛, 李伟, 曾蛟, 谢磊, 胡延斌, 张胜远. 广西钦州湾外湾海域表层沉积物粒度特征及沉积环境[J]. 中国地质调查, 2024, 11(1): 65-74.
PANG Guotao, LI Wei, ZENG Jiao, XIE Lei, HU Yanbin, ZHANG Shengyuan. Grain size characteristics and sedimentary environment of surface sediments in outer bay waters of Qinzhou Bay in Guangxi. , 2024, 11(1): 65-74.
[1] Ramesh R,Chen Z,Cummins V,et al.Land-Ocean Interactions in the Coastal Zone:Past,present & future[J].Anthropocene,2015,12:85-98. [2] 陈则实,王文海,吴桑云.中国海湾引论[M].北京:海洋出版社,2007. Chen Z S,Wang W H,Wu S Y.An Introduction to The Gulf of China[M].Beijing:China Ocean Press,2007. [3] 沈焕庭,朱建荣.论我国海岸带陆海相互作用研究[J].海洋通报,1999,18(6):11-17. Shen H T,Zhu J R.The land and ocean interactions in the coastal zone of China[J].Marine Science Bulletin,1999,18(6):11-17. [4] 李东义,徐勇航,王爱军,等.福建安海湾表层沉积物粒度特征及其现代沉积过程分析[J].沉积学报,2015,33(4):724-734. Li D Y,Xu Y H,Wang A J,et al.Analysis of surface sediment grain size characteristics and modern sedimentary process in Fujian Anhai Gulf[J].Acta Sedimentologica Sinica,2015,33(4):724-734. [5] Gao S,Collins S.Analysis of grain size trends,for defining sediment transport pathways in marine environments[J].Journal of Coastal Research,1994,10(1):70-78. [6] Wided S,Jalila S,Kamel R.Grain size analysis and characterization of sedimentary environment along the Bizerte Coast,N-E of Tunisia[J].Journal of African Earth Sciences,2021,184:104353. [7] 潘隆,方晶,田立柱,等.天津南港工业区海区表层沉积物粒度特征及沉积环境分析[J].应用海洋学学报,2018,37(4):462-471. Pan L,Fang J,Tian L Z,et al.Grain size characteristics of surface sediments and the response to sedimentary environment in the coastal waters of Tianjin Nangang Industrial Zone in Bohai Bay[J].Journal of Applied Oceanography,2018,37(4):462-471. [8] 郝连成,远继东,郑立龙,等.湛江湾海域表层沉积物粒度特征及沉积环境[J].海洋地质前沿,2022,38(8):1-10. Hao L C,Yuan J D,Zheng L L,et al.Grain-size characteristics of surface sediment and sedimentary environment in Zhanjiang Bay[J].Marine Geology Frontiers,2022,38(8):1-10. [9] 瞿洪宝,苟鹏飞,孙龙飞,等.海南岛崖州湾表层沉积物空间分布特征及其受控机制[J].海洋学报,2021,43(12):70-81. Qu H B,Gou P F,Sun L F,et al.Spatial distribution and its controlling mechanism of surface sediments in the Yazhou Bay,Hainan Island[J].Acta Oceanologica Sinica,2021,43(12):70-81. [10] 王天娇,马宏伟,倪金,等.金州湾表层沉积物粒度特征及沉积环境[J].应用海洋学学报,2021,40(4):669-677. Wang T J,Ma H W,Ni J,et al.Grain size characteristics and sedimentary environment of surface sediments in Jinzhou Bay[J].Journal of Applied Oceanography,2021,40(4):669-677. [11] 周笑笑,陈秀玲,范逸飞,等.福建近岸罗源湾沉积环境及表层沉积物物质来源探讨[J].第四纪研究,2021,41(5):1281-1293. Zhou X X,Chen X L,Fan Y F,et al.Discussion on the sedimentary environment and provenance of surface sediment in Luoyuan Bay offshore of Fujian Province[J].Quaternary Sciences,2021,41(5):1281-1293. [12] 庄海海,徐绍辉,高茂生,等.胶州湾表层沉积物粒度特征及其沉积环境[J].海洋地质前沿,2018,34(9):24-31. Zhuang H H,Xu S H,Gao M S,et al.Grain size distribution of surface sediments in Jiaozhou Bay and its environmental significance[J].Marine Geology Frontiers,2018,34(9):24-31. [13] 肖晓,冯秀丽,石要红,等.广西沿岸海域表层沉积物粒度分布与输运特征[J].中国海洋大学学报,2018,48(7):65-72. Xiao X,Feng X L,Shi Y H,et al.Sediment grain size characteristics and transport patterns in the Guangxi coastal water[J].Periodical of Ocean University of China,2018,48(7):65-72. [14] 夏真,林进清,梁开,等.广西典型近岸海域表层沉积物碎屑矿物分布及其物源意义[J].中国地质调查,2017,4(2):66-72. Xia Z,Lin J Q,Liang K,et al.Distribution and provenance significance of detrital minerals in surface sediments under typical coas-tal water areas,Guangxi[J].Geological Survey of China,2017,4(2):66-72. [15] 张伯虎,陈沈良,刘焱雄,等.广西钦州湾海域表层沉积物分异特征与规律[J].热带海洋学报,2011,30(4):66-70. Zhang B H,Chen S L,Liu Y X,et al.Sediment characteristics and differentiation in the Qinzhou Bay,Guangxi,China[J].Journal of Tropical Oceanography,2011,30(4):66-70. [16] 夏真,林进清,郑志昌,等.北部湾广西海岸带地质环境综合监测进展及成果[J].中国地质调查,2016,3(1):52-57. Xia Z,Lin J Q,Zheng Z C,et al.Progress and achievements of integrated geo-environmental monitoring along Guangxi coastal zone,Beibu gulf[J].Geological Survey of China,2016,3(1):52-57. [17] 马胜中,梁开,陈太浩.广西钦州湾浅层埋藏古河道沉积特征[C]//第十四届中国海洋(岸)工程学术讨论会论文集(下册).呼和浩特:海洋出版社,2009:1225-1229. Ma S Z,Liang K,Chen T H.Sedimentary characteristics of shallow buried paleohe channels in Qinzhou Bay,Guangxi[C]//Proceedings of the 14th Symposium on Oceanographic (Shore) Engineering in China:Part 2.Hohhot:China Ocean Press,2009:1225-1229. [18] 中华人民共和国国家质量监督检验检疫总局.GB/T 12763.8—2007海洋调查规范第8部分海洋地质地球物理调查[S].北京:中国标准出版社,2008. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China.GB/T 12763.8—2007 Specifications for Oceanographic Survey-Part 8:Marine Geology and Geophysics Survey[S].Beijing:Standards Press of China,2008. [19] Folk R L,Ward W C.Brazos river bar [Texas]:A study in the significance of grain size parameters[J].Journal of Sedimentary Research,1957,27(1):3-26. [20] McManus J.Grain Size Determination and Interpretation[M]//Tucker M.Techniques in Sedimentology.Oxford:Blackwell,1988:63-85. [21] Gao S,Collins M.Net sediment transport patterns inferred from grain-size trends,based upon definition of “transport vectors”-reply[J].Sedimentary Geology,1994,90(1-2):157-159. [22] Pejrup M.The Triangular Diagram Used for Classification of Estuarine Sediments:A New Approach[M].Oxford:Pergamon Press,1988. [23] 张爱梅,陈敏,甘华阳,等.北部湾SO-50柱状沉积物地球化学特征及其物源分析[J].海洋学报,2018,40(5):107-117. Zhang A M,Chen M,Gan H Y,et al.Geochemical characteristics and sediment provenance of Core SO-50 sediments in the Beibu Gulf[J].Acta Oceanologica Sinica,2018,40(5):107-117. [24] 董德信,李谊纯,陈宪云,等.钦州湾潮流季节变化特征[J].广西科学,2014,21(4):351-356. Dong D X,Li Y C,Chen X Y,et al.Characteristics of current seasonal changes in Qinzhou bay[J].Guangxi Sciences,2014,21(4):351-356. [25] 夏真,林进清,郑志昌,等.北部湾广西近岸海洋地质环境综合研究[M].北京:海洋出版社,2019. Xia Z,Lin J Q,Zheng Z C,et al.Comprehensive Study on Marine Geological Environment of Guangxi Coastal Area in Beibu Gulf[M].Beijing:China Ocean Press,2019. [26] 中国海湾志编纂委员会.中国海湾志-第十二分册-广西海湾[M].北京:海洋出版社,1993. Editiorial Committee of Chinese Gulf.Chinese Gulf:vol.12[M].Beijing:China Ocean Press,1993. [27] 张亮,梁开,甘华阳,等.广西防城港海域沉积物特征及输运趋势[J].热带地理,2014,34(5):690-695. Zhang L,Liang K,Gan H Y,et al.Sediment Characteristics And Transport Trends In The Sea Area Of Fangcheng Port,Guang-xi[J].Tropical Geography,2014,34(5):690-695. [28] 许冬,葛倩,韩喜彬,等.海洋沉积源-汇过程的驱动因素:以北部湾为例[J].海洋学研究,2022,40(3):17-32. Xu D,Ge Q,Han X B,et al.Driving force of marine sedimentary source to sink:A case study from Beibu Gulf[J].Journal of Marine Sciences,2022 40(3):17-32. [29] 莫永杰. 北部湾北部浅海沉积物的粒度类型[J].热带海洋,1990,9(1):87-93. Mo Y J.Grain size types of sediments of the shallow waters in northern Beibu gulf[J].Tropic Oceanology,1990,9(1):87-93. [30] 孙永根,丰爱平,王恩康,等.钦州湾悬浮泥沙特征[J].海洋地质与第四纪地质,2016,36(1):79-86. Sun Y G,Feng A P,Wang E K,et al.Characters of the suspended load in Qinzhou Bay[J].Marine Geology & Quaternary Geology,2016,36(1):79-86. [31] 黎广钊,梁文,刘敬合.从沉积物中重矿物动力分区论钦州湾泥沙来源及运移趋势[J].海洋通报,2002,21(5):61-68. Li G Z,Liang W,Liu J H.Disscution on the source and transport tendency of silt in the Qinzhou Bay in terms of the dynamic partition zones of havey minerals in the sediments[J].Marine Science Bulletin,2002,21(5):61-68. [32] 曹超,吴承强,蔡锋,等.钦州湾外湾水下地形地貌特征及沉积物来源[J].应用海洋学学报,2020,39(3):378-388. Cao C,Wu C Q,Cai F,et al.Characteristics of submarine topography geomorphology and sediments sources in outer Qinzhou Bay[J].Journal of Applied Oceanography,2020,39(3):378-388.
2024, Vol. 11 
