我国苏北建川潮汐盐沼有孔虫垂直分带的发现和特征

尤坤元; 陈才俊; 吴小根; 施丙文

我国苏北建川潮汐盐沼有孔虫垂直分带的发现和特征

1.
南京大学海岸与海岛开发国家试点实验室, 江苏, 南京, 210008
2.
江苏省滩涂开发投资公司, 江苏, 南京, 210013

基金项目: 国家自然科学基金资助项目(49671071);国家“九五”科技攻关资助项目

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出版历程
- 收稿日期: 2001-06-08
- 修回日期: 2001-07-23

Discovery and features of vertical zonations of tidal salt-marsh foraminifera in Jianchuan, North Jiangsu Province, China

1.
State Pilot Laboratory of Coast & Island Exploitation, Nanjing University, Nanjing 210008, China
2.
Exploitation and Investment Company of Tidalflat, Jiangsu Province, Nanjing 210013, China

摘要

摘要: 通过三个断面加密有孔虫表层采样和精确高程测量,发现建川开敞型盐沼存在特征性盐沼有孔虫组合,这些组合与盐沼植被带相应,受高程控制,有明显的垂直分带,垂直带顶面即最高高潮位以上有孔虫突然消失.这个有孔虫垂直分布模式可高精度地恢复古海面(精度最高可达±5cm).该研究为我国高分辨恢复古海面提供了一个地区性的现代有孔虫标尺,同时该工作也填补了国外仅局限于研究隐蔽型海岸盐沼有孔虫垂直分带的不足.
- 苏北建川 /
- 开敞型盐沼 /
- 有孔虫垂直分带 /
- 古海面高分辨标尺
Abstract: Through densified surface sampling of foraminifer a and accurate elevation measurement along three transectlines in open-coast tidal sal-tmarsh of Jianchuan,particular sal-tmarsh foraminifera assemblages were found. The sal-tmarsh foraminifera assemblages are distributed in well-defined vertical zonations with respect to elevation and closely parallel marsh floral zonations.At the top of the vertical zonation all foraminifera disappear abruptly which are accurately located at the highest high water datum.This distribution pattern can be used to relocate the former sea levels accurately(to an accur acy of within ±5 cm).A modern regional criterion of foraminifera for relocating the former sea levels in high resolution in our country is provided,and deficiencies of studying the vertical zonation only in sheltered coast sal-tmarsh abroad are filled up.
- Jianchuan of North Jiangsu Province /
- open-coast tidal sal-tmarsh /
- vertical zonation of foraminifera /
- high resolution criterion for the former sea levels

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参考文献(21)

SCOTT D B, MEDIOLI F S. Vertical zonations of marsh foraminifera as accurate indicators of former sea-levels[J]. Nature, 1978, 272(5653):528～531.

SCOTT D B, MEDIOLI F S. Quantitative studies of marsh foraminiferal distributions in Nova Scotia:implications for sea level sdudies[J]. Cushman Foundation for Foraminiferal Research(Special Publication), 1980, 17:1～58.

SCOTT D B, WILLIAMSON M A, DUFFETT T E. Marsh foraminifera of Prince Edward Island:their recent distribution and application for former sea level studies[J]. Maritime Sediments and Atlantic Geology, 1981, 17:98～129.

SMITH D A, SCOTT D B, MEDIOLI F S. Marsh foraminifera in the Bay of Fundy:modern distribution and application to sea-level determinations[J]. Maritime Sediments and Atlantic Geology, 1984, 20:127～142.

GUILBAULT J-P, CLAGUE J J, LAPOINTE M. Amount of subsidence during a late Holocene earthquake-evidence from fossil tidal marsh foraminifera at Vancouver Island, west coast of Canada [J]. Palaeogeography, Palaeoclimatology,Palaeoecology, 1995, 118:49～71.

SCOTT D B, HASEGAWA S, SAITO T, et al. Marsh foraminiferal and vegetation distributions in Nemuro Bay wetland areas, eastern Hokkaido[J]. Transactions and Proceedings of the Paleontological Society of Japan, 1995, 180:282～295.

HAYWARD B W, GRENFELL H R, SCOTT D B. Tidal range of marsh foraminifera for determining former sea-level heights in New Zealand[J]. New Zealand Journal of Geology &Geophysics, 1999, 42:395～413.

KLEIN G D, EPILOGUE. Ginsburg R N, ed. Tidal Deposits[M]. New York:Springer, 1975. 407～410.

任美锷,张忍顺,杨巨海.江苏王港地区淤泥质潮滩的沉积作用[J].海洋通报,1984,3(1):40～54

洪雪晴东、黄海沿岸滨海沼泽现代有孔虫分布及其地质意义[A].严钦尚,许世远.长江三角洲现代沉积研究[M]上海:华东师范大学出版社,1987 306～313.

吴乃琴,汪品先.我国海岸带胶结壳有孔虫分布的控制因素[J]科学通报,1989,12:924～927

吴乃琴弱海相性有孔虫群的特征及其代表的沉积环境[J].第四纪研究,1993,3:267～279

尤坤元,朱大奎,施晓冬.潮汐盐沼环境特点及高分辨率海面变化有孔虫标尺[J]地理科学,1999,19(3):277～28l

JENNINGS A E, NELSON A R. Foraminiferal assemblage zones in Oregon tidal marshes-relation to marsh floral zones and sea level[J]. Journal of Foraminiferal Research, 1992, 22(1):13～29.

SCOTT D B, GREENBERG D A. Relative sea-level rise and tidal development in the Fundy tidal system[J]. Canadian Journal of Earth Sciences, 1983, 20:1 554～1 564.

SCOTT D B, GAYES P T, COLLINS E S. Mid-Holocene precedent for a future rise in sea-level along the Atlantic coast of North America[J]. Journal of Coastal Research, 1995, 11(3):615～622.

SCOTT D B, COLLINS E S, DUGGAN J, et al. Pacific rim marsh foraminiferal distributions:implications for sea-level studies[J]. Journal of Coastal Research, 1996, 12(4):850～861.

汪品先,闵秋宝,卞云华我国东部第四纪的海陆过渡相地层[J]中国第四纪研究,1985,6(1):35～43

汪品先,闵秋宝,卞云华南黄海西北部底质中有孔虫、介形虫分布规律及其地质意义[A]同济大学海洋地质系海洋微体古生物论文集[C]北京:海洋出版社,1980.61～83.

王建,沙润,汪永进,等.江苏中部粉砂淤泥质滩岸大剖面所揭示的滩岸发育过程与环境演变[J].沉积学报,1997,15(增刊):51～56.

李道高,郭永盛鲁东南滨海平原全新世海进地层研究[J].海洋学报,1995,17(5):103～111

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