首页 | 本学科首页   官方微博 | 高级检索  
     检索      

Evidences of Holocene transgression on Domingos Petrolini Swamp, southern coastal plain, Rio Grande do Sul, Brazil
作者姓名:Soraia  G.  Bauermann  Paulo  C.  P.  Neves  Marleni  Marques-Toigo  Abdul  R.  Ashraf
作者单位:[1]Laboratory of Palynology - Lutheran University, Canoas/RS, CEP 92.420-280, Brazil [2]Institute of Geosciences, Federal University of Rio Grande do Sul, CEP 91501-970, Brazil (in memoriam ) [3]Institute of Geosciences, University of Tuebingen, Tuebingen D-72076, Germany
摘    要:

关 键 词:海侵  沉积物  巴西  生物层  水动力学
文章编号:1008-0503(2005)01/02-0098-06
收稿时间:2005-01-25

Evidences of Holocene transgression on Domingos Petrolini Swamp, southern coastal plain, Rio Grande do Sul, Brazil
Soraia G. Bauermann Paulo C. P. Neves Marleni Marques-Toigo Abdul R. Ashraf.Evidences of Holocene transgression on Domingos Petrolini Swamp, southern coastal plain, Rio Grande do Sul, Brazil[J].Journal of Geoscientific Research in Northeast Asia,2005,8(1):98-103.
Abstract:The Domingos Petrolini Swamp, located on the Southern Coastal Plain of Rio Grande do Sul, near the town of Rio Grande, constitutes an ample holocene lagoonal deposit. Events related to the holocene transgression and their diverse phases of glacial-eustatic ocillations were found through palynological analysis. Bases on these palynological data, four distinct phases to the paleoenvironmental evolution of the ecosystem were identified. It has also shown a transgressive restricted marine sequence on the base, which suggests the existence of a coastal brackish lagoon or a marisme type of environment. Later, there was a gradation for continentality conditions along with a scarce pollinical record. The third phase is characterized by the presence of marine components and halophyte vegetation, showing another transgressive event in that place. Lastly, the end of direct marine influence over the swamp was recorded and also the vegetation development as it appears these days.
Keywords:paleoenvironmental  lagoonal deposits  holocen transgression
本文献已被 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号