Paleoenvironment interpretation of a 1760 years B.P. old sediment in a mangrove area of the Bay of Guanabara, using pollen analysis
Paleoenvironment interpretation of a 1760 years B.P. old sediment in a mangrove area of the Bay of Guanabara, using pollen analysis
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DOI：
10.1590/s0001-37652006000200004
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发表时间：
2006-06-01
期刊：
影响因子：
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通讯作者：
Barros, Marcia A.
中科院分区：
文献类型：
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作者：
Barth, Ortrud M.;São-Thiago, Luiz E.U.;Barros, Marcia A.
从瓜纳巴拉湾 Guapimirim 红树林的钻芯顶部 122 厘米处获取沉积物样本，并使用花粉分析进行分析。这个泥泞的核心到达 133 厘米处的沙地。 C-14 数据统计法案的年龄为 1760 +/- 50 年 B.P.最常见的花粉粒是红树种Rhizopllora mangle、Lagunularia racemosa 和Avicennia schaueriana。 “Restinga”和热带雨林植被在红树林后面得到了认可。在距今 2500 年的最后一次海侵之后，水位下降到实际大小，使得红树林得以生长。
A sediment sample was obtained at 122 cm from the top of a drilling core in the Guapimirim mangrove, Bay of Guanabara, and analyzed using pollen analysis. This muddy core reached a sandy ground at 133 cm. C-14 datation act the age of 1760 +/- 50 years B.P. The most frequent pollen grains were mangrove species of Rhizopllora mangle, Laguncularia racemosa and Avicennia schaueriana. "Restinga" and tropical rain forest vegetation was recognized behind the mangrove. After the last sea transgression at 2500 years B.P., the water level lowered to its actual size, allowing the installation of this mangrove.