Holocene palynology and sea-level change in two estuaries in Southern Irian Jaya
Holocene palynology and sea-level change in two estuaries in Southern Irian Jaya
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DOI：
10.1016/j.palaeo.2005.01.008
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发表时间：
2005-05-13
影响因子：
3
通讯作者：
Ellison, J
中科院分区：
文献类型：
--
作者：
Ellison, J
新几内亚南部引导澳大利亚大陆板块汇聚形成新几内亚高地。广阔的潮间三角洲是赤道低梯度海岸线的典型特征。在Irian Jaya（西巴布亚）的两个相邻河口，本研究利用河口岩心花粉图的红树林物种带的当前高度作为全新世海平面的有限指标。所有的岩心都显示红树林的水平远低于目前的潮汐差，随着时间的推移，向陆的物种区被向海的物种区所取代。结果表明，该地区近期发生构造沉降，晚全新世相对海平面上升0.67 mm /年（-1）。(c) 2005 Elsevier B.V.版权所有
Southern New Guinea leads the continental Australian plate into convergence to form the New Guinea Highlands. Extensive inter-tidal deltas are typical of much of this low gradient equatorial coastline. In two adjacent estuaries in Irian Jaya (West Papua), this study uses present elevations of mangrove species zones as a finite indicator of Holocene sea levels from pollen diagrams of estuarine cores. All cores showed mangroves at levels well below the present tidal range, with landward species zones being replaced over time by seaward zones. Results show tectonic subsidence in the recent period, with Late Holocene relative sea-level rise of 0.67 mm year(-1). (c) 2005 Elsevier B.V. All rights reserved.