A review of the ecological affinities of marine organic microfossils from a Holocene record offshore of Adélie Land (East Antarctica)
A review of the ecological affinities of marine organic microfossils from a Holocene record offshore of Adélie Land (East Antarctica)
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阿德利地（南极洲东部）近海全新世记录海洋有机微化石的生态亲和力综述
DOI：
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发表时间：
2018
影响因子：
2
通讯作者：
F. Sangiorgi
中科院分区：
文献类型：
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作者：
J. Hartman;P. Bijl;F. Sangiorgi
摘要。综合海洋钻探计划（IODP） 318远征队在U1357遗址发现了一段长约170米的全新世富有机质沉积层序。该地点位于靠近南极边缘的狭窄而深的adsamlie盆地内，沉积物沉积速率异常高，这导致了有机沉积成分的异常保存。在这里，我们概述了74种不同的主要是海洋微化石分类群和/或类型，这些分类群和/或类型是在沉积物的有机成分中发现的，其中包括来自三个真核生物王国（染色质、植物和动物界）的单细胞和高等生物的遗骸。这些遗骸包括浮游植物（光养鞭毛藻和裸藻）和非常多样化的浮游动物（异养鞭毛藻、丁宁类、桡足类）生物。我们通过提供形态学细节和摄影图像来说明每一个海洋微化石分类群或类型，这将有助于在未来的研究中对其进行识别。我们还回顾了它们的生态偏好，以帮助未来的（古）生态和（古）环境研究。浮游生物组合显示出高度的地方性，这与海冰系统对U1357站点的强烈影响有关。此外，我们还在U1357遗址发现了各种碎屑取食动物和底栖食腐动物（底栖有孔虫和环节动物蠕虫）的遗骸，表明该遗址具有较高的出口生产力。这项研究表明，有机微化石遗骸具有重建过去环境条件的潜力，例如海冰覆盖和（出口）生产力。
Abstract. Integrated Ocean Drilling Program (IODP) Expedition 318 recovered a ∼ 170 m long Holocene organic-rich sedimentary sequence at Site U1357. Located within the narrow but deep Adélie Basin close to the Antarctic margin, the site accumulated sediments at exceptionally high sedimentation rates, which resulted in extraordinary preservation of the organic sedimentary component. Here, we present an overview of 74 different mainly marine microfossil taxa and/or types found within the organic component of the sediment, which include the remains of unicellular and higher organisms from three eukaryotic kingdoms (Chromista, Plantae, and Animalia). These remains include phytoplanktonic (phototrophic dinoflagellates and prasinophytes) and very diverse zooplanktonic (heterotrophic dinoflagellates, tintinnids, copepods) organisms. We illustrate each marine microfossil taxon or type identified by providing morphological details and photographic images, which will help with their identification in future studies. We also review their ecological preferences to aid future (palaeo)ecological and (palaeo)environmental studies. The planktonic assemblage shows a high degree of endemism related to the strong influence of the sea-ice system over Site U1357. In addition, we found the remains of various species of detritus feeders and bottom-dwelling scavengers (benthic foraminifers and annelid worms) indicative of high export productivity at Site U1357. This study shows the potential of organic microfossil remains for reconstructing past environmental conditions, such as sea-ice cover and (export) productivity.
首次观察到东南极洲活海冰硅藻聚集到丁丁尼德洛里科
影响因子：
2.1
作者：
Armbrecht, Linda H.;Eriksen, Ruth;Leventer, Amy;Armand, Leanne K.
通讯作者：
Armand, Leanne K.
影响因子：
18.3
作者：
P. Stocchi;C. Escutia;A. Houben;B. Vermeersen;P. Bijl;H. Brinkhuis;R. DeConto;S. Galeotti;S. Passchier;D. Pollard;A. Klaus;Annick Fehr;T. Williams;J. Bendle;S. Bohaty;S. Carr;R. Dunbar;J. Flores;J. Gonzàlez;T. Hayden;M. Iwai;F. Jiménez-Espejo;K. Katsuki;G. Kong;R. McKay;M. Nakai;M. Olney;S. Pekar;J. Pross;C. Riesselman;U. Röhl;T. Sakai;P. Shrivastava;C. Stickley;S. Sugisaki;L. Tauxe;S. Tuo;T. Flierdt;K. Welsh;M. Yamane
通讯作者：
P. Stocchi;C. Escutia;A. Houben;B. Vermeersen;P. Bijl;H. Brinkhuis;R. DeConto;S. Galeotti;S. Passchier;D. Pollard;A. Klaus;Annick Fehr;T. Williams;J. Bendle;S. Bohaty;S. Carr;R. Dunbar;J. Flores;J. Gonzàlez;T. Hayden;M. Iwai;F. Jiménez-Espejo;K. Katsuki;G. Kong;R. McKay;M. Nakai;M. Olney;S. Pekar;J. Pross;C. Riesselman;U. Röhl;T. Sakai;P. Shrivastava;C. Stickley;S. Sugisaki;L. Tauxe;S. Tuo;T. Flierdt;K. Welsh;M. Yamane
北极晚古新世 - 早始新世古环境，特别强调古新世 - 始新世热最大值（罗蒙诺索夫海岭，综合海洋钻探计划远征 302）
影响因子：
--
作者：
Sluijs A;Röhl U;Schouten S;Brumsack H-J;Sangiorgi F;Sinninghe Damsté J;Brinkhuis H
通讯作者：
Brinkhuis H