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The Kola Peninsula and Russian Lapland: A review of Late Weichselian glaciation
Quaternary Science Reviews ( IF 4 ) Pub Date : 2021-07-30 , DOI: 10.1016/j.quascirev.2021.107087
Benjamin M. Boyes 1 , Lorna D. Linch 1 , Danni M. Pearce 2 , Vasili V. Kolka 3 , David J. Nash 1, 4
Affiliation  

The Kola Peninsula and Russian Lapland (Murmansk Oblast, northwest Arctic Russia) represents a major sector of the Fennoscandian Ice Sheet (FIS) where empirical geomorphological, sedimentological, and chronological data are lacking and thus, where the pattern, style, and timing of glaciation is not well established. In this study, we present a critical review of published empirical data and interpretations of Late Weichselian (c. 40–10 ka) glaciation for the region. The review includes, for the first time, information published in Russian-language journal articles (n = 37), and is accompanied by a new Geographic Information System (GIS) numerical age database (spanning 472.3–6.2 ka) that collates known published numerical dates associated with the advance and retreat of the FIS in the study area.

Our review suggests that an ice mass existed over the Kola Peninsula and Russian Lapland during the Early-Middle Weichselian (c. 115–40 ka), and likely retreated during the Ålesund interstadial (c. 38–34 ka). During the Late Weichselian, it is likely that the FIS advanced eastwards across Russian Lapland and the Kola Peninsula, establishing the White Sea Ice Stream before the local-Last Glacial Maximum (c. 19–15 ka). Through an evaluation of the existing Last Glacial-Interglacial Transition (c. 20–10 ka) glaciation models for the region, we propose that the Kola Peninsula and Russian Lapland was deglaciated by the FIS, rather than the Ponoy Ice Cap or the Kara Sea Ice Sheet. In collating, discussing, and critically evaluating empirical data and interpretations, this paper provides a valuable resource to inform FIS dynamics at both a regional- and ice sheet-scale, and offers a framework through which numerical ice sheet models can be constrained. Precise FIS dynamics on the Kola Peninsula and Russian Lapland, including the position of the Younger Dryas ice marginal zone, remain unclear due to low-resolution geomorphological data. In concluding, we recommend that further work is needed in the form of a revised glacial reconstruction using high-resolution, peninsula-wide geomorphological data.



中文翻译:

科拉半岛和俄罗斯拉普兰:魏克塞尔晚期冰川作用回顾

科拉半岛和俄罗斯拉普兰(摩尔曼斯克州,俄罗斯北极西北部)代表了芬诺斯坎德冰盖 (FIS) 的一个主要部分,其中缺乏经验地貌、沉积学和年代学数据,因此缺乏冰川作用的模式、风格和时间没有很好地建立。在这项研究中,我们对已发表的经验数据和该地区晚魏克塞尔 ( c. 40–10 ka) 冰川作用的解释进行了批判性审查。该评论首次包括在俄语期刊文章中发表的信息(n = 37),并附有一个新的地理信息系统 (GIS) 数字年龄数据库(跨越 472.3-6.2 ka),该数据库整理了已知的已发表数字与 FIS 在研究区域的进退相关的日期。

我们的审查表明,冰团早-中Weichselian期间存在在科拉半岛和俄罗斯的拉普兰(115-40 KA),和奥勒松interstadial期间可能回落(38-34 KA)。晚Weichselian期间,它是可能的FIS先进向东横跨俄罗斯拉普兰和科拉半岛,当地末次盛冰期之前建立的白色海冰流(19-15 KA)。通过对现有的末次冰期-间冰期过渡(c.20-10 ka) 该地区的冰川模型,我们建议科拉半岛和俄罗斯拉普兰被 FIS 冰川消融,而不是 Ponoy 冰帽或喀拉海冰盖。在整理、讨论和批判性评估经验数据和解释时,本文提供了宝贵的资源,可以为区域和冰盖尺度的 FIS 动态提供信息,并提供一个框架,通过该框架可以约束数值冰盖模型。由于低分辨率的地貌数据,科拉半岛和俄罗斯拉普兰的精确 FIS 动态,包括年轻的仙女座冰边缘区的位置,仍不清楚。最后,我们建议需要进一步的工作,以使用高分辨率的半岛范围地貌数据修正冰川重建的形式。

更新日期:2021-07-30
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