New zircon U-Pb and Hf isotopic constraints on the crustal evolution of the Skjoldungen region, South-East Greenland

Q2 Earth and Planetary Sciences

Geological Survey of Denmark and Greenland Bulletin Pub Date : 2016-01-01 DOI:10.34194/geusb.v35.4927

T. Kokfelt, T. Næraa, K. Thrane, L. Bagas

引用次数: 1

Abstract

Fig. 1. Geological map of the Skjoldungen region, South-East Greenland, showing locations of samples (blue circles) selected for zircon U-Pb geochronology and zircon Hf isotope analysis. We report new zircon U-Pb and Hf isotopic data from the Skjoldungen region between c. 62°30 ́ and 63°40 ́N in SouthEast Greenland. The work was carried out under the SouthEast Greenland Mineral Endowment Task (SEGMENT); a joint project between the Geological Survey of Denmark and Greenland (GEUS) and the Ministry of Mineral Resources (MMR) in Greenland to assess the mineral endowment and update the geological knowledge of the region using modern petrological, geochemical and geochronological tools. This paper presents new zircon U-Pb and Hf isotopic data from a range of different Archaean rocks in the Skjoldungen region, which greatly improve the understanding of the history of crustal growth.

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格陵兰东南部Skjoldungen地区地壳演化的新锆石U-Pb和Hf同位素约束

图1所示。格陵兰东南部Skjoldungen地区的地质图，显示了选择用于锆石U-Pb地质年代学和锆石Hf同位素分析的样品位置(蓝色圆圈)。本文报道了格陵兰岛东南部c. 62°30°~ 63°40°N之间Skjoldungen地区锆石U-Pb和Hf同位素的新数据。这项工作是在格陵兰东南矿产资源任务(部分)下进行的;丹麦和格陵兰地质调查局(地质调查局)与格陵兰矿产资源部之间的一个联合项目，目的是利用现代岩石学、地球化学和地质年代学工具评估该地区的矿物资源和更新该地区的地质知识。本文介绍了Skjoldungen地区不同太古宙岩石的锆石U-Pb和Hf同位素新数据，极大地提高了对地壳生长历史的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Geological Survey of Denmark and Greenland Bulletin GEOLOGY-

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： GEUS Bulletin publishes geoscience research papers, monographs and map descriptions with a focus on Denmark, Greenland and the wider North Atlantic and Arctic region. We welcome submissions that fit this remit. Specifically, we publish: 1.Short articles intended as rapid communications that are of immediate interest to the international geoscience community (these include new research, datasets, methods or reviews) 2.Regular-length articles that document new research or a review of a topic of interest 3.Monographs (single volume works, by arrangement with the editorial office) 4.Maps and descriptive texts (produced by GEUS for Greenland and Denmark, by arrangement with the editorial office) GEUS Bulletin serves a broad geoscientific readership from research, industry, government agencies, NGOs and special interest groups.