Title: Nd isotopic study of Precambrian basement of South Korea: Evidence for Early Archean crust?
Abstract: Research Article| March 01, 1995 Nd isotopic study of Precambrian basement of South Korea: Evidence for Early Archean crust? Ching-Ying Lan; Ching-Ying Lan 1Institute of Earth Sciences, Academia Sinica, Nangkang, Taipei, Taiwan, China Search for other works by this author on: GSW Google Scholar Typhoon Lee; Typhoon Lee 1Institute of Earth Sciences, Academia Sinica, Nangkang, Taipei, Taiwan, China Search for other works by this author on: GSW Google Scholar Xin-Hua Zhou; Xin-Hua Zhou 2Institute of Geology, Academia Sinica, Beijing, China Search for other works by this author on: GSW Google Scholar Sung-Tack Kwon Sung-Tack Kwon 3Department of Geology, Yonsei University, Seoul, Republic of Korea Search for other works by this author on: GSW Google Scholar Author and Article Information Ching-Ying Lan 1Institute of Earth Sciences, Academia Sinica, Nangkang, Taipei, Taiwan, China Typhoon Lee 1Institute of Earth Sciences, Academia Sinica, Nangkang, Taipei, Taiwan, China Xin-Hua Zhou 2Institute of Geology, Academia Sinica, Beijing, China Sung-Tack Kwon 3Department of Geology, Yonsei University, Seoul, Republic of Korea Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1995) 23 (3): 249–252. https://doi.org/10.1130/0091-7613(1995)023<0249:NISOPB>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Ching-Ying Lan, Typhoon Lee, Xin-Hua Zhou, Sung-Tack Kwon; Nd isotopic study of Precambrian basement of South Korea: Evidence for Early Archean crust?. Geology 1995;; 23 (3): 249–252. doi: https://doi.org/10.1130/0091-7613(1995)023<0249:NISOPB>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract We carried out a Sm-Nd isotopic reconnaissance study of South Korea. Eight river sediments gave crustal residence ages (TDM) between 1.7 and 2.7 Ga, implying that, on average, the crust of South Korea was formed in Early to Middle Proterozoic time. Twenty-six Precambrian basement rocks yielded TDM between 1.4 and 3.8 Ga. More than half of them exceed 2.5 Ga, indicating that South Korea has a long history of crustal evolution. Four of the samples have TDM from 3.2 to 3.8 Ga suggesting the possibility that there may be ancient continental crust in Korea having ages comparable to those of the oldest cratons in the world. However, these samples also have preferentially higher Sm/Nd, so their old ages could be artifacts, thus requiring confirmation. The large variation in TDM of South Korea is reminiscent of that for the South China block. However, the existence of Early Archean ages better matches that of the North China block, because the basement of south China was thought to be mostly Proterozoic in age. The recent discovery of rare Archean basement rocks in the South China block may favor models that attempt to correlate South Korea with south China. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Publication Year: 1995
Publication Date: 1995-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 79
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