Sm-Nd dating and REE Composition of scheelite for the Honghuaerji scheelite deposit, Inner Mongolia, Northeast China
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- 作者：Zhijun Guoa ; b ; Jinwen Lia ; lijinwen958@sohu.com" class="auth_mail" title="E-mail the corresponding author ; Xinying Xuc ; Zeyou Songd ; Xuzhou Donge ; Jing Tiana ; e ; Yuncheng Yanga ; Hongquan Shea ; Anping Xianga ; Yongjian Kanga
- 关键词：Scheelite ; Sm-Nd dating ; Tungsten mineralization ; Rare earth elements ; Tectonic setting ; Great Xing'an Range
- 刊名：Lithos
- 出版年：2016
- 出版时间：15 September 2016
- 年：2016
- 卷：261
- 期：Complete
- 页码：307-321
- 全文大小：2782 K
文摘
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Scheelite Sm-Nd dating results indicate that the Honghuaerji deposit formed at 178.4 ± 2.9 Ma.
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The fluid responsible for W mineralization is of magmatic in origin, and mantle-derived signature.
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Chondrite-normalized REE distribution patterns of all scheelites are middle REE-enriched, with a strong negative Eu-anomaly.
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The REE3 + substituted into the Ca site of scheelite coupled with Na and Nb, while the scheelite contain Eu as Eu2 +.
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Honghuaerji deposit was formed in post-collisional tectonic setting caused by closure of the Mongol-Okhotsk Ocean.