Ion-adsorption REEs in regolith of the Liberty Hill pluton, South Carolina, USA: An effect of hydrothermal alteration

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• 作者：Carleton R. Bernp>ap>p> ; p>p>cbern@usgs.govp> ; Tiffany Yesavagep>ap> ; Nora K. Foleyp>bp>
• 关键词：Liberty Hill pluton ; Rare earth elements ; Ion adsorption clay deposits ; Hydrothermal alteration ; Weathering
• 刊名：Journal of Geochemical Exploration
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：172
• 期：Complete
• 页码：29-40
• 全文大小：2481 K
• 卷排序：172

文摘

REE chemistry and mineralogy were examined on the Hercynian Liberty Hill pluton. The pluton is in the highly weathered and slowly eroding South Carolina Piedmont. In one profile, ion-adsorbed REE + Y ranged up to 581 mg/kg and were 77% of bulk REE + Y. In other profiles, ion-adsorbed REE + Y ranged 8–194 mg/kg and were 3–39% of bulk REE + Y. Low P content and hydrothermal alteration caused the high ion-adsorbed REE content.