Establishment of exploration methods of ion-adsorption type REE ores and evaluation of resources

离子吸附型稀土矿勘查方法建立及资源评价

• 批准号: 23760796
• 负责人: SANEMATSU Kenzo
• 金额: $ 2.83万
• 依托单位: National Institute of Advanced Industrial Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760796/
• 关键词: 希土類; 資源; イオン吸着鉱; 花崗岩; 風化; 吸着; 熱水変質; ミャンマー; 鉱床; 資源探査

Heavy rare earth elements (HREE) are predominantly produced from ion-adsorption type REE (rare earth elements) deposits consisting of weathered granites. This study aims to elucidate the genesis of ion-adsorption type deposits, to develop an exploration method and to estimate a resource potential of REE.Occurrences and weathering susceptibility of REE-bearing minerals have important roles in the ore formation. REE fluorocarbonates, allanite and titanite are preferable REE-source minerals for the ion-adsorption ores. Since Ce depletion of weathered granite is positively correlated with percentage or concentration of ion-exchangeable REE, the Ce anomaly is a good indicator in exploration of the REE ores.Thickness of weathering crusts is mostly less than 10m in the surveyed areas. The mineral resources are estimated to small (<10,000 tonnes) to middle (50,000 - 500,000 tonnes) based on the definition of China.

重稀土元素主要产于风化花岗岩组成的离子吸附型稀土矿床中。本文旨在阐明离子吸附型稀土矿床的成因，发展稀土元素的找矿方法，评价稀土元素的资源潜力。稀土氟碳酸盐、褐帘石和钛铁矿是离子吸附矿的较好稀土源矿物。由于风化花岗岩的Ce亏损与离子可交换稀土元素的百分含量或浓度成正相关，因此Ce异常是稀土矿勘探的良好标志，测区风化壳厚度大多小于10 m。根据中国的定义，矿产资源估计为小型（<10 000吨）至中型（50 000 - 500 000吨）。

项目成果

Rare Earth Elements in Hydrothermally Altered granitic Rocks in the Ranong and Takua Pa Tin-Field, Southern Thailand

泰国南部拉廊和达瓜巴田田热液蚀变花岗岩中的稀土元素

• DOI: 10.1111/j.1751-3928.2012.00212.x
• 发表时间: 2013
• 期刊: Resource Geology
• 影响因子: 1.4
• 作者: 佐藤雄二;松永栄一;内田成明;Akira Imai
• 通讯作者: Akira Imai

Geochemical and geochronological characteristics of granites and Sn-W-REE mineralization in the Thanintharyi Region, southern Myanmar

缅甸南部Thanintharyi地区花岗岩和Sn-W-REE矿化的地球化学和年代学特征

• 发表时间: 2014
• 作者: 実松健造;間中崇行;Khin Zaw
• 通讯作者: Khin Zaw

Geochemistry, U-Pb zircon ages and tectonic settings of granite intrusions in southern Myanmar

缅甸南部花岗岩侵入体的地球化学、U-Pb锆石年龄和构造环境

• 发表时间: 2014
• 作者: Kenzo Sanematsu;Takayuki Manaka; and Khin Zaw
• 通讯作者: and Khin Zaw

Geochemical and mineralogical characteristics of ion-adsorption type REE mineralization : Implications for exploration

离子吸附型稀土矿化的地球化学和矿物学特征：对勘探的启示

• 发表时间: 2011
• 作者: 実松健造;昆慶明;今井亮;渡邊公一郎;渡辺寧
• 通讯作者: 渡辺寧

Geochemical characteristics determined by multiple extraction from ion-adsorption type REE ores in Dingnan County of Jiangxi Province, South Chine

江西定南县离子吸附型稀土矿石多次萃取地球化学特征

• 发表时间: 2013
• 期刊: Bulletin of Geological Survey of Japan
• 作者: 実松健造;昆慶明
• 通讯作者: 昆慶明