南方混合粘土矿中稀土配分研究

STUDY ON RARE EARTH DISTRIBUTION PATTERNS OF COMPLEX CLAY ORE IN SOUTHERN CHINA

研究了形成风化型混合粘土矿的原岩、风化壳矿石和提取产品的稀土配分，它们不具有继承性。从１１３个矿样所提取的产品稀土配分相关分析，得出钆断效应和各半正相关性，且主要以轻稀土配分型为主占７７．９％，富钇和富铈配分型很少，分别仅占４．４％和１．８％。重稀土为主且赋存于易风化矿物的原岩易形成富钇配分型稀土矿。

The rare earth distribution patterns in the original rock of formative weathering type complex clay ore, weathering ore and extracted product were studied and their distribution patterns don't have inheritance. A gadolinium broken effect and a half plus relation were obtained through relation analysis of 113 rare earth product distribution patterns, and the light rare earth type distribution patterns are 77. 9%, yttrium rich and cerium rich type distribution patterns are very low, they are 4. 4% and 1. 8% respectively. The original rock of easily weathering minerals that mainly contains heavy rare earth elements easily forms rare earth ore of yttrium rich type distribution pattern.