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YU Haitao, MENG Qinghai, GUO Qian. REE Characteristics and Ore Source of Shicheng Rock-mass in Songshan, Henan[J]. Northwestern Geology, 2016, 49(1): 34-38.
Citation: YU Haitao, MENG Qinghai, GUO Qian. REE Characteristics and Ore Source of Shicheng Rock-mass in Songshan, Henan[J]. Northwestern Geology, 2016, 49(1): 34-38.

REE Characteristics and Ore Source of Shicheng Rock-mass in Songshan, Henan

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  • Received Date: January 22, 2015
  • Revised Date: June 11, 2015
  • Published Date: March 04, 2016
  • In ancient Proterozoic, the Shicheng alkaline rock-mass was formed as a result of magmatic intrusion. As shown by statistical analysis of REE in these rock-masses, the total content of ωREE is nearly 6 times as the crustal clarke value, the ratio of ωLREE/ωHREE is nearly 1.5 times as that of the crust, and the fractionation of LREE and HREE is slight, whereas Eu is strongly depleted, and Ce is not basically depleted. The REE distribution patterns of intrusive bodies' wall rock are basically similar to the ones of rare matal mineralized body (alkali-feldspar granites), all dipping steeply towards the right. Never less ∑REE and HREE are richer in alkali-feldspar granites than in magmatite. The results show that the magma and metallogenetic materials of these rock-masses might be derived mainly from the same magma chamber in the upper mantle, both of them were homologous, and they assimilated and mixed the crustal materials with different degree during the intrusion of magma.
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