| 河南登封石牌河“变闪长岩体”的部分岩石学和地球化学以及U-Pb同位素年龄 |
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| PETROLOGY, GEOCHEMISTRY AND U-Pb ISOTOPIC DATING OF THE SHIPAIHE“METADIORITE MASS”IN DENGFENG COUNTY, HENAN PROVINCE, CHINA |
| The Shipaihe "metadiorite mass" occurring in Dengfeng County, Henan Province, is a complex igneous mass which has been comtaminated with old rocks at depths and has undergone alkaline metasomatism after emplacement. Its petrochemical composition varies from monzonite to diorite. The total content of REE (3 sample)ranges from 378.43 to 488.05, and no Eu anomaly is shown. Eu/Eu = 0.77-0.88.The chondrite-normalized REE distribution of the rocks shows a high fractionated pattern. LREE is predominant. The age of emplacement of this igneous mass is about 2520 + 17Ma, (zircon U-Pb) belonging to the Late Archaean. |
| WANG Ze-jiu,SHEN Qi-han,JIN Shou-wen.1987.PETROLOGY, GEOCHEMISTRY AND U-Pb ISOTOPIC DATING OF THE SHIPAIHE“METADIORITE MASS”IN DENGFENG COUNTY, HENAN PROVINCE, CHINA[J].Acta Geoscientica Sinica,9(2):215-225. |
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