| 鲁中碳酸岩中磷灰石同位素地球化学研究 |
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| 引用本文： | 储同庆,沈渭洲.鲁中碳酸岩中磷灰石同位素地球化学研究[J].矿物学报,1997(1). |
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| 作者姓名： | 储同庆 沈渭洲 |
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| 作者单位： | 南京大学地球科学系!南京，210008，南京大学地球科学系!南京，210008 |
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| 摘 要： | 鲁中地区分布着100多个碳酸岩体，微量元素含量及稀土配分等均与世界典型碳酸岩相近。而碳酸岩的碳氧及斑晶磷灰石的锶、钛同位素组成与典型地幔物质有差异，与富集地幔颇为近似，从而证实在山东地区陆壳下存在富集地幔源区。
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| 关 键 词： | 碳酸岩 斑晶磷灰石 锶钕同位素 碳氧同位素 富集地幔 鲁中地区 |
ISOTOPIC GEOCHEMISTRY OF APATITE FROM CARBONATITE IN CENTRAL SHANDONG |
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| Chu Tongqing, Shen Weizhou.ISOTOPIC GEOCHEMISTRY OF APATITE FROM CARBONATITE IN CENTRAL SHANDONG[J].Acta Mineralogica Sinica,1997(1). |
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| Authors: | Chu Tongqing Shen Weizhou |
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| Abstract: | There are over one hundred carbonatite bodies of Yenshanian age in the centTal part of Shandong Province. The contents of trace elements and REE distribution patterl1s of the rocks are similar to those of typical carbonatites in other parts of the world. Some differences are found in O and C isotopic composition between phenocryst apatite and typical mantle materials, but the apatite is similar to that from the enriched mantle. Therefore, the authors suggest that there exists an enriched mantle source region beneath the continental crust of Shandong Province. |
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| Keywords: | carbonatite phenocryst apatite Sr-Nd isotope oxygen and carbon isotope enriched mantle central Shandong |
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