| 中国大陆地壳上地幔不均匀性与矿产资源预测 |
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| 引用本文： | 彭聪,李小鹏,薛光琦,董英君.中国大陆地壳上地幔不均匀性与矿产资源预测[J].物探与化探,1996,20(1):49-57. |
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| 作者姓名： | 彭聪 李小鹏 薛光琦 董英君 |
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| 作者单位： | 地矿部矿床地质研究所 |
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| 摘 要： | 在充分收集、整理、综合研究中国大陆11条地学断面(简称GGT)、数十条其它地球物理剖面(地震剖面、大地热流、大地电磁测深等剖面)和覆盖中国大陆及邻区的剪切波三维速度结构资料的基础上,阐述了中国大陆及邻区地壳结构、岩石圈结构和软流圈结构,并对中国大陆矿产资源预测作了简单的讨论。中国岩石圈结构是在三种不同性质的软流圈基础上发展起来的,有明显的继承性。中国岩石圈结构在某种程度上与大地构造单元相吻合,说明地壳构造受到岩石圈的影响和制约。尤其在地震波垂向低速带上(地壳上地幔都表现为低速性质)是内生多金属矿带的良好产出环境。
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| 关 键 词： | 地壳 岩石圈 软流圈 垂向低速带 矿产预测 |
| 收稿时间： | 1995-03-31 |
THE HETEROGENEITY OF THE UPPER MANTLE OF THE CHINESE CONTINENT AND THE PROGNOSIS OF ORE RESOURCES |
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| Peng Cong, Li Xiaopeng, Xue Guangqi, Dong Yingjun.THE HETEROGENEITY OF THE UPPER MANTLE OF THE CHINESE CONTINENT AND THE PROGNOSIS OF ORE RESOURCES[J].Geophysical and Geochemical Exploration,1996,20(1):49-57. |
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| Authors: | Peng Cong Li Xiaopeng Xue Guangqi Dong Yingjun |
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| Institution: | Institute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijing 100037 |
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| Abstract: | Based on full collection, arrangement and integrated study of information from 11 globe geoscience transects (called GGT for short) and tens of other geophysical profiles (seismic profiles, geothermal flux profiles and magnetotelluric sounding profiles) in the Chinese continent as well as shear wave three-dimensional velocity structural data that cover the Chinese continent and neighboring regions, the present paper has described crustal structure, lithospheric structure and rheospheric structure in the Chinese continent and neighboring regiona, and made a brief discussion on the prognosis of ore resources in the Chinese continent. The lithospheric structure of China was developed on the basis of rheosphere of three different sorts of natures and hence shows obvious inheritance. The lithospheric structure is to certain extent in accord with the geotectonic unit, suggesting that the crustal structure is influenced and restricted by the lithosphere. The crust and the upper mantle both exhibit low-velocity nature, and the vertical low-vvelocity zones of seismic waves seem to be the good environment for the formation of endogenic polymetallic ore belts. |
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| Keywords: | the earth crust lithosphere vertical low-velocity zone prognosis of ore resources |
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