| 闽东北地壳结构分析 |
| |
| 引用本文： | 余根锌.闽东北地壳结构分析[J].福建地质,2002,21(4):206-210. |
| |
| 作者姓名： | 余根锌 |
| |
| 作者单位： | 福建省地质测绘院,福州,350011 |
| |
| 摘 要： | 根据武夷山吴顿-霞浦重力测量剖面反演结果。结合布格重力异常特征分析，闽东北地壳大体分为3层，其中上地壳厚度7km-13km，主要为花岗岩，沉积岩，变质岩类，中地壳厚度9km-11.4km，属中性岩类，下地壳厚度8.4km-13.2km，属基性岩类，总体表现为“二隆夹一坳”的特点，莫霍面深度为31.4km-27.6km。
|
| 关 键 词： | 重力测量剖面 反演 断裂 地壳结构 福建 花岗岩 |
| 修稿时间： | 2002年5月13日 |
An Analysis on Crustal Structures of the Northeast Fujian |
| |
| Yu Genxin.An Analysis on Crustal Structures of the Northeast Fujian[J].Geology of Fujian,2002,21(4):206-210. |
| |
| Authors: | Yu Genxin |
| |
| Abstract: | According to the results of gravity profile inversion from Wuyishan Wutun to Xiapu in Fujian, and combining with the analysis on Bouguer gravity anomaly characters, the northeast Fujian crustal structures are divided into three layers The upper crustal layer is 7 to 13km thick, it is composed of granites, sedimentary rocks and atmorphic rocks The middle crustal layer is 9 to 11 4km thick, it is composed of intermediate rocks The lower crustal layer is 8 4 to 13 2km thick, it is made up of basic rocks The crustal structures of the northeast Fujian are generally charactericts of one depression sandwiched between two upheavals Moho depth is 31 4 to 27 6 km |
| |
| Keywords: | gravity survey profile inversion fault crustal structure the northeast Fujian |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
