| 地球扁率在其历史上的变化 |
| |
| 引用本文： | 王君恒,郭雷,王健楠,王彦国.地球扁率在其历史上的变化[J].地球物理学进展,2010,25(1):143-150. |
| |
| 作者姓名： | 王君恒 郭雷 王健楠 王彦国 |
| |
| 作者单位： | 1. 中国地质大学(北京)地质过程与矿产资源国家重点实验室,北京,100083;中国地质大学(北京)地球物理与信息技术学院,北京,100083
2. 中国地质大学地下信息探测技术与仪器教育部重点实验室,北京,100083 |
| |
| 摘 要： | 地球的形状变化是地球演化研究的基本问题之一.为了确定地球形状的变化需要了解各个地质历史时期其扁率的变化.根据地球的扁率公式，得到扁率与地球的半径、质量和角速度关系.通过推测地球的半径、质量和角速度的变化量，计算出地球各个时期的扁率.地球的扁率自形成以来总体趋势在减小.地球是个固液混合的椭球体，在各个地质历史时期中地球扁率的真实值应该小于计算的扁率值.
|
| 关 键 词： | 地球扁率 半径 质量 角速度 |
| 收稿时间： | 2009-05-05 |
| 修稿时间： | 2009-09-20 |
The change of earth oblateness in its history |
| |
| WANG Jun-heng,GUO Lei,WANG Jian-nan,WANG Yan-guo.The change of earth oblateness in its history[J].Progress in Geophysics,2010,25(1):143-150. |
| |
| Authors: | WANG Jun-heng GUO Lei WANG Jian-nan WANG Yan-guo |
| |
| Abstract: | The change of the earth's shape is one of the basic problems in the study of earth evolution.The change of oblateness in individual geological periods is needed to determine the change of the earth's shape.The relationship among the oblateness,the radius,the quality and the angular velocity of the earth can be derived according to the oblateness formula of the earth.The oblateness in each time can be calculated according to the conjectured change of the radius,the quality and the angular velocity.The oblateness tends to decrease since the formation of the earth.The earth is a ellipsoid consisted of both solid and liquid,so the true value in each geological time should be less than the calcdated oblateness. |
| |
| Keywords: | the earth'oblateness radius quality angular velocity |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学进展》浏览原始摘要信息 |
| 点击此处可从《地球物理学进展》下载免费的PDF全文 |
|
