【摘要】 利用鄂尔多斯地块及其周边地区高精度的数字地形和实测重力资料,采用Airy重力均衡模式,计算出了鄂尔多斯及周边地区(32°~43°N,102°~117°E)的重力均衡异常值。结果表明,鄂尔多斯地区整体基本达到均衡状态,部分地区处于亚均衡状态,均衡异常具有明显的分块特征:东部的平原大部分均衡异常值在20mGal以下,表明基本处于均衡状态;在西部和北部山区多为正异常,大部分地区还存在失衡现象。更多还原

【Abstract】 By using high accurate data of topography and measured gravity data,the isostatic gravity anomaly of Ordos block and its adjacent areas(32°～43°N,102°～117°E) were calculated according to Airy local isostatic model.The results show that most areas are in the isostatic status except part of Ordos block.The isostatic value is around 20 mGal in eastern part of Ordos block,indicating that basically isostatic status has been reached while some places in west and north of Ordos block is still in unisostitc status.更多还原