【摘要】 利用重力资料反演密度界面对于研究盆地、区域构造和深部构造有着重要意义.但是密度基准面深度和界面密度差的不准确性降低了反演结果的可靠性.本文使用已知深度的控制点,在逐步迭代中计算出最合适的密度基准面深度和界面密度差,使反演结果和控制点拟合最好.理论模型和南海地区的莫霍反演结果表明本文方法可以计算出最合适的密度基准面深度和界面密度差,取得理想的反演结果.更多还原

【Abstract】 The inversion of density interface using gravity data has great values in basin research、regional tectonics and deep structure.However,the uncertainty of density datum plane and density contrast makes the inversion result unreliable.An inversion method of three-dimensional density interface with several known control points is presented in this paper.We calculate the datum plane and density contrast in each iteration to make the inversion result fit the control points best.The tests of synthetic model and south China sea gravity data prove that the method obtains suitable datum plane and density contrast and gets a good inversion result.更多还原