gravity anomaly

Computing the vertical second derivative and upward continuation of gravity anomaly by spline function method

用样条函数法求重力异常二阶垂向导数和向上延拓计算

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Formulas of inversion and cosine transform spectrum of gravity anomaly cylinderfinite stretched staircase were deduced.

提出利用余弦变换,研究规则体重力异常谱特征及反演方法.

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-Compress the objective layer into an equivalent density interface, whose pseudo interface density differences are then derived from the pure gravity anomaly of the objective layer.

然后，将目的层压缩成为一个等效密度界面，再用消除非目的层影响的剩余重力异常及演该界面的视界面密度差值；

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This paper aims to preliminarily discuss the gravity anomaly and the crustal structures from Okinawa Trongh to Mariana Trench ( Fig. 1).

本文旨在对冲绳海槽至马里亚纳海沟的重力异常和地壳结构进行初步的研究。

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But around the thermal spring, the normal gravity anomaly formed by the upwelling of the high-density molten substance along the fracture;

而在温泉附近，由于地壳深部高密度的熔融物质沿断裂上涌而形成重力正异常；

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Processing and interpretation of gravity anomaly data in Dagang-west Bohai area

大港&渤海西部地区重力异常数据的处理和解释

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The resemblant character of the vertical crustal deformation and gravity anomaly before three macroseism in Tangshan, Datong and Zhangbei are studied and summarized. Both the vertical crustal deformation and gravity show positive anomaly before earthquake.

分析总结了唐山、大同和张北3次强震前地壳垂直形变异常和重力异常的相似特征，即震前均表现为地壳垂直形变正异常和重力正异常。

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Using Gravity Anomaly Matching Techniques to Implement Strategic Submarine Navigation

利用重力异常匹配技术实现战略潜艇的导航

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Gravity anomaly and Wudang Mountain nappe

重力异常与武当山推覆体

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Ore zones occur in the edge of local positive gravity anomaly, in the strike interrupted area or steep gradient area of regional aeromagnetic anomaly.

而且矿区、矿化集中区还位于反映深部构造变异的局部重力异常区边缘、区域航磁走向中断区或梯度变化带附近。

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In practical application, to use density compensation method impetrated forwardly residual gravity anomaly, then to use the quasi-neural network BP algorithm invert two 2D density interfaces simultaneously, to fit up depth anomaly of two interfaces, and predicting coalfield on this basis.

在实际应用中，先用密度补偿法正演求取剩余生力异常，然后利用拟神经网络BP算法同时反演两个二维密度界面，拟合求得两个界面的深度异常，在此基础上预测煤田。

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The shortcomings and correction methods of Bouguer gravity anomaly terrain correction in microgravity exploration

布格重力异常地形校正方法在微重力勘探中的缺点及其纠正方法

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So it is necessary to calculate gravity anomaly real-time on the missile.

主动段扰动引力是引起弹道导弹制导方法误差的主要因素.

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The theory and method of inversing the Multi-Interfaces of density by gravity anomaly

利用重力异常反演多层密度分界面的理论和方法

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There is a positive anomaly area with above 120 nms-2 gravity change before the earthquakes, and the bigger the earthquake magnitude the more the gravity anomaly.

震前总有一个120nms－2以上的正异常区出现，震级越大异常区的幅值也越大；

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The generalized definition of gravity anomaly is given, and vari-ous gravity corrections, corresponding gravity anomalies and their geo-physical meanings are also expounded in the paper.

本文给出了重力异常的广义定义，并进一步阐述了各种重力校正和相应重力异常的定义及其地球物理意义。

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Comparing the Hotine formula using disturbing gravity with the Stokes formula using gravity anomaly, the former is simpler to compute, which is same as the back in the two approximate planes.

出扰动重力作为输入数据的Hotine积分与由重力异常作为输入数据的Stokes积分比较，前者的核函数更为简单，因此更便于计算。在平面近似时两者完全相同。

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Discussion on the Regional Geological Tectonic Framework of Guizhou Based on 1:500 000 Gravity Anomaly

从1∶50万重力异常探讨贵州省区域地质构造格架

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Interface inversion of gravity anomaly observed on rough terrain& Sine series iteration method

起伏地形上观测重力异常的界面反演&正弦级数迭代法

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Approximations of local covariance function s of gravity anomaly

局部重力异常协方差函数逼近

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The massif with positive gravity anomaly has a high density and that with negative gravity anomaly has a low density.

布格重力异常图反映了地块的密度情况，正异常带为大密度地块，负异常带为小密度地块。

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Rapid direct method of gravity anomaly of arbitrary three-dimensional body by horizontal section

利用水平截面法对任意形状三度体的重力异常的快速正演

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Conventional methods fail to bring good processing result of gravity anomaly which has undergone terrain correction.

用常规方法对地改后的布格重力异常进行处理效果不佳。

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Determination of the maximum radius for terrain correction in regional gravity measurement is of significance for improving accuracy of the Bouguer anomaly.

地形改正最大半径的确定，对提高重力布格异常的精度具有重要意义。

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Thus three N-S-trending gravity high anomaly belts, structural turning zones and the N-W-and E-W-trending fracture structures, which are not easy to observe on the ground surface, are clearly displayed on the processed local gravity anomaly contour map.

在分离出的局部重力异常等值线图上，显示出了三条南北向的重力高异常带、构造转折带及地表不易观察得到的北西向、东西向断裂构造。

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Given a initial model, one can calculate the gravity anomaly caused by a undulate subsurface interface.

在给定密度界面初始模型之后，可以计算出地下某一起伏界面引起的重力异常。

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In this article, the authors propose the terrain correction method to remove the middle layer correction to satisfy the fine microgravity exploration explanation by analysing gravity complementation of terrain and middle layer corrections to surveying points in computing Bouguer gravity anomaly.

本文通过分析在计算布格重力异常时地改和中间层改正对测点的重力补偿，提出了取消中间层改正以适应微重力勘探精细解释需要的地形校正方法。

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Preliminary study of the gravity anomaly and crustal structures from Okinawa trough to Mariana Trench

冲绳海槽至马里亚纳海沟重力异常和地壳结构的初步研究

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There are two high value trop of gravity anomaly in the central rise belt-second order structure unit of the Northern depression are the oil and gas prospect district.

对其中的北部坳陷中的二级单元&中部隆起带，提出它的两个重力高值隆起圈闭区是有利的两个含油气远景区。

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The gravity anomaly can be well simulated only by placing a huge low-density body from the surface to the Moho at the boundary between the North and the South Dabie Mountains, at the root of the Dabie Mountains.

只有将位于大别山山根上，南北大别之间设置一个从地表直达莫霍界面的巨大低密度体，重力曲线才能得到很好的拟合。

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