Researches of a Top Beds by Gravity

The substantiations of application precision gravimetric surveys for detection and mapping of small and very small objects in feature of urban building are stated. The examples of realization of similar researches for the decision of very interesting tasks are given. The estimations of really achievable accuracy of measurements and interfering factors are given. The ways of increase of accuracy and stability by handicaps some gravimeters are described. The described features do gravity prospecting not only very cheap, but also most productive method. The recommendations for application and perfection of described techniques for the decision of engineering-geological and archeological tasks are given