THE ORE AND MAGMATIC MODEL OF THE KULTUMINSKY ORE FIELD ON THE BASIS OF GEOLOGIC-GEOPHYSICAL RESEARCHES (SOUTH-EASTERN ZABAIKALIE)
On the example of the Kultuminsky ore field, the research technique with a choice of algorithm of processing and interpretation of geophysical data is offered. By means of specialized programs two-dimensional inversion, on the basis of the solution of a straight line and the return problem of gravity and a magnetic exploration, on a method of the smallest squares with use of various filters is calculated. For the solution of the return task (inversion) various options the deconvolution of methods and a method of Newton with the focusing regularization of parameters are used. On the basis of two-dimensional inversion of geophysical data interpretation of gravity and magnetic fields on the line passing through the central part of the Kultuminsky gold-iron-copper field is carried out. By results of interpretation cuts of effective excess density and a magnetic susceptibility are constructed. Data of geological researches and geophysical interpretation therefore the most probable model of development of a mineralization of the Kultuminsky ore field is constructed are compared. The characteristic of mineralization development within an ore field based on the formation concept and research of copper and porphyry fields developed by R.H. Sillitoe (2010) is given. It is assumed that all known fields and ore appearance genetically belong to uniform large ore and magmatic system. Metasomatic study of breeds is considered; the role the eruptive breccia is established. Geological criteria for searches of fields of this kind are allocated. Conclusions are drawn and the main features of the Kultuminsky ore field as a potential object of geological and industrial type of mineralization, copper and porphyry with gold, are named. Perspective sites are allocated and the further directions of researches on the Kultuminsky ore field are considered.