The first representatives of ferrocenes containing mesoionic heterocyclic substituents were obtained by the ferrocenyl alkylation of 4-mercapto derivatives of sydnones and sydnone imines. Several synthesized derivatives showed high antidote activity against metsulfuron-methyl (Zinger WP) herbicide.
The problem of prospecting low magnetic kimberlite pipes, as well as diatremes, locating in unfa¬ vourable prospecting situations for heavy-concentrate mineralogical method, accelerates application of non-traditional methods of exploration in the practice of diamond prospecting works. These me¬ thods are based on specific properties of kimberlites allowing to reveal them on the background of country rocks. New prospecting methods are also used when classifying magnetic anomalies accord¬ ing to the degree of perspectivity, as well as for localization of pipes in the contours of the revealed heavy concentrate-mineralogical haloes. While doing this, as a rule, the character of correlation rela¬ tionship between the contrast of occurrence of various indicator properties in pipes is not taken into consideration. These noted circumstances create real possibilities of missing the targets. In order to increase geological effectiveness and to cut expenses for geological works there has been made an at¬ tempt to determine correlation relationship between various indicator properties of kimberlites on three main diamondiferous fields of Yakutian Province (Miminskoye, Alakhit-Markhinskoye, Daldynskoye). On the materials of I.P.Ilupin, D.I.Savrasov and A.T. Bondarenko there has been compiled a da¬ ta base for about 100 pipes of the noted territory with inclusion in it for each pipe of the following features: size, chemical composition, content of microelements, content of pyropes, picroilmenite and other indicator minerals, content of country rock xenoliths, thickness of kelyphytic edging on pyrope, petrophysical properties, diamondiferous and some other properties. Correlation relationships between the properties were investigated with the help of the method of factor analysis, couple and rank corre¬ lation.
The theory of geological prospecting systems reliability is based on the notion of Failure of the system itself or its element. The failure should be understood as any possible or real event resulting in missing at least one target on the area of investigations, with defined minimum meanings of commercial or in¬ dicator parameters. The potential ability not to miss such targets is supposed to mean the Quality of geological prospecting system. And the ability to preserve quality for a certain volume of works is supposed to mean Reliability. There are five types of failures in every elementary pair "targetmethod" A. The failures of material-indicated type (bound up with in¬ stability of indicated properties of prospecting targets); B. The failures of the landscape-geological type (bound up with the screening influence of the environment surroundings com¬ ponents) C. The failures of technical-metrological type (bound up with insufficient density and accuracy of observations D. The failures of geological-interpretative type (bound up with mistakes during geological interpretation and forecasting); E. The failures of evaluation type (bound up with mistakes during the revealing of the prospecting targets). The next stage of the reliability investigations of realised or projected forecasting-prospecting technologies is classification of revealed failures according to their frequency and the influ¬ ence at effective prospecting. Then, for most essential of them there are specific quantitative or qualitative indexes. On the ba¬ sis of the last one there was worked out a conventional special legend for mapping according to changing factors, which de¬ termine the prospecting reliability. These maps serve as a basis for evaluation of prospecting reliability and for a new highquality technological scheme of prospecting. The main appli¬ cation results of the theory of geological prospecting system re¬ liability in the practice of diamond prospecting investigations in Yakutian diamondiferous province are the following: For the traditional regions of operating mining plants, in the way of the failures of material-indicated type investigations, there were precised minimum industrial and minimum com¬ mercial parameters of targets (kimberlite pipes) and were de¬ termined typomorphical indicated features of pipes for each kimberlite field. Methodical techniques in increasing prospect¬ ing complex reliability were recommended. By means of inves¬ tigations of the failures of landscape-geological type and the failures of technical-metrological type special maps of zoning on factors defining methods reliability were made. The methods of reserving failures of this type were also worked out.
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