Перевод названия: SOME GEODYNAMIC PARALLELS TECTONOPHYSICAL AND GRAVISTRUCTURAL MODEL ACCOMMODATION OF KIMBERLITES OF THE YAKUT DIAMOND-BEARING PROVINCE
Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: XXV КОНФЕРЕНЦИЯ «АЛЮМИНИЙ СИБИРИ»; XV КОНФЕРЕНЦИЯ «ЗОЛОТО СИБИРИ»; XIII КОНФЕРЕНЦИЯ «МЕТАЛЛУРГИЯ ЦВЕТНЫХ, РЕДКИХ И БЛАГОРОДНЫХ МЕТАЛЛОВ »; Красноярск; Красноярск
Год издания: 2019
Аннотация: A comparison of the tectonophysical model of the shifts that control the placement of kimberlite pipes of the Yakutsk diamondiferous province with the gravity-structural model proposed by the author. The model is based on the analysis of the duplex structure of the gravitational field, which is manifested in the form of low-frequenПоказать полностьюcy anomalies of this field, forming a pair of conformal, relatively close together and comparable in intensity anomalies of the opposite sign - gravitational duplexes. The continuity of bipolar anomalies of gravitational duplexes is often violated by flexural excesses, which in the limit turn into left or right shifts of different amplitudes. The areas between the shears are combined into more or less extended deformation-shear zones of right- or left-shear compression or tension. Thus, the tectonophysical and gravity-structural model studies shear deformations and intershift interactions of rocks, but by different methods: the first is structural-geological, the second is geophysical. As a result of the study, the following was established: 1) the predominantly right-sided northeast compression, established as a regional control factor for the kimberlite magmatism of the Yakut diamondiferous province within the tectonophysical model, does not contradict the factor of intense right-shift compression, which also has a northeast extension; 2) the predominant localization of kimberlite pipes in the areas of inter-shear stretching (pull-apart structures) established within the framework of a tectonophysical model does not contradict the correlation of kimberlitic pipes with right-and-left-shear kinematics zones established in the framework of a graded structural model; 3) a stronger correlation of kimberlite pipes with zones of low-intensity inter-shear stretching, established in the framework of the gravity-structured model, does not contradict the aulacogen hypothesis, according to which the kimberlite fields do not affect the aulacogen themselves, but to the zones of their dynamic influence.
Журнал: ЦВЕТНЫЕ МЕТАЛЛЫ И МИНЕРАЛЫ - 2019
Номера страниц: 727-735
Издатель: Общество с ограниченной ответственностью "Научно-инновационный центр"