ИСТИНА |
Войти в систему Регистрация |
|
ИСТИНА ИНХС РАН |
||
Carpathian electrical conductivity anomaly (CECA) was discovered in the 1960s and intensively studied by separate institutions and international teams. More than thousand induction vectors with periods 10-60 min were collected that provide possibility to map 1200 km long anomaly with high reliability. Other MVP data (profile graphs and frequency characteristics of anomalous field) yield estimation of the anomalous body maximal possible depth/width and total longitudinal conductance G. The next step of an anomaly study is the determination of the upper edge depth of the anomalous conductor. Knowledge of the depth is important for more grounded conclusion on the anomaly nature (fluids or electronically conducting minerals) and for estimation of its exploitation perspective. It is only sounding methods (first of all MTS) are appropriate for the depth determination, MVP data practically cannot give true depth estimation, even (without other data) distinguish surface and deep anomalies. MTS was done only in three localities of CECA (Slovakia, Ukraine, and Romania) 30-45 years ago, so misbalance MVP and MTS is obvious. Now MT community can elaborate for Carpathians EM studies a strategic plan, which should be based on the definition of research objectives, methods used features (MVP and MTS) and the rules for their interaction. The Abstract presents the short review of main EM results in Carpathians, more details will be given in presentation.