Geophysical Journal | 2014 volume 36 3

On the Carpathian electrical conductivity anomaly depth study

© I.I. Rokityansky, V. I. Babak, A.V. Tereshyn

Carpathian electrical conductivity anomaly (CECA) was discovered in the 1960ies and intensively studied by both individual institutions and within the framework of international projects in many countries, but without any strategic plan, which should be based on the definition of research objective, abilities of used methods (MVP and MTS) and rules of their interaction. The paper presents the main results of CECA research: construction of induction vectors in more than 1000 points, putting the anomaly on map, estimation by MVP methods of maximum possible depth of anomalous currents center and total longitudinal conductance of anomalous body. True depth of anomaly upper edge was defined by MTS method only in three localities and the works were performed 25-40 years ago. Goal of future CECA researches should be study of its nature (fluids or electronically conducting minerals) and prospects of practical use (minerals, geothermal energy ...). The first step in this direction should be MTS fulfillment (and/or other soundings) over the axis of the CECA to select locations for drilling.

Key words: Carpathian electrical conductivity anomaly, magnetotelluric sounding, magne- tovariational profiling, Wiese induction vector, horizontal magnetic tensor.

<<back |