Geological map of Danilov graben-rift of West Siberia. The black rectangle shows a modeling area. Yellow straight lines inside the model area are vertical cross-section profiles. 

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Context 1

... one can see on Figure 3, blocks with opposite to the present geomagnetic field magnetization were inserted at depths from 8.5 to 12. Open Journal of Geology susceptibility of graben-rift basalts (shown in orange colors). At a depth range 1.75 -2.5 km the liparites have worm-like structure that encountered by wells, below a depth of 2.5 km the liparites form lopolithlike body. Highly magnetic Open Journal of Geology negative anomaly under which partly taken into account by bodies with reversed magnetization (Figure 3, zone 5). Further on the cross-section clear seen basalts of the graben-rift with magnetic susceptibility 0.025 SI units and less magnetic liparites (0.007 SI units). At a mark of 40 km, the profile intersect intense mag- netic anomaly (Figure 2, the upper part) above weakly magnetized graben-rift basalts and liparites (Figure 1). The given anomaly can be explained by very magnetic rocks under the graben-rift. On the given cross-section this rocks come from a depth of 12.5 km to a depth of 5.5 km. Further along the cross-section one can observe graben-rift bottom rising from the southwest to the ...

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... massif (Figure 1) are marked by intense magnetic anomaly (about 600 nT in the maximum) (Figure 2, bottom part), which can be seen at 100 km of the profile. An irregular body (Figure 4), which cross-section along the profile reaches a depth of 11.5 km, models the anomaly. Further, there is a long low intensity anomaly (170 nT at the maximum). However, according to the geological map ( Figure 1) here graben basalts are situated and to model the anomaly we entered magnetic body at a depth of 12.5 -6.5 km (Figure 4 and Open Journal of Geology (−260 nT) above them are mainly due to magnetic serpentinites at the west, but requires reversely magnetized rock at a deps from 12.5 to 8.5 km (Figure 3, zone 5) for full ...

Context 3

... massif (Figure 1) are marked by intense magnetic anomaly (about 600 nT in the maximum) (Figure 2, bottom part), which can be seen at 100 km of the profile. An irregular body (Figure 4), which cross-section along the profile reaches a depth of 11.5 km, models the anomaly. Further, there is a long low intensity anomaly (170 nT at the maximum). However, according to the geological map ( Figure 1) here graben basalts are situated and to model the anomaly we entered magnetic body at a depth of 12.5 -6.5 km (Figure 4 and Open Journal of Geology (−260 nT) above them are mainly due to magnetic serpentinites at the west, but requires reversely magnetized rock at a deps from 12.5 to 8.5 km (Figure 3, zone 5) for full ...