erratic

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References in periodicals archive ?
Glacial erratic blocks and glaciodislocations of the north-western part of the Russian Plain.
The systemic irreconcilability of the various political, economic, and social realities took the form of cast organs, which were like erratic blocks within the interior of the space.
In addition, two erratic blocks discovered in the possible extension of the structure 75 meters to the west of the mineralized showing returned values of 8.