Abstract
Laying down of graded argillaceous sediments with stringers of tuffites and tuffaceous sandstones was followed by the formation of tuffaceous claystone conglomerates in the Goytkh volcanic sedimentary series, while at the same time coarse elastic products of the cordillera disintegration were piling up in littoral zones to the northwest. The equilibrium of this accumulation was disturbed, probably by earthquakes, which set in motion huge volumes of elastic and volcanic material. Tuffaceous claystone conglomerates were deposited over a considerable bottom area as the current slowed down, only to be overlain by argillites, tuffites and tuffaceous sandstones brought along by the suspension currents which followed quiescent sedimentation periods. Second generation inclusions resulted from the moving density current which carried with it both the fresh deposits and those fragments and chunks left behind by earlier flows - a kind of “cannibalism” not uncommon in these regions.--IGR Staff
Published Version
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