On some tuffites of Southern Kalba
Abstract
The existing petrographic classification understands tuffites as complex rocks with pyroclastic and subordinate quantitatively normal sedimentary material. The content of the latter is most often specified in the range of 10-15%. Such a peculiar composition of tuffites results from the specific conditions of their formation, when the products of volcanic eruptions and sedimentary, most often clastic material are simultaneously accumulated in the water basin, mixing with each other. Naturally, organic remains, important to the geologist and usually of little importance in the construction of the rock, may also be found in the composition of such a rock.
References
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