نتایج جستجو برای: tuffs
تعداد نتایج: 354 فیلتر نتایج به سال:
Abstract Renun Segment is located in the center of Sumatran Fault, parallel to Famous Toba Lake Volcano. The fault cuts thick, and vast Young Tuffs (YTT) deposited ∼74,000 years ago during supervolcano eruptions. It shows a series noticeable dextral strike-slip offsets river valleys that deeply incised tuffs. Our study will determine geological slip rate this location by measuring river-valley ...
Research subject. Vendian clay rocks of the Shkapovo-Shikhan depression, which is situated in east Volga-Ural region, and volcanic tuffs present among deposits (Sylvitsa Asha groups) on western slope Middle South Urals. Material methods . The research was conducted using data content main rock-forming oxides about 70 samples tuffs. On this basis, a number indicator ratios (lithochemical modules...
The Permian-Triassic boundary records the most severe mass extinctions in Earth's history. Siberian flood volcanism, the most profuse known such subaerial event, produced 2 million to 3 million cubic kilometers of volcanic ejecta in approximately 1 million years or less. Analysis of (40)Ar/(39)Ar data from two tuffs in southern China yielded a date of 250.0 +/- 0.2 million years ago for the Per...
L. Dunne†, H. L. Gomez, E. da Cunha, S. Charlot, S. Dye, S. Eales, S.J. Maddox K. Rowlands, D.J.B. Smith, R. Auld, M. Baes, D.G. Bonfield, N. Bourne S. Buttiglione, A. Cava, D. L. Clements, K. E. K. Coppin, A. Cooray, A. Dariush G. de Zotti, S. Driver, J. Fritz, J. Geach, R. Hopwood, E. Ibar, R.J. Ivison M.J. Jarvis, L. Kelvin, E. Pascale, M. Pohlen, C. Popescu E.E. Rigby, A. Robotham G. Rodigh...
Various methods are used to prevent the deterioration of biotechnological properties brewer’s yeast during storage. This paper studied use artificial neural networks for mathematical modeling correcting biosynthetic activity seed C34 race storage with natural minerals. The input parameters were suspending medium (water, beer wort, or young beer); type zeolite-containing tuff from Siberian depos...
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