In recent years, there has been a growing interest in brown midrib (BMR) sorghum (Sorghum bicolor (L.) Moench.) · sudangrass (Sorghum sudanense Piper) hybrids (SxS) as a replacement for silage corn (Zea mays L.) in the north-eastern USA. Recent studies suggest it is suitable for both rotational grazing and as a hay crop and could compete with corn harvested for silage in years when wet spring c...

В южной части Скифской плиты, в структурно-формационной зоне (СФЗ) Передового хребта (ПХ) Большого Кавказа (БК), известны ранне-среднедевонские вулканические образования, с которыми ассоциируют колчеданные месторождения Урупского района, а также Бесскесское, Быковское, Даутское, Худесское и многочисленные рудопроявления. Петролого-геохимические исследования девонских вулканитов позволяют уточни...

Abstract. Although analyses of tephra-derived glass shards have been undertaken in New Zealand for nearly four decades (pioneered by Paul Froggatt), our study is the first to systematically develop a formal, comprehensive, open-access reference dataset glass-shard compositions tephras. These data will provide an important tool future studies identify and correlate tephra deposits associated pet...

This study reports the first measurements of sulphur and boron isotopic compositions in olivine-hosted melt inclusions (MI) from basaltic lava scoria deposits 1941 Tolbachik eruption, Kamchatka, Russia. The primary aim present is to constrain origin relation silicate-sulphide immiscibility that occurred mafic magmas. Melt fall into two compositionally distinct groups based on their S- B-isotope...

The effect of alkali content (% K2O + %Na2O) on the mechanical properties of alkali activated blast furnace paste has been investigated. The paper presents the study on workability, compressive strength, split tensile strength and microstructure of alkali activated blast furnace slag paste specimens prepared by using of sodium silicate and potassium hydroxide solution as activators. The experim...

Matlab scripts that apply the Bence & Albee (1968) matrix correction algorithm to X-ray intensity data collected as element maps on a Cameca SX-50 microprobe are used to produce two-dimensional maps of oxide weight percent and cation proportions for SiO2, Al2O3, FeO, MnO, MgO, CaO, Na2O and K2O. Once generated, large data sets of mapped oxide weight percent values or cation numbers that retain ...