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Solid solutions (SSs) based on CaYb 2 S 4 (Yb 3 S 4 structural type) and BaSm 2 S 4 (CaFe 2 O 4 structural type) were prepared using the ceramic and chemical methods for the preparation of oxide precursors. The samples were certified by XRD and electron microscopy. The electric conductivity and thermal stability of the samples were studied. The electron transport numbers were determined by the Hebb-Wagner method.

Исходные данные. Приведены новые данные по морфологии и геохимии гераклитов, которые представляют собой специфические продукты разрушения карбонатных палеопостроек прокариот около зон дегазации миоценового возраста. Гераклиты алевритовой и псаммитовой структур получили название микрометанолитов. Анализ имеющихся в литературе данных показывает, что образование гераклитов происходило, возможно, в верхней части осадочной толщи в условиях повышенных содержаний метана вблизи его струйных выходов. Методы исследования. Геохимическая характеристика гераклитов различного цвета и морфологии изучена методом ICP-MS в ЦКП "Геоаналитик" ИГГ УрО РАН г. Екатеринбурга. Результаты исследования. По литологическим особенностям и морфологии обломков выделены следующие разновидности гераклитов-шлаковидные, полосчатые, угловатые и плит цементации.

The possibility of synthesizing sulfide conducting solid electrolytes based on the ternary sulfides MeLn 2 S 4 doped with the binary sulfides S 3 has been approved and the influence of dopants on the elec trolytic properties of the basic compounds has been investigated for the first time. The influence of the spe cific features of the method used for synthesizing complex sulfide phases from nanometer sized oxide precur sors on the important functional properties of the solid electrolytes has been analyzed. The samples have been examined using the X ray powder diffraction analysis, electron scanning microscopy, and electron micro probe analysis. The region of the existence of the solid solutions has been determined, the total electrical con ductivity has been studied, and the activation energy for electrical conduction for samples with different dopant contents has been calculated. The ionic and electronic transfer numbers have been determined using the modified versions of the emf method and the Hebb-Wagner polarization method. A possible mechanism of defect formation has been proposed.