We present our results of petrographic, mineralogical, spectral, chemical and elemental analysis of the meteorite.We determined that according to structural and textural features mineral and elemental composition, the studied meteorite is an ordinary olivineenstatite chondrite of H4 petrological type.The predominant minerals are rhombic pyroxene and olivine.We determined the presence of sodium plagioclase, feldspar glass, chromespinelides, apatite, chlorapatite, barite, calcite, zircon, titanite, pyrrhotine, kamacite and taenite.Chondres were predominantly represented by radiant-fibrous, grate, cryptocrystalline and porphyry olivine and pyroxene monomineral varieties.We found chondres composed of fine-grained rocks and surrounded by a rim of carbonaceous matter.We determined inclusions of native platinum in the carbon matter and chromespinelides.The regularity of changes in the distribution of iron in the mafic minerals, composing the chondre, was established.
В ðàбîòå пðèвîдяòñя ðåзóëьòàòы ëèòîëîãè÷åñкèх èññëåдîвàíèй è пåðвыå ñвåдåíèя пî èзîòîпíîìó ñîñòàвó вèзåйñèх кàðбîíàòíых пîðîд вîñòî÷íых ðàзðåзîв в бàññåйíå ð.Èëы÷ íà Сåвåðíîì Óðàëå.Èзó÷åííыå пîðîды пðåдñòàвëåíы в îñíîвíîì ðàзëè÷íыìè òèпàìè èзвåñòíякîв (бèîкëàñòîвых, îîëèòîвых, пåëèòîìîðфíых, кîìкîвàòî-ñãóñòкîвых è îбëîìî÷íых), èíîãдà в òîй èëè èíîй ñòåпåíè дîëîìèòèзèðîвàííых èëè îкðåìíåííых.Тåððèãåííыå пîðîды (òîíкîзåðíèñòыå квàðöåвыå пåñ÷àíèкè è àðãèëëèòы) пðèñóòñòвóюò в вèдå пðîñëîåв è ìàëîìîщíых пà÷åк в íèжíåй ÷àñòè ðàзðåзà.Сîîòíîшåíèя ñòàбèëьíых èзîòîпîв óãëåðîдà è кèñëîðîдà в ðàññìàòðèвàåìых пîðîдàх ÷àщå вñåãî ñîãëàñóюòñя ñî ñðåдíåñòàòèñòè÷åñкèìè èх зíà÷åíèяìè в вèзåйñкèх ìîðñкèх кàðбîíàòàх Вîñòî÷íî-Евðîпåйñкîй пëàòфîðìы è Óðàëà.Хàðàкòåð èзìåíåíèя δ 13 С è δ 18 Î в кàðбîíàòíых пîðîдàх ñîîòвåòñòвóåò òðåíдó èз
On the basis of new sedimentation data, regularity of cyclic sequences formation and facies distribution evolution of the Paleozoic North-Ural sedimentary basin is characterised. Reconstruction of environment conditions are spent taking into account new representations about the stratigraphy of the Paleozoic deposits. Are shown some event boundaries that were changing of sedimentary basin framework and new sedimentary models are presented.
The evolution of the Northern-Uralian sedomentaru basin in the Paleozoic is characterized on the basis of sedimentology, cyclic pattern and facies fistibution data. Paleoreconstructions of sedimentary environments were carried out applying new ideas on the Paleozoic stratigraphy. The event boundaries that changed the character of sedimentation are shown, and sedimentation models are built.
Genetic typification of Paleozoic formations deposits of the North Urals sedimentary basin has shown that each formation has characteristic sets of genetic types groups formation-forming, typical usual and atypical. It is established that the great variety of genotypes of carbonate formations reflects differentiation of carbonate platforms landscapes in an astable tectonic regime conditions. The wide distribution of genetic types of mechanical-genetic class testifies to boundaries of change in the sedimentary basin history. Formation-forming genetic types can be used as indicator signs of structural reorganisation of northeast margin of the European continent and evolution of the Paleo-Urals Ocean in the Paleozoic.
Paleozoic sedimentary basins of the northeast European Platform is a component of large megabasin of the northeast passive continental margin of the European continent in the Paleozoic. The establishment of a connection between a paleodynamic history of a basin and its sedimentary formations types, which are the most reliable indicators of geodynamic conditions, is one of the primary problems of modern lithology. Reliable indicators at geodynamic reconstructions are genetically predetermined by laterial and vertical lines of the sedimentary formations. Formations and lithological complexes being the brightest indicators of the paleodynamic regimes change of the basin have been considered formations lines of the passive continental margin of the westuralian type during the Paleozoic.
