Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.430-443
L.G. Porokhovnichenko, R. Kutygin, A. Kilyasov
The Kygyltasian Regional Stage is widespread throughout the Verkhoyansk Region, where it reflects a large transgressive-regressive cycle of the Verkhoyanian terrigenous sedimentation. Over the years, a huge amount of material has been accumulated on biostratigraphic division, facies features, and paleontological characteristics of this large stratigraphic unit, but its age is still debatable. The main fossils in the upper part of the Kygyltasian Regional Stage are higher plants, the remains of which were studied in the last century using outdated taxonomy. This study is devoted to revision of the collection of fossil plants from the type locality of the Kygyltasian Regional Stage (Western Verkhoyanie) in order to clarify the taxonomic composition and the age of the Upper Kygyltasian floristic association. The dominant cordaite leaves in the association were studied using the morphological and microstructural methods. This made it possible to clarify the previous paleontological definitions of the genus Noeggerathiopsis and bring them in line with modern taxonomy. The species Noeggerathiopsis heteroclitus Tolstych and N. khorokytica Tolstych were validated for type specimens. The following species were identified from the Upper Kygyltas Subformation of the Khorokyt section: Cordaites heteroclitus (Tolstych), C. cf. neuburgae Gluchova, C. cf. zalesskyi Durante, C. krychtofovichii (Radczenko), Cordaites ? khorokytica (Tolstych), Cordaites sp. sp. sp. sp. Rufloria ( Praerufloria ) Sphenophyllum cf. Sphenophyllum ? sp., Sphenopteris sp., Paracalamites sp. Based on the results of the study, the Upper Kygyltasian floristic association of the Western Verkhoyansk Region was compared with floristic associations of the Alykaeva Formation (Kuzbass) and the Upper Kata Subformation (Tunguska basin). From the above, the Late Carboniferous age of the upper part of the Kygyltasian Regional Stage follows. The results obtained are in good agreement with the correlation of the Verkhoyanian Carboniferous-Permian deposits for marine invertebrates.
吉尔吉斯区域阶段广泛分布于维尔霍扬斯克地区，反映了韦尔霍扬期陆源沉积的一次大型海侵-退回旋回。多年来，人们对这一大型地层单元的生物地层划分、相特征、古生物学特征等方面积累了大量资料，但其年代仍有争议。吉尔吉斯区域阶段上部的主要化石为高等植物，这些植物的遗存是在上个世纪使用过时的分类方法进行研究的。本文对Kygyltasian Regional Stage (Western Verkhoyanie)模式地区的植物化石标本进行了修订，以明确Kygyltasian Upper flora association的分类组成和时代。用形态学和显微结构的方法研究了该组合中的优势叶片。这使得澄清以前对Noeggerathiopsis属的古生物定义成为可能，并使它们与现代分类学保持一致。以Noeggerathiopsis heteroclitus Tolstych和N. khorokytica Tolstych为模式标本进行了验证。在Khorokyt剖面上Kygyltas亚组中鉴定到的种有:Cordaites heteroclitus (Tolstych)， C. cfneuburgae Gluchova, C. cfzalesskyi Durante, C. krychtofovichii (Radczenko)， Cordaites ?花椰菜(Tolstych)， Cordaites sp. sp. Rufloria (Praerufloria)在此基础上，将西部Verkhoyansk地区上Kygyltasian的区系组合与库兹巴斯地区Alykaeva组和通古斯盆地上Kata亚组的区系组合进行了比较。由此推断出晚石炭世为吉尔吉斯区域阶段上半部分。所得结果与Verkhoyanian石炭-二叠纪海洋无脊椎动物沉积对比结果吻合较好。
{"title":"About the Age of Fossil Flora of the Kygyltasian Regional Stage of the Upper Paleozoic in the Verkhoyansk Region, Northeastern Russia","authors":"L.G. Porokhovnichenko, R. Kutygin, A. Kilyasov","doi":"10.26907/2542-064x.2021.3.430-443","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.430-443","url":null,"abstract":"The Kygyltasian Regional Stage is widespread throughout the Verkhoyansk Region, where it reflects a large transgressive-regressive cycle of the Verkhoyanian terrigenous sedimentation. Over the years, a huge amount of material has been accumulated on biostratigraphic division, facies features, and paleontological characteristics of this large stratigraphic unit, but its age is still debatable. The main fossils in the upper part of the Kygyltasian Regional Stage are higher plants, the remains of which were studied in the last century using outdated taxonomy. This study is devoted to revision of the collection of fossil plants from the type locality of the Kygyltasian Regional Stage (Western Verkhoyanie) in order to clarify the taxonomic composition and the age of the Upper Kygyltasian floristic association. The dominant cordaite leaves in the association were studied using the morphological and microstructural methods. This made it possible to clarify the previous paleontological definitions of the genus Noeggerathiopsis and bring them in line with modern taxonomy. The species Noeggerathiopsis heteroclitus Tolstych and N. khorokytica Tolstych were validated for type specimens. The following species were identified from the Upper Kygyltas Subformation of the Khorokyt section: Cordaites heteroclitus (Tolstych), C. cf. neuburgae Gluchova, C. cf. zalesskyi Durante, C. krychtofovichii (Radczenko), Cordaites ? khorokytica (Tolstych), Cordaites sp. sp. sp. sp. Rufloria ( Praerufloria ) Sphenophyllum cf. Sphenophyllum ? sp., Sphenopteris sp., Paracalamites sp. Based on the results of the study, the Upper Kygyltasian floristic association of the Western Verkhoyansk Region was compared with floristic associations of the Alykaeva Formation (Kuzbass) and the Upper Kata Subformation (Tunguska basin). From the above, the Late Carboniferous age of the upper part of the Kygyltasian Regional Stage follows. The results obtained are in good agreement with the correlation of the Verkhoyanian Carboniferous-Permian deposits for marine invertebrates.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72753414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.4.581-590
I. Novikov, A. V. Uliakhin, V. Silantiev
{"title":"A Previously Unknown Specimen of the Temnospondyl Amphibian Parotosuchus bogdoanus (Woodward, 1932) from the Lower Triassic of Eastern Europe","authors":"I. Novikov, A. V. Uliakhin, V. Silantiev","doi":"10.26907/2542-064x.2021.4.581-590","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.4.581-590","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73129568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.414-429
E. N. Gorozhanina, E. Bashlykova, E. Kulagina
{"title":"Microfacies of the Tulian Horizon (Visean Stage, Lower Carboniferous) of the Sikaza 2 Section (Southern Urals, Russia)","authors":"E. N. Gorozhanina, E. Bashlykova, E. Kulagina","doi":"10.26907/2542-064x.2021.3.414-429","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.414-429","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77398285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.514-526
A. R. Yusupova, N. Nourgalieva
{"title":"Geochemical Basis of Climate Change Indication in the Holocene Sediments of Lake Bannoe (Southern Urals, Russia)","authors":"A. R. Yusupova, N. Nourgalieva","doi":"10.26907/2542-064x.2021.3.514-526","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.514-526","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80131947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.2.238-250
A. V. Uliakhin
The variability of the dermal elements of the pectoral girdle (clavicle, interclavicle), as the most morphologically informative part of the postcranial skeleton in the archegosaurid amphibian Platyoposaurus from the Middle Permian of Eastern Europe, was studied. Based on the considered morphological characters of the clavicle and interclavicle in P. watsoni , the increasing complexity of ornamentation of the dermal elements (a growth of the cellular area in the ossification center as additional cells appear, more complex branching of the radial grooves) with size was established for the first time using the morphometric parameters. The age-related ornament transformation favored the acquisition of additional strength with an increase in the load on the shoulder girdle during the growth process and in the body weight. It was found that the structural characters of the cellular area and radial ridges and also the morphometric parameters (lateral inclination angle of the dorsal process, the ratio of the width of the interclavicle plate to its length from the posterior end to the ossification center) can serve as additional diagnostic features to distinguish both Platyoposaurus from others archegosauroids and between the species of the genus under consideration. Individual differences were detected mainly in the analysis of the structure of the dorsal process of the same-sized clavicles: the lamina posterior is straightened or arcuate; the lamina anterior is straight or arcuate.
{"title":"Variability of the Dermal Elements of the Pectoral Girdle in Platyoposaurus (Temnospondyli, Archegosauridae) from the Middle Permian of Eastern Europe","authors":"A. V. Uliakhin","doi":"10.26907/2542-064x.2021.2.238-250","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.2.238-250","url":null,"abstract":"The variability of the dermal elements of the pectoral girdle (clavicle, interclavicle), as the most morphologically informative part of the postcranial skeleton in the archegosaurid amphibian Platyoposaurus from the Middle Permian of Eastern Europe, was studied. Based on the considered morphological characters of the clavicle and interclavicle in P. watsoni , the increasing complexity of ornamentation of the dermal elements (a growth of the cellular area in the ossification center as additional cells appear, more complex branching of the radial grooves) with size was established for the first time using the morphometric parameters. The age-related ornament transformation favored the acquisition of additional strength with an increase in the load on the shoulder girdle during the growth process and in the body weight. It was found that the structural characters of the cellular area and radial ridges and also the morphometric parameters (lateral inclination angle of the dorsal process, the ratio of the width of the interclavicle plate to its length from the posterior end to the ossification center) can serve as additional diagnostic features to distinguish both Platyoposaurus from others archegosauroids and between the species of the genus under consideration. Individual differences were detected mainly in the analysis of the structure of the dorsal process of the same-sized clavicles: the lamina posterior is straightened or arcuate; the lamina anterior is straight or arcuate.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82916538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.2.177-208
M. Rudakova, P. Galitskaya, S. Selivanovskaya
This paper discusses the latest trends in studying and using biosurfactants, surfactant biomolecules produced by microorganisms. Biosurfactants were considered as an alternative to synthetic surfactants. The basic principles of producing, screening and characterizing biosurfactants were reviewed. Their physicochemical properties were singled out. The modern understanding of a relationship between the properties of biosurfactants and their practical use was analyzed. Particular attention was paid to the research works focused on the potential use of biosurfactants, as well as the current and major challenges of their production and application in the real sector of economy. The already existing world biosurfactant market was described. An outlook on its possible future development was provided.
{"title":"Biosurfactants: Current Application Trends","authors":"M. Rudakova, P. Galitskaya, S. Selivanovskaya","doi":"10.26907/2542-064x.2021.2.177-208","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.2.177-208","url":null,"abstract":"This paper discusses the latest trends in studying and using biosurfactants, surfactant biomolecules produced by microorganisms. Biosurfactants were considered as an alternative to synthetic surfactants. The basic principles of producing, screening and characterizing biosurfactants were reviewed. Their physicochemical properties were singled out. The modern understanding of a relationship between the properties of biosurfactants and their practical use was analyzed. Particular attention was paid to the research works focused on the potential use of biosurfactants, as well as the current and major challenges of their production and application in the real sector of economy. The already existing world biosurfactant market was described. An outlook on its possible future development was provided.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77056227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.466-476
A. Tyurin, A. V. Kolomoets, A. Snachev, I. Smoleva, P. Pankrat’ev
The oil and gas potential prospects of the Magnitogorsk trough in the South Urals were studied and substantiated using the data of the geological survey and deep-well drilling. Based on the results of the seismic, gravity, and magnetic explorations, a large unit was detected in the Lower-Middle Carboniferous carbonates of the Kizil zone. The oil and gas blowouts were registered in the drill holes. To further explore the oil and gas potential of the region, the features of black shales were analyzed. It was shown that the Kumak ore field shales are promising sources of oil, depression analogues of the Lower-Middle Carboniferous shelf carbonates. Therefore, we recommend that the black shales of the South Urals should be further studied for their oil and gas potential. The major tasks for future research are as follows: localization of facies of the carbonate sedimentation basin within the Magnitogorsk trough and the East Urals uplift, as well as development of its geological and geophysical model; assessment of the oil and gas potential prospects of the region with the help of the developed model; substantiation of regional CMP seismic surveys.
{"title":"Carbonaceous Deposits (Carboniferous) and Oil and Gas Potential Prospects of the Magnitogorsk Trough (South Urals, Russia)","authors":"A. Tyurin, A. V. Kolomoets, A. Snachev, I. Smoleva, P. Pankrat’ev","doi":"10.26907/2542-064x.2021.3.466-476","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.466-476","url":null,"abstract":"The oil and gas potential prospects of the Magnitogorsk trough in the South Urals were studied and substantiated using the data of the geological survey and deep-well drilling. Based on the results of the seismic, gravity, and magnetic explorations, a large unit was detected in the Lower-Middle Carboniferous carbonates of the Kizil zone. The oil and gas blowouts were registered in the drill holes. To further explore the oil and gas potential of the region, the features of black shales were analyzed. It was shown that the Kumak ore field shales are promising sources of oil, depression analogues of the Lower-Middle Carboniferous shelf carbonates. Therefore, we recommend that the black shales of the South Urals should be further studied for their oil and gas potential. The major tasks for future research are as follows: localization of facies of the carbonate sedimentation basin within the Magnitogorsk trough and the East Urals uplift, as well as development of its geological and geophysical model; assessment of the oil and gas potential prospects of the region with the help of the developed model; substantiation of regional CMP seismic surveys.","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76302193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.371-389
F. Mouraviev, N. Khasanova, E.Z. Yunusova
{"title":"Dolomitic Calcretes from the Changhsignian (Upper Permian) Red Beds of the Orenburg Cis-Urals, Russia","authors":"F. Mouraviev, N. Khasanova, E.Z. Yunusova","doi":"10.26907/2542-064x.2021.3.371-389","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.371-389","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72738824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.3.477-489
E. Yachmeneva, D. Khassanov, E. Grunis
{"title":"Modeling of the Elastic Properties of Bitumen-Saturated Sandstone in the Deposits of the Ufimian Stage of the Permian System","authors":"E. Yachmeneva, D. Khassanov, E. Grunis","doi":"10.26907/2542-064x.2021.3.477-489","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.3.477-489","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77828337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.26907/2542-064x.2021.4.626-642
Y. Perevedentsev, K. Shantalinsky, N. V. Ismagilov, V. Guryanov, A. Nikolaev, T. R. Auhadeev
{"title":"Thermal Regime in the Troposphere, Stratosphere, and Mesosphere of the Northern Polar Zone in 1979–2019","authors":"Y. Perevedentsev, K. Shantalinsky, N. V. Ismagilov, V. Guryanov, A. Nikolaev, T. R. Auhadeev","doi":"10.26907/2542-064x.2021.4.626-642","DOIUrl":"https://doi.org/10.26907/2542-064x.2021.4.626-642","url":null,"abstract":"","PeriodicalId":23418,"journal":{"name":"Uchenye Zapiski Kazanskogo Universiteta. Seriya Estestvennye Nauki","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78905548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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