Ruslan Kutygin - Profile on Academia.edu (original) (raw)

Papers by Ruslan Kutygin

Research paper thumbnail of First goniatite Svetlanoceras finds in Northeastern Asia 2015 RUS

In the Tuorasis Formation section of the lower reaches of Lena River (Northern Verkhoyansk Region... more In the Tuorasis Formation section of the lower reaches of Lena River (Northern Verkhoyansk Region, Kharaulakh ridge) were first found of the goniatite Svetlanoceras, defined as S. strigosum (Ruzhencev), which had previously been known only in the Southern Urals. Kharaulakh Svetlanoceras were found at the same level with numerous Bulunites mezhvilki Andrianov (the species-index of the same ammonoids Beds of the Lower Permian in the Verkhoyansk Region) and with single Eoasianites maximovae (Andrianov). The finds of S. strigosum indicates migration of the South Ural Ammonoids in the Kharaulakh subzone of the Verkhoyansk water area of Khorokytian age and suggests the Asselian age of the Khorokytian Ammonoids Asociatian, which characterizes the Bulunites mezhvilki Beds of the Khorokytian Horizon in the Verkhoyansk Region.

Research paper thumbnail of Petrochemical features of the boundary deposits from the Lower-Middle Carboniferous of the Western Verkhoyansk Region 2012 RUS

Chemical composition of different types of the sedimentary rocks of Serdzhakhian Formation and Im... more Chemical composition of different types of the sedimentary rocks of Serdzhakhian Formation and Imtandzhian Formation from the Lower—Middle Carboniferous Western Verkhoyansk (Chechim-Bal River basin) is studied for the first time. Volcanogenic material of dacite composition is identified in all types of the rocks application of petrochemical criteria allowed the identification of tuffs and tephroides among volcanites.

Research paper thumbnail of Permian Ammonoids of the Okhotsk Region, Northeast Asia 2015 ENG

Beds with ammonoids are recognized as a result of the study of goniatitids and prolecanitids from... more Beds with ammonoids are recognized as a result of the study of goniatitids and prolecanitids from the Nyut, Khuren, and Ayan_Yuryakh in the Okhotsk Region. Beds with Neopronorites tenkensis, assigned to the Upper Artinskian Substage, correspond to the upper part of the Echian Horizon of the Verkhoyansk Region. Beds with Paragastrioceras–Baraioceras characterize the middle part of the Kungurian Stage and correlate with the upper sunhorizon of the Tumarian Horizon of the Verkhoyansk Region. Beds with Sverdrupites harkeri correspond to a biostratigraphic subdivision with the same name widely distributed in the Vekhoyansk-Kolyma Region and assigned to the Roadian Stage. The new species Neopronorites tenkensis is described.

Research paper thumbnail of On the evolution of the external shell morphology of the Sakmarian species of the genus Uraloceras 2015 RUS

The major morphological characters of the genus Uraloceras are summarized. It is shown that the e... more The major morphological characters of the genus Uraloceras are summarized. It is shown that the early evolution history of the genus was dominated by the U. simense group, which split in the Mid-Sakmarian into two subgroups: with moderately evolute and moderately involute shells. U. burtiense, which was initial in the evolution of the major phylogenetic lineage in the Artinskian, represented a separate morphogenetic branch of the early Uraloceras species.

Research paper thumbnail of Biogeographical relationships of the Verkhoyansk-Okhotsk and Kolyma-Omolon Permian Ammonoids 2015 RUS

In the second half of the Asselian and first half of the Sakmarian the Verkhoyansk and Omolon amm... more In the second half of the Asselian and first half of the Sakmarian the Verkhoyansk and Omolon ammonoid assemblages were formed, in which local elements (Bulunites, Kolymoglaphyrites) were dominated. Since the beginning of large Echian transgression at the turn of the early and late Sakmarian almost complete taxonomic regeneration of the Ammonoids happened due to a wide expansion of the Ural elements Uraloceras, Paragastrioceras, Andrianovia, Tabantalites) well adapted to the local environmental conditions. In the Early Artinskian the period of maximum sea warming brief invasion of the Ural biota (Neoshumardites) in the Western Verkhoyansk region took place. In the middle of the Artinskian a new ammonoid assemblage formed in the Verkhoyansk basin mostly from local elements (Eotumaroceras). The Verkhoyansk ammonoid area constantly expanded, and the assemblage transformed first to the Verkhoyansk-Okhotsk assemblage (Late Artinskian), and then to Verkhoyansk-Omolon assemblage (Kungurian – Roadian). Thus a succession of ammonoid associations took place with domination of genera of a local origin, but spread widely beyond Northeast Asia (Tumaroceras, Neouddenites, Biarmiceras, Epijuresanites, Sverdrupites). The Permian Verkhoyansk-Omolon ammonoid assemblage disappeared at the Late Roadian.

Research paper thumbnail of Ammonoid-based correlation of asselian-sakmarian Beds in Northeastern Asia 2015 RUS

Problems in the Lower Permian correlations of Northeastern Asia are briefly summarized. It is est... more Problems in the Lower Permian correlations of Northeastern Asia are briefly summarized. It is established that the Asselian-Sakmarian ammonoid assemblages of the Verkhoyansk Region and the Omolon Massif were highly endemic, which complicates direct correlations between these regions. The oldest taxa in common was Uraloceras omolonense Bogoslovskaya et Boiko, the appearance of which in the sections of Northeastern Asia allows recognition of the Uraloceras omolonense Zone.

Research paper thumbnail of A New Most Ancient Permian Inoceramus-Like Bivalve of the Genus Aphanaia Koninck from Northeastern Asia 2015 ENG

The most ancient representative of Permian Inoceramus_like bivalves, Aphanaia kletzi sp. nov., fr... more The most ancient representative of Permian Inoceramus_like bivalves, Aphanaia kletzi sp. nov., from the Upper Sakmarian of the Western Verkhoyansk Region (northeastern Asia) is described. It is established for the first time that the first kolymiids appeared in the northeastern Asian basins in the latter half of the Sakmarian rather than at the end of the Artinskian. The age of the record is reliably dated by the ammonoid genera Uraloceras and Neoshumardites.

Research paper thumbnail of High-resolution stratigraphy of the Upper Jurassic section (Laptev Sea coast)

Jurassic strata are widespread through Arctic Siberia and host oil and gas fields. However, in mo... more Jurassic strata are widespread through Arctic Siberia and host oil and gas fields. However, in most cases, the geology of such vast areas still remains unexplored, and study of the Jurassic stratigraphy and reconstructions of geologic history are possible only through analysis of sediment cores. In this connection, there is a clear need for detailed studies of microfaunas (foraminifera, ostracods) and palynomorphs (dinocysts, spores, and pollen). The studied reference section of the Upper Jurassic and Lower Cretaceous is located on the left side of Anabar Bay of the Laptev Sea (Nordvik Peninsula, Cape Urdyuk-Khaya). An uninterrupted and continuous section from the Upper Oxfordian to the Lower Valanginian is exposed in coastal cliffs and consists mainly of silty clay deposits with abundant macro- and microfossils. Integrated field studies (biostratigraphy, lithostratigraphy, sedimentology) allow a more detailed characterization of the regional geologic framework. A detailed subdivision of the section is based on the systematic composition of ammonites from Upper Oxfordian and Kimmeridgian deposits. Several foraminiferal zones of the Upper Oxfordian and Lower Volgian are defined, and some of them are denfined for the first time. The distribution of ostracods in the section is analyzed for the first time. The section is also studied using palynological analysis, that results in its detailed subdivision on palynological data and recognition of two sequences of palynostratigraphic units. The integrated stratigraphy is used to establish the precise position of stage and substage boundaries. The continuity of the section is defined based on micropaleontological and palynological data.

Research paper thumbnail of About the Permian ammonoids of Okhotsk region 2014 RUS

Research paper thumbnail of Biostratigraphy and brachiopods of the Asselian-Sakmarian of the Kubalakh section (lower reaches of the Lena River) 2014 RUS

Ñòðà òèã ðà ôèÿ, ðå ãè î íàëü íàÿ ãå î ëî ãèÿ è òåê òî íè êà ÓÄÊ 564.53(571.56) Ó Â.È.Ìà êî øèí, ... more Ñòðà òèã ðà ôèÿ, ðå ãè î íàëü íàÿ ãå î ëî ãèÿ è òåê òî íè êà ÓÄÊ 564.53(571.56) Ó Â.È.Ìà êî øèí, Ð.Â.Êó òû ãèí, 2014

Research paper thumbnail of Permian Ammonoids of the Kolyma–Omolon Region: Ogonerian Association 2013

The Ogonerian association of Early Permian ammonoids from the Upper part of the Munu gudzhakian F... more The Ogonerian association of Early Permian ammonoids from the Upper part of the Munu gudzhakian Formation (upper part of the Ogonerian Horizon) contains Uraloceras omolonense Bogoslovskaya et Boiko, U. kolymense Bogoslovskaya et Boiko, Neoshumardites munugudzhensis sp. nov., N.? nassichuki sp. nov., and Bulunites gracilis sp. nov. These taxa suggest the Sakmarian-Artinskian boundary beds examined are geochronologically older than the level with Neoshumardites triceps Ruzhencev in the South Ural Mountains.

Research paper thumbnail of Biostratigraphy and brachiopods of the Asselian-Artinskian of the Arkachan-Echij watershed (Western Verkhoyansk) 2013 RUS

Research paper thumbnail of Jakutoproductus insignis Beds in the Lower Permian of the Western Verkhoyansk RUS

В результате изучения коллекций брахиопод из нижнепермских отложений басс. рр. Дянышка, Тумара, К... more В результате изучения коллекций брахиопод из нижнепермских отложений басс. рр. Дянышка, Тумара, Келе, Дулгалах уточнена биостратиграфическая последовательность представителей рода Jakutoproductus в З ападном Верхоянье. В нижней части слоев с J. rugosus эчийского горизонта нижней перми обособлен интервал, содержащий вид Jakutoproductus insignis, отчетливо прослеживающийся в регионе. Выделение в Западном Верхоянье слоев с J. insignis позволило уточнить внутрирегиональную корреляцию сакмарских отложений и пересмотреть сопоставление биостратиграфических шкал нижней части перми Верхояно-Охотского и Колымо-Омолонского регионов.

Research paper thumbnail of Graphic modeling of development of the ammonoid shell shape 1998 Rus

Кутыгин Р.В. Графическое моделирование развития формы раковины аммоноидей. Отечественная геология... more Кутыгин Р.В. Графическое моделирование развития формы раковины аммоноидей. Отечественная геология. 1998. № 6. С. 32-37. Kutygin R. V. Graficheskoje modelirovanie rakovin ammonoidej [The Graphic modeling of development of the am monoid shell shape].

Research paper thumbnail of Ontogeny of the Ammonoid Genus Dactylioceras from Northeastern Russia 2000

The ontogeny of the ammonoid genus Dactylioceras is studied for the first time and the stages in ... more The ontogeny of the ammonoid genus Dactylioceras is studied for the first time and the stages in the ontogenetic development of their ornament, shell shape, and suture are shown. The taxonomic significance of the characters and the range of intraspecific variations is analyzed.

Research paper thumbnail of The Genus Dactylioceras (Ammonoidea) from Northeastern Russia 2000

The taxonomy of the genus Dactylioceras from Northeastern Russia is revised. Previous identificat... more The taxonomy of the genus Dactylioceras from Northeastern Russia is revised. Previous identifications of D. athleticum from the Toarcian of Siberia were misinterpreted. Hence, this species cannot be used as an index zonal fossil for the Lower Toarcian of Siberia.

Research paper thumbnail of The shape of medial spiral in ammonoids 2009 Rus

Research paper thumbnail of Methods for Studying Ammonoid Shell Shape 2006

Research paper thumbnail of Shell Shapes of Permian Ammonoids from Northeastern Russia

A new classification of the planispiral ammonoid shells including 35 major conch types is propose... more A new classification of the planispiral ammonoid shells including 35 major conch types is proposed. The ontogenetic changes in the conch shape of Permian ammonoids from Northeastern Russia are described.

Research paper thumbnail of Toarcian Zonal Standard of North-East Asia 2003 Rus

УДК 56 :551.762.13(571.5) (571.65) ББК 26.323 К54 Рецензенты: доктор геол.-минер. наук К.Е. Колод... more УДК 56 :551.762.13(571.5) (571.65) ББК 26.323 К54 Рецензенты: доктор геол.-минер. наук К.Е. Колодезников кандидаты геол.-минер. наук В.В. Баранов, В.П. Тарабукин Утверждено к печати ученым советом Института геологии алмаза и благородных металлов СО РАН Князев В.Г., Девятов В.П., Кутыгин Р.В., Никитенко Б.Л., Шурыгин Б.Н. Зональный стандарт тоарского яруса Северо-Востока Азии / Отв. ред. С.П. Ермакова. -Якутск: ЯФ Изд-ва СО РАН, 2003. -105 с.

Research paper thumbnail of First goniatite Svetlanoceras finds in Northeastern Asia 2015 RUS

In the Tuorasis Formation section of the lower reaches of Lena River (Northern Verkhoyansk Region... more In the Tuorasis Formation section of the lower reaches of Lena River (Northern Verkhoyansk Region, Kharaulakh ridge) were first found of the goniatite Svetlanoceras, defined as S. strigosum (Ruzhencev), which had previously been known only in the Southern Urals. Kharaulakh Svetlanoceras were found at the same level with numerous Bulunites mezhvilki Andrianov (the species-index of the same ammonoids Beds of the Lower Permian in the Verkhoyansk Region) and with single Eoasianites maximovae (Andrianov). The finds of S. strigosum indicates migration of the South Ural Ammonoids in the Kharaulakh subzone of the Verkhoyansk water area of Khorokytian age and suggests the Asselian age of the Khorokytian Ammonoids Asociatian, which characterizes the Bulunites mezhvilki Beds of the Khorokytian Horizon in the Verkhoyansk Region.

Research paper thumbnail of Petrochemical features of the boundary deposits from the Lower-Middle Carboniferous of the Western Verkhoyansk Region 2012 RUS

Chemical composition of different types of the sedimentary rocks of Serdzhakhian Formation and Im... more Chemical composition of different types of the sedimentary rocks of Serdzhakhian Formation and Imtandzhian Formation from the Lower—Middle Carboniferous Western Verkhoyansk (Chechim-Bal River basin) is studied for the first time. Volcanogenic material of dacite composition is identified in all types of the rocks application of petrochemical criteria allowed the identification of tuffs and tephroides among volcanites.

Research paper thumbnail of Permian Ammonoids of the Okhotsk Region, Northeast Asia 2015 ENG

Beds with ammonoids are recognized as a result of the study of goniatitids and prolecanitids from... more Beds with ammonoids are recognized as a result of the study of goniatitids and prolecanitids from the Nyut, Khuren, and Ayan_Yuryakh in the Okhotsk Region. Beds with Neopronorites tenkensis, assigned to the Upper Artinskian Substage, correspond to the upper part of the Echian Horizon of the Verkhoyansk Region. Beds with Paragastrioceras–Baraioceras characterize the middle part of the Kungurian Stage and correlate with the upper sunhorizon of the Tumarian Horizon of the Verkhoyansk Region. Beds with Sverdrupites harkeri correspond to a biostratigraphic subdivision with the same name widely distributed in the Vekhoyansk-Kolyma Region and assigned to the Roadian Stage. The new species Neopronorites tenkensis is described.

Research paper thumbnail of On the evolution of the external shell morphology of the Sakmarian species of the genus Uraloceras 2015 RUS

The major morphological characters of the genus Uraloceras are summarized. It is shown that the e... more The major morphological characters of the genus Uraloceras are summarized. It is shown that the early evolution history of the genus was dominated by the U. simense group, which split in the Mid-Sakmarian into two subgroups: with moderately evolute and moderately involute shells. U. burtiense, which was initial in the evolution of the major phylogenetic lineage in the Artinskian, represented a separate morphogenetic branch of the early Uraloceras species.

Research paper thumbnail of Biogeographical relationships of the Verkhoyansk-Okhotsk and Kolyma-Omolon Permian Ammonoids 2015 RUS

In the second half of the Asselian and first half of the Sakmarian the Verkhoyansk and Omolon amm... more In the second half of the Asselian and first half of the Sakmarian the Verkhoyansk and Omolon ammonoid assemblages were formed, in which local elements (Bulunites, Kolymoglaphyrites) were dominated. Since the beginning of large Echian transgression at the turn of the early and late Sakmarian almost complete taxonomic regeneration of the Ammonoids happened due to a wide expansion of the Ural elements Uraloceras, Paragastrioceras, Andrianovia, Tabantalites) well adapted to the local environmental conditions. In the Early Artinskian the period of maximum sea warming brief invasion of the Ural biota (Neoshumardites) in the Western Verkhoyansk region took place. In the middle of the Artinskian a new ammonoid assemblage formed in the Verkhoyansk basin mostly from local elements (Eotumaroceras). The Verkhoyansk ammonoid area constantly expanded, and the assemblage transformed first to the Verkhoyansk-Okhotsk assemblage (Late Artinskian), and then to Verkhoyansk-Omolon assemblage (Kungurian – Roadian). Thus a succession of ammonoid associations took place with domination of genera of a local origin, but spread widely beyond Northeast Asia (Tumaroceras, Neouddenites, Biarmiceras, Epijuresanites, Sverdrupites). The Permian Verkhoyansk-Omolon ammonoid assemblage disappeared at the Late Roadian.

Research paper thumbnail of Ammonoid-based correlation of asselian-sakmarian Beds in Northeastern Asia 2015 RUS

Problems in the Lower Permian correlations of Northeastern Asia are briefly summarized. It is est... more Problems in the Lower Permian correlations of Northeastern Asia are briefly summarized. It is established that the Asselian-Sakmarian ammonoid assemblages of the Verkhoyansk Region and the Omolon Massif were highly endemic, which complicates direct correlations between these regions. The oldest taxa in common was Uraloceras omolonense Bogoslovskaya et Boiko, the appearance of which in the sections of Northeastern Asia allows recognition of the Uraloceras omolonense Zone.

Research paper thumbnail of A New Most Ancient Permian Inoceramus-Like Bivalve of the Genus Aphanaia Koninck from Northeastern Asia 2015 ENG

The most ancient representative of Permian Inoceramus_like bivalves, Aphanaia kletzi sp. nov., fr... more The most ancient representative of Permian Inoceramus_like bivalves, Aphanaia kletzi sp. nov., from the Upper Sakmarian of the Western Verkhoyansk Region (northeastern Asia) is described. It is established for the first time that the first kolymiids appeared in the northeastern Asian basins in the latter half of the Sakmarian rather than at the end of the Artinskian. The age of the record is reliably dated by the ammonoid genera Uraloceras and Neoshumardites.

Research paper thumbnail of High-resolution stratigraphy of the Upper Jurassic section (Laptev Sea coast)

Jurassic strata are widespread through Arctic Siberia and host oil and gas fields. However, in mo... more Jurassic strata are widespread through Arctic Siberia and host oil and gas fields. However, in most cases, the geology of such vast areas still remains unexplored, and study of the Jurassic stratigraphy and reconstructions of geologic history are possible only through analysis of sediment cores. In this connection, there is a clear need for detailed studies of microfaunas (foraminifera, ostracods) and palynomorphs (dinocysts, spores, and pollen). The studied reference section of the Upper Jurassic and Lower Cretaceous is located on the left side of Anabar Bay of the Laptev Sea (Nordvik Peninsula, Cape Urdyuk-Khaya). An uninterrupted and continuous section from the Upper Oxfordian to the Lower Valanginian is exposed in coastal cliffs and consists mainly of silty clay deposits with abundant macro- and microfossils. Integrated field studies (biostratigraphy, lithostratigraphy, sedimentology) allow a more detailed characterization of the regional geologic framework. A detailed subdivision of the section is based on the systematic composition of ammonites from Upper Oxfordian and Kimmeridgian deposits. Several foraminiferal zones of the Upper Oxfordian and Lower Volgian are defined, and some of them are denfined for the first time. The distribution of ostracods in the section is analyzed for the first time. The section is also studied using palynological analysis, that results in its detailed subdivision on palynological data and recognition of two sequences of palynostratigraphic units. The integrated stratigraphy is used to establish the precise position of stage and substage boundaries. The continuity of the section is defined based on micropaleontological and palynological data.

Research paper thumbnail of About the Permian ammonoids of Okhotsk region 2014 RUS

Research paper thumbnail of Biostratigraphy and brachiopods of the Asselian-Sakmarian of the Kubalakh section (lower reaches of the Lena River) 2014 RUS

Ñòðà òèã ðà ôèÿ, ðå ãè î íàëü íàÿ ãå î ëî ãèÿ è òåê òî íè êà ÓÄÊ 564.53(571.56) Ó Â.È.Ìà êî øèí, ... more Ñòðà òèã ðà ôèÿ, ðå ãè î íàëü íàÿ ãå î ëî ãèÿ è òåê òî íè êà ÓÄÊ 564.53(571.56) Ó Â.È.Ìà êî øèí, Ð.Â.Êó òû ãèí, 2014

Research paper thumbnail of Permian Ammonoids of the Kolyma–Omolon Region: Ogonerian Association 2013

The Ogonerian association of Early Permian ammonoids from the Upper part of the Munu gudzhakian F... more The Ogonerian association of Early Permian ammonoids from the Upper part of the Munu gudzhakian Formation (upper part of the Ogonerian Horizon) contains Uraloceras omolonense Bogoslovskaya et Boiko, U. kolymense Bogoslovskaya et Boiko, Neoshumardites munugudzhensis sp. nov., N.? nassichuki sp. nov., and Bulunites gracilis sp. nov. These taxa suggest the Sakmarian-Artinskian boundary beds examined are geochronologically older than the level with Neoshumardites triceps Ruzhencev in the South Ural Mountains.

Research paper thumbnail of Biostratigraphy and brachiopods of the Asselian-Artinskian of the Arkachan-Echij watershed (Western Verkhoyansk) 2013 RUS

Research paper thumbnail of Jakutoproductus insignis Beds in the Lower Permian of the Western Verkhoyansk RUS

В результате изучения коллекций брахиопод из нижнепермских отложений басс. рр. Дянышка, Тумара, К... more В результате изучения коллекций брахиопод из нижнепермских отложений басс. рр. Дянышка, Тумара, Келе, Дулгалах уточнена биостратиграфическая последовательность представителей рода Jakutoproductus в З ападном Верхоянье. В нижней части слоев с J. rugosus эчийского горизонта нижней перми обособлен интервал, содержащий вид Jakutoproductus insignis, отчетливо прослеживающийся в регионе. Выделение в Западном Верхоянье слоев с J. insignis позволило уточнить внутрирегиональную корреляцию сакмарских отложений и пересмотреть сопоставление биостратиграфических шкал нижней части перми Верхояно-Охотского и Колымо-Омолонского регионов.

Research paper thumbnail of Graphic modeling of development of the ammonoid shell shape 1998 Rus

Кутыгин Р.В. Графическое моделирование развития формы раковины аммоноидей. Отечественная геология... more Кутыгин Р.В. Графическое моделирование развития формы раковины аммоноидей. Отечественная геология. 1998. № 6. С. 32-37. Kutygin R. V. Graficheskoje modelirovanie rakovin ammonoidej [The Graphic modeling of development of the am monoid shell shape].

Research paper thumbnail of Ontogeny of the Ammonoid Genus Dactylioceras from Northeastern Russia 2000

The ontogeny of the ammonoid genus Dactylioceras is studied for the first time and the stages in ... more The ontogeny of the ammonoid genus Dactylioceras is studied for the first time and the stages in the ontogenetic development of their ornament, shell shape, and suture are shown. The taxonomic significance of the characters and the range of intraspecific variations is analyzed.

Research paper thumbnail of The Genus Dactylioceras (Ammonoidea) from Northeastern Russia 2000

The taxonomy of the genus Dactylioceras from Northeastern Russia is revised. Previous identificat... more The taxonomy of the genus Dactylioceras from Northeastern Russia is revised. Previous identifications of D. athleticum from the Toarcian of Siberia were misinterpreted. Hence, this species cannot be used as an index zonal fossil for the Lower Toarcian of Siberia.

Research paper thumbnail of The shape of medial spiral in ammonoids 2009 Rus

Research paper thumbnail of Methods for Studying Ammonoid Shell Shape 2006

Research paper thumbnail of Shell Shapes of Permian Ammonoids from Northeastern Russia

A new classification of the planispiral ammonoid shells including 35 major conch types is propose... more A new classification of the planispiral ammonoid shells including 35 major conch types is proposed. The ontogenetic changes in the conch shape of Permian ammonoids from Northeastern Russia are described.

Research paper thumbnail of Toarcian Zonal Standard of North-East Asia 2003 Rus

УДК 56 :551.762.13(571.5) (571.65) ББК 26.323 К54 Рецензенты: доктор геол.-минер. наук К.Е. Колод... more УДК 56 :551.762.13(571.5) (571.65) ББК 26.323 К54 Рецензенты: доктор геол.-минер. наук К.Е. Колодезников кандидаты геол.-минер. наук В.В. Баранов, В.П. Тарабукин Утверждено к печати ученым советом Института геологии алмаза и благородных металлов СО РАН Князев В.Г., Девятов В.П., Кутыгин Р.В., Никитенко Б.Л., Шурыгин Б.Н. Зональный стандарт тоарского яруса Северо-Востока Азии / Отв. ред. С.П. Ермакова. -Якутск: ЯФ Изд-ва СО РАН, 2003. -105 с.