КФУ. Карточка публикации. Five million years of high atmospheric CO2 in the aftermath of the Permian-Triassic mass extinction

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FIVE MILLION YEARS OF HIGH ATMOSPHERIC CO2 IN THE AFTERMATH OF THE PERMIAN-TRIASSIC MASS EXTINCTION

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2022

Язык

английский

Авторы, сотрудники КФУ

Муравьев Федор Александрович, автор

Силантьев Владимир Владимирович, автор

Другие авторы

Joachimski Michael , автор

Библиографическое описание на языке оригинала

Michael M. Joachimski, Johann Müller, Timothy M. Gallagher, Gregor Mathes, Daoliang L. Chu, Fedor Mouraviev, Vladimir Silantiev, Yadong D. Sun and Jinnan N. Tong, 2022. Five million years of high atmospheric CO2 in the aftermath of the Permian-Triassic mass extinction // Geology, Vol. 50, Is. 6, PP. 650-654

Аннотация

The end-Permian mass extinction, the largest biological crisis in Earth history, is currently understood in the context of Siberian Traps volcanism introducing large quantities of greenhouse gases to the atmosphere, culminating in the Early Triassic hothouse. In our study, the late Permian and Early Triassic atmospheric CO2 history was reconstructed by applying the paleosol pCO2 barometer. Atmospheric pCO2 shows an approximate 4× increase from mean concentrations of 412–919 ppmv in the late Permian (Changhsingian) to maximum levels between 2181 and 2610 ppmv in the Early Triassic (late Griesbachian). Mean CO2 estimates for the later Early Triassic are between 1261–1936 ppmv (Dienerian) and 1063–1757 ppmv (Spathian). Significantly lower concentrations ranging from 343 to 634 ppmv are reconstructed for the latest Early to Middle Triassic (Anisian). The 5 m.y. episode of elevated pCO2 suggests that negative feedback mechanisms such as silicate weathering were not effective enough to reduce atmospheric pCO2 to precrisis levels and that marine authigenic clay formation (i.e., reverse weathering) may have been an important component of the global carbon cycle keeping atmospheric pCO2 at elevated levels.

Ключевые слова

Atmospheric CO2, Permian, Triassic, paleosol, greenhouse

Название журнала

GEOLOGY

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https://repository.kpfu.ru/?p_id=265478

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Муравьев Федор Александрович	ru_RU
dc.contributor.author	Силантьев Владимир Владимирович	ru_RU
dc.contributor.author	Joachimski Michael	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	Michael M. Joachimski, Johann Müller, Timothy M. Gallagher, Gregor Mathes, Daoliang L. Chu, Fedor Mouraviev, Vladimir Silantiev, Yadong D. Sun and Jinnan N. Tong, 2022. Five million years of high atmospheric CO2 in the aftermath of the Permian-Triassic mass extinction // Geology, Vol. 50, Is. 6, PP. 650-654	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=265478	ru_RU
dc.description.abstract	GEOLOGY	ru_RU
dc.description.abstract	The end-Permian mass extinction, the largest biological crisis in Earth history, is currently understood in the context of Siberian Traps volcanism introducing large quantities of greenhouse gases to the atmosphere, culminating in the Early Triassic hothouse. In our study, the late Permian and Early Triassic atmospheric CO2 history was reconstructed by applying the paleosol pCO2 barometer. Atmospheric pCO2 shows an approximate 4× increase from mean concentrations of 412–919 ppmv in the late Permian (Changhsingian) to maximum levels between 2181 and 2610 ppmv in the Early Triassic (late Griesbachian). Mean CO2 estimates for the later Early Triassic are between 1261–1936 ppmv (Dienerian) and 1063–1757 ppmv (Spathian). Significantly lower concentrations ranging from 343 to 634 ppmv are reconstructed for the latest Early to Middle Triassic (Anisian). The 5 m.y. episode of elevated pCO2 suggests that negative feedback mechanisms such as silicate weathering were not effective enough to reduce atmospheric pCO2 to precrisis levels and that marine authigenic clay formation (i.e., reverse weathering) may have been an important component of the global carbon cycle keeping atmospheric pCO2 at elevated levels.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Atmospheric CO2	ru_RU
dc.subject	Permian	ru_RU
dc.subject	Triassic	ru_RU
dc.subject	paleosol	ru_RU
dc.subject	greenhouse	ru_RU
dc.title	Five million years of high atmospheric CO2 in the aftermath of the Permian-Triassic mass extinction	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU