Rapid Eruption of the Siberian Traps Flood Basalts at the Permo-Triassic Boundary

  title={Rapid Eruption of the Siberian Traps Flood Basalts at the Permo-Triassic Boundary},
  author={Paul R. Renne and ASISH R. BASU},
  pages={176 - 179}
  • P. Renne, ASISH R. BASU
  • Published 12 July 1991
  • Geology, Medicine
  • Science
The Siberian Traps represent one of the most voluminous flood basalt provinces on Earth. Laser-heating 40Ar/39Ar data indicate that the bulk of these basalts was erupted over an extremely short time interval (900,000 � 800,000 years) beginning at about 248 million years ago at mean eruption rates of greater than 1.3 cubic kilometers per year. Such rates are consistent with a mantle plume origin. Magmatism was not associated with significant lithospheric rifting; thus, mantle decompression… Expand
Synchrony and Causal Relations Between Permian-Triassic Boundary Crises and Siberian Flood Volcanism
Analysis of 40Ar/39Ar data from two tuffs in southern China yielded a date comparable to the inception of main stage Siberian flood volcanism at 250.0 � 0.2 million years ago for the Permian-Triassic boundary. Expand
40Ar/39Ar Dates from the West Siberian Basin: Siberian Flood Basalt Province Doubled
The age and geochemical data confirm that the West Siberian Basin basalts are part of the Siberian Traps and at least double the confirmed area of the volcanic province as a whole, which strengthens the link between the volcanism and the end-Permian mass extinction. Expand
The Age of Paran� Flood Volcanism, Rifting of Gondwanaland, and the Jurassic-Cretaceous Boundary
The Paran�-Etendeka flood volcanic event produced ∼1.5 x 106 cubic kilometers of volcanic rocks, ranging from basalts to rhyolites, before the separation of South America and Africa during theExpand
Synchronism of the Siberian Traps and the Permian-Triassic Boundary
The results are consistent with the hypothesis that the P-Tr extinction was caused by the Siberian basaltic flood volcanism and may have been caused by a combination of acid rain and global cooling as well as rapid and extreme changes in sea level resulting from expansion of the polar ice cap. Expand
40Ar–39Ar age of Siberian basaltic volcanism
Abstract Five of six samples representing the entire stratigraphic sequence (∼3700 m thick) of basaltic flows in the Noril'sk section in the northwestern part of Siberian flood basalt province,Expand
A minimum UPb age for Siberian flood-basalt volcanism
Abstract Establishing an accurate and precise age for Siberian flood-basalt volcanism is of great importance in evaluating causes for the unequaled mass extinction of flora and fauna at theExpand
The Siberian Traps and the End-Permian mass extinction: a critical review
The association between the Siberian Traps, the largest continental flood basalt province, and the largest-known mass extinction event at the end of the Permian period, has been strengthened byExpand
Age of the Emeishan flood magmatism and relations to Permian–Triassic boundary events
The Permian^Triassic (P^T) mass extinction, the greatest biological mortality event in the Earth’s history, was probably caused by dramatic and global forcing mechanisms such as the Siberian floodExpand
High-3He Plume Origin and Temporal-Spatial Evolution of the Siberian Flood Basalts
Geochemical data from the 250-million-year-old volcanic rocks higher up in the sequence indicate interaction of this high-3He SFBP plume with a suboceanic-type upper mantle beneath Siberia. Expand
Rapid eruption of Siberian flood-volcanic rocks and evidence for coincidence with the Permian–Triassic boundary and mass extinction at 251 Ma
The Siberian flood-volcanic event is the most voluminous and explosive, continental, volcanic event known in the Phanerozoic record. U^Pb perovskite and zircon ages were obtained for lavas of theExpand


Flood Basalt Volcanism During the Past 250 Million Years
There were 11 distinct episodes of major continental flood basalt volcanism during the past 250 million years, and the initiation dates of the episodes are close to the estimated dates of mass extinctions of marine organisms. Expand
Deccan flood basalts and the Cretaceous/Tertiary boundary
Courtillot et al.1 have presented palaeomagnetic, palaeontological and K–Ar data for the Deccan flood basalts which suggest that > 106 km3 of basalt may have been erupted in < 1 Myr, mostly in aExpand
Paleontological view of the ages of the Deccan Traps, the Cretaceous/Tertiary boundary, and the India-Asia collision
Volcanism in the Deccan Traps of India occurred over at most three magnetic chrons, centered on a main reversed chron. Paleontological data indicate that this reversed chron must coincide with 29R,Expand
40Ar/39 dating of the Siberian Traps, USSR: Evaluation of the ages of the two major extinction events relative to episodes of flood-basalt volcanism in the USSR and the Deccan Traps, India
40Ar/39Ar incremental-heating studies have been carried out on three whole-rock specimens from the Siberian Traps. A basalt lava flow from the lowermost horizon yields an age of 238.4 ±1.4 Ma (1σExpand
Rapid eruption of the Deccan flood basalts at the Cretaceous/Tertiary boundary
The accumulation of flood basalts of the Deccan Traps, western India, is one of the most remarkable volcanic provinces on Earth in sheer extent and volume. These rocks are akin in composition andExpand
Magmatism at rift zones: The generation of volcanic continental margins and flood basalts
When continents rift to form new ocean basins, the rifting is sometimes accompanied by massive igneous activity. We show that the production of magmatically active rifted margins and the effusion ofExpand
Deccan flood basalts at the Cretaceous/Tertiary boundary?
Abstract Joint consideration of new paleomagnetic, paleontological and geochronological data from the Deccan continental flood basalts in India and critical discussion of earlier results lead us toExpand
Neodymium isotopes in flood basalts from the Siberian Platform and inferences about their mantle sources.
  • D. DePaolo, G. Wasserburg
  • Geology, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1979
The initial isotopic compositions of Nd and Sr in basalts from the Central Siberian Plateau and other major continental flood basalts are reported, providing fundamental constraints on models of mantle structure and dynamics. Expand
On the genesis of trapp magmatism of the Siberian platform
Abstract Mathematical modelling of thermal thickening of the lithosphere with time indicates that the thickness of the lithosphere beneath the Siberian platform in the late Permian and Triassic, whenExpand
The Cretaceous-Tertiary Transition
It seems more likely that an explanation for the changes during the Cretaceous-Tertiary transition will come from continued examination of the great variety of terrestrial events that took place at that time, including extensive volcanism, major regression of the sea from the land, geochemical changes, and paleoclimatic and paleoceanographic changes. Expand