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Intense and widespread seismicity during the end-Triassic mass extinction due to emplacement of a large igneous province

Lindstrom, Sofie; Pedersen, Gunver Krarup; van de Schootbrugge, Bas; Hansen, Katrine Hovedskov; Kuhlmann, Natascha; Thein, Jean; Johansson, Leif LU ; Petersen, Henrik Ingermann; Alwmark, Carl LU and Dybkjaer, Karen, et al. (2015) In Geology 43(5). p.387-390
Abstract
Multiple levels of earthquake-induced soft-sediment deformations (seismites) are concentrated in the end-Triassic mass extinction interval across Europe. The repetitive nature of the seismites rules out an origin by an extraterrestrial impact. Instead, this intense seismic activity is linked to the formation of the Central Atlantic magmatic province (CAMP). By the earliest Jurassic the seismic activity had ceased, while extrusive volcanism still continued and biotic recovery was on its way. This suggests that magmatic intrusions into sedimentary strata during early stages of CAMP formation caused emission of gases (SO2, halocarbons, polycyclic aromatic hydrocarbons) that may have played a major part in the biotic crisis.
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Contribution to journal
publication status
published
subject
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Geology
volume
43
issue
5
pages
387 - 390
publisher
Geological Society of America
external identifiers
  • wos:000357619400025
  • scopus:84929471500
ISSN
0091-7613
DOI
10.1130/G36444.1
language
English
LU publication?
yes
id
06617715-2cfc-471a-9ffa-cd7cd3a729c5 (old id 7779663)
date added to LUP
2015-09-18 16:00:08
date last changed
2017-07-30 03:56:26
@article{06617715-2cfc-471a-9ffa-cd7cd3a729c5,
  abstract     = {Multiple levels of earthquake-induced soft-sediment deformations (seismites) are concentrated in the end-Triassic mass extinction interval across Europe. The repetitive nature of the seismites rules out an origin by an extraterrestrial impact. Instead, this intense seismic activity is linked to the formation of the Central Atlantic magmatic province (CAMP). By the earliest Jurassic the seismic activity had ceased, while extrusive volcanism still continued and biotic recovery was on its way. This suggests that magmatic intrusions into sedimentary strata during early stages of CAMP formation caused emission of gases (SO2, halocarbons, polycyclic aromatic hydrocarbons) that may have played a major part in the biotic crisis.},
  author       = {Lindstrom, Sofie and Pedersen, Gunver Krarup and van de Schootbrugge, Bas and Hansen, Katrine Hovedskov and Kuhlmann, Natascha and Thein, Jean and Johansson, Leif and Petersen, Henrik Ingermann and Alwmark, Carl and Dybkjaer, Karen and Weibel, Rikke and Erlstrom, Mikael and Nielsen, Lars Henrik and Oschmann, Wolfgang and Tegner, Christian},
  issn         = {0091-7613},
  language     = {eng},
  number       = {5},
  pages        = {387--390},
  publisher    = {Geological Society of America},
  series       = {Geology},
  title        = {Intense and widespread seismicity during the end-Triassic mass extinction due to emplacement of a large igneous province},
  url          = {http://dx.doi.org/10.1130/G36444.1},
  volume       = {43},
  year         = {2015},
}