scholarly journals End-Triassic mass extinction started by intrusive CAMP activity

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
J.H.F.L. Davies ◽  
A. Marzoli ◽  
H. Bertrand ◽  
N. Youbi ◽  
M. Ernesto ◽  
...  
Keyword(s):  
Mass Extinction ◽  
Camp Activity

scholarly journals Two-pronged kill mechanism at the end-Triassic mass extinction

Geology ◽  
2022 ◽  
Author(s):  
Calum P. Fox ◽  
Jessica H. Whiteside ◽  
Paul E. Olsen ◽  
Xingqian Cui ◽  
Roger E. Summons ◽  
...  
Keyword(s):  
Surface Waters ◽  
Mass Extinction ◽  
Global Scale ◽  
Central Atlantic Magmatic Province ◽  
Igneous Provinces ◽  
Extinction Event ◽  
Isotope Distributions ◽  
Permian Mass Extinction ◽  
Central Atlantic ◽  
Camp Activity

High-resolution biomarker and compound-specific isotope distributions coupled with the degradation of calcareous fossil remnants reveal that intensive euxinia and decalcification (acidification) driven by Central Atlantic magmatic province (CAMP) activity formed a two-pronged kill mechanism at the end-Triassic mass extinction. In a newly proposed extinction interval for the basal Blue Lias Formation (Bristol Channel Basin, UK), biomarker distributions reveal an episode of persistent photic zone euxinia (PZE) that extended further upward into the surface waters. In the same interval, shelly taxa almost completely disappear. Beginning in the basal paper shales of the Blue Lias Formation, a Lilliput assemblage is preserved consisting of only rare calcitic oysters (Liostrea) and ghost fossils of decalcified aragonitic bivalves. The stressors of PZE and decalcification parsimoniously explain the extinction event and inform possible combined causes of other biotic crises linked to emplacement of large igneous provinces, notably the end-Permian mass extinction, when PZE occurred on a broad and perhaps global scale.

Coal-fired trigger of mass extinction

Nature ◽  
2011 ◽  
Author(s):  
Gayathri Vaidyanathan
Keyword(s):  
Mass Extinction

An Expert Ranked List of Pro-nature Conservation Behaviours for Public Use

2019 ◽  
Author(s):  
Lea Barbett ◽  
Edward Stupple ◽  
Michael Sweet ◽  
Miles Richardson
Keyword(s):  
Nature Conservation ◽  
General Population ◽  
Mass Extinction ◽  
Negative Impact ◽  
Ecological Impact ◽  
Human Action ◽  
Short Paper ◽  
The Public ◽  
The Uk ◽  
Ranked List

The planet is facing an anthropogenic mass extinction of wildlife, which will have a grave impact on the environment and humans. Widespread human action is needed to minimize the negative impact of humans on biodiversity and support the restoration of wildlife. In order to find effective ways to promote pro-nature conservation behaviours to the general population, there is a need to provide a list of behaviours which will have worthwhile ecological impact and are worth encouraging. In a novel collaboration between psychologists and ecologists, 70 experts from practical and academic conservation backgrounds were asked to review and rate 48 conservation related behaviours. According to their judgement, this short paper presents a ranked list of pro-nature conservation behaviours for the public in the UK and similar landscapes. This includes behaviours people can engage in in their homes, their gardens, on their land, and in their roles as citizens.

The K/T Boundary of Gams (Eastern Alps, Austria) and the Nature of Terminal Cretaceous Mass Extinction

2009 ◽  
Author(s):  
Andrei Grachev ◽  
H. A. Kollmann ◽  
O. A. Korchagin ◽  
D. M. Pechersky ◽  
V. A. Tsel'movich
Keyword(s):  
Mass Extinction ◽  
Eastern Alps

INTRINSIC AND EXTRINSIC ECOLOGICAL DETERMINANTS OF EXTINCTION AT THE END-TRIASSIC MASS EXTINCTION

2016 ◽  
Author(s):  
Alexander M. Dunhill ◽  
◽  
William J. Foster ◽  
James Sciberras ◽  
Richard J. Twitchett
Keyword(s):  
Mass Extinction
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