Was the volcanic eruption responsible for the extinction of dinosaurs or asteroids?

During the last five hundred million years there were many phenomena of extinction took place. Still, there was five major extinction happened on earth.

These extinctions were taken place due to environmental change drives by the massive eruption of the volcano. The latest extinction took place about sixty-six million years ago (At the end of the Cretaceous).

Was it an asteroid or volcanic eruption that wiped out the dinosaurs from the earth’s planet?

This is a long-debated topic among researchers around the globe. Perhaps, researchers agreed on one point that this mass extinction (End of Cretaceous) happened due to climate change and the emission of Co2.
A researcher’s team from the CITY UNIVERSITY OF NEWYORK has tried to build the relationship between the emissions of Co2 from DECCAN TRAP (Volcanic eruption) and the extinction of dinosaurs. They analyzed the timing of volcanic eruption (Deccan Traps) and the amount of Co2 concerning mass extinction (End of Cretaceous).

According to one of the researchers from the researcher’s team Andres Hernandez Nava, “Our team analysed the amount of emission of CO2 from DECCAN TRAPS regarding with global warning, and we determine that CO2 from volcanic eruption wouldn’t have caused this scale of global warming”.

The CITY UNIVERSITY OF NEWYORK and Environmental science program have found new findings related to the event, “while determining the Co2 amount that has frozen under the surface of the earth, instead of erupting, we have determined that the DECCAN TRAPS could have released enough Co2 to explain this event.

The researcher team has been used lasers and beams of ions to calculate the Co2 amount from the tiny droplets of frozen magma trapped inside DECCAN TRAPS crystals dated end-Cretaceous.
The researcher also measured the amount of BARIUM AD NIOBIUM, which act as proxies for how much Co2 the magma started out with. They have also done the modeling of climate during that time (End-Cretaceous) and tried to identify the impact of the release of Co2 emission from DECCAN TRAPS on surface temperature.

Andres Hernandez Nava, Benjamin A. Black, Sally A. Gibson, Robert J. Bodnar, Paul R. Renne, Loÿc Vanderkluysen. Reconciling early Deccan Traps CO2 outgassing and pre-KPB global climateProceedings of the National Academy of Sciences, 2021; 118 (14): e2007797118 DOI: 10.1073/pnas.2007797118

4 thoughts on “Was the volcanic eruption responsible for the extinction of dinosaurs or asteroids?

  1. I once learnt that the asteroidal impact on earth was instrumental to the extinction of some species of dinosaur—particularly the herbivorous species (e.g. aetosaur). The study claimed that the impact was not favourable on the dinosaurs because it destroyed all plants (which is their nutritional source).

    It will be so great if we put into consideration the fact that not all dinosaurs behaved, lived, fed, etc. the same way; hence, the likelihood of them not being wiped out by a similar geologic event.

    We know—from the geologic time scale—that the earliest appearance of these dinosaurs was during the jurassic time. They started multiplying and attain the peak of abundance on earth during the triassic time and ran into extinction during the cretaceous—all happened during a particular era (mesozoic).

    If we put into consideration the fact that these dinosaurs are of different species, then it would not be wrong to say suggestively that “while some new species were evolving, some old species were becoming extinct” due to a possible environmental or climatic/weather inversion which would be traceable to palaeoclimatic, palaeoecologic, palaeoenvironmental studies.

    Thanks.

    Like

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