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Post by 1dave on Jun 3, 2019 8:11:28 GMT -5
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Post by Rockindad on Jun 3, 2019 20:06:29 GMT -5
Interesting little video. Nice to see Yellowstone, one of my favorite places I've ever been. Really hope to get back some day.
Al
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Post by mohs on Sept 9, 2021 10:23:03 GMT -5
Hi Guys just wanted to remark that the other day I went deep in the archives to find the discussion about past volcanic extinction events. had no luck w/ finding the specific information But I did come across mention of the 75,000-year-old Indonesian Volcanic Toba Catastrophe Event  en.wikipedia.org/wiki/Toba_catastrophe_theoryThrough further research I uncovered The remnant of what I was searching for The 500 million years old extinction event of Siberian Trapps ! The Siberian Traps (Russian: Сибирские траппы, Sibirskiye trappy) is a large region of volcanic rock, known as a large igneous province, in Siberia, Russia. The massive eruptive event that formed the traps is one of the largest known volcanic events in the last 500 million years. The eruptions continued for roughly two million years and spanned the Permian–Triassic boundary, or P–T boundary, which occurred around 251.9 million years ago. The Siberian Traps are believed to be the primary cause of the Permian–Triassic extinction event, the most severe extinction event in the geologic record.[1][2] Large volumes of basaltic lava covered a large expanse of Siberia in a flood basalt event. Today, the area is covered by about 7 million km2 (3 million sq mi) of basaltic rock, with a volume of around 4 million km3 (1 million cu mi).[3] en.wikipedia.org/wiki/Siberian_Traps so thanks for all the support in this endeavor |
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Post by mohs on Sept 9, 2021 10:42:29 GMT -5
No No No ! It was the Deccan Traps  I was really searching for Wiki linkage led me to it stay tuned in a couple years I should have an analysis...mostly |
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Post by HankRocks on Sept 9, 2021 10:58:28 GMT -5
No No No ! It was the Deccan Traps I was really searching for Wiki linkage led me to it stay tuned in a couple years I should have an analysis...mostly I have read some theories that the extinction caused by the Chicxulub Impact 66.043 +- .011 ma was just part of the extinction story. The Deccan Traps eruptions had already severely stressed animal life on the planet and that the Yucatan impact finished the job. |
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Post by mohs on Sept 9, 2021 13:34:34 GMT -5
Right Hank ! In that thread - I was looking for Chixculub was mentioned Matter of fact Chixculab may have been the main subject Maybe 1dave recall if he made a subject post about that? As a side note; The Superstition Mountains Wilderness eroded remains are the results of ‘Super' Volcano   what I think this shot is looking into a ancient caldera hope all rolling well !!! |
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Post by 1dave on Sept 11, 2021 22:28:05 GMT -5
What caused extinctions? This is a huge geologic argument!  Everyone is specialist threatened. It was only disease, lack of oxygen, flooding, earth quakes, volcanic eruptions, impacts, hiccups, . . . Personally I believe it was all of the above! Impacts initiated the cascade of events including flood volcanics. The Chicxulub Impact 66 MYA was probably only a small part of the IMPACTS! I THINK THERE IS A GREAT POSSIBILITY THE ASTEROID BROKE UP AND MANY HUGE CHUNKS HIT EARTH NEAR THE SAME TIME! |
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Post by mohs on Sept 12, 2021 19:19:42 GMT -5
What the latest research is leading to
is that Chixtalbub impact,
through seismic quake waves
furthered a secondary lava eruptions in the traps.
In example... the Deccan Traps lava flows were subsiding.
& the impact initiated another more violent flow of eruptions
The original Deccan Traps eruption was environmentally unhealthy event.
If by it self could have been a major extinction event ?
I suppose, we’ll never know
Certainly the 2 events on top of one another was a dino coup de grâs
Which cleared the way, and created a niche,
for a much more kinder gentler specie.
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Nov 14, 2024 18:17:57 GMT -5
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