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/sci/ - Science & Math


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[ERROR] No.3707956 [Reply] [Original]

What does /sci/ think is the explanation for the Earth no longer extruding flood basalt?

Colombia river basalt are almost 6000 feet thick at some points. We cant even comprehend the kind of devastation that would cause if it happened today.

Or does /sci/ think its going to happen again, and its the natural disaster we should be really afraid of.

>> No.3707965

Just to clarify i know it didn't become 6000 feet all at once, but the theory is it was a continuous outflow of lava that built up to 6000 feet.

>> No.3708007

I think we're living in a geologically quiescent period.

Also, IIRC, a flood basalt is usually a multi-kiloyear or even multi-megayear event. So if one started now, there'd be plenty of time for evacuation and making plans for the long-term devastation.

>> No.3708031

Since I live in the Columbia Basin area, I am just fine with there not being another major flooding of basalt, thanks.

>> No.3708032

>>3708007
It'd be cool as hell, though.

>> No.3708036

>>3708007

True it happens over thousands sometimes millions of years, but in order for it to get to a mile in thickness over basically something the size of Oregon can you imagine how much lava would have to be pouring out at any given time?

>> No.3708045

>>3708031

Eh i do too, but im more worried about the cascadia subduction zone that is due to go off. Though, maybe i should be more worried about one of these volcanic whatever-the-fuck-they-are going off.

>> No.3708056

>>3708032
Fun pun. If it was meant as such.
Made my tired self chuckle.

Living in Finland with it's ~500 megayear bedrock, I don't have much personal fear of magmatic events.

Still, I seem to recall that VEI 8 eruptions are more common than flood basalts, with the last ones having happened around fifty kiloyears ago.

>> No.3708074

>>3708056

There is some evidence to super volcanos, such as Yellowstone, starting their eruptions with flood basalts. Also someone care to tell my why my spell check doesn't think volcano or basalt can be plural?

>> No.3708076
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[ERROR]

>>3708056
>Made my tired self chuckle.
Glad to be of service! I thought it was pretty pedestrian myself, but I'm happy you enjoyed it.
>It's probably just the sleep deprivation, you know

>> No.3708088

>>3708074
My spell check says "volcanoes" and "basalts" are legit words. But then I use a superior browser: Opera.

Also, >starting their eruptions with flood basalts
Really?
Huh. Thanks for the info.

>>3708076
Oh I know. But I'm happy with whatever makes me smile when working five hours overtime.

>> No.3708090

>>3708074
Your spell check is fucking retarded, like all of them.
I bet most only have a third of the words in the english language.
Sesquipedalian
bibliophile
perambulation
sclerotic
proprietous
schizothemia
None of these are in my spell checker's dictionary.

>> No.3708101

>>3708090
I'm missing:
Sesquipedalian
proprietous
schizothemia

But I had the other three.

>> No.3708109

>>3708101
What browser are you using?

>> No.3708114

>>3708088

Its not a conclusive theory just yet. The Theory is that when a hotspot (ok it doesn't think thats a word ethier sigh at chrome) first forms it extrudes a large igneous province, most cases flood basalt.

This is theorized to be from the magma plume that causes the hotspots to emerge in the first place. Like in a lava lamp there's a large head on top of the plumes that rise to the surface. Then followed by the tail of the plume that acts as the hotspot for the next we-dont-know-how-long

>> No.3708120

>volcanology and text recognition
Reminds me of the old 3D-text screensaver in Win98.
If you put volcano (or some variation), it would instead show names of famous volcanoes from all over the world.

>> No.3708139

>>3708120
heh, I remember that.

>> No.3708140

>>3708109
Opera. Has been my main browser for some 13 years now.