Evidence of extinction event due to solar flares

Originally posted by Phage
Interesting. Couldn't humans be considered a type of mega-fauna? I wonder why we weren't wiped out by the radiation.

Any extinctions in Africa? Asia at the same time?

Maybe it just burned most of the plant life that the fauna eat and therefore they died also, and could explain us still being here because there wouldn't have been as much radiation as we think.

reply to post by colbyforce


According to Professor G. Robert Brakenridge, of the Community Surface Dynamics Modeling System at the University of Colorado at Boulder, the extinction could also have been caused by a supernova: Core-collapse supernovae and the Younger Dryas/terminal Rancholabrean extinctions

Either way, I'm not sure there's much we can do about it.

Personally, I think the extinction event was caused by man's first megafauna McDonald's chain. We never learn.

Originally posted by IceFlower
reply to post by Devino

 

With all due respect, I think you need to read the OP again, only with a critical, logical mind.

The OP did indeed state it was his/her belief that he/she has found evidence the coming solar storms would be "much worse".

OMG people. I found some info and I posted it here because I thought it was interesting and was wondering what worst case possibilities could be. I didn't say anyone would be dying soon, or attempting to be sensational or fearmonger. Get a grip. If you don't like the thread, there are plenty of others. Bye!

reply to post by IceFlower

The OP did indeed state it was his/her belief that he/she has found evidence the coming solar storms would be "much worse".

Well that is not what I discerned from the OP. I discerned that they have found evidence that solar storms have been much worse in history which has yet to be determined. I guess I am not one to fall for extinction level event theories so I read into it a little differently. Perhaps you are correct and I am wrong but regardless this is an interesting subject.

I know a lot of you folks are going to love this, but I want to post this scripture.

Just put it in your hat, so to speak....I think it is highly relevant to the subject matter at hand.

But then again, what do I know

Sorry, wrong link........Try this one......Verses eight and nine.

nasb.scripturetext.com...

reply to post by colbyforce


If it's true, we don't have to worry for now that an event like that will happen any time soon.

Several studies indicate that toward the end of the ice age the Sun was far more active than it is today. Zook et al. (1977) studied solar flare tracks etched in lunar rock micrometeorite craters and concluded that around 16 kyrs ago the average solar cosmic ray intensity was 50 times higher than at present, declining to 15 times higher by 12 kyrs BP, and eventually reaching the present activity level. Elevated3 radiocarbon concentrations found in the surfaces of lunar rocks also indicate that for a period of 5000 years prior to 12 kyrs BP the Moon was being exposed to a solar cosmic ray flux averaging 30 times higher than the present flux

I haven't read the paper yet, but when I saw the number 13,000, the hair kinda stood up on my neck, because I was recently reading about something that also uses that number. I'm not trying to tie the two together mind you, but it is an interesting connection if the other something has any truth to it. That something is the Black Knight satellite, which is said to be in orbit around the Earth. Discovered I believe in the 20's by amateur radio operators, but later in the 50's I think is said to have transmitted a star-map that showed the stars' pattern 13,000 years ago. I don't know if the satellite has been debunked. Interesting to say the least...

Interesting paper i must say.

The magnitude of the ground level radiation exposure that animals would have received would depend on the hardness of the SPE's spectrum. Harder spectrum SPEs have greater fluences of high energy cosmic rays, e.g., > 500 Mev, and are capable of deeper penetration through the atmosphere to deliver a higher ground level radiation dose

The February 1956 SPE, which had a relatively hard spectrum.
Foelsche (1974) estimates as an upper limit that this SPE would have delivered a radiation dose of 0.7 rads/hr at an altitude of 14 kilometers.
This is equivalent to about 1.2 rem/hr or 12 milli Sieverts per hour.
His radiation dose vs. altitude plot projects a lower value at ground level of about 0.5 mSv/hr, the dose reduction being due to the shielding effects of the atmosphere.

If it had a comparable spectral hardness, the 12,837 years BP SPE would have delivered a dose rate about 125 fold larger than this, causing animals at sea level to accumulate as much as 3 Sv over a 50 hour period.
Here we assume that the period of elevated cosmic ray exposure continued for at
least two days as it did during the 1859 Carrington event.

Short duration exposure to radiation doses exceeding 3.5 Sv are known to be lethal to humans (Epelman and Hamilton, 2006) with 100% fatalities (LD-100) occurring at around 4 to 6 Sv. LD-100 for most large mammals spans the range from 3 to 8 Sv.

The 12,837 ± 10 cal yrs BP SPE could have delivered a radiation dose of substantially over 6 Sv which would have been lethal to large Pleistocene megafauna that were not sheltered from exposure. This radiation hazard therefore could have been a major cause of the Pleistocene mass extinction.

...
www.starburstfound.org...
Health threat from cosmic rays

Radiation doses in excess of 6 Sv are projected if the associated solar storm main phase decrease had induced a collapse of the magnetosphere

Collapse of the magnetosphere?
Phage,
do you have or know something on this?

reply to post by intergalactic fire

Nope.
It's just something he starts talking about happening with no explanation of how such a thing could occur. He makes reference to a "1% main phase decrease in geomagnetic field intensity (Dessler and Parker 1959)." It seems like an odd reference because the paper referenced does not seem to have much to do with SPEs. Furthermore he makes a big deal of the February 1956 SPE, which does not seem to have been particularly intense.

www.agu.org...
articles.adsabs.harvard.edu...

Originally posted by radpetey
I know a lot of you folks are going to love this, but I want to post this scripture.

Just put it in your hat, so to speak....I think it is highly relevant to the subject matter at hand.

But then again, what do I know

Sorry, wrong link........Try this one......Verses eight and nine.

nasb.scripturetext.com...

oh, wow, "the 4th angel poured his bowl out onto the sun, men were scorched with fierce heat"

that does sound like some (4th?) object being poured into the sun and the reaction scorching men with fierce heat (CME's?).

what about the asteroids? heres a yt quoting Scriptures..