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originally posted by: Blue Shift
It's also kind of curious that the mid-5000s BCE is when many of the older agrarian civilizations seemed to pop up. Strange things happening with the sun stimulating an interest in religion and larger societies?
originally posted by: Blue Shift
It's also kind of curious that the mid-5000s BCE is when many of the older agrarian civilizations seemed to pop up. Strange things happening with the sun stimulating an interest in religion and larger societies?
originally posted by: the2ofusr1
a reply to: djz3ro
Go to the 8 min mark of the vid
originally posted by: theantediluvian
Interesting stuff to ponder. And before I forget, here's the link to the paper.
originally posted by: waftist
I wonder if IAMTAT was onto something with the idea of solar radiation altering human genes during that time. Is there a way to examine genetic history from that far back to see if any anomalies arose around that time?
originally posted by: Blue Shift
originally posted by: waftist
I wonder if IAMTAT was onto something with the idea of solar radiation altering human genes during that time. Is there a way to examine genetic history from that far back to see if any anomalies arose around that time?
It has also been postulated that around that time human brains saw an increase in the size and complexity of the corpus callosum in the human brain. It supposedly strengthened the link between the two hemispheres, resulting in the "voice of God" going away in all but a few individuals, who were then seen as prophets.
originally posted by: smurfy
originally posted by: theantediluvian
Interesting stuff to ponder. And before I forget, here's the link to the paper.
Thing is, was this a triggered extraordinary event or something that occured over that narrow band of time. the 5480bc figure, isn't that close to the half-life of 14C? Then was there something in given history that would be a pointer as IAMTAT suggested? I am always out on dating samples, although it seem the best example for 14C dating appears to be used in the tree rings, although the ordinance of samples might also be a help. But I ain't no scientist, and there were/are reccomendations for other methods of dating, although they might not need to apply here, but again perhaps to make correlations in other parts of the world say.
Abstract:Mineral magnetic, organic carbon and pollen studies of two varved Holocene lake-sediment sequences in the boreal forest of northern Sweden indicate that significant environmental changes took place between c. 6000 and 5700 bc. This interval is characterized by an increase in mineral-matter accumulation, which is a proxy for winter-snow accumulation, and a statistically significant decrease in total pollen influx (predominantly Pinus, Betula and Alnus), which may reflect lower spring and summer temperatures and increased frost frequency. Notable increases in the influx of deciduous tree species (including Quercus and Corylus) suggest a rapid change to warmer conditions between 5700 and 5600 bc. Given dating errors associa- ted with the varve chronologies and the Greenland ice-core timescales, the cold interval can be considered to reflect a regional (possibly global) climatic cooling, which is often referred to as the ‘8.2 kyr BP cooling event’. However, the younger age of the cold event in northern Sweden does not support the hypothesis of forcing by the sudden drainage of Laurentide glacial lakes into the North Atlantic, unless a minimal 300-year delay in ocean-atmospheric coupling is accepted. The data contribute to a complex picture of early-Holocene environmental change, in response to deglaciation of the Northern Hemisphere.
originally posted by: Blue Shift
originally posted by: waftist
I wonder if IAMTAT was onto something with the idea of solar radiation altering human genes during that time. Is there a way to examine genetic history from that far back to see if any anomalies arose around that time?
It has also been postulated that around that time human brains saw an increase in the size and complexity of the corpus callosum in the human brain. It supposedly strengthened the link between the two hemispheres, resulting in the "voice of God" going away in all but a few individuals, who were then seen as prophets.
originally posted by: TEOTWAWKIAIFF
Google books: Eruptions that Shook the World
Author Clive Oppenheimer
Publisher Cambridge University Press, 2011
(url is too long!) P. 356
That date, 5480 BCE, is also one date for the Kikai-Akahoya eruption in Japan (also have seen 4500 BCE, so it is in that range. I rather trust CUP). On the eruption scale it weighed in 7.2 M.
Not saying the sun-earth is one-to-one connected (could be, not point of the post). Just saying that the time period had a couple rather large events happening at the same time.
Wonder else was going on around the globe at that time??
originally posted by: CynConcepts
originally posted by: smurfy
originally posted by: theantediluvian
Interesting stuff to ponder. And before I forget, here's the link to the paper.
Thing is, was this a triggered extraordinary event or something that occured over that narrow band of time. the 5480bc figure, isn't that close to the half-life of 14C? Then was there something in given history that would be a pointer as IAMTAT suggested? I am always out on dating samples, although it seem the best example for 14C dating appears to be used in the tree rings, although the ordinance of samples might also be a help. But I ain't no scientist, and there were/are reccomendations for other methods of dating, although they might not need to apply here, but again perhaps to make correlations in other parts of the world say.
Your question sent me down another rabbit hole and I am not scientific enough to truly understand the charts and data sets in the provided PDF on Glacial Lake Varves in Sweden. Fascinating science as well.
Abstract:Mineral magnetic, organic carbon and pollen studies of two varved Holocene lake-sediment sequences in the boreal forest of northern Sweden indicate that significant environmental changes took place between c. 6000 and 5700 bc. This interval is characterized by an increase in mineral-matter accumulation, which is a proxy for winter-snow accumulation, and a statistically significant decrease in total pollen influx (predominantly Pinus, Betula and Alnus), which may reflect lower spring and summer temperatures and increased frost frequency. Notable increases in the influx of deciduous tree species (including Quercus and Corylus) suggest a rapid change to warmer conditions between 5700 and 5600 bc. Given dating errors associa- ted with the varve chronologies and the Greenland ice-core timescales, the cold interval can be considered to reflect a regional (possibly global) climatic cooling, which is often referred to as the ‘8.2 kyr BP cooling event’. However, the younger age of the cold event in northern Sweden does not support the hypothesis of forcing by the sudden drainage of Laurentide glacial lakes into the North Atlantic, unless a minimal 300-year delay in ocean-atmospheric coupling is accepted. The data contribute to a complex picture of early-Holocene environmental change, in response to deglaciation of the Northern Hemisphere.
I am hoping someone more scientifically minded could determine whether there is any correlation with this proposed solar event that may coordinate within the 6th millennium of the glacial lake Varves data? Obviously, the solar event would be global would these other geological tests confirm it had more effect to our environment and possibly be a cyclic event that will reoccur in our future?
Drafts and dangnabbit! Forgot to add the PDF Source Link again! Source