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"We measured the 14C levels in the pine sample at three different laboratories in Japan, the US, and Switzerland, to ensure the reliability of our results," A. J. Timothy Jull of the University of Arizona says. "We found a change in 14C that was more abrupt than any found previously, except for cosmic ray events in AD 775 and AD 994, and our use of annual data rather than data for each decade allowed us to pinpoint exactly when this occurred."
The team attempted to develop an explanation for the anomalous solar activity data by comparing the features of the 14C change with those of other solar events known to have occurred over the last couple of millennia.
"Although this newly discovered event is more dramatic than others found to date, comparisons of the 14C data among them can help us to work out what happened to the sun at this time," Fusa Miyake of Nagoya University says. She adds, "We think that a change in the magnetic activity of the sun along with a series of strong solar bursts, or a very weak sun, may have caused the unusual tree ring data."
originally posted by: the2ofusr1
a reply to: theantediluvian
t mentions or suggest that up until that time it had not rained ....
We know that the Amazon receives little rain if any at all
That is an interesting theory. It's especially interesting given all of the solar and gamma bursts that have been going on for the last 10 years or so.
originally posted by: IAMTAT
This was roughly the time the early Sumerian culture began to flourish.
Perhaps the radiation burst produced genetic changes resulting in another evolutionary advance of human civilization.
According to the Black Sea deluge theory, the Black Sea floods with salt water. Some 3000 cubic miles (12,500km) of salt water is added, significantly expanding it and transforming it from a fresh-water landlocked lake into a salt water sea.
Beginning of the desertification of north Africa, which ultimately leads to the formation of the Sahara desert from land that was previously savannah, though it remains wetter than today. It's possible this process pushed people in the area into migrating to the region of the Nile in the east, thereby laying the groundwork for the rise of Ancient Egypt Egyptian civilization.
Vinča script among the oldest writing systems
Subsequent radiocarbon dating on the Tărtăria finds pushed the date of the tablets (and therefore of the whole Vinča culture) much further back, to as long ago as 5500 BC, the time of the early phase of the Sumerian civilization in Mesopotamia. Still, this is disputed in the light of apparently contradictory Stratification archeology evidence.
If the symbols are indeed a form of writing, then writing in the Danubian culture would far predate the earliest Sumerian cuneiform script or Egyptian hieroglyphs. They would thus be the world's earliest known form of writing. This claim remains controversial.
it stands to reason that the samples originated with a long dead tree. My guess would be that the researchers compared rings in the specimen with those from a living tree were used to establish the date of the felling of the tree
On a serious note though, I am curious as to what the other effects on the Earth would have been, what of those would be readily perceptible to humans living at that time (intense auroras, visible much much further from the poles?) and what the results of those observations might have been?
bolding my emphasis.
“One of the main goals of research in this area, as in many other areas of China, has been the search for early Neolithic cultures. Until the mid-1980s the Hongshan, dated to c.4500–3000 B.C., was considered to be the earliest Neolithic culture of northeast China, and it attracted much attention both in China and in the West, not least because of its advanced jade industry and unique ritualistic expressions. Recognition of the pre-Hongshan occupation of northeast China started to emerge during the mid-1980s (Zhongguo Neimenggu 1985, 1987, 1988; Su 1986; Liaoning 1988) but only gained official recognition in the early 1990s with the classification of two pre-Hongshan techno-chronological entities (or “cultures”), the Xinglongwa dated to c.6200–5400 B.C.)and the Zhaobaogou dated to about 5400–4500 cal. (calibrated years) B.C.. During the 1990s and the first decade of the 21st century, more research confirmed the relatively early date of the Xinglongwa and Zhaobaogou. This, along with the analysis of the unique features of their material cultures, is used to ascertain the indigenous nature of the social-economic trajectory of the region. ~|~
originally posted by: loveguy
a reply to: theantediluvian
I imagine the Earth somehow stopped rotating for that ten year span, for the general area to continually receive the sun's rays, thereby increasing the carbon 14?
I wonder if the Earth's core/magnetic property was altered somehow; stopped flowing, then restarted ten years later?