Leonardo, on 05 May 2011 - 05:06 PM, said:
Alewyn,
As I stated previously, our planet is very active. Around the time you speak of, give or take a century or two, there were undoubtedly some localised catastrophes - a flood, volcanic eruption, maybe even an impactor. Because early communities tended to arise near water, or on fertile land such as found near volcanoes, and these early communities were not only relatively small, but quite fragile when compared to today's communities, local events which might cause some hardship today were fatal to them.
However, the only event around that time that we know of which had a global, or near-global effect was climactic - the drying of the Sahel.
Leonardo,
First of all, we are not talking of the drying out of the Sahel only, but of the whole North African region known today as the Sahara Desert. The Sahel has continuous dry and wet spells. As recently as 2010 the Sahel again suffered a serious drought.
Scientists talk about an abrupt or sudden climate change around 4000 to 4200 years ago but, how sudden is sudden? In geological or paleo-climatic terms even a period of 300 to 500 years can be regarded as sudden. What I am talking about is an instantaneous event (for want of a better word) and something which would not exceed, say, one to three years.
Let us look at the facts:
1. Most of North Africa lies at elevations of less than 200 meters a.m.s.l. This would mean that Mega-Tsunamis could have inundated vast tracts of land.
2. Ice cores from Kilimanjaro show a 300 year drought, but what triggered this drought?
3. The Albedo index in North Africa seems to have increased from anywhere between 15% and 18% to above 30% some 4000 years ago. How sudden or gradual did this take place? Extensive grassland fires lighted by Tunguska-type explosions or exploding asteroids followed by massive floods or tsunamis would push up the reflection coefficient immediately.
4. The mega-lakes in North Africa disappeared since ca 4200 or 4000 years ago. Obviously this did not take place overnight (Lake Mega-Fezzan was the biggest lake in the world and Lake Chad is still shrinking to this day). From the sediment cores drilled here one could possibly not expect to find an instantaneous event unless one is specifically looking for such. Even if such an event (massive floods or tsunamis) did take place, the chances are that the turbulence created by the sudden inrushes of water or wave action would not have left clearly distinguishable markers in the sediment cores.
5. Now consider the following four web-sites:
http://www.scienceda...90712080500.htm
Sahara's Abrupt Desertification Started By Changes In Earth's Orbit, Accelerated By Atmospheric And Vegetation Feedbacks
ScienceDaily (July 12, 1999) WASHINGTON
One of the most striking climate changes of the past 11,000 years caused the abrupt desertification of the Saharan and Arabia regions midway through that period.
The transition to today's arid climate was not gradual, but occurred in two specific episodes. The first, which was less severe, occurred between 6,700 and 5,500 years ago. The second,
which was brutal, lasted from 4,000 to 3,600 years ago. Summer temperatures increased sharply, and precipitation decreased, according to carbon-14 dating. This event devastated ancient civilizations and their socio-economic systems.
The change from the mid-Holocene climate to that of today was initiated by changes in the Earth's orbit and the tilt of Earth's axis.
But what caused the changes in the earths orbit and the tilt of the earths axis?
http://www.scientifi...n-sahara-desert
From Bountiful to Barren: Rainfall Decrease Left the Sahara Out to Dry
How a once-wet landscape became one of the world's great deserts
By Adam Hadhazy May 9, 2008 | 5
The data also confirms that a drop in rainfall was the major reason the area turned into a dusty badland. Based on the sediment samples, the researchers determined that Yoa's waters (in north-eastern Chad)
suddenly grew quite salty about 4,000 years ago. They
speculate the salinity spiked because the streams that had previously drained salt out of the lake vanished as rainfall lessened. This abrupt event shows how a relatively small occurrencesuch as a slight slide in rainfall
may have a tremendous impact.
http://news.bbc.co.u...ture/390097.stm
Using a new computer simulation of the Earth's climate, German scientists say that the Sahara underwent a brutal climate change about 4,000 years ago.
Over a very short time scale - possibly as short as 300 years - it went from grasslands with low shrubs to the desert we are familiar with today. Summer temperatures increased rapidly and rainfall almost ceased. The change devastated many ancient cultures and caused those that did survive to migrate elsewhere.
From Wikipedia:
The Neolithic Subpluvial sometimes called the Holocene Wet Phase was an extended period (from about 7500-7000 BC to about 3500-3000 BC) of wet and rainy conditions in the climate history of northern Africa. It was both preceded and followed by much drier periods.
The Neolithic Subpluvial began during the 7th millennium BC and was strong for about 2000 years; it waned over time and ended in the 4th millennium BC.
Please note lake Yoas sudden increase in salinity about 4000 years ago. Again, massive sea floods, although instantaneously, would take time to evaporate and leave a discernable salt layer. So again my question: was it gradual or instantaneous?
Also remember professor Weiss observation of the
sudden increase of salinity and the layer of silt in Akkad dated to 2193 BC.
I would like to suggest that Yoas about 4000 years ago and Akkads 2193 BC both refer to the same event.
Professor Weiss also commented on the
sudden migrations of people all over the Middle East.
While scientists are still grabbling with the timeframes of the desertification of North Africa, we must then take notice of the eyewitness accounts of the ancient scribes. When you read their accounts, there is no doubt that they described a very sudden or almost instantaneous event.
Please read again the Ipuwer Papyrus, Gilgameshs Epic and the Curse of Akkad
Ipuwer:
1.
Floods
Behold, Egypt is fallen to pouring of water, and he who poured water on the ground has carried off the strong man in misery. (Note: Swept away by a flood.)
When men send a servant for humble folk, he goes on the road until he sees the flood; the road is washed out and he stands worried.
Indeed many dead are buried in the river; the stream is a grave (tomb) and the place of embalmment has become a stream. (Note: People drowned. They would not have buried people intentionally in their only source of drinking water.)
[…] his children who are witnesses of the surging of the flood.
Indeed, the desert is throughout the land, the nomes (districts) are laid waste. (Note: Submersion and / or denudation from floods?)
... those who were on their husbands beds, let them lie on rafts.
Behold, noble ladies are now on rafts...
(note rafts and not boats this would indicate improvising in a sudden crisis)
2.
Contaminated water
Indeed the Nile overflows, yet non plough for it. (Note: Not a drought)
Indeed the river is blood yet men drink of it. (Note: Muddy, salty and decaying bodies of dead people?)
Men shrink from human beings and thirst after water. (Note: Bodies decaying in water sources)
3.
Earthquakes
Indeed, the land turns around as does a potters wheel,
towns are destroyed and Upper Egypt has become an empty waste. (Note: could also refer to floods and the resultant denudation of arable lands)
Indeed, those who were in the place of embalmment are laid out on the high ground, and the secrets of the embalmers are thrown down because of it. (Note: Tombs destroyed by earthquakes. It seems unlikely that tomb robbers, as some would have it, would have removed dead bodies from their graves just to dump them outside.)
Behold, the secret of the land whose limits were unknown is divulged, and the Residence is thrown down in a moment.
(The French archaeologist, Claude FA Schaeffer, concluded as far back as 1948 that earthquakes throughout Mesopotamia caused the initial collapse)
4.
Fire
Indeed, doors, columns and walls are burnt up.
Behold, the fire has gone up on high, and its burning goes forth against the enemies of the land.
(Meteorite activities and Tunguska-type explosions causing widespread fires?)
5.
Multiple Deaths
…and there is no man of yesterday.
Indeed, men are few, and he who places his brother in the ground is everywhere. (Note: Burying people in the ground not in the river)
6.
Disease and Pestilence
Indeed, hearts are violent, pestilence is throughout the land, blood is everywhere, death is not lacking, and the mummy cloth speaks even before one come near it.
Throughout Ipuwers lamentations he recorded how hordes of refugees streamed into Egypt and ravaged and pillaged the country. He described scenes of social disorder and anarchy where the rulers and upper classes were deposed of by the working classes and wandering bandits.
The Prophecy of Neferti
See, there are great men in the governance of the land, yet what has been done is as though it had never been done.
Re must begin by refounding (rebuilding) the land which is utterly ruined, and nothing remains., and
This land is destroyed and there are none who care for it; there are none who speak and there are none who act.
The sun is veiled, and will not shine when the people would see; none will live when the sun is veiled by a cloud, and everyone is dulled by the lack of it.
…the south wind will oppose the north wind, and the sky will not be with one single wind.
Re separates himself from men; he shines, that the hour may be told, but no one knows when noon occurs, for no one can discern his shadow, no one is dazzled when he is seen; there are non whose eyes stream with water, for he is like the moon in the sky, though his accustomed time do not go astray, and his rays are in mens sight as on former occasions.
4 Neferti described the Nile without water which sounds like a severe drought:
The river of Egypt is dry and men cross the water on foot;
He continued, however: …men will seek water for ships in order to navigate it, for their course has become the riverbank, and the bank serves for water; the place of water has become a riverbank…
This could rather be interpreted as the river having changed its course because of either a flood induced silting up or an earthquake.
The Curse of Akkad
For the first time since cities were built and founded, the large fields produced no grain.
The flooded fields produced no fish.
The watered gardens produced no honey and wine,
The heavy clouds did not rain.
The curse also mentions flaming potsherds raining from the sky
From Wikipedia:
For many years, the events described in "The Curse of Akkad" were thought, like the details of Sargon's birth, to be purely fictional. But now the evidence of Tell Leilan, and recent findings of elevated dust deposits in sea-cores collected off Oman, that date to the period of Akkad's collapse suggest that climate change may have played a role.
My observation
:
From Harvey Weiss work at Tell Leilan re the increased salt content of the ground and the layer of silt, it is obvious that it was much more than just climate change.
Even at Ur a massive silt layer was discovered. (ca. 1920 AD)
The Oera Linda Book
How the bad times came.
1. During the whole summer the sun had been hidden behind the clouds, as if unwilling to look upon the earth. There was perpetual calm, and the damp mist hung like a wet sail over the houses and marshes. The air was heavy and oppressive, and in men's hearts was neither joy nor cheerfulness.
2. In the midst of this stillness the earth began to tremble as if she was dying. The mountains opened to vomit forth fire and flames. Some sank into the bosom of the earth, and in other places mountains rose out of the plain. The Old Land (Altland), called Atland by the navigators, disappeared, and the wild waves rose so high over hill and dale that everything was buried in the sea. Many people were swallowed up by the earth, and others who had escaped the fire perished in the water.
3. It was also in Finda's land (The East) that the earth vomited fire, and in Twiskland (Germany). Whole forests were burned one after the other, and when the wind blew from that quarter our land was covered with ashes. Rivers changed their course, and at their mouths new islands were formed of sand and drift.
Here we have all the elements of the Egyptian and Akkadian disasters as described before in one picture the cloud cover, the lack of wind to the fire, earthquakes, floods and death which lasted for three years, followed by refugees and anarchy.
My question again: Where did the 19th century authors of the OLB get this information from?
Also see
http://personal.eune...mari2.htm#akkad
Edited by Alewyn, 06 May 2011 - 08:20 AM.