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Quote by Graham Hancock

“There is indeed compelling evidence of a series of massive glacial surges at the end of the last Ice Age. These correlate with meltwater pulses and peaks of sea-level rise, recorded, for example, in 'drowned' reefs of Acropora palmata from the Caribbean-Atlantic region near the island of Barbados. Acropora is an efficient tracker of rising sea-level because it is a light-loving coral that dies at depths greater than about 10 meters. The Barbados reefs were drowned three times at the end of the last Ice Age -- at approximately 14,000, 11,000 and 8000 years ago -- and so suddenly and deeply on each occasion that they now form three distinct steps, one for each flooding peak (rather than having crept towards shallower water as would have been the case with more gradual sea-level rises).”

Quote by Graham Hancock

Book:Underworld: The Mysterious Origins of Civilization
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Underworld: The Mysterious Origins of Civilization

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Graham Hancock
Graham Hancock

Graham Hancock is a British writer known for his research into ancient civilizations and mysterious phenomena. His works delve into the mysteries of human history and culture, including ancient Egypt, the Maya, and Atlantis. more

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“In 1988 the German oceanographer Hartmut Heinrich was the first to come up with the firm geological evidence for such a cataclysmic 'iceberg-calving' process during the last Ice Age. By examining deep-sea drill cores sampled at various points across the North Atlantic he demonstrated the existence of widely dispersed layers of 'ice-rafted detritus' -- millions of tonnes of rocks and rocky debris that had once stood on land, that had been clawed up by the ice-sheets and that had ultimately been carried out to sea frozen into huge icebergs: 'As they melted they released rock debris that was dropped into the fine-grained sediments of the ocean floor. Much of this ice-rafted debris consists of limestones similar to those exposed over large areas of eastern Canada today. The Heinrich layers as they have become known, extend 3000 kilometers across the North Atlantic, almost reaching Ireland.' The Heinrich layers record at least six separate discharges of 'stupendous flotillas of ice-bergs' into the North Atlantic -- discharges that are now known, obviously enough, as 'Heinrich Events' and that are thought to have unfolded in concentrated bursts of activity that may, in each case, have lasted less than a century. Because of the progressive thickening of the Heinrich layers towards the western side of the Atlantic and the continuation of this trend into the Labrador Sea in the direction of Hudson Bay, it is obvious to geologists that 'much of the floating ice was sourced from the Laurentide ice-sheet'. However, other debris has been found intermingled in some Heinrich layers that 'could only have come from separate ice-sheets covering not only Canada, but Greenland, Iceland, the British Isles and Scandinavia'. Likewise, research into southern hemisphere ice-caps in the Andes and New Zealand shows that these too 'grew and then collapsed synchronously with the ice-rafting pulses recorded in the North Atlantic'. The implication [...] is that some 'global rather than regional forcing of climate change' must have been at work.”

GeologyIce AgeCataclysmDelugesIce SheetsIcebergs
Book:Underworld: The Mysterious Origins of Civilization
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“Around 12,800 years ago, it was as though an enchantment of ice had gripped the earth. In many areas that had been approaching terminal meltdown full glacial conditions were restored with breathtaking rapidity and all the gains that had been made since the LGM were simply stripped away: 'Temperatures ... fell back on the order of 8-15 degrees centigrade ... with half this brutal decline possibly occurring within decades. The Polar Front in the North Atlantic redescended to the level of Cabo Finisterre in northwest Spain and glaciers readvanced in the high mountain chains. With respect to temperature the setback to full glacial conditions was nearly complete ...' For human populations at the time, in many except the most accidentally favoured parts of the world, the sudden and inexplicable plunge into severe cold and aridity must have been devastating. And in the Karakoram-Himalayan region, as in other glaciated areas, it is very likely that it was accompanied by a significant readvance of the ice-cap that previously had been in recession for some 7000 years.”

Ice AgeDeep Human HistoryCataclysmYounger DryasIce Sheets
Book:Underworld: The Mysterious Origins of Civilization
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“We know from Glenn Milne's inundation data that Gozo and Malta were indeed one big island during the Ice Age, down to approximately 13,500 years ago, and that they did not take on their present form as an archipelago of three islands (with little Comino in between) until around 11,000 years ago. Accordingly, if the medieval tradition of Malta and Gozo as one big island is not a complete invention -- and why should it be? -- then, 'fantastic' though it may seem, it somehow preserves a memory of Malta as it appeared more than 11,000 years ago. It is well known that most medieval mapmakers were only copyists reproducing older maps and [...] I believe we cannot exclude the possibility that the single large island called Gaulometin of Galonia leta that has somehow survived on certain medieval maps may indeed be a representation of Malta in a much earlier time. A mental leap is required in order even to consider such a possibility. It is necessary to set aside all preconceptions about the past, and all unexamined notions of how societies evolve. Above all, we have to rid ourselves of the ingrained conviction that (despite some setbacks) the basic story of human civilization has been steadily and reassuringly onwards and upwards from the very beginning. It may not have been so. There may be tremendous gaps, of which we are blissfully unaware, in the evidence presently available to us concerning the origins and progress of civilization. In particular, there has been no sustained or serious search for very ancient underwater ruins along the millions of square kilometres of continental shelves flooded at the end of the Ice Age. So it is possible, and within the bounds of reason, that a civilization of some sort might have flourished during the closing millennia of the Ice Age and might not yet have been detected by archaeologists. A civilization not necessarily at all like our own but still advanced enough to have mastered complex skills such as seafaring and navigation (that do not call for a large material or industrial base) and to have left behind memories of the world as it looked before the flood and at various stages during the rising of the seas. The sort of civilization, perhaps, that would have built with megaliths and aligned them with navigational precision to the path of the sun. Maybe even a civilization that measured the earth, mapped it and netted it with a latitude and longitude grid. Until such a lost civilization has been entirely ruled out -- and we are far from that -- it is rational to keep our minds open to the possibility, however extraordinary it may seem, that certain ancient maps have indeed carried down to us broken images of the antediluvian world.”

ProgressHeritageIce AgeCataclysmLost CivilizationsIce Age CivilizationsDelugesUnderwater Ruins
Book:Underworld: The Mysterious Origins of Civilization
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“Europe lost many trees or their close relatives that today are only found native in the warm-temperate-subtropical ‘evergreen forests’ of south-eastern China or eastern North America (Combourieu-Nebout et al. 2015). These were largely replaced in Europe by trees of the temperate ‘mixed mesophytic forest’. Many taxa had already disappeared at the beginning of the Quaternary (e.g. Liquidambar, Meliosma, Pseudolarix false larch, Stewartia), while others survived longer (e.g. Liriodendron, Magnolia, Taxodium, Sequoia, Phellodendron cork tree, Tsuga, Carya) to vanish finally from Europe during the course of the early- or mid-Quaternary (Willis and McElwain 2014, Combourieu-Nebout et al. 2015, Birks and Tinner 2016).”

TreesIce Age
Author:Frank Krumm
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“As a result, the distribution maps for plant species don't look the same from interglacial to interglacial. Each climate change creates a new map, with new communities of species living together. Whole suites of species do not pick up en masse and decorously tiptoe south, making sure to keep together. It is rather mad scramble - albeit in geological time. Some of today's ecosystems have not fully bounced back from the last glaciation. One analysis suggested that thirty-six of fifty-five European tree species studied had still not spread out to the edges of their possible ranges. Beech trees are notoriously poky. In North-America they are still moving west across Michigan's Upper Peninsula.”

Ice AgeGlacialsInterglacialsRecolonization
Book:Rambunctious Garden: Saving Nature in a Post-Wild World
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