I have been trying for some time to publish my full web book one section at a time on Facebook, but it ends up not working as well as I had thought, and not enough review and dispersal there of my material, so I thought I would try this blog format. I had built this blog page about three years ago, and just had never used it.
For any of you that may not be familiar with my work, I discovered evidence of a lost civilization or culture on the East and Gulf Coasts of North and Central America in 2008. Over the last 4 years I have been researching and documenting the locations and specific evidence to support the initial finding. The original discovery include underwater or sunken harbors, canals and channels that are on a secondary tidal shoulder, under 6' to 9' of ocean level. Almost all the evidence presented regarding these anomalies have no connection whatsoever to any modern or current land based use. In fact they are almost all offshore anywhere from hundreds of feet from the current shore line, to a few that are out on the continental shelf in the open ocean, two and a half miles beyond current land. They all match each other in depth characteristics, as well as matching the depth of the so called "Bimini Road-Harbor".
To review this data, my websites or other information or material relating to 'Ancient Canal Builders' or 'The Last Great Cataclysm – 7,000 Years Ago' in any detail, it is important to understand the significance of sea level raise during the end of the Pleistocene, and the first half of the current Holocene epoch as a solid dating mechanism.
Late Pleistocene, early Holocene Sea Level Rise
During the early Holocene, between about 15K and 7K years ago, six or more catastrophic to super cataclysmic events occurred that on each occasion radically and nearly instantaneously changed the Earth's ambient temperature, causing three rapid ice sheet melt periods, termed by oceanographers as "Meltwater Pulse" periods. The first meltwater pulse was the most sudden and the most severe, occurring about 14,800 years ago. Between then and 13,800 ybp, in about 1,000 years, the resulting ice melt pulse caused a global Sea Level increase of about 75'. That is about 7' 6” of global ocean rise every 100 years. That is an enormous rate of ice melt and consequent ocean level increase.
To grasp the significance, it calls into question the very basics of Hydro and Thermal Dynamics. From a lay viewpoint, there seems to be only one explanation for such a rapid ice melt, and that is some radical form of 'heat transfer'. As the Sun is the only external heat mechanism in the solar system, it follows logically that the Sun was the primary cause of at least the first and probably all three rapid melt pulses. Of course that does not exclude an impact or near impact event to initiate the change, though it could also be a solar driven event. A "roll-over" or crustal slip not triggered by some external agent probably would not account for a rapid to instant increase or decrease in ambient heat index.
The amount (cubic meters or tons) of ice melt during the first meltwater pulse is staggering, considering it occurred during a very short period of time, relatively speaking (about 800 years). In any case, ocean levels rose about 75 ft, during that time, and the start (or beginning) and end of the first pulse appears to have occurred on a sudden and cataclysmic basis.The intervening 800 years between the end of the first and beginning of the second meltwater pulse is called 'The First Little Ice Age'. During that first 800 odd years, very little ice melted, probably during a temperature range that was only slightly warmer than current.
As indicated on the graph, the second meltwater pulse was of shorter duration than the first, and seems to have been less exposed to the extreme temperature of the first pulse. During the second meltwater pulse, ocean rise was about 35'. The beginning and end events were dramatically and obviously catastrophic. The second break, though not a classic 'little ice age' was significantly warmer than the first, and also lasted about 800 years, during which time ocean level only rose about 5'6" or less.The third meltwater pulse between about 11.2K years ago, and 7K years ago is the primary period that my work covers, because it is the highest sustained ocean level rise across the first half of the Holocene. During this period ocean levels rose about 195' over a 4,000 year period, or roughly 5' every 100 years during that period.
My work will explore a vast array of evidence that supports a super catastrophic event occurred at 7K years ago, (+ or - 100). The following chart demonstrates ocean rise between 7K years ago and current levels as being just over 5'6", and most of that occurred during a slowdown following the 7K event. Ocean levels have rose worldwide variably less than 1' over the last 5.5K years.
- [abstract] [DOI] Fleming, Kevin, Paul Johnston, Dan Zwartz, Yusuke Yokoyama, Kurt Lambeck and John Chappell (1998). "Refining the eustatic sea-level curve since the Last Glacial Maximum using far- and intermediate-field sites". Earth and Planetary Science Letters 163 (1-4): 327-342.
- Fleming, Kevin Michael (2000). Glacial Rebound and Sea-level Change Constraints on the Greenland Ice Sheet. Australian National University. PhD Thesis.
- "Modelling Holocene relative sea-level observations from the Caribbean and South America". Quaternary Science Reviews 24 (10-11): 1183-1202.
In this work, I will try and document (cite) the scientific evidence that my assertions are made upon.
John Jensen Nov. 2, 2013