North Atlantic geoid high, volcanism, glaciations and Atlantis

[Mario Dantas]

On 7/24/2022 at 10:25 PM, cormac mac airt said:

You are continuously abusing what a geoid is and geodesics does. Neither has anything to do with your fictional impactor and it should be pointed out that India moved to its correct position over a period of 100 million years and NOTHING like your fictional Greenland movement within the last 12,000 years, the latter of which is unevidenced.

cormac

I have decided to start another thread on Atlantis... i propose an honest discussion regarding the geoid, and Atlantis. I will forward new information i have collected by posting it here.

Something happened that changed the whole planetary gravity and produced the regional geoid high, we can witness at the northern sector of Mid Atlantic Ridge. The region from in front of Gibraltar until about 40 km from Iceland is the thickest oceanic crust of the longest mountain range in the world, the MAR.

 

I did two images of the geoid at the same scale and overlapped them as you can see above. For all we know it is very similar to the shape of Greenland. This can't be denied, i hope. The geoid anomaly in the Atlantic is also coincident with the topography of the ocean floor.

Quote

North Atlantic geoid high, volcanism and glaciations

Abstract

[1] Shallow topography, geoid high and intense volcanism in the northern Mid Atlantic Ridge are interpreted as enhanced by the loading on the adjacent continents by ice caps during upper Cenozoic glaciations. The load of ice packs on the continental lithospheres of North America and northern Europe generated radial mantle flow at depth. In our model, these currents, where flowing from west and east, faced each other below the northern Atlantic, joining together and upwelling. Numerical modeling of this process supports the development of dynamic topography leading to uplift of the sea-floor and inducing a regional geoid high. The upper mantle, being pumped from the deep mantle and rising to a few km shallower than average, may have contributed to larger asthenospheric melting, and to ridge centered excess magmatism, as observed in the Northern Atlantic.

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2009GL041663

Does this not seem strange? The fourth dimension (time) must not be considered here...

Quote

1. Introduction

[2] The lithosphere generated by the Mid Atlantic Ridge (MAR) east of Greenland underlies the youngest (<60 Myr) and narrowest part of the Atlantic Ocean. This portion of the northern Atlantic shows three peculiar characters, 1: it is about 1–3 km shallower than the average mid-oceanic ridge (Figures 1a and 1b); 2: it displays diffuse positive gravity (>30 mGal) and geoid (>50 m) anomalies (Figures 1c, 1d, and 1f); 3: it is the seat of larger than average magmatic productivity, resulting in the thickest oceanic crust of the entire MAR, up to about 40 km below Iceland [Kaban et al., 2002]. The thickness of the Cretaceous-Early Cenozoic (pre-glaciations) oceanic crust in the northern Atlantic is rather 4–6 km in average [e.g., Shillington et al., 2006].

Fig.1 (a) Topography (data after ETOPO1, http://www.ngdc.noaa.gov/mgg/global/global.html); (b) elevation of the Mid Atlantic Ridge; the bathymetric distribution along the MAR shows a high in the northern Atlantic which is limited not only to the Iceland area but it extends ca 20° northward and 40° southward; (c) geoid anomaly along the Mid Atlantic Ridge (data after the EGM96 model, http://cddis.nasa.gov/926/egm96/egm96.html); (d) geoid height; notice how the northern Atlantic geoid high is located between the North American and Scandinavian ice bodies; (e) topography-bathymetry along the cross-section on the map to the left; (f) geoid height along the same section. The blue curves in panel Figure 1d show the borders of the ice bodies according to ICE-5G. The geoid is shallower along the eastern flank of MAR and the crest of the anomaly is offset to the east of the oceanic ridge. (g) Thickness in map and (h) cross-section in purple of the ice cap at the last glacial maximum (21 Kyr BP; data after the ICE-5G model [Peltier, 2004]). Mid-ocean ridges are shown as red lines. The purple great circle in Figure 1g shows the trace of the modeled profile of Figure 2.

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2009GL041663

[Mario Dantas]

[Mario Dantas]

[Trelane]

Also, no.

[cormac mac airt]

2 minutes ago, Mario Dantas said:

Misrepresenting a geoid or geodesics DOES NOT make it true. 
 

cormac

[Mario Dantas]

I am disappointed! But not defeated...

These are fresh new images. You kind of push me to it, in the sense that i am not forging anything. Just pointing similarities and oddities. I know that the chronological aspect is very important, but the truth is that ignoring time can yield very interesting results, imo. There is a clear anomaly in front of Gibraltar with so many similarities and nobody says a word.

something interesting i just read about the north Atlantic anomalously shallow basin :

Quote

 North Atlantic topographic and geoid anomalies: The result of a narrow ocean basin and cratonic roots?. King, Scott. (2005)

There are anomalous, long-wavelength swells in the geoid and topography over the north Atlantic. The north Atlantic geoid swell is one of three prominent features in the global geoid after removing the effects of subducted slabs and glacial rebound. The swell is a 25- to 40-m peak-amplitude high and covers an area greater than 3000 × 3000 km. The north Atlantic ocean basin is anomalously shallow-by as much as 1500 m-compared to similarly aged ocean floors on the rest of the of the world's ocean basins. I use a series of calculations to investigate whether the geoid and topographic anomalies in the north Atlantic are consistent with the edge-driven convection hypothesis, with small-scale flow driven by the Greenland and Scandinavian cratons. I find that the small-scale convection pattern driven by the edge of a deep cratonic root can extend from the craton as far as 1000 km and upwell along a passive preading ridge. However, the north Atlantic geoid and topographic anomalies are difficult to reconcile with either a plume or an edge-driven convection mechanism.

https://www.researchgate.net/publication/283810801_North_Atlantic_topographic_and_geoid_anomalies_The_result_of_a_narrow_ocean_basin_and_cratonic_roots

 

Edited July 30, 2022 by Mario Dantas
Simplification

[Earl.Of.Trumps]

22 minutes ago, Mario Dantas said:

I speak of honesty out of fear to infuriate people around here and not be understood.

I am doing my research and this is the result of my thinking. But maybe Greenland wasn't more than just the largest island in the world...

 

If you post as Atlantis is a given to achieve your end result, I don't have to read any further. It is far from a given. 

[Mario Dantas]

 

 

[Mario Dantas]

[Abramelin]

So now, with this picture, you're suggesting Europe didn't even exist when Greenland floated to its present location.

[Mario Dantas]

Quote

A forked tongue is a tongue split into two distinct tines at the tip

https://en.wikipedia.org/wiki/Forked_tongue

As you can observe, the MAR exhibits a geological "forked tongue" (for lack of a better word). Why would that be the case? Maybe because upper mantle ascended from both sides of the Atlantic, meeting at the center?

Moreover, the extremity point in the MAR where this happens (in the Google Earth) is a very strange detail in the geoid:

It seems like the beginning of the north Atlantic anomaly. A yellow line (20) has been drawn in the geoid as if the tip reached both sides...

Edited July 30, 2022 by Mario Dantas
clarification

[Abramelin]

Mario, you still fail to explain how Greenland moved from the Pillars of Hercules, then crossed the Mid-Atlantic Ridge unharmed, and settled at its present location.

[Mario Dantas]

38 minutes ago, Trelane said:

No.

Again, No.

Just posting the same stuff over and over again isn't gaining you any traction if you haven't noticed. 

That is unfair. These are new images, although there compositions with older ones. I am trying to see and forward something here. I will just make a new one to prove my point.

[jethrofloyd]

21 hours ago, Mario Dantas said:

I am disappointed! But not defeated..

That's what Plato said when he got the first negative reviews for Atlantis

[Trelane]

7 minutes ago, Mario Dantas said:

That is unfair. These are new images, although there compositions with older ones. I am trying to see and forward something here. I will just make a new one to prove my point.

No, it's quite fair and probably more than I should be considering the sheer absurdity of what you are proposing.

Now i can see what the members who have been here longer than me have referred to your nonsense meant.

I would love to see what any of the actual categories of geologists would say about this rubbish.

[Abramelin]

34 minutes ago, Mario Dantas said:

That is unfair. These are new images, although there compositions with older ones. I am trying to see and forward something here. I will just make a new one to prove my point.

You are posting on this site for what reason?

We here discuss things. We often don't agree. But by that we learn.

Believe me, I have posted many ideas of mine that were eventually proven wrong.

And that doesn't feel ok, but that is what a forum is all about: you post something you're convinced of is true, and then someone shows up with data that contradicts with whatever you believed in.

And sometimes you find out, all by yourself, you were wrong.

Truth sucks, but it makes you learn.

Edited to add:

You may have noticed I also don't give up easily. I'm stubborn like a mule.

Edited July 30, 2022 by Abramelin

[Sir Wearer of Hats]

So, let me get this straight - there was a geological event that shifted an island from rhe Atlantic, up to the North Sea. MD says that the sea floor shows signs of that movement. 
Are there any other locations where this has happened?

[Mario Dantas]

2 hours ago, Abramelin said:

Mario, you still fail to explain how Greenland moved from the Pillars of Hercules, then crossed the Mid-Atlantic Ridge unharmed, and settled at its present location.

Are you familiar with the Phaethon myth described in Plato' Critias?

I propose that an impact or near collision took place in the Indian ocean (although a near collision would be difficult because the geoid tells us that something odd is happening at the lower mantle level). The Indian anomaly in the geoid is probably telling that some disturbance altered different layers of the upper and lower mantle, giving the appearance of an actual hole in the crust.

After the impact the previous planetary system (was "erased" and changed by means of water ice, lava and violent continental crashes). I also propose that the earth slightly expanded (and of course later on ceased to expand), facilitating the fast movement of landmasses like India or Greenland.

Seafloor spreading would then be a consequence of this event revealing itself like the proof that continents were indeed much closer within a ancient smaller radius earth.

These geologic "convulsions" could be the answer as to why the peculiar topography of the northern MAR, or the important geoid anomaly, exist.

When all the ice melted (except for Antarctica and Greenland) and sea level rose as much as 140 m as a consequence of intense heat consuming all the ice that would have existed in a snow ball earth planetary setting, with an important region being under the sun's influence, like polar regions as Greenland, with six months of continuous solar influence or midnight sun. The north pole was once under Greenland

The surface of the planet would have been dramatically changed to become e.g. the Sahara desert, or the Himalayas, the Atlas range or the ice on top of Greenland.

Why does this not work? The chronology does not favor my hypothesis, but could it be wrong? Several re heatings of the oceanic crust would have disguised its actual age, making it look much older... unimaginable crustal stresses would have taken place if an impact of this magnitude ever took place. The planetary mantle convection mechanism could have also started after this event, We know that the interference reached a great depth in the mantle and occupied a huge area.

 

 

Edited July 30, 2022 by Mario Dantas
correction

[Abramelin]

3 hours ago, Mario Dantas said:

Are you familiar with the Phaethon myth described in Plato' Critias?

I propose that an impact or near collision took place in the Indian ocean (although a near collision would be difficult because the geoid tells us that something odd is happening at the lower mantle level). The Indian anomaly in the geoid is probably telling that some disturbance altered different layers of the upper and lower mantle, giving the appearance of an actual hole in the crust.

After the impact the previous planetary system (was "erased" and changed by means of water ice, lava and violent continental crashes). I also propose that the earth slightly expanded (and of course later on ceased to expand), facilitating the fast movement of landmasses like India or Greenland.

Seafloor spreading would then be a consequence of this event revealing itself like the proof that continents were indeed much closer within a ancient smaller radius earth.

These geologic "convulsions" could be the answer as to why the peculiar topography of the northern MAR, or the important geoid anomaly, exist.

When all the ice melted (except for Antarctica and Greenland) and sea level rose as much as 140 m as a consequence of intense heat consuming all the ice that would have existed in a snow ball earth planetary setting, with an important region being under the sun's influence, like polar regions as Greenland, with six months of continuous solar influence or midnight sun. The north pole was once under Greenland

The surface of the planet would have been dramatically changed to become e.g. the Sahara desert, or the Himalayas, the Atlas range or the ice on top of Greenland.

Why does this not work? The chronology does not favor my hypothesis, but could it be wrong? Several re heatings of the oceanic crust would have disguised its actual age, making it look much older... unimaginable crustal stresses would have taken place if an impact of this magnitude ever took place. The planetary mantle convection mechanism could have also started after this event, We know that the interference reached a great depth in the mantle and occupied a huge area.

 

 

Mario, the impact of the asteroid that created the Chixculub crater 66 million years ago would have been peanuts compared to your scenario.

[Essan]

10 hours ago, Mario Dantas said:

 

When all the ice melted (except for Antarctica and Greenland)

Why was there ice on Greenland when it was situated in the mid Atlantic?   And inhabited by Atlanteans?   And elephanst?  Surely (almost) all the ice on Greenland must be no more than 13,000 years old?   



 

[Mario Dantas]

12 hours ago, Trelane said:

Absolutely not. 

Have you tried actually studying or reading about geology before you post this stuff? Hilarious.

 

To tell you the truth, my work does not let me be more productive and understanding regarding these issues. There is simply no time for me to engage in When you say studying or reading, yes, but i am a freelancer since i read or study several geologic information available, but through a different "lens" so to speak. I am looking for evidences regarding Plato's account of the lost island. For instance, not being an expert is a very crucial element in my research, this is not my area of expertise...

Nevertheless, i can assure you that reheating can alter the properties of the "lithospheric column"?

Quote

Thermal resetting
Injection of extra heat into the lithospheric col-
umn affects the depth-heat flow path no matter how
it is done. The question is whether the reheated
lithosphere could return to the original cooling path
of the boundary layer within a reasonably short time.
If it does, it must be at an age younger than its actual
age.

https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.590.5593&rep=rep1&type=pdf

Quote

Bearing in mind that hotspots are known to exist
[30] and affect the thermal structure of lithosphere
[31], a reasonable explanation for the discrepancy
between the crustal and thermal ages is some type of
reheating of the lithosphere.

Idem

[Mario Dantas]

14 hours ago, stereologist said:

Here is some of the trash showing you do not do any research.

Here is the typical brainless mutterings you post: "Maybe because upper mantle ascended from both sides of the Atlantic, meeting at the center?" The motion is from the MAR outward. Why can't you get even the trivial ideas right?

And stop with the fake images. Annoying fake pictures is all you seem to have.

You got me there... the motion must be outward from the ridge. I did not ponder enough about it. I have found this a week ago, when fiddling with the geoid and ocean floor topography. The southern extremity of the northern MAR anomaly starts there, and that "bifurcation" exists there for a reason. The Atlantic anomaly ends there, and from that point on the remaining MAR further south is within the "normal" average gravity for the ocean floor, i guess.

[stereologist]

8 minutes ago, Mario Dantas said:

You got me there... the motion must be outward from the ridge. I did not ponder enough about it. I have found this a week ago, when fiddling with the geoid and ocean floor topography. The southern extremity of the northern MAR anomaly starts there, and that "bifurcation" exists there for a reason. The Atlantic anomaly ends there, and from that point on the remaining MAR further south is within the "normal" average gravity for the ocean floor, i guess.

So basically you are still unaware of what you are posting. Here you have posted nothing of value.

The mantle rising forms the mid ocean ridge. The motion is not what you state. Fix your blunders and move forward.

[Mario Dantas]

23 hours ago, Abramelin said:

You are posting on this site for what reason?

We here discuss things. We often don't agree. But by that we learn.

Believe me, I have posted many ideas of mine that were eventually proven wrong.

And that doesn't feel ok, but that is what a forum is all about: you post something you're convinced of is true, and then someone shows up with data that contradicts with whatever you believed in.

And sometimes you find out, all by yourself, you were wrong.

Truth sucks, but it makes you learn.

Edited to add:

You may have noticed I also don't give up easily. I'm stubborn like a mule.

I learned a lot and still am learning here. Yes, we learn with our errors. But my conviction is that the subject is so vast that i simply couldn't explain it properly (and since i do not yet fully understand it myself). I can imagine how scandalized people get reading whatever i write here. I could, nevertheless, listen to their honest opinions and reflect that in my work. 

I can imagine you are trying to say that i am basically wrong. But what i can assure you is that i might be wrong about some of the stuff i post, but the main picture is definitely that of a catastrophic event, larger still than the other big extinction events that we know of.

Imagine that the great Plato after all these years, informed mankind of an invaluable historic knowledge, that of the earlier existence of an island when the earth was a different planet and that there existed already a complex society in Atlantis, way before the Paleolithic. The best example i can come up with is Göbekli Tepe...

12.000 years ago?

If there was ever an Atlantis, this must be civilizational related...

The later upper Paleolithic period shows nothing like it:

Quote

• 14,800 years ago: The Humid Period begins in North Africa. The region that would later become the Sahara is wet and fertile, and the aquifers are full.^[46]
• 14,200 years ago: The oldest agreed domestic dog remains belongs to the Bonn-Oberkassel dog that was buried with two humans.
• 14,000–12,000 years ago: Oldest evidence for prehistoric warfare (Jebel Sahaba, Natufian culture).
• 13,000–10,000 years ago: Last Glacial Maximum, end of the Last Glacial Period, climate warms, glaciers recede.
• 13,000 years ago: A major water outbreak occurs on Lake Agassiz, which at the time could have been the size of the current Black Sea and the largest lake on Earth. Much of the lake is drained in the Arctic Ocean through the Mackenzie River.
• 13,000–11,000 years ago: Earliest dates suggested for the domestication of the sheep.
• 12,900–11,700 years ago: The Younger Dryas, a period of sudden cooling and return to glacial conditions.
• c.12,000 years ago: Volcanic eruptions in the Virunga Mountains blocked Lake Kivu outflow into Lake Edward and the Nile system, diverting the water to Lake Tanganyika. Nile's total length is shortened and Lake Tanganyika's surface is increased.
• 12,000 years ago: Earliest dates suggested for the domestication of the goat.

https://en.wikipedia.org/wiki/Timeline_of_prehistory

[cormac mac airt]

26 minutes ago, Mario Dantas said:

I learned a lot and still am learning here. Yes, we learn with our errors. But my conviction is that the subject is so vast that i simply couldn't explain it properly (and since i do not yet fully understand it myself). I can imagine how scandalized people get reading whatever i write here. I could, nevertheless, listen to their honest opinions and reflect that in my work. 

I can imagine you are trying to say that i am basically wrong. But what i can assure you is that i might be wrong about some of the stuff i post, but the main picture is definitely that of a catastrophic event, larger still than the other big extinction events that we know of.

Imagine that the great Plato after all these years, informed mankind of an invaluable historic knowledge, that of the earlier existence of an island when the earth was a different planet and that there existed already a complex society in Atlantis, way before the Paleolithic. The best example i can come up with is Göbekli Tepe...

12.000 years ago?

If there was ever an Atlantis, this must be civilizational related...

The later upper Paleolithic period shows nothing like it:

https://en.wikipedia.org/wiki/Timeline_of_prehistory

No it isn’t, otherwise we wouldn’t be here. 
 

Try again since “before the Paleolithic” is pretty much before humans existed. 
 

cormac

Edited July 31, 2022 by cormac mac airt