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Questions tagged [continent]

The tag has no usage guidance.

-3
votes
3answers
346 views

Given that water will center over the mass of Earth, how could Pangaea be the only continent?

Consider this scenario: If the surface density of Earth were constant, it would follow that it would be impossible to have all land mass that is above the floor of the ocean concentrated on one side ...
2
votes
3answers
206 views

Why Do Supercontinents Form? [duplicate]

It would seem, on the face of it, improbable that the continental land-masses would accumulate into a single composite, yet it has happened numerous times, and is expected to again in the future. ...
5
votes
1answer
212 views

How do scientists reconstruct pre Cretaceous continent if all plates that are currently left are younger than Cretaceous?

I have read that the oldest oceanic plate that we see today is from the Cretaceous period. If so, how do scientists reconstruct plate movements and continental structure pre Cretaceous? And aren't all ...
4
votes
1answer
63 views

Do ocean level rise estimates account for mantle elasticity and plate mass changes?

In the mainstream media the problem of ocean level rise is presented rather... over-simplistically - ice melts -> more water flows into the oceans -> water level rises -> continents sink. But it is ...
1
vote
1answer
167 views

Distortion-free map of all continents [closed]

I've been searching for a map that shows all continents in their actual size that is free of projection distortion, to no avail. Every map I found was of a particular projection type and as such ...
10
votes
0answers
139 views

Did the formation of Panama trigger the beginning of Ice Ages?

I have been studying ocean currents and associated energy flows in the eastern Pacific and western Atlantic oceans. I also looked at El Nino cycles. I also noted when the large glacial periods ...
1
vote
0answers
91 views

How do tectonic plates move upward? [closed]

And also, can this push continents and land-masses upward as well?I have not been informed of the phenomenon of tectonic plates rising up. I am yet unable to find a satisfactory answer on the internet,...
14
votes
2answers
783 views

How and when people first realized that Antarctica is a continent?

Recently I got startled by this question I asked myself and I can't seem to find any sources of answers. I have hypotheses about how it could have happened: It could have been by the fact that if you ...
4
votes
3answers
5k views

Is the continent with Australia in it Oceania or Australia?

I am making a quiz and I want to know whether Australia or Oceania is the continent? I have searched it on Google but I can't find an answer.
11
votes
1answer
236 views

Is Zealandia really big enough to be called a continent?

I was reading this article about Zealandia and got excited that there could be an underwater continent. However, when viewing the image (below) it appears that Zealandia is much smaller than any ...