Natural Wisdom: What Continent is New Zealand On?

For a country that is frequently left of world maps altogether, the question doesn’t seem to come up much. Hence when it does, it can be a head-scratcher: what continent is New Zealand On?

The answer is that it is part of a continent called Zealandia. Seriously. (Note: whether this is a “micro-continent” or a full “continent” we don’t see as a significant issue to this article).

Topographical Map of Zealandia
Topographical Map of Zealandia by World Data Center for Geophysics & Marine Geology (Boulder, CO), National Geophysical Data Center, NOAA [Public domain]
This sounds too perfect to be true. When we think about the topography of New Zealand, however, it starts to make a lot of sense with what is going on in this truly unique part of the world.

Most people, we imagine, who have spent time in New Zealand, especially in the Southern Islands – Fiordland National Park or the Southern Alps, will be struck by how unique this landscape is: mountains that instantly rise up out of the ocean, fjords and lakes.

It would seem like New Zealand flooded a long time a go and the waters never receded. That is pretty much the case. Zealandia is a sunken continent – sinking perhaps 23 million years ago with 93% of the continent remaining underwater.

The remaining 7% is the peaks – the highest land – much of this forming as a result of the movement of tectonic plates – pushing into each other and driving the earth’s crust up into mountains.

Like most island nations, New Zealand has this strong connection to the water – the water which is covering most of the continent, but because of this, there is in such close proximity mountainous and alpine regions that also form such an integral part to the identity of the place.

This post first appeared on our sister-site: naqag.com. Feature image by NAQAG

 

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Natural Wisdom: What is the Difference Between a Fjord and a Sound?

The name Fjord will, for many people, conjure up mental images of Norway. One of the world’s most famous Fjord’s, however, is known by a different terminology: Milford Sound (pictured below).

Milford Sound Edited

 

This made us curious (like other similar nomenclature debates such as river, creek, stream, etc…) as to what, if any, the distinction was.

Technically different things, a fjord is probably best visualized as a type of sound. If we take a Sound to mean a large ocean inlet, a Fjord is specifically one that has been carved out by a glacier meeting the coast before receding or being flooded by the ocean.

There is another similar geographical feature found half way around the world. The Musandam Peninsula in Oman looks very much like fjords and shares many of the same characteristics:

Cliffs in Musandam Peninsula
By StellarD (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)%5D, via Wikimedia Commons
The difference here is, this is the result of tectonic plates pushing into and under each other. This produces mountains in a traditional sense but as they begin to sink the sea water rises to create this Fjord-esque landscape.