C-Lekktor celebrates 20 years of dark elektro with '2.0' 2CD - Pre-order now
https://www.side-line.com/c-lekktor-celebrates-20-years-of-dark-elektro-with-2-0-2cd-pre-order-now/

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Derision Cult drops all new single and video: 'Warning Signs'
https://www.side-line.com/derision-cult-drops-all-new-single-and-video-warning-signs/

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askmenow

July 16, 2024, 16:30

Who proposed the concept of supercontinents and what is the theory of continental drift?

Geophysicist and meteorologist Alfred Wegener (1880-1930) ⬆️ first proposed the concept of supercontinents in 1912.

Wegener noticed that the shorelines of Africa and South America seemingly fit together like giant jigsaw puzzle pieces and therefore was convinced that all of Earth’s continents were once part of a supercontinent Pangaea.

Wegener suggested that the continental landmasses were “drifting” across the Earth.

Fossils of similar organisms across widely disparate continents ⬆️ encouraged his revolutionary theory of continental drift.

But Wegener could not explain the mechanism for how his theory works and thought that perhaps the rotation of the Earth caused the continents to shift towards and apart from each other. (It doesn't.)

Wegener’s theory was rejected for decades until scientists finally confirmed some of his ideas with the modern theory of plate tectonics.

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askmenow

July 15, 2024, 16:00

Which supercontinent emerged twice?

Gondwana is a supercontinent that emerged twice in the geological history of Earth.

The Early Gondwana (pre-Pangea) existed around 550-330 mya, and, together with Baltica, Siberia and Laurentia, was one of four landmasses that broke away from Pannotia.
⬆️ It was then the largest landmass on Earth, bringing together about 64% of the planet's landmass, but some geologists still don’t consider it a supercontinent.
The Early Gondwana’s assembly created the first massive mountain range on Earth as high as the Himalayas. Remnants of these mountains are found in Brazil and northern Africa.

The Late Gondwana (post-Pangea) emerged about 175 mya ago as the Southern part of Pangaea ⬆️ (the Northern part was Laurasia) and broke up about 150-140 mya.
It was then characterized by a tropical climate, a wide variety of flora and fauna, and a significant tectonic activity.
Today, the remnants of the Late Gondwana can be found in the southern hemisphere.

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askmenow

July 14, 2024, 8:00

What was the most recent all-in-one supercontinent?

The most recent and certainly the best known supercontinent is Pangaea.

The name "Pangaea'' comes from Ancient Greek words meaning "all Earth."

This is how Pangaea could look like ⬆️.

According to scientists, after Columbia, Rodinia and Pannotia, Pangaea was one of four all-in-one supercontinents that included all of Earth’s landmasses at their time.

Pangaea existed in the late Paleozoic and early Mesozoic when the dinosaurs arose.

Pangaea split when the Central Atlantic Ocean opened.

It was the progenitor of today's continents, and many of today’s mountain ranges were formed at the time of collision of continents and lithospheric plates.

However, today researchers believe that Pangaea never included all of Earth's landmasses. For example, modern-day north and south China were independent islands separated to the east of Pangaea around 359-299 million years ago.

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"Metaphors have a way of holding the most truth in the least space."

➖ @uQuotes ➖

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"Patience is the companion of wisdom."

➖ @uQuotes ➖

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askmenow

July 10, 2024, 20:35

How big was the supercontinent Columbia?

At peak accumulation, about 1.8 billion years ago, virtually all of Earth's land mass was joined to the supercontinent Columbia creating a surface estimated to have been about 12,900 km from North to South and about 4,800 km in its widest part from West to East.

It is named "Columbia" because scientists posited that the landmass connected what is now eastern India with the Columbia basalts region in what is now North America.

These are two images how this supercontinent could look like ⬆️.

Scientists believe that once sutured together, Columbia was long-lived, existing for more than 500 million years.

The landmass of this supercontinent began to fragment around 1.6 billion years ago because of increased magma plume activity in the Earth's mantle. The breakup was slow and could last from 1.6 to 1.2 billion years ago.

According to researchers, during the time of Columbia, the first plants colonized land in the form of red algae.

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Stahlmann drops brand new single 'Asche zu Asche' ahead of 'Phosphor' LP - Out now
https://www.side-line.com/stahlmann-drops-brand-new-single-asche-zu-asche-ahead-of-phosphor-lp-out-now/

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askmenow

July 8, 2024, 17:15

Where are the largest parts of the supercontinent Ur located today?

The largest parts of the possible supercontinent Ur that survive today are located in India, according to experts. This photo ⬆️ shows rock from eastern India, laid down during the Archean Eon. That rock is on the edge of the Eparchean Unconformity, a zone that shows a major time gap between the rock on one side and the rock on the other (a similar unconformity is found in the basement rock of the Grand Canyon).

The specifics of Ur are also very theoretical, and despite its supercontinent status, the land mass would have been smaller than modern-day Australia. This is how Ur could look like ⬆️.

This supercontinent is called Ur from the German prefix “ur” which means “original”, “fountainhead”.

Scientists believe that Ur formed from the same cratons as Vaalbara. So areas of Ur are also parts of Australia and Africa (Madagascar). But it is not believed that Ur is not a continuation of Vaalbara nor a successor.

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