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migeo:

From yalegeotravels (emphasis mine):

The first stop in Vredefort was of a basement granite exposure that contained thin veins of pseudotacylite stretching through it like spider webs. This black silicate infill was presumably once glass, which as a amorphous solid degrades readily over geologic time. At this outcrop, the veins were meters thick and contained large pieces of the host granite within them. This site was a decommissioned granite quarry where huge blocks of granite had been cut and harvested before it became uneconomical to do so. 
The rounded edges of those granite chunks within the pseudotacylite matrix, many larger than a human head, showed the immediate heat that grasped them and the sheer fury of the upheaval from an asteroid impact. It takes a lot to liquify granite and feldspar, push the molten mixture through fractures in the host rock, and create enough pressure to propagate the veins throughout the host rock. 
On that day some 2.02 billion years ago, you didn’t want to be at Vredefort. 
It would have been a very bad day.
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migeo:

From yalegeotravels (emphasis mine):

The first stop in Vredefort was of a basement granite exposure that contained thin veins of pseudotacylite stretching through it like spider webs. This black silicate infill was presumably once glass, which as a amorphous solid degrades readily over geologic time. At this outcrop, the veins were meters thick and contained large pieces of the host granite within them. This site was a decommissioned granite quarry where huge blocks of granite had been cut and harvested before it became uneconomical to do so.

The rounded edges of those granite chunks within the pseudotacylite matrix, many larger than a human head, showed the immediate heat that grasped them and the sheer fury of the upheaval from an asteroid impact. It takes a lot to liquify granite and feldspar, push the molten mixture through fractures in the host rock, and create enough pressure to propagate the veins throughout the host rock.

On that day some 2.02 billion years ago, you didn’t want to be at Vredefort.

It would have been a very bad day.

I didn’t fall in love with you. I walked into love with you, with my eyes wide open, choosing to take every step along the way. I do believe in fate and destiny, but I also believe we are only fated to do the things that we’d choose anyway. And I’d choose you; in a hundred lifetimes, in a hundred worlds, in any version of reality, I’d find you and I’d choose you.

Kiersten White (via 5000letters)

Well, damn.

(via madam-cj-says-relax)

(Source: aknai)

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