the.com/rift

a crack so committed it builds oceans and breaks continents up forever.

means A rift is a split, crack, or break — whether in rock, in the ground, or between people once close.

from From Old Norse 'ript' meaning a breach or breaking of an agreement, related to 'rifa,' to tear or rive apart. English took it up in the Middle Ages first for literal cracks and fissures; the figurative 'rift between friends' came later, the metaphor leaning hard on that original sense of something torn that won't easily knit back together. A close cousin of the verb 'rive,' as in 'riven.'

valley maker
East Africa is splitting into two continents now
speed
Rifts widen slower than fingernails grow
ocean birth
The Atlantic began as a rift in Pangaea
deepest
Lake Baikal fills a rift over a mile deep
other worlds
Mars hosts Valles Marineris, a rift dwarfing Earth's
for instance

east african rift valley — 4,600 km geological formation stretching from lebanon to mozambique, where tectonic plates are actively separating

mid-ocean ridge — 65,000 km underwater mountain chain where new oceanic crust forms as plates diverge

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