The Laurentian Abyss is an underwater depression off the eastern coast of Canada in the Atlantic Ocean. Not a trench, but more of an "underwater valley", it is estimated to be at most ~19,685 feet (3.7 miles; 6.0 km) in depth. The Laurentian Abyss is a product of glaciation and water currents from the Saint Lawrence Seaway.
The trench is the site of hydrothermal vents with their own sub ecosystems independent of sunlight.
Read more about Laurentian Abyss: In Popular Culture
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“It is not menstrual blood per se which disturbs the imaginationunstanchable as that red flood may bebut rather the albumen in the blood, the uterine shreds, placental jellyfish of the female sea. This is the chthonian matrix from which we rose. We have an evolutionary revulsion from slime, our site of biologic origins. Every month, it is womans fate to face the abyss of time and being, the abyss which is herself.”
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