Wish I Could Go Fishing: back tomorrow for a poet's birthday

One of a series of a series of 21 active, mud-spewing undersea
 volcanoes and hydrothermal vents, created by ... [a] violent,
undersea collision between two plates of the earth’s crust.

Wish I could go fishing. Back tomorrow with the birthday of a poet of poets.

Found this, in the meantime,  while researching "ocean vents" which I hadn't heard of until a story in the NYT about arsenic-eating organisms. "Scientists said Thursday that they had trained a bacterium to eat and grow on a diet of arsenic, in place of phosphorus — one of six elements considered essential for life — opening up the possibility that organisms could exist elsewhere in the universe or even here on Earth using biochemical powers we have not yet dared to dream about."

From there to ocean vents to the Marianas Trench. From the National Resources Defense Council:  "Alongside the trench runs a series of 21 active, mud-spewing undersea volcanoes and hydrothermal vents, created by the same violent, undersea collision between two plates of the earth’s crust."