Temperature high enough to exclude any xenomorph presence.
Yes, too hot to handle there!
But you can imagine some other worlds that might have something like the Mariana Trench and some strange highly adaptable creatures there.
For those who like exploring:
Mariana Trench Marine National Monument
Hydrothermal-vent chimney. In the center of the photo, you can see the vent fluid, which appears as dark smoke due to its high levels of minerals and sulfides. Look closely, and you will also see the chimney is crawling with Chorocaris shrimp and Austinograea wiliamsi crabs. Image courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas.