The Unstartled Steppes of Dream
Inquiries, Requests, and a Place to Spill Your Guts   Submissions  
I am Ashley.
This is my personal blog. If you want just marine biology, go here.
I love the world; I really don't like people.
I balance all this animosity towards the human race with being an almost always kind and gentle being to all creatures.
I'm highly introverted and nature is my primary escape from people.
Creepy-crawly-slimy things are my favorites. Dinosaurs are fantastic.
Future marine biologist; presently an amateur entomologist, ichthyologist, artist, biologist, and writer.
Literature, video game, and music connoisseur.
I'm so full of passion for the world that it hurts.
I think a lot, I laugh a lot, I love a lot.
Almost none of the photos are mine and only some of the drawings are mine.
Listen in.

The seafloor between plate boundaries is far from featureless. Volcanic island chains are found far from any plate boundary due to the presence of hotspots (deep-seated and long-lived zones of volcanic activity) in the mantle. Some hotspots, such as the one beneath Iceland, are associated with divergent plate boundaries, which others lie in the middle of oceanic or continental plates. Chains of volcanoes often trail away from mid-ocean hotspots, with the oldest volcanoes, long extinct, now lying far away from the hotspot. These hotspot tracks are aligned along the direction of motion of the overlying plate. They change direction when the plate motion changes and may be interrupted when a new spreading ridge opens up, as it has between India and the Réunion Hotspot. Some hotspot tracks link to areas where huge amounts of basalt flooded fromt he hotspot onto the surface long ago. The Tristan da Cunha hotspot is linked to flood basalts on both sides of the south Atlantic Ocean. (Photo source)

The seafloor between plate boundaries is far from featureless. Volcanic island chains are found far from any plate boundary due to the presence of hotspots (deep-seated and long-lived zones of volcanic activity) in the mantle. Some hotspots, such as the one beneath Iceland, are associated with divergent plate boundaries, which others lie in the middle of oceanic or continental plates. Chains of volcanoes often trail away from mid-ocean hotspots, with the oldest volcanoes, long extinct, now lying far away from the hotspot. These hotspot tracks are aligned along the direction of motion of the overlying plate. They change direction when the plate motion changes and may be interrupted when a new spreading ridge opens up, as it has between India and the Réunion Hotspot.

Some hotspot tracks link to areas where huge amounts of basalt flooded fromt he hotspot onto the surface long ago. The Tristan da Cunha hotspot is linked to flood basalts on both sides of the south Atlantic Ocean.

(Photo source)

— 7 months ago with 2 notes
#pretending to study for geology  #hotspot  #volcano  #geology  #ocean floor  #tectonics  #plate tectonics  #earth 
  1. explosionsoflife posted this
RSS     /      Archive     /      Random
Astronaut by Peter Vidani     /      Tumblr