Glassy pillow lava is found at the seamounts, a type of rock typically formed when basaltic lava emerges from a submarine volcanic vent.
42.
Kjerringberget partly consists of green rocks formed when subterranean magma solidified after flowing out and coming into contact with water, forming pillow lavas.
43.
A further sampling cruise by the United States Geological Survey ( USGS ) recovered pillow lava and hyaloclastite from 4 of the 8 volcanoes.
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The sulfide ore occurs at the same stratigraphic level as the Lower and Upper pillow lava contact, and is overlain by unmineralised lavas.
45.
The volcano's landform is now gone but some of volcanic rocks are preserved in the area, including pillow lavas, and breccia.
46.
There are pillow lavas in the Northwest Territories that are about 2.6 billion years old and are preserved in the Cameron River Volcanic Belt.
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These include the Amitsoq Tonalite-Trondhjemite-Granodiorite ( TTG ) orthogneisses, pillow lavas and pillow breccias, banded iron formations, granodiorites, and metasedimentary rocks.
48.
Geochemical results of pillow lavas and chill boundaries along five transects across the volcanic belt suggest the existence of three chemically different magma types within the Bravo Lake Formation.
49.
Filling spaces in between the pillows in the pillow lava units are dispersed metal oxide sediments that can also be seen as carbonates, volcanic glass and pelagic sediments.
50.
Underwater fissural eruptions originated from the pillow lava, which are produced by the rapid cooling of the magma when it comes in contact with water, obtaining their peculiar shape.
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