Pillow lava

（重定向自Pillow structure）

Cross-section of pillow lava near Oamaru, New Zealand

Weathered Archean pillow lava in the Temagami Greenstone Belt of the Canadian Shield

A pillow lava from an ophiolite sequence, Northern Apennines, Italy

Pillow lavas are lavas that contain characteristic pillow-shaped structures that are attributed to the extrusion of the lava under water, or subaqueous extrusion. Pillow lavas in volcanic rock are characterized by thick sequences of discontinuous pillow-shaped masses, commonly up to one metre in diameter. They form the upper part of 'Layer 2' of normal oceanic crust.

单词	Pillow structure
释义	Pillow structure 英语百科 Pillow lava （重定向自Pillow structure） Pillow lavas are lavas that contain characteristic pillow-shaped structures that are attributed to the extrusion of the lava under water, or subaqueous extrusion. Pillow lavas in volcanic rock are characterized by thick sequences of discontinuous pillow-shaped masses, commonly up to one metre in diameter. They form the upper part of 'Layer 2' of normal oceanic crust.
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