Deep gabbro

Beneath the seafloor

Magma cooling slowly at depth grows larger crystals and forms gabbro. This coarse-grained rock makes up much of the lower oceanic crust. Its structure varies with magma supply and tectonic setting.

html,body{position:static!important;height:auto!important;overflow:auto!important}body{color:#e8f1ff}body>:not(noscript){display:none!important}#static-seo-content img{display:block;max-width:100%;height:auto}#static-seo-content{max-width:800px;margin:40px auto;padding:24px;font:16px/1.7 Arial,sans-serif}#static-seo-content a{color:#a8d5ef}#static-seo-content nav{display:flex;flex-wrap:wrap;gap:12px} Folded sedimentary rock beneath the seafloor, with labels for natural gas, oil, formation water, seal rock and source rock.

Folded sedimentary rock beneath the seafloor, with labels for natural gas, oil, formation water, seal rock and source rock.

Deep gabbro

Magma cooling slowly at depth grows larger crystals and forms gabbro. This coarse-grained rock makes up much of the lower oceanic crust. Its structure varies with magma supply and tectonic setting.

Ocean trench Earth’s interior Deep gabbro · Wikipedia