Earth’s geological structure and processes - Fundamentals of the Physical Environment - page 212

OCEAN
BASIN

VOLCANIC
ARC

TRENCH FORE-ARC BACK-ARC CONTINENT

Andesite-rhyolite
stratovolcano

Accretionary
prism

Fore-arc
basin

Back-arc
basin

Ocean Marginal sea

Metamorphic
aureole

Granite
ba tholith Greenschist

amphibolite
granulite

Asthenosphere
(peridotite)

Volcanic arc, including
metamorphic facies
Mélange, including

Flysch, including
volcanoclastic sediments
Flysch, with trench
turbidite

Oceanic (basalt) crust New basaltic magma

Lithosphere Continental (granite) crust Magma diapir

Figure 10.13 The tectonic morphology and principal rocks of destructive plate margins.

120° 180°

60°

Kamchatka
Basin

Aleutian
Basin

Okhotsk
Basin

Japan
Basin

40°

PACIFIC
PLATE

Parece Vela
Basin

20°

West
Philippine
Basin

South
China
Basin

Celebes
Basin

Bismark Basin

0°

Banda Basin

Solomon
Basin

Coral
Basin

20°

South
Fiji
Basin

Figure 10.14 Volcanic arcs,
back-arc basins and marginal
seas of the western Pacific
and Indonesia; key as for
Figure 10.6.

Tasman
Basin

40°