The part of the Earth system comprised of solid (mostly) silicate rock begins at Earth’s ground surface and extends down to the boundary between the mantle and core, about 2890 km below the surface. In a sentence or two, explain which of the three fundamental types of rock (igneous, sedimentary, metamorphic) forms most of the volume of Earth’s crust and mantle. Share your explanation with your classmates. Hint: Look back at Figs. A7.5.4 and A7.5.5, and remember that very little of the volume of the crust or mantle is liquid magma. Pressure (kilobars)O150diagenesis?100zeolite200subgreenschist300B.epidote-amphibolite400500Temperature (°C)600px-hornfels sa700granulite80090001020304050Depth (km) Subductingsedimentsare metamorphoseddue to increase inpressure andtemperature.300°C600°C900°C1200°CIdealizedgeothermalgradientShallow crustalrocks aremetamorphosed byheat emanatingfrom a nearbymagma body.Subducting oceanic lithosphereLow geothermal gradients are observedin subduction zones because coldoceanic crust and overlying sedimentsare descending into the mantle.IgneousintrusionsRocks buried in alarge sedimentarybasin may encounterlow-grademetamorphicconditions near thebottom of the pile.Rising magma transports heat toEarth's upper crust causing anincrease in the geothermalgradient.Subsidingbasin300°C600°C--900°C200°C

Rocks are the aggregates of minerals which are formed at various temperatures and pressures.

Answered: The part of the Earth system comprised…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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The part of the Earth system comprised of solid (mostly) silicate rock begins at Earth’s ground surface and extends down to the boundary between the mantle and core, about 2890 km below the surface. In a sentence or two, explain which of the three fundamental types of rock (igneous, sedimentary, metamorphic) forms most of the volume of Earth’s crust and mantle. Share your explanation with your classmates. Hint: Look back at Figs. A7.5.4 and A7.5.5, and remember that very little of the volume of the crust or mantle is liquid magma.