{ bidder: 'ix', params: { siteId: '555365', size: [120, 600] }}, { bidder: 'openx', params: { unit: '541042770', delDomain: 'idm-d.openx.net' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot2' }}]}]; pbjsCfg = { var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); A piece of bread consisting mostly of the hard outer portion. Other common minerals are mica and hornblende. "authorization": "https://dictionary.cambridge.org/us/auth/info?rid=READER_ID&url=CANONICAL_URL&ref=DOCUMENT_REFERRER&type=ENTRY_TRANSLATE&v1=english&v2=crust&v3=&v4=english&_=RANDOM", cmpApi: 'iab', addPrebidAdUnits(pbAdUnits); { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, if(refreshConfig.enabled == true) The oldest continental crustal rocks on Earth are cratons between 3.7 and 4.28 billion years old. var pbTabletSlots = [ iasLog("exclusion label : resp"); name: "pbjs-unifiedid", 429), Machine learning helped demystify a California earthquake swarm, A Surprise Discovery Points to the Source of Fast Radio Bursts, Make These Barefoot Contessa Chicken Pot Pies, Limepocalypse! It is the outermost and thinnest layer of our planet and is least dense among all other layers. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_rightslot' }}]}, All rights reserved. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition }); Such old continental crust and the mantle below it are less dense than other places in the Earth. "sign-in": "https://dictionary.cambridge.org/us/auth/signin?rid=READER_ID", The solid, outermost layer of the Earth, lying above the mantle. iasLog("setting page_url: - https://dictionary.cambridge.org/dictionary/english/crust"); expires: 365 Send us feedback. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, }] { bidder: 'ix', params: { siteId: '195467', size: [300, 50] }}, Have any problems using the site? The brown outer part of white bread that you may have to cut off your child's sandwich is an example of crust. Granitic perspectives on the generation and secular evolution of the continental crust. a slice of bread from the end of a loaf, consisting chiefly of this. It has French ingredients like leeks and tarragon, and I use puff pastry to make the crust easy! Continental crust is broadly granitic in composition and, with a density of about 2.7 grams per cubic cm, is somewhat lighter than oceanic crust, which is basaltic (i.e., richer in iron and magnesium than granite) in composition and has a density of about 2.9 to 3 grams per cubic cm.

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