Geologie : Divergence Convergence Voc Flashcards

1
Q

Divergence

A

Éloignement

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2
Q

Expansion oceanique

A

Grandissent ocean

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3
Q

Rift

A

Axe dorsale

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4
Q

C’est quoi fusion partielle peridotite

A

Peridotite ductile qui remonte a surface

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5
Q

Géothermie dorsale

A

Conditions de T des peridotite selon prof

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6
Q

Destin plaque océanique

A

Disparaitre

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7
Q

Métamorphisme hydrothermal

A

Modification minéraux par infiltration d’eau

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8
Q

Zone subduction

A

Plongement plaque océanique sous plaque chevauche qui s’enfonce dans l’asthenosphere

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9
Q

Plaque subduite

A

Plaque plongeante

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10
Q

Plaque plongeant est tjs une plaque ….

A

Plaque plongeant est tjs une plaque OCÉANIQUE

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11
Q

Teneur en silice

A

Conditions viscosité (+visqueux —>- coule )

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12
Q

Métamorphisme HP/BT

A

Transformation roche de l co forme metabasalte et metagabbro

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13
Q

Christelle bleu

A

Metagabbro a gleucophane

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14
Q

Coine du manteau

A

zone hydrate

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15
Q

Fermeture océanique

A

Fin hist ocean(provoque par collision)

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16
Q

Orogrnese

A

Créa montagne 🗻

17
Q

Créa 🗻

A

Orogenese

18
Q

Plis

A

D formation plastique roche sédimentaire

19
Q

Faille inverse

A

Déformation liéé a cassure roche (séisme)

20
Q

Nappe de chariage

A

Chevauchement où le terrain où d’enceinte roche recouvre roche nouv / recente