modele radial Terre Flashcards

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1
Q

profondeur lehmann

A

5000km

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2
Q

Profondeur Guntenberg

A

3000 km

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3
Q

Moho CC

A

30km

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4
Q

Moho CO

A

7km

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5
Q

Quelle etait la premiere theorie expliquant la presence de lave et de la chaleur interne de la terrea

A

Feu central

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6
Q

densité de la Terre

A

5,52

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7
Q

densité lithosphère

A

2,7

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8
Q

densité noyau

A

13

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9
Q

Composition chimique CC

A

Si, O, Al

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10
Q

Composition CO

A

Si, O

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11
Q

Composition Manteau sup et inf

A

O, Si, Mg, Fe

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12
Q

Composition noyau int et ext

A

Fe, Ni

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13
Q

Schema Differenciation terrestre

A
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14
Q

schema gradient geothermique

A
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15
Q

schéma comportement onde sismique

A
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16
Q

schema structure interne Terre

A
17
Q

differents types de météorites

A

Chondrites, mixtes et ferreuses

18
Q

Pourquoi pense-t-on que les chondrites sont indifférenciées ?

A

Composition proche de celle de la Terre qui elle est differenciée (non homogene, répartition différenciée selon les couches)