Litosfer (Pengertian, Struktur Lapisan Bumi, Siklus Batuan) Flashcards

1
Q

etimologi

A

lithos –> batu

sphere –> bulatan

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2
Q

kerak bumi ada berapa? apa saja?

A

ada dua, kerak samudera dan kerak benua

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3
Q

kerak samudera

A

5-10 km
basalt (basa)
silikat (SiMa) magnesium

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4
Q

kerak benua

A

20-70 km
granit (asam)
silikat (SiAl) aluminium

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5
Q

mantel bumi ada berapa? apa saja?

A

ada tiga, litosfer (mantel atas), astenosfer, dan mesosfer (mantel bawah)

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6
Q

litosfer

A

+- 100km
kuat, dingin, kaku
mantel atas + kerak

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7
Q

astenosfer

A

+- 400 km
panas, kental, padat, plastis
magma

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8
Q

mesosfer

A

+- 2.400 km
padat kokoh
batuan basa + besi

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9
Q

inti bumi ada berapa? apa saja?

A

ada dua, inti dalam dan inti luar

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10
Q

inti bumi disebut lapisan apa?

A

lapisan NiFe –> nikel, ferrum/besi

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11
Q

inti luar

A

+- 2.200 km

besi + nikel cair

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12
Q

inti dalam

A

+- 1.200 km

besi + nikel padat

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13
Q

batuan beku

A

pendinginan

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14
Q

batuan sedimen klasik

A

penghancuran batuan akibat tenaga eksogen

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15
Q

batuan sedimen kimia

A

pelarutan, oksidasi

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16
Q

batuan sedimen organik

A

aktivitas organisme

17
Q

batuan metamorf

A

perubahan suhu dan tekanan

18
Q

magma

A

terganggunya keseimbangan suhu dan tekanan

19
Q

siklus batuan

A

magma –> batuan beku –> sedimen klasik –> sedimen organik/kimiawi –> metamorf