Den geologisk tidsskala Flashcards

(13 cards)

1
Q

Prekambrium

A

Grunnfjellet dannet, Få organismer på jorden, peneplan

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2
Q

Kambrium

A

Norge dekket av hav, eksplosjon av antall arter

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3
Q

Ordovicium

A

Flere arter, bedre klima

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4
Q

Silur

A

Starten på den kaledonske fjellkjeden, mye kalkstein

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5
Q

Devon

A

Platene kolliderer og den kaledonske fjellkjeden er på sitt høyeste

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6
Q

Karbon

A

Grunnlaget for kull

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7
Q

Perm

A

Pangea ble formet og mye vulkanisme

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8
Q

Trias

A

Oppspreking av kontinetet

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9
Q

Jura

A

Dinosaurenes periode, grunnlaget for gass og olje i nordsjøen

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10
Q

Kritt

A

Varmere klima

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11
Q

Paleogen

A

Norge flat, men landet hever seg i denne perioden

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12
Q

Neogen

A

Fuktig klima, alpene dannes og store v-aler blir formet

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13
Q

Kvartær

A

Norge sitt landskap blir formet, 30-40 istider, nå er vi i en mellom istid

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