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Summary Aardrijkskunde

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samenvattingen aardrijkskunde: - opbouw aarde - van continentendrift tot platentektoniek - kringloop van gesteenten

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Institution
Secondary school
Study
KSO
Course
School year
5

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Uploaded on
February 28, 2021
Number of pages
4
Written in
2020/2021
Type
Summary

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OPBOUW AARDE
ONTSTAAN AARDE EN HAAR SCHILVORMIGE OPBOUW
vloeibare planeet  herschikking door zwaartekracht  schilbouw


ONDERZOEK NAAR INWENDIGE STRUCTUUR AARDE
- Info uit boringen
o Aardoppervlak tot binnenste aarde = 6370 km
o Nog maar 12 km geboord
 Hard gesteente
 Hoe warmer, hoe dieper
 Te grote economische kost
- Info uit vulkanisme
- Info uit seismologisch onderzoek: bestudeert trillingen in verschillende lagen van aarde
o Kunstmatig
o Aardbevingen

SOORTEN TRILLINGEN
- Hypocentrum
o S-golven
 Trillingsrichting en voorplantingsrichting loodrecht
 Kleinste snelheid
 Niet voortplanten in vloeistof
o P-golven
 Trillingsrichting en voortplantingsrichting gelijk
 Grootste snelheid
 Voortplanten in vloeistof
- Epicentrum


INWENDIGE STRUCTUUR AARDE
Soort korst Dikte Ouderdom Typerend Dichtheid
chemisch
elementen
Continentale korst +/- 35 km Ouder SIAL Lichter
Oceanische korst +/- 6 km jonger SIMA Zwaarder
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