GEODINAMIKA_LANJUT-4
description
Transcript of GEODINAMIKA_LANJUT-4
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WILSON CYCLEWILSON CYCLE
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OPENING PHASEOPENING PHASE
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Super Continent PANGEAp
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Selanjutnya terbentuk sebuah cekungan laut, akibat sesar-sesarnormal yang berkembang dan endapan sedimen tebal berkembangpada margin kontinental
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P ifProgresifPembentukan
RIFTRIFTPembumbungan danpenipisan kerak adalahhasil dari pembentukan
magma. Kerak merespon dengan
terjadi patahan‐patahannormal (graben),
mematahkan sedimen‐sediman yg terbentuk.Erosi terjadi di kedua
sisi rift.
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Tahap selanjutnya rifting‐terjadi memisahkan kerakTahap selanjutnya rifting terjadi memisahkan kerakbenua dikedua sisi, astenosfer naik ke permukaan, dankerak yang baru terbentuk. Bersifat basaltik
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Profil passive continental margin berdasarkan gravitasi, p g g ,magnet dan data seismik
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