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Krakatau and the Tectonic Importance of Strait Sunda

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The activities and magmatic cycles of the Krakatau Volcanic Complex are closely related to the goology and tectonic position of Strait Sunda, which are more related to Sumatra than to Java. The basoment of Strait Sunda consists of ignimbrites and acid tuffs of 0.1 million year old, and the thormal gradient in and around Sunda Strait is about 6.7°C por 100 meter. Tectonically, strait Sundo is a key region between the Sumatra trench obliquo subduction and the Java tronch frontal subduction. The Bonioff-Zone underneath Sumatra dips with low angol of ±30° whoreas undornoath Java it dips with an angel of more than 60°, and the change or transition occurs in this region. The large Sumatra Fault zono which is a striko slip fault with right lateral movement ends in Strait Sunda in North South structures. In view of stress and strain consideration they must bo normal foults.

Numerous earthquakes of shallow shocks occurred within the strait between 1900-1976 with magnitudes ranging fron 4 to 6, and the Krakatau Volcanic Complex lies in a North-South tronding seismic belt. The author concludes the Goologically the western part of west Java, or the Banten Region, belongs to Sumatra.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

PVG A.83-12

Penerbit

Jakarta, Indonesia : Pusat Vulkanologi dan Mitigasi Bencana Geologi., 1983

Deskripsi Fisik

16 hlm; tabel; gmbr; peta

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

Sunda Strait
Gunung Krakatau
The tectonic importance

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Informasi Lainnya

Kode Wilayah

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Pulau Dan Lembar Peta

Sumatera

Provinsi

Kepulauan Riau

Koordinat - Latitude

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Koordinat - Longitude

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Versi lain/terkait

Lampiran Berkas