Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Vol 18, No 3 (2008): Jurnal Sumber Daya Geologi

MORFOSTRATIGRAFI TUF IGNIMBRIT MANINJAU DI NGARAI SIANOK, DUSUN BELAKANG BALOK-BUKITTINGGI, SUMATERA BARAT

Poedjoprajitno, Soemantri (Unknown)

Article Info

Publish Date
06 Jun 2008

Abstract

The ignimbtrite plato of Sianok Valley at Belakang balok Village was produced by two periods of Maninjau volcanic eruptions. The two eruption periods are separated by fluvio volcanic deposits, consisting of very qoarse sand and conglomerate. The two periods pyroclatic deposits at containing pumice and locally several coal.  These pyroclatic deposits were faulted and formed terrace morphology. The Sianok Valley is considered as an effect of the reactivation of basement fault throughting the ignimbrite deposits. Keywords:morphostratigraphy , Maninjau pumice tuf, terrace, fault, plato

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Journal Info
Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Website

Abbrev

JGSM

Publisher

Kementerian Energi dan Sumber Daya Mineral

Subject

Education Energy Engineering Environmental Science

Description

Jurnal Geologi dan Sumberdaya Mineral (JGSM) is an Indonesian scientific journal published by the Center for Geological Survey, Geological Agency, Ministry of Energy and Mineral Resources. The journal receives Indonesian or English articles. Those articles are selected and reviewed by our ...