JAGE
Vol 5, No 1 : Juni 2026

Karakteristik Fasies Turbidit Formasi Dolokapa Berdasarkan Data Stratigrafi Terukur di Kabupaten Gorontalo Utara

Yulin Podungge (Program Studi Teknik Geologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Gorontalo, Gorontalo)



Article Info

Publish Date
01 Jul 2026

Abstract

The Dolokapa Formation in North Gorontalo is a volcano-sedimentary unit whose sedimentary succession records deep-marine gravity-flow processes. This study aims to identify turbidite facies characteristics and reconstruct the submarine-fan depositional model based on measured stratigraphic sections. Field data were collected from three main observation routes, namely the Dolokapa, Sipatana, and Mooti Rivers, through lithological description, bed-thickness measurement, sedimentary-structure observation, and facies interpretation using the concepts of Bouma, Walker, Mutti, and Petter. The results indicate five facies associations: fining-upward wacke sandstone, coarsening-upward wacke sandstone, interbedded claystone and sandstone, interbedded sandstone and claystone with siltstone intercalation, and interbedded sandstone and claystone with conglomerate intercalation. These facies represent different parts of a submarine fan system, ranging from the upper fan to the channeled and smooth portions of suprafan lobes in the mid fan. The vertical facies succession suggests repeated turbidity-current deposition involving low-density turbidity currents, high-density turbidity currents, and cohesive debris-flow processes. This study refines local facies data of the Dolokapa Formation and supports its interpretation as a deep-marine submarine-fan deposit.

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Journal Info

Abbrev

jage

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science

Description

Journal of Applied Geoscience and Engineering (JAGE, P-ISSN: 2964-478X, E-ISSN: 2964-4534) is a peer-reviewed journal published by Geology Engineering Study Program, Universitas Negeri Gorontalo. JAGE provides open access to the principle that research published in this journal is freely available ...