Facies analysis, biostratigraphy, and provenance of the late Neogene Seulimeum Formation, Northwest Aceh basin, Sumatra (Indonesia)

Nugraha, Gartika Setiya; Sunardi, Edy; Haryanto, Iyan; Adhiperdana, Billy Gumelar; Fakhruddin, Rakhmat; Fitriany, Ria; Gunarsih, Dina

doi:10.1016/j.heliyon.2023.e20032

Cited by 1 publication

(2 citation statements)

References 45 publications

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“…The constituent minerals of sandstones are classified according to their composition: monocrystalline and polycrystalline quartz, kfeldspar, plagioclase, rock fragments, and matrix. The percentages of quartz (Q), feldspar (F), and lithic (L) composition are plotted in the Q-F-L diagram to classify sandstones [16], to analyze tectonic setting [17], paleoclimates [18], and origin rock type [6,19].…”

Section: Experimental Methodsmentioning

confidence: 99%

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Provenance Analysis of the Rampong Formation Sandstone in the Ketukah Area, Gayo Lues, Aceh

Sartika,

Gunarsih,

Ahmad

et al. 2023

IPR

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The research location is in Ketukah, Gayo Lues Aceh, which is composed of the Late Oligocene to Early Miocene Rampong Formation. Lithology includes sandstones, conglomerates, and mudstones. The study aims to determine the origin of the sandstones in the Rampong Formation. Provenance studies are beneficial in providing information for oil and gas exploration. The analysis is critical for understanding the sediment transport channel, the overall depositional pattern of the basin, and predicting the location of sand bodies in the basin. Because the Rampong Formation is located in the North Sumatra Basin, the availability of provenance information is useful in efforts to search for oil and gas potential in the future. In this research, we restrict the study to the provenance, which includes the tectonic setting, origin rock, and paleoclimate where these sandstones originate. The methods are geological mapping and petrographic analysis. In petrographic analysis, we use JMicrovision to calculate mineral composition. The results showed that the sandstones of the Rampong Formation are arenite sandstones, especially sub-arkosic and sub-lith arenite. They originate from a tectonic setting known as a recycled orogen, related to the subduction of Eurasia and the Indo-Australian plates. The sandstones were formed from granite that had undergone low metamorphism in the Late Cretaceous to the Eocene period. In addition, the paleoclimate is humid.

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Section: Experimental Methodsmentioning

confidence: 99%

“…On the other hand, the current research has been carried out on the Neogene Seulimeum Formation, Aceh, Indonesia, where the sandstone comes from recycled orogenic tectonic settings. It is comprised mainly of the Woyla Group, and there are some contributions from Bentaro volcanic and Paleogene to early Neogene sediments [6].…”

Section: Introductionmentioning

confidence: 99%