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All Journal Journal of Geoscience, Engineering, Environment, and Technology JOURNAL OF EARTH ENERGY ENGINEERING
Tiggi Choanji
Department of Geological Engineering, Universitas Islam Riau, Riau, Indonesia 28284
Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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Uniqueness Deposit of Sediment on Floodplain Resulting From Lateral Accretion on Tropical Area : Study Case at Kampar River, Indonesia Yuniarti Yuskar; Tiggi Choanji
Journal of Geoscience, Engineering, Environment, and Technology Vol. 2 No. 1 (2017): JGEET Vol 02 No 01 : March (2017)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1109.566 KB) | DOI: 10.24273/jgeet.2017.2.1.12

Abstract

Kampar rivers has a length of 413 km with average depth of 7.7 m and width of 143 m. Sixty percent of this rivers are meandering fluvial system which transport and deposit a mixture of suspended and bed-load (mixed load) along low energy. River channel that moving sideways by erosion is undergoing lateral migration and the top of the point bar becomes the edge of the floodplain and the fining-upward succession of the point bar will be capped by overbank deposits of Kampar River. Along the Kampar Rivers, there are more than 60% of floodplain sediments and almost all of the floodplain formed by bend migration on the suspended-load channels of Kampar watershed. This formation consist of succession of fine to medium sand and silt/mud, with root traces, that form as drapes on the prograding bank. These beds dip mostly channel wards and quickly wedge out as they grade up and onto the floodplain. The depositional model is presented showing how lateral accretion can make a significant contribution to the preservation of fine-grained within channel deposits in contemporary floodplains. The examples presented here demonstrate that analogues to ancient point-bar deposits containing alternating sandstone and shale sequences are common in the low-energy fluvial environments of Riau rivers especially Kampar rivers.
Geotourism on XIII Koto Kampar: an Approach for Sustainable Eco-Geo System Adi Suryadi; Tiggi Choanji; Yuniarti Yuskar; Nanda Natasia; Tristan Aulia Akhsan; M Revanda Syahputra
Journal of Geoscience, Engineering, Environment, and Technology Vol. 4 No. 4 (2019): JGEET Vol 04 No 04: December 2019
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2019.033 KB) | DOI: 10.25299/jgeet.2019.4.4.3783

Abstract

XIII Koto Kampar has become one of the potential geotourism destinations in Riau Province. The beauty of geomorphological view of XIII Koto Kampar is the main attraction for tourism. This study aims to expose the uniqueness of geological conditions that form the geomorphological of study for educational, social and economic purposes. The method used for this study is a combination of geological and geomorphological mapping and assess the inventory of geosites. Geomorphological of study area is consist of wide lake with some islands on it. Based on the elevation, geomorphology of study area devided into four which are flatland, gentle hill, steep hill and very steep hill. The result of geological mapping shown there are two dominated rock claystone and sandstone. Geotourism potential of study area classified into three main zone namely geomorphological landscape zone, water play zone and waterfall zone. Sustainable system of geotourism of XIII Koto Kampar is potential livelihood to increase the economical of local society.
Karstifikasi dan Pola Struktur Kuarter Berdasarkan Pemetaan Lapangan dan Citra SRTM Pada Formasi Wapulaka, Pasar Wajo, Buton, Sulawesi Tenggara. Yuniarti Yuskar; Harisma Buburanda; Tiggi Choanji
Journal of Earth Energy Engineering Vol. 6 No. 1 (2017): APRIL
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1366.043 KB) | DOI: 10.22549/jeee.v6i1.66

Abstract

Karstification process occurs as a result of dissolution on limestone lithology formed in typical morphology of caves, rounded or elongated pits and conical hills. This also related with structural pattern that also intesively occurs at western part of Buton Island. Research area located at lattitude 5027’0” S – 5032’0’’ S and longitude 122049’30” E - 122052’30” E. Purpose of this research was to identified karst landscape and karstificatiom process on Wapulaka Formation and recognize the structural pattern on this formation. By using field observation and SRTM data interpretation we considered that karst formations formed on Wapulaka Formation was Quarter limestone which diagenesis process of dissolution forming karst landform also related with uplifted event at pliocene – pleistocene. This formed related with complex interaction between the geology, climate, hydrology and biological factors that created various landscape morphology such as caves, underground river, stalagtite, stalagmite and others cave ornament.
Co-Authors Harisma Buburanda, Harisma M Revanda Syahputra Nanda Natasia Suryadi, Adi Tristan Aulia Akhsan Yuniarti Yuskar