Yuniarti Yuskar

• Magister
• Lecturer at Islamic University of Riau

Coastal environment is one of main reservoir depositional system in the oil industry and becomes the main challenges in defining its characteristic, especially in lateral correlation. Research conducted in Bengkalis Island which has a unique characteristic of coastal depositional environment that affected by a tidal system related to modern analogu...

This research was conducted in the Sumba Strait, southwest of Sumba East Nusa Tenggara. The Purpose of this study is to determine the depositional facies characteristics of the Quaternary deep sediment. The sample was taken at a depth of 1858 m by gravity core in board of RV Baruna Jaya VII by the geology team of Ekspedisi Widya Nusantara LIPI 2016...

Most people in Bengkalis island use groundwater as their primary resource, but brackish water discovered in the wells located near the shore as well as in the distance. A hydrogeology study through geochemistry and isotope aspect conducted for the first time to identify the effect of saltwater intrusion (SWI) on groundwater. Na > Mg > K > Ca were t...

Polusi udara yang semakin hari semakin parah menyebabkan permasalahan kesehatan masyarakat sekitar lahan yang dibakar, bahkan merambah ke wilayah yang lebih jauh. Selain itu harga bahan pangan yang semakin meningkat akibat dari semakin berkurangnya produksi bahan pertanian dan perkebunan juga menimbulkan dampak negatif bagi masyarakat. Oleh karena...

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 use...

Study area is located on the Kampar river in the district Rumbio and surrounding areas, located on the upstream side which is about 100 kilometres from the source of the sediment that Bukit Barisan mountain, Kampar river has a length of 413.5 km, the average width of 143 m and a depth average 7.7 m. This river is a river with meanders type carrying...

Clustering slope stability in the Pangkalan Koto Baru, West Sumatra has become one of priority in disaster management. The method used for this study is using a combination of structural lineament analysis, scanline with window sampling and Rock mass rating (RMR) calculations. The analysis results of the fourteen observed slope sites showed signifi...

Bencana geologi berupa tanah longsor telah terjadi di beberapa tempat terutama pada jalur lintas Riau - Sumatra Barat tepatnya pada daerah pangkalan, Pangkalan Koto Baru dan sekitarnya. Penelitian ini bertujuan untuk membahas geologi struktur dan geologi kebencanaan untuk penentuan pola struktur, faktor utama terjadinya longsor dalam bentuk peta ra...

The geological hazard is a heavy landslide often struck around Tanjung Balik area, Koto Baru Sub District, Lima Puluh Kota District, West of Sumatra Province. Located along the highway Riau-West Sumatra Kilometer 10-15 and the coordinates are in 00˚08'40''N-0˚11'20 ''N and 100˚45'20''E-100˚47'00''E. The aim of current research work is to identify t...

Research areas are prone to landslides hazard. Detail location is in the Tanjung Balik area, Pangkalan Koto Baru Sub District, Lima Puluh Kota District, West Sumatra Province. Located is along the Riau – West of Sumatra Province Highway throughout kilometers 10-15. Coordinate are between 00˚08'40''-0˚11'20''N and 100˚45'20''-100˚47'00''E. The resea...

Saltwater intrusion becomes a common problem in coastal area. Northern coast of Bengkalis Island in Riau, Indonesia that contiguously to Malacca Strait is experiencing the problem particularly in Selat Baru area which considered as developing area and most of the people live close to the sea. Dug well is the main source of groundwater that had been...

The research area is in the location hit by landslide frequently. Located in Riau-West Sumatra Highway in Km 89-94, Pangkalan Sub District, Lima Puluh Kota District, West Sumatra Province. The research objective to analyse the geomorphological conditions, which is relevance an increased vulnerability to landslides in the study area. The method used...

Coastal environment is one of main reservoir depositional system in the oil industry and becomes the main challenges in defining its characteristic, especially in lateral correlation. Research conducted in Bengkalis Island which has a unique characteristic of coastal depositional environment that affected by a tidal system related to modern analogu...

Clustering slope stability in the Pangkalan Koto Baru, West Sumatra has become one of priority in disaster management. The method used for this study are using the combination of structural lineament analysis, scanline with window sampling and Rock mass rating (RMR) calculations. The analysis results of the fourteen observed slope sites showed sign...

The study area is located in some floodplains of meandering river environment along the Kampar River, Rumbio. Typical morphology of meandering river that found in this area can be classified as stream channel, floodplain, abandoned channel, and sand bars deposit. Meandering river system carries sediment supply by suspended and bed - load (mixed loa...

Deformation band at Petani Formation was a type of disaggregation band, where deformation resulted from tectonics stress at Plio – Pleistocene affecting sandstone layer that being deformed and resulted strain localization feature, filling with iron oxide sand. Aim of this study was to analyze effect of fluid flow connectitvity on layer that having...

This research investigates the effect of unbalanced moment directions on the behaviour of edge column slab connections using a finite element analysis. The analyses were done on subassembly edge column slab connections that were designed according to Indonesian Concrete Standard (SNI 2847:2013). Three unbalanced moment directions were considered na...

Rancaekek and Sayang area, West Java, are the area where many industrial factories are located.Thus, the region becomes the targeted destination for industrial development.The population in the area is rising due to the growth of industries causing the regional development becomes uncontrollable. In addition, the constant increment of waste and als...

The geological disaster of landslide has occurred in Merangin Village, Kuok Subdistrict, Kampar Regency, Riau Province which located exactly in the national road of Riau - West Sumatra at Km 91. Based on the occurrence of landslide, this research was conducted to study geological structure and engineering geology to determine the main factors causi...

Saltwater intrusion became an important issue at coastal region because it can affect the fresh water quality in surrounding areas. Jangkang and Deluk village which located in the northern coast of Bengkalis Island, facing similar problem therefore an initial stage of groundwater mapping and water quality assessment has been conducted by measuring...

Slope failure periodically occurred in Riau-West Sumatra road that could disconnect and affecting the activities in those two important provinces. The study of rock mass classification system using rock mass rating (RMR) had been done to obtain the information about rock strength of a cut slope along the road particularly in Desa Tanjung Alai (KM 7...

Sungai Kuning Village and surrounding area located in the eastern region of Bukit Suligi. Bukit Suligi and its surroundings are the exposed terrain of sandstone from the Sihapas Formation, which is the main reservoir in the Central Sumatra Basin. This study aims to get the sandstone analogy of surface geological data to be able to get better unders...

Karstification process occurs as a result of dissolution on limestone lithology formed in the typical morphology of caves, rounded or elongated pits and conical hills. This also related to a structural pattern that also intensively occurs at a western part of Buton Island. Research area located at latitude 5 27’0” S – 5032’0’’ S and longitude 122 4...

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 beco...

Buluh Cina Village is located at Siak Hulu District, Kampar Regency, Riau Province and its about 25 km from Pekanbaru City. This Village is designated as Tourism Village by The Government of Riau Province. This research aims to optimize the potential Geo-tourism by understanding the strengths and weaknesses aspect which is owned by Buluh China Vill...

The study area is located on the island of Buton in Southeast Sulawesi Province. The focus of research is in the Gonda and surrounding areas, a southern part of the island of Buton. Geographically located between 122 ° 42 ' 28' 'E - 122 ° 48' 00 ' ' E and 5 ° 25 ' 28 "S - 05 ° 25' 28 " S. This study focus on determining the stratigraphy and deposit...

Sumber air bersih masih menjadi masalah utama bagi masyarakat Desa Bantan Tua. Survei pemetaan sumur warga telah dilakukan untuk mendapatkan beberapa informasi mengenai kondisi airtanah di desa tersebut, diantaranya adalah informasi level airtanah dangkal, warna dan rasa airtanah. Beberapa sampel air juga telah diambil untuk kemudian dianalisis sec...

This research aims to know stratigraphy, structural geology, geological history and then to established tectonostratigraphy model and geological map of the research area. Geographically Gonda area located on 122° 42’ 28’’ WL - 122° 48’ 00’’ WL dan 5° 25’ 28” SL - 05° 25’ 28” SL. and lies in the administrative region of Gonda district, Buton regency...