Oleh: Rimbaman

Abstraksi : In relation to rapid urban industrial development mostly concentrated a long the northern coastal lowland of west Java has been producing instability in many physical environmental balances. The physical and environmental instabilities caused by geological condition and un effective land use it ...

Oleh: L. Sarmili;Nasrun;M. Surachman

Abstraksi : North Padang West Sumatera Coast is a linear shoreline type. The shoreline is located along Padang to Pariaman and can be placed as an erosion coastal plain. The coastal plain widespread along north northwest Padang city and it is formed by an alluvial deposit. The erosion along the coastal plain ...

Oleh: A. Faturachman;L. Sarmili;S. Lubis;D. Setiadi;U. Kamiludin

Abstraksi : The north coastal plan is one alternative on the extended coastal area in Jakarta. As a capital city, which has a fourth population growth in the world, a Muara Baru water is one part the reclamation project plan. The area is planed to be a Central Business District (CBD) in contrast to keep North ...

Oleh: Indra Badri;Andiani Djarwoto;Wawan Sutarjan;Suhari

Abstraksi : Determination location of settlement area in urban environment requires environmental geological data. These data include all the environmental geological components such as geological resources and geological hazards. It is also necessary to observe non-geological factors such as distance to ...

Oleh: Rudy D. Hadisantono;Eddy Mulyadi

Abstraksi : When we think about volcanoes we will remember the hazards that usually happens mainly when the eruption occurs. The existence of hundreds of active volcanoes, which are spread over the islands of Indonesia, can cause potential hazard to the people living in the surrounding areas. The effects of ...

Oleh: Sutikno

Abstraksi : Landslides in Indonesia occurred in 410 locations between 1994 1998. It causes the death of 597 people, the total destruction of 3400 houses, the devastation of several building such as schools and houses of worship, and also the infrastructures. The landslides of 1998/1999 are the highest compared ...

Oleh: Herry Purnomo;Dodid Murdohardono;Harris Pindratno

Abstraksi : From the technical geology point of view, the main obstacle in the development of Jakarta is the presence of several soft but thick layers with characacteristics that are detrimental to that development. Physical development in such areas face the risks of land subsidence. As a first step in ...

Oleh: Sari B. Kusumayudha;M.T. Zen;Sudarto Notosiswoyo;Rudy Sayoga Gautama

Abstraksi : Based on the differentiation of the hydrodynamic, surface and subsurface flow patterns, and water discharge pattern, the hydrogeologic system of the Gunungsewu area, Yogyakarta Province can be divided into 3 (three) sub-systems, i.e. the Panggang Sub system in the west, the Wonosari-Baron ...

Oleh: Saifudin

Abstraksi : It is known that village has an important role in development program in Indonesia and it should given a special treatment, especially the villages that are located on the small island, an island that have area less than 100 km2. The general problem that occurred on those islands, is lack of fresh ...

Oleh: Ade Suriadarma;Saifudin

Abstraksi : Water resources in small island is very limited as the balance of fresh and sea water is unstable. The island form, sea current, and sea tidal differentitaion contribute on the spreading of fresh water, especially on the very small island. In orde to support the development plan of Tanimbar Island, ...

Oleh: Rachmat Fajar Lubis;Prihadi Sumintadireja A;Nasjruddin Lubis

Abstraksi : Groundwater is the most important factor in triggering landslides. Rising water table and pressure, are mainly contributed to slope failures. Most of the researches measure the water table level directly from well located in populated area or from drilling data. In this paper, we are proposing a ...

Oleh: I. Hadi S.;Kenji Jinno;T. Nisshizaki;K. Nakagawa

Abstraksi : Groundwater is one of source for fresh water which to be used for fulfill the need of human for either fresh water or irrigation. Precipitation is a major recharge source of groundwater through the unsaturated zone with a favorable geographical terrain. Although the hydrogeological conditions quite ...

Oleh: Rudy Suhendar;Suhari;Suyanto

Abstraksi : Waste disposal sites, especially in the rapid growing cities, often raise the environmental problems. The limiting suitable area for waste disposal site near the city has caused the negative impact to the environment. Groundwater contamination by waste disposal leachate is one of the negative ...

Oleh: Tigor MHL Tobing;Untung Sudarsono;Dodid Murdohardono

Abstraksi : Construction of location of industrial waste disposal has been conducted at Narotog Village, Purwakarta District, but an error during interpretation of engineering geology and hydrogeology data has caused a fatal result. During construction has been found an aquifer at depth 6 m, according to the ...

Oleh: A. Rachmansyah;R. Azzam

Abstraksi : Waste disposal sites have principally an environmental impact and effect to the ecology balance. To protect the environment and to decrease the contamination potential of such sites, a multiple barrier concept should be introduced. One important barrier is the geological barrier to protect the ...

Oleh: Wolfgang Oey;R. Azzam

Abstraksi : Electrokinetics can be utilised to initiate water flow and ion transport through low permeable fine-grained soil, where a common hydraulic flow is not possible. DC current applied to soil induces a water flow (electroosmosis) and transport of ions a (electromigration). Especially for the in situ ...

Oleh: Nanang S. Soetadji;Mulhadiono

Abstraksi : Entering the third Millenium, Indonesia should feel optimistic because of the large natural and human resources it possesses, as reflected in the large petroleum prospects, the available assets of the BUMN (State-Owned Working Body) and the existing markets. In the future, especially for the ...

Oleh: Mu'anam;Djoko Luwarno

Abstraksi : Economic evaluation always needs to be incorporated with exploratory drilling proposal, its calculation requires exploratory drilling total cost as an input. To obtain the most viable and economic value based on the possibility of its objective, depth and drilling time, a simulation can be ...

Oleh: Moch. Ariandi. A S

Abstraksi : There are a lot of theories or methods of Decision making for elected or choose the best supplier from suppliers who give an offer. To find Decision Making solution is not so easy, because it face to the Alternative (suppliers) with their own excess with conflicting from each criteria. PROMETHEE ...

Oleh: Leonard Lisapaly

Abstraksi : An attempt to estimate the interval velocities and the thicknesses of the horizontal earth layers using the least squares method has been done. Using this method, the interval velocities and the thicknesses can be calculated directly without going through the velocity analysis as commonly done in ...

Oleh: Lindy Rotinsulu;Indra Prasetya

Abstraksi : Historically, modelling was used by Geochemists to find out the burial and thermal history of a particular point in a basin by utilizing well data. The burial history gives an idea of what kind of tectonic event has occurred in the past. From this the depositional environment could be constructed ...

Oleh: Hastowidodo

Abstraksi : Problem on water saturation evaluation of shally sand reservoirs has been widely known amongst log analysts. From 1950 up to now, a large number of models relating resistivity and fluid saturations have been proposed, however, there is no one of them can be applied satisfactorily. The main problem ...

Oleh: Cecep Briantoro;Susanto Budi Nugroho;Budi Tamtomo;Joko Harsono

Abstraksi : This paper describes a new method for modeling a reservoir rock for simulation study with limited data, using seismic attributes. The model is representative as validated by material balance and reservoir performance matching. Sopa field, a newly discovered oil reservoir in South Sumatra, ...

Oleh: Budi Brahmantyo;Bandono

Abstraksi : According to the Indonesian Act No. 24/1992 (UU No.24/1992), spatial planning of Indonesian region consecutively follows the hierarchy. This hierarchy begins with national strategic plan (with minimum scale 1:1,000,000), provincial structural plan (minimum scale 1:250,000), general regional plan ...

Oleh: Hasanuddin Z. Abidin;O. K. Suganda;M. A. Kusuma;I. Meilano;M. Gamal;Wimpy S. Tjetjep

Abstraksi : Volcanic eruptions generally are destructive, either for the environment or for the humans living near volcanoes. The losses generated are usually immense and difficult to quantify. Because of the many volcanoes (129 known active volcanoes) and the many people living around these areas, both the ...

Oleh: Harman Setyadi;Ridha Setyawan

Abstraksi : Worldwide mineral exploration is evolving to be more technical in nature as ore deposits become increasing harder to find. A very rapid advance in information technology (IT) over the last decade is now being applied in mineral exploration. One particular area which has benefited greatly from IT ...

Oleh: Sugeng;B. Sulistyo;Lasher AS

Abstraksi : Five types of digital image processing were applied to Landsat TM data for exploration of gold minerals: i.e. Filtering, Principle Component Analysis, Band Ratio Index Vegetation, and False colour. Filtering has been acknowledged a most suitable to lincament identification; Principle Component ...

Oleh: Kris Budiono

Abstraksi : We have used ground-penetrating radar to profile the depth of Quartenary sediments and the bedrock beneath alluvial sediments of Northern part Cirebon (Northern part of West Java Coast) and Pangandaran (Southern part of West Java Coast). In many contamination problems, sedimentological information ...

Oleh: Arif Zardi Dahlius;Gatut S. Adisoma

Abstraksi : This article describes the application of geological information in estimating the potential of mineral resources, i.e. how they are put into a form that allows geologists and mining engineers to determine whether it is economic to mine. Construction of a geological model requires a clean drill ...

Oleh: Iwan Munajat;Nusa Kusuma

Abstraksi : Batu Hijau is an island are copper gold porphyry deposit located in the southwest corner of Sumbawa Island, Indonesia. The deposit contains mineable reserves of 914 million metric tonnes grading 0.525 % copper and 0.403 g/t gold. Mineralized material not in reserve accounts for an additional 580 ...

Oleh: Mega Fatimah Rosana

Abstraksi : Cikidang is one of a number of recently discovered Tertiary volcanic-hosted gold deposits which occur within a one kilometer-long, northeast-trending belt in the central part of Lebak district, West Java, Indonesia. It consists of several steeply dipping quartz veins, namely Cikidang, Barat, Tengah ...

Oleh: Andi Agus Nur

Abstraksi : Fractal method have been know as an alternative method that can describe the geometry of complex natural object. With fractal method, every geometric object and shape have a fractal dimension. The fractal method will be implemented to quantify the pattern of Cu-Au porphyry distribution along ...

Oleh: Said Azis

Abstraksi : Indonesia is the second country in the world for diamond discovery after India which has discovered diamonds in 8 th century BP. Ironically no one of diamond exploration companies has been able to go to the mining state in Indonesia. Based on Quaternary geological point of view, south and ...

Oleh: E. Winarno;T. Darijanto;B. Sulistijo

Abstraksi : Quantification of geological structure is one of factor that requires in ore exploration activity, especially to determine the borehole spacing, location, direction and number of bore. Fault, fold, and deformation parameters are significant factors on forming of deposits genetic model. Its can be ...

Oleh: Tri Endah Utami;Alwin Darmawan;Hermawan

Abstraksi : Serang river has produced several layers of unconsolidated sedimentary rock along the southern side of the river. Some of the layers consist of silt and clay, the others are mainly compounds of marl, limestone, tuffaceous and volcanic ash. The environmental condition for most of brackish swamp ...

Oleh: Hendra Amijaya

Abstraksi : Porosity measurement conducted on some andesite samples show that andesite have different porosity value. The different value of porosity reflected from their textural characteristic, which andesite can be divided into scoriaceous andesite and massive andesite. The scoriaceous andesite have ...

Oleh: Daulat Dermawan N;B. Sulistijo

Abstraksi : Within an open pit system coal mining, geotechnical analysis must be done to understand the stability of the mining dip? The condition of the structural geology, such as faults, fractures, rock layers, and others will influence the dip. However, during this analysis problems are often encountered ...

Oleh: B. Sulistijo

Abstraksi : The geological history study is important input for the civil/mining excavation planning to detect any shallow high horizontal stress. The shallow high horizontal stress will effect the stability of the civil or mining excavations. This paper will discuss a geological history in exacavation. ...

Oleh: Noris Del Bel Belluz;Dave Peters;Rachmat Wirawan;Nigel Pearson;Chuck Brannons

Abstraksi : Drilling underground in the Grasberg dewatering drifts has routinely hit water aquifers with high flow rates and pressures. Two types of holes are used. Pilot holes probe ahead of the tunnel development to intersect aquifers ahead of the face. And dewatering holes dewater rock formations that will ...