Heri Syaeful

• Magister
• Researcher at Badan Riset dan Inovasi Nasional

The Mamuju region in West Sulawesi, Indonesia, is a High Background Natural Radiation Area (HBNRA) characterized by a significant enrichment of high field strength elements (HFSEs) and rare earth elements (REEs) within its lateritic deposits. This study investigates the geochemical behavior, mineralogical distribution, and enrichment processes of H...

Rapid development in the use of unmanned aerial vehicles (UAVs) in many applications, such as topographic mapping, agricultural management, marine monitoring, and others, has also brought the radiometric mapping application to this drone-borne application. Before the application, several corrections are performed to the data, including stripping co...

Research of the depositional environment using geological mapping, petrography, gamma-ray (GR) log, palynology, and foraminifera fossils of the Bojongmanik Formation has led to the formation of several different conclusions about the transition to the marine environment, which are attractive to revisit. The expected results of this research are to...

The Pantai Gosong in West Kalimantan has been selected for the NPP site and requires an evaluation of external hazards potential that could affect the safety of the plants. The capable fault and geotechnical hazards are pri- mary siting safety-related criteria and require a thorough assessment. The methods applied in this research are to analyze th...

Tebidah Formation is a 20,000 km wide and 1,000 m thick sedimentary rock in Melawi Basin. The formation in the Ella Hilir area shows the possibility of becoming a uranium deposit host rock based on the environment and physical properties. Geological mapping and radiometric surveys were carried out in the area to identify the uranium contents on the...

Radiometric mapping could play a prominent role in locating the host rock or alteration that leads to gold mineralization. Nevertheless, in low-sulfidation epithermal gold deposits, the radiometric signatures have to be priorly characterized due to their geometry. It is comprised of a small ore vein system within the large alteration zones. The Pon...

Mamuju is an area of high natural radiation in Indonesia with high natural radiation levels (average 613 nSv h⁻¹). Mamuju is anomalous due to its high average ²³⁸U and ²³²Th concentrations of 22,882 and 33,549 Bq kg⁻¹, respectively, in laterite and rock. High natural radionuclide concentrations of ²³⁸U, ²³²Th, and ⁴⁰K have also been reported in soi...

Mamuju region in West Sulawesi, Indonesia, has the highest radiation dose rate of naturally occurring radioactive materials in Indonesia. The high radioactivity in Mamuju is derived from tertiary alkaline volcanic rocks. This research aimed to assess the applicability of reflectance spectroscopy analysis to identify minerals, develop a spectral dat...

Radioactive minerals, especially containing uranium and thorium, can be used as a core element of nuclear fuel. Bangka Island is located in The Southeast Asian Tin Belt where it has a large uranium and thorium potential. The purpose of this study is to delineate distribution zone of uranium and thorium in Bangka Island. The study methods consist of...

Uranium merupakan bahan bakar utama reaktor nuklir yang memiliki energi besar. Uranium dapat dimanfaatkan sebagai bahan bakar reaktor nuklir yang dapat menghasilkan listrik dalam kapasitas yang sangat besar. Nuklir merupakan satu-satunya energi yang terbukti dapat dikembangkan di berbagai kondisi lingkungan dan dapat menghasilkan energi listrik sec...

The government of Indonesia plans to build a nuclear power plant (NPP). Prior to building the NPP, it is necessary to analyze the availability of uranium, the primary nuclear fuel, to develop a sustainable supply strategy. One type of uranium deposit in Indonesia is volcanic, associated with alkaline volcanic rocks. In nature, uranium isotopes are...

In 1974, BATAN conducted a survey to review the potential of radioactive minerals in Harau, West Sumatra. The survey shows that there are radiometric anomalies in several locations in the area. However, the survey has not been able to show the radioactive elements and minerals found in Harau. This study aims to identify and characterize radioactive...

Manual ore body modeling on Remaja Sector, Kalan, West Kalimantan generally takes a long time and is subjective. On the other hand, automatic modeling (implicit modeling) is faster, objective, and equipped with uncertainty factors. This study aimed to analyze the comparison between the geostatistical Sequential Indicator Simulation (SIS) ore body m...

Granitic rocks are widely distributed in Sumatra and surrounding areas. These granitoids are classified into several granite provinces of Southeast Asia with different intrusion processes and specific characteristics. This paper aims to review the intrusion of granitic rocks in Sumatra and describe the opportunities associated with it. Granite rock...

ABSTRAK. Pemerintah Indonesia dalam Peraturan Presiden (Perpres) Nomor 38 Tahun 2018 tentang Rencana Induk Riset Nasional Tahun 2017–2045, menetapkan beberapa bidang utama yang akan menjadi prioritas penelitian nasional, salah satunya adalah bidang energi. Dalam tema riset teknologi kelistrikan berbasis energi baru dan terbarukan rendah/nol karbon...

Uranium deposit in Indonesia was found in almost all Indonesian Archipelago, mainly in Kalimantan, Sulawesi, Sumatera, Papua, Bangka Belitung and Riau islands. Uranium exploration activities started in the 1960s to recent, conducted in many exploration stages. The exploration in prospects area are completed with drilling activities to delineate the...

The exploration of nuclear minerals in Mamuju, West Sulawesi has been started in 2013 by the Center for Nuclear Minerals Technology (CMNT) – Badan Tenaga Nuklir Nasional (BATAN). There is a strong indication of uranium (U) and thorium (Th) minerals occurrences in the location. To follow the exploration result up, a resources assessment is needed. D...

Mamuju Region in West Sulawesi, Indonesia is one of prospect area of uranium/thorium in Indonesia. High radiometric concentrations were located in Adang Volcanic Rocks. This formation is grouped as basaltic to intermediate rock and composed by lava, pyroclastic rocks, and tuff. Regional field radiometric mapping, including radiation dose rates, pot...

In concurrent with the plan to build small experimental power reactor at Serpong site, site specific response spectra evaluation is required to ensure the reactor safety. Site response spectra involved the spectral matching analysis which incorporates the seismic characteristics of the site and the design spectra. This paper presented the prelimina...

One dimensional seismic response analysis on the ground surface of the Non-Commercial Power Reactor (RDNK) site based on the mean uniform hazard spectrum (UHS) and disaggregation analysis has been conducted. The study’s objective was to perform an analysis on site-specific response spectra on the ground surface based on existing mean UHS and disagg...

UNFC application for uranium resources in Eko Remaja and Rabau Sectors, Kalan Area, West Kalimantan

Mamuju is a region of Indonesia with relatively high exposure to natural radiation. Since 2012, Mamuju has been a uranium and thorium exploration area. Several mapping studies of the region have been carried out to depict NORM (naturally occurring radioactive material) areas and areas with uranium anomalies. This paper is the first study to use rad...

Kalan is one of the focus areas for uranium exploration in West Borneo that conducted by BATAN. Situated in the central part of Kalan, previous works in Rabau Hulu Sector consisted of surface geology and radiometric anomaly mapping, trenching, drilling, logging, and conventional uranium resource estimation. Nevertheless, the complete resource estim...

Per the National Nuclear Energy Agency of Indonesia, Mamuju-a region in West Sulawesi-has a relatively high natural radiation dose rate (radioactivity) of 100-2,800 nSv/hour, which is derived from uranium and thorium. This makes Mamuju the main prospecting area for nuclear mineral exploration in Indonesia. The aim of this research was to utilize re...

ABSTRAKSpektroskopi reflektansi merupakan salah satu metode nondestruktif untuk identifikasi mineral dan sebagai dasar dalam analisis pengindraan jauh (indraja) sensor optik. Penelitian ini bertujuan melakukan kajian penerapan spektroskopi reflektansi pada panjang gelombang 350–2.500 nm untuk sampel tanah dan batuan pembawa unsur tanah jarang (rare...

Remaja Sector is one of the potential sectors of U mineralization at Kalan Area, West Kalimantan. Host rock of the mineralization is metasiltstone and schistosed metapelite. The 618 meters long Eko-Remaja Exploration Tunnel was built in 1980 to understand the character of uranium ore in this sector. The U mineralization in Kalan, West Kalimantan is...

Pusat Teknologi Bahan Galian Nuklir (PTBGN), yang telah berdiri sejak tahun 1969, beserta seluruh fasilitas yang ada di dalamnya, merupakan salah satu aset BATAN yang strategis dan krusial untuk pengembangan IPTEK nuklir di Indonesia. Investigasi tapak tempat PTBGN berdiri dilakukan untuk memeroleh data suksesi vertikal, persebaran lateral, jenis,...

Application of GIS using the fuzzy logic method in mineral prospectivity mapping has been widely used for many commodities including for uranium. The method has been proven as an effective tool for expanding exploration targetting as it discovered known deposit correctly. The aim for this work is to locate the prospective area for sandstone-hosted...

STUDI GEOLOGI AWAL UNTUK CALON TAPAK PLTN DI PULAU SINGKEP DAN LINGGA, KEPULAUAN RIAU. Pulau Singkep dan Lingga adalah bagian dari Kepulauan Riau, seperti Pulau Batam, Bintan, Karimun,terletak pada daerah strategis yang dapat menjadi lokasi dikembangkannya perdagangan dan perindustrian. Guna memenuhi kebutuhan teknologi dan listriknya, PLTN merupak...

Formasi Bojongmanik diendapkan pada lingkungan laguna sampai laut, tersusun oleh perselingan batulempung dan batupasir dengan sisipan batugamping. Beberapa kejadian keruntuhan tanah pada batulempung Formasi Bojongmanik mendorong penelitian potensi ekspansi formasi batuan tersebut. Tujuan dilakukannya penelitian ini adalah mengetahui potensi ekspans...

ABSTRAKEksplorasi uranium di daerah Sibolga telah dilakukan sejak tahun 1978 oleh BATAN dan berhasil menemukan mineralisasi uranium tipe batupasir. Penelitian mengenai konsep mineralisasi uranium pada batupasir dan konglomerat di Sektor Aloban, Sibolga, telah dilakukan melalui data 22 titik bor yang menghasilkan penampang geologi, peta sebaran anom...

Formasi Bojongmanik diendapkan pada lingkungan laguna sampai laut, tersusun oleh perselingan batulempung dan batupasir dengan sisipan batugamping. Beberapa kejadian keruntuhan tanah pada batulempung Formasi Bojongmanik mendorong penelitian potensi ekspansi formasi batuan tersebut. Tujuan dilakukannya penelitian ini adalah mengetahui potensi ekspans...

The area of Center for Research in Science and Technology (PUSPIPTEK) Serpong is 460 hectares wide. Most of the area is a Green Open Spaces (RTH). In the line with the growth of research activities, the need for infrastructure and building facilities also increases. As a national strategic facility, it is necessary to design buildings that are stur...

In resources estimation, geostatistics methods have been widely used with the benefit of additional attribute tools to classify resources category. However, inverse distance weighting (IDW) is the only method used previously for estimating the uranium resources in Indonesia. The IDW method provides no additional attribute that could be used to clas...

Unusual phenomenon of radium accumulation in soil is take place in Biak Island. Preliminary field survey delineates the area around Maryendi, Darmapis and Denafi which indicates the high radiation dose from 50 to 4,032 nSv/h. Further observation and measurement of soil profile yield conclusion of high radiation only consists in top most part of soi...

The activity of subsurface material composing site foundation characterization is part of nuclear installation siting study. Characterization conducted by several methods, such as understanding the depositional environment of rock formations. As a segment of depositional environment interpretation method, facies model analysis based on electrofacie...

Eko-Remaja uranium exploration tunnel, Kalan, West Kalimantan is one of the important facilities for uranium deposit research. The tunnel was built in 1980 with a length of 618 meters penetrating Eko Hill on both sides. The rock inside the tunnel is relatively compact, but it has weak zones in some area. Ground supporting is a method used to overco...

Uranium in nature formed in various deposit type, depends on its sources, process, and depositional environments. Uranium occurrence in Sibolga, hosted in sedimentary rocks of Sibolga Formation, is properly potential to develop; nevertheless, the depositional pattern and uranium mineralization process so far had not been recognized. The research ai...

Mamuju is the capital city of West Sulawesi province that has high value of natural radiation dose rate (radioactivity). The specific minerals that expose the radioactivity not determined clearly. The purpose of this study was to determine of specific radioactive minerals and its type of mineralization in Mamuju area. The study was conducted by geo...

IAEA NS-R-3 Year 2003 on Site Evaluation recommend requirement of geological aspect study related to site area safety for Nuclear Power Plant (NPP). Based on above reason it has been done preliminary survey activity for geological aspect in order to decide NPP site interest area in Barelang. The purpose of research is to get an initial review of ge...

ABSTRAK KELAS SOIL DAERAH SEKITAR RENCANA TAPAK REAKTOR DAYA EKSPERIMENTAL (RDE) SERPONG DARI DATA MIKROTREMOR. Karakteristik geologi permukaan memegang peranan penting dalam analisis respon gelombang di suatu wilayah. Sehubungan dengan rencana pembangunan Reaktor Daya Eksperimental (RDE) di Serpong, telah dilakukan pemodelan kondisi bawah permukaa...

Rock mass characterization is required in design of rock opening, which calculation of engineering characters of rock mass become one important parameter toconsider. Lemajung sector is one of prospect area for uranium mining in Kalan, West Kalimantan. Purpose of research is to acquire rock mass characteristicsas basic data for planning the developm...

Pada tahun 2013 dilaksanakan pemboran inti di Sektor Lemajung sebanyak 5 titik dengan kedalaman masing-masing 300 meter. Target pemboran untuk mengetahui dan memverifikasi ekstensi horizontal dan vertikal mineralisasi uranium. Mineralisasi uranium di Lemajung terdapat pada lapisan favorabel metabatulanau dan metapelit sekistosan yang diapit lapisan...

Mamuju has been known to have high radiation dose rate which comes from NORM in rock and soil. Major concern is due to its location which is near inhabitant settlement area. Preliminary research has been done by environmental team which is limited to main access road only, while some remote area has left untouched. The purpose of the research is to...

Final disposal of radioactive waste intended to keep radioactive substances does not released to the environment until the substance activity decreased to the safe level. Storage concept of radioactive waste (RAW) final disposal that will be developed at the area of Puspiptek, Serpong is near surface disposal (NSD). Based on depth, NSD divided on t...