![iaea tecdoc 1363 iaea tecdoc 1363](https://0.academia-photos.com/attachment_thumbnails/48279158/mini_magick20190204-9433-19qlzk4.png)
![iaea tecdoc 1363 iaea tecdoc 1363](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-021-81546-4/MediaObjects/41598_2021_81546_Fig1_HTML.png)
Gravity and magnetic data show the occurence of the basement undulation in the direction of north to south. Drilling data from three locations in this area, show that the Pre-Tertiary sediments underlay this area. Tectonic process of two major plates, Australian Continent from the south and Pacific Plate from the northeast formed the Papua Central Ranges, whereas the Pre-Tertiary sediments became outcroped ( figure 3). Regional geology shows that this area is covered by thick Pre-Tertiary to Quarternary sediments (Dow, et al, 1986, Sukamto, et al, 1996). This area is covered by alluvial sediment and most part of it as a swampy area and makes the ground survey became difficult. Geologicaly the survey area form as part of Arafura Platform that is included inside the North Australian Continent (Dow, et al, 1986). Intan Angkasa Air Service and GPX Surveys was responsible for the data acquisition and processing of the airborne magnetic and radiometric data. The survey was flown by using two Piper PA 31-350 Chieftain air-crafts owned by PT. This project was funded by the Indonesian Government under the APBN of 2010 fiscal year and took about 5 months of field work that was commenced from September 2010 and finished on January 2011. Topographic feature of conducted 2010 survey as shown on digital terrain model (DTM) in figure 2. 1), covering eight sheets of 1:250,000 topographic map. This area is located in the southern part of Papua ( Fig. The first phase of the HRAGSP covered an area of approximately of 135,522 sq km on a lowland of Arafura Plat-form. Furthermore, this HRAGSP through the Geological Agency (GA), is planned as systematic geophysical mapping project to conduct a regional airborne geomagnetic and radiometric surveys of the whole of Indonesian territory. The Centre for Geological Survey (CGS), of the Geological Agency (GA), Ministry of Energy and Mineral Resources, Republic of Indonesia, has conducted the High Resolution Airborne Geophysical Survey Project (HRAGSP) in Papua, Indonesia for the first time. High Resolution Airborne Geophysical Survey, Phase 1 Papua, Arafura Platform