Garuda - Garba Rujukan Digital

Perkembangan Fasies Sedimen Formasi Mamberamo Berumur Miosen Akhir-Pliosen di Cekungan Papua Utara Mamengko, David Victor; B.Sendjadja, Yoga; Mulyana, Budi; Panggabean, Hermes; Haryanto, Iyan; Lelono, Eko Budi; Musu, Juwita Trivianty; Panuju, Panuju
Jurnal Geologi dan Sumberdaya Mineral Vol 20, No 1 (2019): Jurnal Geologi dan Sumberdaya Mineral
Publisher : Pusat Survei Geologi

North Papua Basin is a fore arc basin located in northern coastal of Papua Island. This basin filled by Middle-Upper Miocene turbidite sediment and overlied by Upper Miocene – Quarternary clastic sediment. Upper Miocene – Quaternary clastic sediments (Mamberamo Formation) composed by interbedding conglomerate, sandstone and shale as molasses deposit. A detailed stratigraphic study was performed to identify facies and its association of the Mamberamo Formation to that give a new perspective on the characteristics and development of facies succession of Lower Mamberamo Formation. Result shows that the Lower Mamberamo Formation consists of three facies: A) cross bedding sandstone (subtidal), B) heterolothic silty shale (intra-tidal), C) carbonaceous shale (supra-tidal) deposited on Late Miocen to Plio-Pleistocene during centra range orogeny (syn-orogeny) as molasses deposits.Keywords: Fore arc basin, North Papua Basin, Mamberamo Formation, molasse deposits.

ANALISIS KELAYAKAN SUMBERDAYA BATUAN SEBAGAI PELUANG INVESTASI STONE CRUSHER DI DATARAN RENDAH PRAFI Pribowo Angling Kusumo; David Victor Mamengko
Jurnal Teknologi Mineral dan Batubara Vol 18, No 2 (2022): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2022
Publisher : Puslitbang tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol18.No2.2022.1223

Dataran rendah Prafi/Arfak memiliki sumberdaya batuan yang potensial untuk meningkatkan Pendapatan Asli Daerah (PAD) Kabupaten Manokwari. Stone crusher digunakan oleh industri pertambangan skala kecil menengah dalam penyediaan bahan baku batuan dan pasir bagi pembangunan infrastruktur dan jalan di Kabupaten Manokwari, Papua Barat. Metode yang digunakan terdiri dari pengumpulan data primer dan sekunder serta analisis data secara kuantitatif untuk menilai kelayakan investasi stone crusher perusahaan tambang tersebut. Tiga parameter utama yang digunakan dalam penilaian kelayakan investasi adalah NPV (Net Present Value), DPP (Discounted Payback Period), dan IRR (Internal Rate of Return). Hasil analisis diperoleh nilai Net Present Value (NPV) positif sebesar Rp. 57.068.789.003,49, Discounted Payback Period (DPP) selama 2 (dua) tahun 11 (sebelas) bulan dan Internal Rate of Return (IRR) sebesar 40,22%. Hasil analisis kelayakan menunjukkan bahwa investasi stone crusher oleh perusahan pertambangan tersebut adalah layak untuk dioperasikan.

Analisis kesediaan membayar dan kesediaan menerima tata kelola bencana banjir pada daerah aliran Sungai Wosi Frits Edwin Purba; Rully N Wurarah; David Victor Mamengko
Cassowary Vol 6 No 2 (2023): Juni
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v6.i2.137

Wosi is a sub-district located in Manokwari Regency and is a part of the Wosi River Alisan Area (DAS) which has vulnerability to forest cover due to the conversion of settlements and trade centers. Based on this, it is necessary to mitigate the flood disaster structure or carry out flood risk management. One of the government's efforts or policies in flood risk management in Wosi Village is to restore the function of the Wosi watershed through relocation. The Willingness to Pay (WTP) and Willingness to Accept (WTA) approaches related to relocation problems can estimate the WTP and WTA values so that they can optimize the form of policies in reducing flood risk. The results of the analysis show that first, Willingness to Pay flood disaster management through relocation is significantly influenced by education level, income, number of dependents, length of stay and area of residence. Willing to accept a compensation fund of approximately Rp. 32,000,000 to Rp. 506.666,666 and Total WTA is around 1,096,000,000. WTP funds that are willing to be paid are Rp. 82,655,533 (Average WTP) and Rp. 2,479,666,000 (Total value of WTP). The amount of Willingness to Accept is smaller than Willingness to Pay, proving that the paired comparison method can reduce the WTA-WTP gap. In addition, the community's understanding of flood risk reduction in the Wosi watershed is still not optimal, so that the efforts of all parties, especially the local government, in carrying out various policies, plans, and programs that can contribute to risk reduction.

Kajian kerentanan dan kapasitas terhadap ancaman Bencana Tsunami di Kampung Wamesa, Distrik Manokwari Selatan, Kabupaten Manokwari, Provinsi Papua Barat Nur R. Hastuti; Ishak Semuel Erari; David Victor Mamengko; Linda Ernawati Lindongi; Syukur Karamang
Cassowary Vol 6 No 2 (2023): Juni
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v6.i2.144

This study determined the management of disaster risk reduction in Wamesa Village, South Manokwari District, West Papua Province, and evaluated the level of vulnerability, capacity, and risk of the tsunami catastrophe threat. This research is a quantitative and qualitative research that uses analytical descriptive methods that describe the context of vulnerability and capacity in the research location. The primary data were collected through interviews with community development cadres of Wamesa village as well as documentation (mapping) of social, economic, physical and environmental data at the research location referring to the technical research guidelines for tsunami disaster risk study. Secondary data to see potential threats as well as vulnerability and capacity level assessments were obtained from the relevant agencies. The results found that the level of vulnerability and capacity of the Wamesa village community to the tsunami disaster was categorized as high with a vulnerability and capacity index values were 2.21 and 2.54, respectively. Wamesa village, in general, is at intermediate risk of a tsunami disaster, with a total of 0.92 ha of the hamlet's land area being at low risk, 46.13 ha being at moderate risk, and 2.91 ha being at high risk. The management of disaster risk reduction in Wamesa village needs to be strengthened by integrating risk assessment and disaster mitigation activities into village planning and budgeting so it can be sustainable and contributes to reducing vulnerability and increasing the capacity of the Wamesa village against the threat of a tsunami disaster.

ANALISIS KELAYAKAN SUMBERDAYA BATUAN SEBAGAI PELUANG INVESTASI STONE CRUSHER DI DATARAN RENDAH PRAFI Pribowo Angling Kusumo; David Victor Mamengko
Jurnal Teknologi Mineral dan Batubara Vol 18 No 2 (2022): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2022
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol18.No2.2022.1223

Dataran rendah Prafi/Arfak memiliki sumberdaya batuan yang potensial untuk meningkatkan Pendapatan Asli Daerah (PAD) Kabupaten Manokwari. Stone crusher digunakan oleh industri pertambangan skala kecil menengah dalam penyediaan bahan baku batuan dan pasir bagi pembangunan infrastruktur dan jalan di Kabupaten Manokwari, Papua Barat. Metode yang digunakan terdiri dari pengumpulan data primer dan sekunder serta analisis data secara kuantitatif untuk menilai kelayakan investasi stone crusher perusahaan tambang tersebut. Tiga parameter utama yang digunakan dalam penilaian kelayakan investasi adalah NPV (Net Present Value), DPP (Discounted Payback Period), dan IRR (Internal Rate of Return). Hasil analisis diperoleh nilai Net Present Value (NPV) positif sebesar Rp. 57.068.789.003,49, Discounted Payback Period (DPP) selama 2 (dua) tahun 11 (sebelas) bulan dan Internal Rate of Return (IRR) sebesar 40,22%. Hasil analisis kelayakan menunjukkan bahwa investasi stone crusher oleh perusahan pertambangan tersebut adalah layak untuk dioperasikan.

Analisis Kualitas Air Sumur Gali di Kelurahan Arfai Kabupaten Manokwari, Papua Barat David Victor Mamengko; Agnes Dyah Novitasari Lestari; Sabarita Sinuraya; Pribowo Angling Kusumo; Sri Haryono; Dewi Eviane
Environmental Insight Journal Vol 2 No 2 (2026): July
Publisher : Postgraduate Faculty, Yogyakarta Institut of Technology, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37412/eij.v2i2.492

Groundwater quality is an important parameter for determining the initial character of an area before infrastructure development. This study aims to determine the initial condition of groundwater quality around the planned construction site of Building X in the Arfai Village, Manokwari, based on physical, chemical, and microbiological parameters. Groundwater samples were taken from two wells located near the activity site, namely the Financial and Development Supervisory Board well and the Religion Governemntal Offive office well. The samples were analyzed using applicable water quality testing methods and compared with the class 2 river water quality standards in Government Regulation of the Republic of Indonesia Number 22 of 2021 Appendix VI and the drinking water quality standards in Regulation of the Minister of Health of the Republic of Indonesia Number 2 of 2023. For physical parameters, the water temperature was between 29.8–30.0°C, electrical conductivity was 332–580 µS/cm, and the concentrations of TDS, TSS, and turbidity were relatively low. Chemical parameters measured were neutral to slightly alkaline pH (7.16–7.66), BOD <2 mg/L, COD <3 mg/L, and DO of 4.3–5.1 mg/L, indicating low organic matter load. Concentrations of sulfate, nutrients, fluoride, and dissolved metals were relatively low, while oil and grease and total detergent did not indicate significant pollutant input. Microbiological parameters such as fecal coliform and total coliform were also at very low concentrations or below the detection limit. Overall, groundwater quality at both observation points remained in good condition and did not show significant anthropogenic pressure.

Title

Found 6 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 6 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 6 Documents
Search