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APLIKASI FOTOGRAMETRI PADA REKAHAN ALAMI BATUAN DASAR GRANITIK DAERAH MUARO SILOKEK, SUMATERA BARAT Galang Fahmi Maulana; Muhammad Burhannudinnur; Wildan Tri Koesmawardani
Journal of Geoscience Engineering & Energy (JOGEE) VOLUME 2, NOMOR 1, FEBRUARI 2021
Publisher : Universitas trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1695.9 KB) | DOI: 10.25105/jogee.v2i1.8926

Abstract

Daerah penelitian berlokasi di Sungai Indragiti, Daerah Muaro Silokek, Kabupaten Sijunjung, Provinsi Sumatera Barat. Tujuan ini digunakan untuk mengetahui orientasi rekahan alami dari data Digital Outcrop Model (DOM). Pengambilan data Digital Outcrop Model (DOM) menggunakan metode fotogrametri menggunakan drone, untuk menganalisis rekahan alami dengan skala makro. Interpretasi rekahan pada Digital Outcrop Model (DOM) digunakan untuk mengetahui domain struktur pada daerah penelitian. Hasil interpretasi rekahan alami, terdapat tiga domain struktur yang memiliki orientasi utara baratlaut-selatan tenggara, selatan timurlaut-barat baratdaya, dan timurlaut-baratdaya. Domain struktur yang terbentuk merupakan rekahan yang terbentuk akibat sesar mendatar menganan yang berorientasi tenggara-baratlaut berdasarkan sistem riedel.
Pemanfaatan Minyak Jelantah Untuk Pembuatan Sabun Batang Bagi Anggota Karang Taruna Duri Pulo, Kecamatan Gambir, Jakarta Pusat Pauhesti Pauhesti; Widia Yanti; Puri Wijayanti; Wildan Tri Koesmawardani; Gabey Jane
Abdimas Universal Vol. 4 No. 2 (2022): Oktober
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Balikpapan (LPPM UNIBA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/abdimasuniversal.v4i2.228

Abstract

The amount of used cooking oil waste is thrown into the sewer, which over time will compress the sewer and can also pollute the environment. Therefore, it would be good if this used cooking oil is further processed into bar soap that can be used to wash clothes or other kitchenware. The process of making this bar soap uses a cold process, which does not use heating (stove). the chemical used is NaOH. The first stage is the purification of crude oil. Purification is done by soaking charcoal in used cooking oil, for about two days, then the used cooking oil is filtered. This purification does not remove the cloudy color of the used cooking oil, but the odor and turbid color of the used cooking oil is reduced. Then the purified used cooking oil is mixed into the lye, which is a mixture of water and NaOH. Then stir to mix until the solution is slightly thickened like the consistency of liquid soap. Then the mixture is put into a mold made of silicon, after 24 hours or after the soap is solid, the soap can be removed from the mold. This soap cannot be used yet, because it requires a curing process, which is a waiting time phase after solid soap, approximately 45 days. After going through the curing process, leaving it in the open air to ensure the water content evaporates well and the pH of the soap is normal. The solid soap produced from this training is able to clean the dirt on cooking utensils and can also be used as a clothes wash, and does not itch on the skin.
The Determination of Kesongo Mud Volcano System Zone Using Seismic Interval Velocity at Potential Overpressure in The Tawun Formation, “F” Field, NE Java Basin Muhammad Burhannudinnur; Wildan Tri Koesmawardani
Aceh International Journal of Science and Technology Vol 10, No 3 (2021): December 2021
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1439.122 KB) | DOI: 10.13170/aijst.10.3.23649

Abstract

The Mud Volcano System (SMV) is an interesting topic, especially the relatively shallow oil and gas basin in North East Java. The Tawun Formation is an alternating layer of claystone that is quite thick. It has been confirmed in several oil and gas fields as a potential layer of a mud volcano system, specifically the Kesongo Mud Volcano System. The existence of this system is a challenge to further exploration; therefore, zoning is essential. The data used in this research were interval velocity cubes which were re-picked in each of the two bin sizes (2x25m) as the primary data. The well and velocity data were performed to determine the deviation from the Normal Compaction Trend (NCT). Furthermore, the seismic interval was confirmed with drilling data such as mud log and mud weight. The value of preliminary pore pressure was also derived from interval velocity using Eaton Equation which is confirmed by mud weight data. The Zoning of the Mud Volcano System was carried out via a depth slice at 3D seismic intervals. The results showed that the Tawun Formation has a Mud Volcano System prone zone at a depth of 204 m and decreases in geometry as the depth increases. Meanwhile, the OP-1 zone was the safest zone for exploration, followed by OP-2 but requires passage through the Kesongo Mud Volcano System zone of 1000 m thickness.
KARAKTERISTIK BATUGAMPING FORMASI WONOSARI DI DAERAH BUNDER DAN SEKITARNYA, WONOSARI,GUNUNGKIDUL D.I.Y : THE CHARACTERISTICS OF THE WONOSARI FORMATION LIMESTONE IN THE BUNDER AREA AND ITS SURROUNDINGS, WONOSARI, GUNUNGKIDUL, D.I.Y Hafiz, Surya Darma; Moehammad Ali Jambak; Budi Wijaya; Mira Meirawaty; Cahyaningratri Prima Ryandhani; Wildan Tri Koesmawardani; Nuryana, Suherman Dwi; Zefanya, Oliver Enrico
Journal of Geoscience Engineering and Energy VOLUME 4, NOMOR 2, AGUSTUS 2023
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jogee.v4i2.17301

Abstract

Studi ini bertujuan untuk mengkaji karakteristik  batugamping Formasi Wonosari di Desa Bunder, Kecamatan Ponjong, Kabupaten Gunungkidul, DIY. Analisis litologi mengungkapkan bahwa batuan wackstone berwarna coklat dengan tekstur bioklastik, terdiri dari sekitar 75% lumpur karbonat/mikrit dan 25% fragmen butiran. Kehadiran fosil meliputi foraminifera planktonik dan bentos, dengan fragmen bioklas yang utuh mengalami proses mikritisasi dan neomorfisme menjadi kalsit spar yang jernih. Pengamatan lapangan menunjukkan adanya singkapan batuan yang segar maupun lapuk, dengan jurus lapisan berkisar antara N100° E hingga 105° E dan kemiringan rata-rata sekitar 4° - 8°. Ketebalan perkiraan formasi ini adalah sekitar 150-200 m. Berdasarkan analisis mikropaleontologi, spesies foraminifera planktonik dominan seperti Orbulina universa dan Sphaerodinella subdehiscens mengindikasikan rentang umur antara N10-N18. Satuan ini menunjukkan adanya struktur sedimen berlapis baik dan struktur masif gelegar, menandakan pengendapan di lingkungan yang tenang dengan energi rendah. Penelitian ini memberikan pemahaman lebih baik tentang litologi, lingkungan pengendapan, dan perkiraan umur Formasi Wonosari di wilayah penelitian. This study focuses on the characteristic of the Wonosari Formation carbonate rocks in Bunder Village, Ponjong Sub-district, Gunungkidul Regency, DIY. The lithological analysis reveals brown-colored wackstone with a bioclastic texture, consisting of 75% mud-supported carbonate/micrite and 25% grain fragments. The fossil assemblage includes planktonic and benthic foraminifera, with intact bioclastic fragments exhibiting signs of micritization and subsequent neomorphism into clear calcite spar. Field observations indicate fresh and weathered outcrops with a bedding strike ranging from N100° E to 105° E and an average dip angle of 4° - 8°. The estimated thickness of the formation is around 150-200 m. Based on micropaleontological analysis, dominant planktonic foraminifera species such as Orbulina universa and Sphaerodinella subdehiscens suggest an age range of N10-N18. The unit displays well-layered sedimentary structures and occasional massive structures, indicating deposition in a low-energy, relatively calm environment. This research contributes to a better understanding of the lithology, depositional environment, and age estimation of the Wonosari Formation in the study area..