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All Journal Buletin Sumber Daya Geologi Jurnal GEOSAPTA Dharma Bakti Industrial Research Workshop and National Seminar
Asmoro Widagdo
Universitas Jenderal soedirman
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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KONTROL STRUKTUR GEOLOGI TERHADAP KEMUNCULAN FORMASI NANGGULAN DI DAERAH KECAMATAN NAGGULAN KABUPATEN KULON PROGO, YOGYAKARTA Asmoro Widagdo; Subagyo Pramumijoyo; Agung Harijoko
Geosapta Vol 6, No 2 (2020): Juli 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jg.v6i2.8282

Abstract

Batuan tua berumur Eosen tidak banyak tersingkap di Pulau Jawa. Salah satu lokasi singkapan batuan Paleogen ini berada di daerah Pegunungan Kulon Progo. Batuan ini adalah Formasi Nanggulan yang sangat dikenal keberadaanya di sisi timur Pegunungan Kulon Progo. Bagaimana batuan tua ini tersingkap diantara batuan yang lebih muda berumur Oligosen dan Miosen merupakan masalah yang akan dikaji dalam penelitian ini.Penelititan terhadap upaya menjelaskan kemunculan Formasi naggulan telah diakukan dengan serangkaian metode penelitia geologi. Metode yang digunakan dalam penelitian ini adalah melalui kajian referensi dari penelitian terdahulu mengenai Pegunungan Kulon Progo, pengamatan citra daerah Kulon Progo, pengamatan langsung tubuh batuan Eosen di lapangan serta pengukuran struktur sesar maupun kekar yang ada di lapangan. Pengukuran unsur-unsur struktur geologi digunakan dalam mengetahui struktur utama dan gaya pembentuk struktur pada batuan Formasi Nanggulan yang berumur Paleogen dan batuan di sekitarnya yang berumur Neogen.Kemunculan batuan Formasi Nanggulan yang sangat tua di daerah Naggulan dikontrol oleh struktur geologi sesar naik yang berarah timurlaut-baratdaya (NE-SW) akibat gaya utama berarah baratlaut-tenggara. Sesar ini membentuk struktur sekunder berupa sesar dextral, sesar sinistral dan lipatan. Sesar sinistral berkembang di selatan menciptakan kontak batuan Nanggulan dengan batugamping Formasi Sentolo yang berumur Miosen Akhir. Sesar dextral berkembang di utara menciptakan kontak batuan Formasi Nanggulan dengan batuan vulkanik Oligosen dan batugamping Formasi Sentolo.  Lipatan antiklin terbentuk pada Formasi Nanggulan. Sesar naik terbentuk pada batuan vulkanik Formasi Kebo Butak. Kata-kata kunci: Struktur geologi,  sesar naik, sinistral, dekstral, lipatan
SOSIALISASI ANALISIS PENYEBAB BENCANA LONGSOR DESA SIRAU, KARANGMONCOL, PURBALINGGA Sachrul Iswahyudi; Asmoro Widagdo; FX Anjar Tri Laksono
DHARMA BAKTI Dharma Bakti- Vol 4 No 1 - April 2021
Publisher : LPPM IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/dharma.v4i1.3496

Abstract

In the rainy season, land movement disasters are common in vulnerable areas. InNovember 2020, there was a landslide disaster in Sirau Village, Purbalingga. Thisphenomenon needs to be continuously informed to the public parties in order to minimizethe risks and losses as little as possible. This community service activity aims to providesocialization and understanding to government officials and the community about landslidesat the location. These activities are using methods of literature study, field surveys and directdiscussion in the field. The landslide disaster in Sirau Village is interpreted as being causedby several factors, including: morphology, lithology, geological structure, weathering,rainfall, and land use
Kontrol Struktur Geologi Terhadap Gerakan Tanah dan Batuan pada Batuan Formasi Halang di Daerah Sirau, Kecamatan Karang Moncol-Purbalingga, Propinsi Jawa Tengah Asmoro Widagdo; Sachrul Iswahyudi; Rachmad Setijadi; Indra Permanajati; Anjar Tilaksono
Prosiding Industrial Research Workshop and National Seminar Vol 12 (2021): Prosiding 12th Industrial Research Workshop and National Seminar (IRWNS)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.036 KB)

Abstract

Kontrol Struktur Geologi Terhadap Gerakan Tanah dan Batuan pada Batuan Formasi Halang di Daerah Sirau, Kecamatan Karang Moncol-Purbalingga, Propinsi Jawa Tengah
POLA STRUKTUR GEOLOGI PEMBENTUK ZONA MINERALISASI DI BUKIT RANDU, KECAMATAN SELOGIRI, KABUPATEN WONOGIRI, JAWA TENGAH: GEOLOGICAL STRUCTURE PATTERNS FOR THE MINERALIZATION ZONE IN BUKIT RANDU, SELOGIRI DISTRICT, WONOGIRI REGENCY, CENTRAL JAVA Asmoro Widagdo; Gentur Waluyo; Rachmad Setijadi; Mochammad Aziz; Huzaely Latief Sunan
Buletin Sumber Daya Geologi Vol. 17 No. 2 (2022): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v17i2.351

Abstract

Mineralization in the Bukit Randu area and its surroundings is formed by geological structures to be investigated.This study uses data on fault striation, quartz vein plane and quartz veinlet plane. This study aims to determine the main structural pattern forming the mineralization zone. This research is useful for determining the geological structure model in the Randu Hill area. The research method was carried out through data collection in the field and analysis in the laboratory. Field data collection includes striation data measurement, quartz vein plane measurement, quartz veinlet plane and quartz vein sampling. Laboratory analysis includes stereographic analysis of striation and rose diagram analysis of vein and veinlet measurement data, and vein polishing mineragraphy. Quartz vein and veinlet mineralization in the Randu Hill area is controlled by a right lateral strike-slip fault trending northwest-southeast and a north-south normal fault. This mineralized zone is a north-south trending transtension zone due to en-enchelon right stepping of right lateral strike-slip fault. Precious metal minerals are located in the north-south trending veins in the same direction as the regional compression stress and normal faults.
Co-Authors Agung Harijoko Anjar Tilaksono FX Anjar Tri Laksono Gentur Waluyo Huzaely Latief Sunan Indra Permanajati, Indra Mochammad Aziz Rachmad Setijadi Sachrul Iswahyudi Subagyo Pramumijoyo