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Dwi Indah Purnamawati, Dwi Indah
Institut Sains & Teknologi AKPRIND Yogyakarta
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering

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AKTIVITAS VULKANISME EKSPLOSIF PENGHASIL FORMASI SEMILIR BAGIAN BAWAH DI DAERAH JETIS IMOGIRI Mulyaningsih, Sri; Husadani, Y T; Umboro, P A; Sanjoto, Siwi; Purnamawati, Dwi Indah
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 4 No 1 Agustus 2011
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2186.868 KB) | DOI: 10.34151/technoscientia.v4i1.489

Abstract

The widely exposed of volcanic rocks within western part of Central Java-DIY Southern Mountain areas, indicates that volcanic activities had influenced geology of this area. Volcanic-stratigraphic study finds pumiceus rocks, tuff and co-ignimbrite breccias that can be described as primery volcanic rocks at study areas. Those volcanic rocks were erupted explosively followed by collapsing strato cone and forming new caldera. The associate of volcanic rocks with co-ignimbrite breccias, indicates that the central eruption was not far from the outcropes. Shallow intrusive rocks of andecites bearing hornblendes that exposed at the highest cone shape geomorphology of Gunung Gede, south to southwest Sudimoro, might be as the central eruptions.
TINJAUAN DAMPAK BANJIR LAHAR KALI PUTIH, KABUPATEN MAGELANG PASCA ERUPSI MERAPI 2010 Aisyah, Nur; Purnamawati, Dwi Indah
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 1 Agustus 2012
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (628.524 KB) | DOI: 10.34151/technoscientia.v5i1.507

Abstract

Potency of Merapi lahars in Putih River, Magelang Regency, is described in terms of management of material deposition. The methode is carried out with the description of material, determination of lahars forming factors, and the geology environmental. Merapi eruption on 2010 has producted volcanic materials about 130 million metre cubic, spread in the upper river of Merapi Volcano as Gendol River, Apu River, Trising River, Senowo River, Lamat River, Putih River, Bebeng River, Krasak River, Bedog River, Boyong River, Kuning River, Opak River and Woro River. One of the rivers in Magelang regency known Putih River, has material volcanic as much as 8,2 million metre cubic. Lahars which to is grouped materials clasification like sands and rocks varying in size. While impact of lahars which must to beware are debris avalanche, over topping, and flood. Therefore in order to minimize the abuse authority, disaster management covers prevention, emergency response, and rehabilitation after disaster is necessary.
GENESA DAN KELIMPAHAN MINERAL LOGAM EMAS, DAN ASOSIASINYA BERDASARKAN ANALISIS PETROGRAFI, DAN ATOMIC ABSORBTION SPECTROPHOTOMETRY (AAS), DI DAERAH SANGON, KABUPATEN KULONPROGO, PROPINSI DIY Purnamawati, Dwi Indah; Tapilatu, Stiwinder Renata
Jurnal Teknologi Vol 5 No 2 (2012): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Abstract

Tujuan dari penelitian ini adalah untuk mengetahui cara terbentuknya serta kelimpahan mineral logam emas (Au) dan asosiasinya, dari analisis petrografi dan analisis Atomic Absorbtion Spectrophotometry (AAS). Metode penelitian yang dipakai adalah dengan cara penggabungan data lapangan, dan analisis laboratorium dan pengambilan data sekunder. Analisis petrografi dilakukan untuk mengetahui genesa/pembentukan mineral-mineral logam emas dan asosiasinya. Berdasarkan dari hasil analisis petrografi, menunjukkan bahwa mineralisasi emas dan asosiasinya yang terdapat di Daerah Sangon, Kulonprogo, Daerah Istimewa Yogyakarta, menghasilkan alterasi bertipe propilitik. Sedangkan berdasarkan hasil analisis Atomic Absorbtion Spectrophotometry (AAS), menunjukkan bahwa kandungan/kadar mineral logam Au memiliki kandungan/kadar paling rendah dibandingkan dengan asosiasi mineral logam lainnya. Kadar Au hanya 1,274 ppm atau 0,0001274%.
AKTIVITAS VULKANISME EKSPLOSIF PENGHASIL FORMASI SEMILIR BAGIAN BAWAH DI DAERAH JETIS IMOGIRI Mulyaningsih, Sri; Husadani, Y T; Umboro, P A; Sanjoto, Siwi; Purnamawati, Dwi Indah
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 4 No 1 Agustus 2011
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v4i1.489

Abstract

The widely exposed of volcanic rocks within western part of Central Java-DIY Southern Mountain areas, indicates that volcanic activities had influenced geology of this area. Volcanic-stratigraphic study finds pumiceus rocks, tuff and co-ignimbrite breccias that can be described as primery volcanic rocks at study areas. Those volcanic rocks were erupted explosively followed by collapsing strato cone and forming new caldera. The associate of volcanic rocks with co-ignimbrite breccias, indicates that the central eruption was not far from the outcropes. Shallow intrusive rocks of andecites bearing hornblendes that exposed at the highest cone shape geomorphology of Gunung Gede, south to southwest Sudimoro, might be as the central eruptions.
TINJAUAN DAMPAK BANJIR LAHAR KALI PUTIH, KABUPATEN MAGELANG PASCA ERUPSI MERAPI 2010 Aisyah, Nur; Purnamawati, Dwi Indah
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 1 Agustus 2012
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i1.507

Abstract

Potency of Merapi lahars in Putih River, Magelang Regency, is described in terms of management of material deposition. The methode is carried out with the description of material, determination of lahars forming factors, and the geology environmental. Merapi eruption on 2010 has producted volcanic materials about 130 million metre cubic, spread in the upper river of Merapi Volcano as Gendol River, Apu River, Trising River, Senowo River, Lamat River, Putih River, Bebeng River, Krasak River, Bedog River, Boyong River, Kuning River, Opak River and Woro River. One of the rivers in Magelang regency known Putih River, has material volcanic as much as 8,2 million metre cubic. Lahars which to is grouped materials clasification like sands and rocks varying in size. While impact of lahars which must to beware are debris avalanche, over topping, and flood. Therefore in order to minimize the abuse authority, disaster management covers prevention, emergency response, and rehabilitation after disaster is necessary.
ANALISIS KUALITAS INTRUSI ANDESIT SEBAGAI BAHAN BANGUNAN BERDASARKAN SIFAT KETEKNIKAN DI DAERAH BEJI, KECAMATAN UNGARAN TIMUR, KABUPATEN SEMARANG, JAWA TENGAH Retongga, Nofrohu; Purnamawati, Dwi Indah; Rakhman, Arie Noor
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 13 No 2 Februari 2021
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

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Abstract

This study aims to identify the quality of andesite intrusive rocks as a building material. The research location is in the Beji area, East Ungaran District, Semarang Regency, Central Java Province. Analysis of rock quality using data from the test results of engineering and petrographic properties. The andesite studied is an intrusion into basalt. Based on the quality standard requirements for natural stone for buildings (SNI 03-0394-1989) these rocks can be mined for building materials, especially medium to heavy building foundations (1,150.040 -1,421.621 kg/cm2). The middle andesite has a higher strength than the lower andesite. The strength of the rock is supported by resistant minerals in the form of plagioclase, which dominates up to 35%. However, in the andesite body getting down, olivine tends to decrease by 5%. The weathering of these minerals is influenced by the condition of the water in the rock where the water content is 0.391 to 0.412%. In water-saturated conditions, the degree of saturation of the lower rock can reach 100%, exceeding the rock above, 87.5%. The strength of the rock at the bottom is lower, making the slope potentially easy to collapse when the mining method is started from the bottom, especially the excavation is carried out on steep vertical slopes.
ANALISIS KUALITAS INTRUSI ANDESIT SEBAGAI BAHAN BANGUNAN BERDASARKAN SIFAT KETEKNIKAN DI DAERAH BEJI, KECAMATAN UNGARAN TIMUR, KABUPATEN SEMARANG, JAWA TENGAH Retongga, Nofrohu; Purnamawati, Dwi Indah; Rakhman, Arie Noor
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 13 No 2 Februari 2021
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to identify the quality of andesite intrusive rocks as a building material. The research location is in the Beji area, East Ungaran District, Semarang Regency, Central Java Province. Analysis of rock quality using data from the test results of engineering and petrographic properties. The andesite studied is an intrusion into basalt. Based on the quality standard requirements for natural stone for buildings (SNI 03-0394-1989) these rocks can be mined for building materials, especially medium to heavy building foundations (1,150.040 -1,421.621 kg/cm2). The middle andesite has a higher strength than the lower andesite. The strength of the rock is supported by resistant minerals in the form of plagioclase, which dominates up to 35%. However, in the andesite body getting down, olivine tends to decrease by 5%. The weathering of these minerals is influenced by the condition of the water in the rock where the water content is 0.391 to 0.412%. In water-saturated conditions, the degree of saturation of the lower rock can reach 100%, exceeding the rock above, 87.5%. The strength of the rock at the bottom is lower, making the slope potentially easy to collapse when the mining method is started from the bottom, especially the excavation is carried out on steep vertical slopes.
IDENTIFIKASI POTENSI GERAKAN MASSA BERDASARKAN TINGKAT KERAWANAN DI DESA KEDUNGBENDO DAN SEKITARNYA, KECAMATAN ARJOSARI KABUPATEN PACITAN PROVINSI JAWA TIMUR Purnamawati, Dwi Indah; Khosbi, Muhammad
Jurnal Teknologi Vol 12 No 1 (2019): Jurnal Teknologi
Publisher : Jurnal Teknologi, Fakultas Teknologi Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

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Abstract

Desa Kedungbendo Kecamatan Arjosari, Kabupaten Pacitan, Jawa Timur didominasi sebagai daerah permukiman yang padat, tetapi seringkali terjadi bencana gerakan massa. Tujuan penelitian untuk mengidentifikasi gerakan massa berdasarkan tingkat kerawanan dalam bentuk peta zonasi gerakan massa yang dapat digunakan sebagai data mitigasi. Metodologi yang digunakan adalah penelitian deskripsi kuantitatif, digabungkan dengan data lapangan dengan memperhatikan data sekunder. Daerah Desa Kedungbendo dan sekitarnya, termasuk ke dalam daerah rawan gerakan massa dengan tingkat sedang dengan elevasi kurang < 500 mdpl. Mitigasi bencana yang dilakukan berupa sosialisasi tentang bencana gerakan massa, pembuatan peta zonasi gerakan massa, usulan perubahan penggunaan tata guna lahan, agar Desa Kedongbendo dapat diminimalisir saat bencana terjadi.
TINJAUAN GEOLOGI LINGKUNGAN TERHADAP PENGARUH REMBESAN AIR ASAM KAWAH IJEN DI DAS DAN MATA AIR BANYUPAHIT DESA KALIANYAR KEC. SEMPOL KAB. BONDOWOSO PROP. JAWA TIMUR I Gede Arya Perdana; Dwi Indah Purnamawati
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 2 Februari 2017
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.815 KB) | DOI: 10.34151/technoscientia.v9i2.140

Abstract

The purpose of this research is to know the impacts of environmental pollution of Ijen Crater water in Banyupahit watershed such as health and environmental impacts and to determine the quality of river water and springs in the Banyupahit waterspring, Kalianyar village, Sempol District, Bondowoso Regency, East Java Province. The method of this research conducted by the authors is a field study with direct observation in the field as well as library studies and related references related to the title of the seminar. Data analysis and discussion of this research using chemical analysis approach in the form of elements of pH, Clˉ, SO4ˉ and Fˉ taken on two water samples in the study area. The result of the research, it can be concluded that Banyupahit watershed is not feasible to be used because it has a very acidic water and exceeds the maximum permitted according to the standard of Water Quality Standard according to Government Regulation No. 82/2001 on Water Quality Management and Pollution Control Water Class 1. However, from the analysis on the sample of the springs it can be concluded that the springs downstream of the Banyupahit River can be used for clean water because it does not exceed the maximum quality limit in accordance with Ministry of Health Regulation No. 416/MENKES /PER/IX/1990. Based on the results of the research, it is expected that the people around do not use river water for purposes such as bathing, washing and drinking water consumption because this is very dangerous for health. While the environmental impact caused by acid water along the river basin of Banyupahit is in the form of non-living or not the development of animals around the river such as fish.
Fasiesturbidit Formasi Halang (Studi Kasus Daerah Cinanas dan Sekitarnya, Kecamatan Bantarkawung, Kabupaten Brebes, Jawa Tengah) Emeliano Maria Gusmão de Oliveira; Miftahussalam; Dwi Indah Purnamawati
Jurnal Syntax Admiration Vol. 3 No. 2 (2022): Jurnal Syntax Admiration
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jsa.v3i2.387

Abstract

Pemahaman batuan sedimen turbidit laut dalam sangat penting berkaitan dengan penentuan satuan geometri reservoir. Permasalahan yang muncul dalam geometri batuan sedimen turbidit ini sangat kompleks dan bervariasi serta keberadaanya bergantung pada bagaimana, kapan dan jenis lingkungan. Di Jawa Tengah sebaran batuan sedimen turbidit Formasi Halang sangat luas dan dipandang perlu dilakukan pengamatan asosiasi fasiesnya. Dalam studi ini dibahas mengenai fasies turbidit Formasi Halang di daerah Cinanas. Metode yang digunakan untuk menganalisis fasies turbidit adalah pengukuran penampang stratigrafi dan pengamatan karakter litofasiesnya untuk mengetahui lingkungan pengendapan/fasiesnya. Singkapan Formasi Halang di daerah Cinanas didominasi oleh perselingan batupasir dan batulempung. Berdasarkan pengamatan fasies turbiditnya, Formasi Halang di daerah Cinanas diendapkan pada kipas bawah laut bagian tengah (midfan) atau lebih tepatnya pada smooth to channeled portion of suprafan lobes menuju smooth to channeled portion of suprafan lobes on midfan, yang dikarenakan oleh adanya proses progradasi
Co-Authors Andriano Dwichandra Arie Noor Rakhman Emeliano Maria Gusmão de Oliveira Husadani, Y T Husadani, Y T I Gede Arya Perdana I Putu Putrawiyanta Khosbi, Muhammad Miftahussalam Miftahussalam _ Muhammad Rivai Mulyaningsih, Sri Nofrohu Retongga Nur Aisyah Rani Trisdawati Rindhan Affrizal Sanjoto, Siwi Sanjoto, Siwi Sri Mulyaningsih Stiwinder Renata Tapilatu, Stiwinder Renata Sylvianova Magdalena Umboro, P A Umboro, P A Wiloso, Danis Agoes