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Journal : KURVATEK

PENYELIDIKAN GEOLISTRIK MENGGUNAKAN KONFIGURASI SCHLUMBERGER TERHADAP POTENSI AMBLESAN DAERAH PONJONG, GUNUNG KIDUL Rizqi, Al Hussein Flowers; Yudhana, Waskita Murti Bambang
KURVATEK Vol 5 No 2 (2020): November 2020
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v5i2.1769

Abstract

Administratively, the research area is included in Ponjong Subdistrict, Gunung Kidul Regency, Special Region of Yogyakarta. Geographically, it’s located in 07°56’30" - 08°1’0" East Longitude and 110°42’30" - 110°46’0" South Latitude. Several subsidences were occurred in Ponjong, Gunung Kidul in 2018. This study is aimed to determine the subsurface stratigraphy and analyze the depth of rocks layer which has the potential of subsidence (sinkhole) based on the value of rocks resistivity in Ponjong area. Resistivity was measured by geoelectrical method by appllying Schlumberger configuration. As a result, the study areas indicates that the most potential area having sinkhole are composed of lithology of carbonate rocks from Wonosari Formation (crystaline limestone and chalky limestone). Those are in the Asem Lulang village in showed small value of rock resistivity, about 0.1 to <1 (Ωm) at the depth of 15 to 63 meter and more than 123 meter. If it comparated to the village of Sawahombo and Kenteng village, the result showed that relative potential area of subsidence (sinkhole) only at shallow depth and nearly to the surface which is only 10 to 15 meter from surface.Keywords: geoelectric, ponjong, Schlumberger, Sinkhole, Wonosari
LITOLOGI PENYUSUN DAN PERSEBARAN STRUKTUR GEOLOGI PADA BUKIT CUMBRI, KECAMATAN BITING, KABUPATEN PONOROGO, JAWA TIMUR Rizqi, Al Hussein Flowers; Widianto, Fanssyah
KURVATEK Vol 11 No 1 (2026): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v11i1.6414

Abstract

Bukit Cumbri yang terletak di perbatasan Ponorogo dan Wonogiri merupakan punggungan sempit berarah timurlaut–baratdaya yang dikontrol oleh struktur regional dan perbedaan resistensi litologi, namun kajian geologi detailnya masih terbatas. Penelitian ini bertujuan mengidentifikasi litologi penyusun, serta menganalisis mekanisme struktur geologi yang memengaruhi morfologi Bukit Cumbri. Metode yang digunakan meliputi pemetaan geologi, analisis petrografi dan mikropaleontologi, serta analisis stereonet terhadap data kekar dan sesar. Hasil penelitian menunjukkan bahwa litologi terdiri atas batugamping rudstone berumur N16 (Miosen Tengah) dari lingkungan Neritik Tengah, yang ditindih oleh intrusi dangkal trachyte bertekstur porfiritik–vesikuler. Struktur geologi didominasi sesar mendatar mengiri berarah NE–SW, dengan satu lokasi menunjukkan mekanisme reverse left-slip akibat komponen kompresi lokal. Pola struktur tersebut mengontrol orientasi punggungan, lembah linear, dan posisi intrusi.. Temuan penelitian memberikan kontribusi penting dalam memahami evolusi magmatik dan tektonik lokal Ponorogo serta menjadi referensi bagi pengembangan studi geologi dan geowisata di wilayah tersebut.
Co-Authors Abdillah Ahmad, Ghani Afri Tri Kristanto Ahmad, Ghani Abdillah Alansyah, Apriko Yudhan Aprilia, Adinda Arimurti, Dyah Arum Audrey, Vivi Fistina Awaluddin, muhamad Hasyim Bernadeta Subandini Astuti Delvina Syaifira Norma Hani Desie Kurnia Gae Diyoko, Diyoko Elkawi Hawinu, Nodyka Erlandi, Muhammad Fajar, Ari Fatimah Fatimah FATIMAH FATIMAH Febri Anggara Fistina Audrey, Vivi Garnis Wanengcio Uligawati Gil Lodar, Jaden Gracia Apriyani Naibobe Hafidz Sedek Haliza, Audia Shafa Hendri Tri Purnomo Herning Dyah Kusuma Wijayanti Hill Gendoet Hartono Hill Geondoet Hartono Hita Pandita Hita Pandita Ibnu Hibban, Muhammad Iqbal Hidayat Lindung Zalbuin Mase Maming, Haryadi Maurittius Antonius Talla Lamak Mayang Pitaloka Muh Gifaricandrabayu Muhammad Abdul Basith Muhammad Arifai Muhammad Dandy Fachrindra Muhammad Isna Almuzakki Nadhip, Muhammad Nadip, Muhammad Noviardi Noviardi Ogara, Evan Rosyadi Oky Sugarbo Praba Padma Arsyada Qodri, Muhammad Fatih Qoyyibi, Dava Saliham Radhitya, Berwyn Dzaky Rajawali Yudha Pratama Ramadhan, Dimas Rean Devindra Reditya Galang Pamungkas Reynaldo Adhiechandra S reza_krisnandi reza krisnandi Rizqi Prastowo Rusmania Ramadhani, Saviola SANDI KURNIAWAN Setyo Pambudi Sukartono Syamsul Arifin Tedja Trisnaning, Paramitha Tengku Riza Zarzani N Thabita Monica Tupang, Kannaya Timotius Tuska, Robert Tiurma Dewi, Alexandra Sekar Tri Wahyuni Vico Luthfi Ipmawan Vilman Sidik Waskita Bambang Murti Yudhana Waskita Murti Bambang Yudhana Waskita Murti Bambang Yudhana Waskita Wibisono, Dharmawan Catur Widianto, Fanssyah Wijaya, Naufal Arya Winarti Winarti Winarti Yudhana, Waskita Murti Bambang