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"Analisis cekungan sedimen merupakan tahapan pertama yang berpengaruh terhadap keberhasilan suatu eksplorasi hidrokarbon. Cekungan sedimen pada penelitian adalah Cekungan Kendeng yang merupakan salah satu deposenter utama di Cekungan Jawa Timur. Potensi migas di Cekungan Kendeng juga masih menjadi pertanyaan, apakah memiliki hubungan dengan Cekungan Rembang yang telah terbukti sebagai penghasil migas di bagian utara ataukah migas berasal dari Cekungan Kendeng, hal tersebut terjadi akibat kondisi basement yang sangat dalam sehingga pola struktur yang berkembang pada basement belum dapat dipastikan karena sedimen yang tebal ditambah lagi penampang seismik yang dimiliki kurang baik. Metode Gravitasi yang dibantu data geologi serta penampang seismik yang terbatas, digunakan untuk membuat pemodelan bawah permukaan yang memuat informasi mengenai kedalaman basement, batas horizon formasi dan struktur geologi di lokasi penelitian. Berdasarkan hasil analisa data (Complete Bouguer Anomaly, Analisis Spektrum, First Horizontal Derivative, Second Vertical Derivative, dan Forward modelling), kedalaman basement pada Zona Kendeng lokasi penelitian berkisar 4 km – 5 km pada bagian tengah dan 6 km – 7,5 km pada Cekungan Kendeng bagian timur dan barat lokasi penelitian. Sedangkan kedalaman basement Zona Rembang lebih dangkal dibandingkan Zona Kendeng yaitu berkisar 2,5 km – 5 km. Berdasarkan kurva FHD-SVD serta data geologi, terdapat sesar-sesar naik arah barat-timur yang muncul di permukaan dan keberadaan sesar-sesar normal penyebab keterbentukan Cekungan Kendeng pada bagian basement dan Formasi Ngimbang. Oleh karena itu, metode gravitasi cukup efektif untuk mengidentifikasi basement serta posisi dari struktur geologi dalam pemodelan bawah permukaan

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.Sedimentary basin analysis is the first step that influences the success of hydrocarbon exploration. The sedimentary basin in this study is Kendeng Basin which is one of the main depocenters in the East Java Basin. The oil and gas potential in Kendeng Basin also still has questions, whether it originates from Rembang Basin which has been proven as an oil and gas producer in the north, or comes from Kendeng Basin, this occurs because the basement conditions are very deep so the structural pattern that develops the basement cannot be ascertained because thick sediments and The seismic cross-section does not show good horizon boundaries. The Gravity Method, assisted by geological data and limited seismic cross-sections, is used to create subsurface modeling that contains information about basement depth, horizon boundaries of a formation, and geological structure at the study site. Based on the results of data analysis (Complete Bouguer Anomaly, Spectrum Analysis, First Horizontal Derivative, Second Vertical Derivative, and Forward Modeling), the basement depth in Kendeng Zone ranges from 4 km – 5 km in the middle section and 6 km – 7.5 km in Kendeng Basin east and west of the study site, and the basement depth of the Rembang Zone is shallower than Kendeng Zone, which is around 2.5 km – 5 km. Based on the FHD-SVD curve and geological data, there are reverse fault in a west-east direction that appear on the surface, and there are normal faults that cause the formation of Kendeng Basin in the basement and Ngimbang Formations. Therefore, the gravity method is quite effective in identifying the basement and the position of geological structures in subsurface modeling."

"ABSTRAKPenelitian ini membahas tentang jaringan penolakan terhadap perusahaan tambang di Pegunungan Kendeng Utara, yang terdiri dari beragam aktor dengan latar dan identitas yang berbeda. Berbagai kajian terdahulu tentang gerakan perlawanan petani terhadap perusahaan tambang hanya menguraikan bentuk-bentuk perlawanan petani serta kontribusi beragam aktor, akademisi dan aktivis NGO, dalam mengadvokasi gerakan perlawanan terhadap perusahaan tambang, namun belum menguraikan keterhubungan beragam aktor yang memungkinkan bertahan dan berkembangnya gerakan sosial. Melalui studi kasus terhadap Jaringan Peduli Pegunungan Kendeng JMPPK yang melakukan gerakan perlawanan terhadap rencana penambangan PT SI dan PT SMS, penelitian ini menemukan bahwa JMPPK mengembangkan relasi informal di antara beragam aktor, seperti komunitas Sedulur Sikep, kalangan muslim, akademisi, aktivis NGO, dan berbagai aktor individual, dalam membangun aliansi gerakan sosial. Selain itu, meski terdiri dari beragam aktor, jejaring informal yang terjalin secara intensif mampu membentuk identitas kolektif yang terbingkai dalam framing ldquo;pelindung ibu bumi rdquo; untuk menandai pentingnya melindungi Pegunungan Kendeng Utara dari ancaman pengrusakan akibat penambangan, sehingga gerakan sosial ini mampu mempertahankan militansi penolakan terhadap kehadiran perusahaan semen di Pegunungan Kendeng Utara.

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ABSTRACTThis research discusses anti mining movement networks in North Kendeng Mountains which actually intertwine various actors with different identities and backgrounds. The previous studies of peasant movement and anti mining movement commonly tend to examine the form of peasant movement and the type of actor rsquo s contribution such as scholars and NGO rsquo s activists in advocating and struggling against mining industry. But there is lack of explanation in examining the intertwinement of actors in term of empowering and sustaining social movement. By considering research about Jaringan Peduli Pegunungan Kendeng JMPPK ndash The anti mining networks of Kendeng Mountains which struggles against mining industry of PT Semen Indonesia and PT SMS, this research aims to understand the informal networks of JMPPK combined through Sedulur Sikep, Muslim community, scholars, NGO rsquo s activist, and individual initiatives in developing social movement rsquo s alliance. The network which is intensively interlinked various actors is able to develop collective identity by using the framing of ldquo Pelindung Ibu Bumi The Guard of Mother Earth . rdquo This framing will be identified as the sign of social movement to protect North Kendeng Mountains and the way of anti mining movement members to support the struggles against cement industry. "

"ABSTRACTThis article discusses the narratives of Sedulur Sikep on their recent movement in rejecting cement companies in Central Java. For the Sedulur Sikep with their culturally-distinct traits through their spirituality, their human-nature relationship, as well as their stance toward the authorities, have strongly permeated the contemporary anti-cement movement. This study then perceives Sedulur Sikep as a peasant community that treats land and resources as their medium in expressing spirituality as well as in perpetuating their resistance to the authorities. Therefore, the respective Kendeng Mountains play an important role in building the narratives of the anti-cement movement that iS strongly influenced by Sikep doctrines, and additionally building the meaning behind Sedulur Sikep's environmental movement that is actually struggling forfree access to and utilization of common resources."

"Studi ini melihat bahwa kerusakan lingkungan di Kawasan Karst Pegunungan Kendeng melibatkan kerja sama antara korporasi dengan negara. Hal ini merujuk pada interaksi antara pemerintah dengan korporasi dalam wujud kebijakan yang dapat menguntungkan bagi satu sama lain. Melalui metode systematic literature review dan content analysis, studi ini mengidentifikasi beberapa pola interaksi yang terjadi antara pemerintah dan korporasi, yaitu 1) inisiatif perusahaan dalam memanipulasi AMDAL, 2) Pengabaian terhadap hak atas informasi warga yang terdampak, 3) Intimidasi, 4) Penerbitan izin lingkungan yang bersifat mendesak. Pola-pola ini dilakukan masing untuk melancarkan ekspansi bisnis perusahaan semen yang bernilai fantastis. Di saat yang bersamaan, studi ini menemukan bahwa ekspansi besar-besaran tersebut juga berdampak luas bagi lingkungan. Berpayung pada perspektif green criminology, hasil analisis menunjukkan bahwa kejahatan terhadap lingkungan tidak terbatas pada apa yang dilarang oleh hukum formal. Lebih dari pada itu, kejahatan lingkungan juga dapat terjadi pada tindakan yang diizinkan oleh hukum formal.

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This study examines that environmental damage in the Kendeng Mountains Karst Area involves cooperation between corporations and the state. State-corporate crime refers to the interaction between the government and corporations in the form of policies that can benefit each other. Through systematic literature review and content analysis methods, this study identifies several patterns of interaction that occur between the government and corporations, namely 1) corporate initiatives in manipulating AMDAL, 2) Ignoring the right to information of affected residents, 3) Intimidation, 4) Issuance of urgent environmental permits. These patterns were each carried out to launch the fantastic business expansion of cement companies. At the same time, this study found that the massive expansion also had a wide impact on the environment. Drawing on the perspective of green criminology, the analysis shows that environmental crimes are not limited to what is prohibited by formal law. Rather, environmental crimes can also occur in actions that are permitted by formal law."