1,720,975 research outputs found
Tipe, Lingkungan Dan Sejarah Diagenesis Batugamping Buliide Gorontalo Berdasarkan Analisis Petrografi
Full text linkPenyebaran batugamping secara geologi yang berada di bagian tengah Cekungan Limboto menjadi daya tarik untuk penelitian mengenai tipe, lingkungan dan sejarah proses diagenesis batugamping. Penelitian difokuskan di Daerah Buliide Kota Gorontalo yang berada di bagian selatan Danau Limboto. Penelitian ini menjadi menarik karena baru pertama kali dilakukan. Tujuan penelitian ini ada tiga yakni mengetahui tipe diagenesis, lingkungan diagenesis dan sejarah proses diagenesis batugamping Buliide. Ketiga tujuan penelitian tersebut akan dicapai melalui dua metode penelitian yakni survei lapangan berupa analisis petrologi dan analisis laboratorium berupa analisis petrografi. Hasil penelitian menunjukan nama batugamping Buliide adalah coralline floatstone. Tipe proses diagenesis yang terjadi ada lima yakni sementasi, pelarutan, penggantian, mikritisasi dan rekristalisasi. Lingkungan diagenesa batugamping Buliide terdiri dari zona marine phreatic, zona vadose dan zona freshwater phreatic. Sejarah proses diagenesis batugamping Buliide dapat dibagi menjadi tiga tahapan yakni tahapan pertama terjadi di zona marine phreatic, tahapan kedua zona freshwater phreatic dan tahapan ketiga zona vadose dengan tipe diagenesis berbeda-beda
Extentional Fault Pada Daerah Compressive Tectonic Zone Sebagai Batas Cekungan Di Jawa Tengah Selatan
Full text linkThe extensional structure as a normal fault could be found in many places at the southern part of Java compressive tectonic regime. The research area is in the eastern part of the South Serayu Mountains. This normal fault structure is the boundary of the South Serayu Mountains at the eastern part with Kulon Progo Tertiary volcanic Mountains. In the field, these normal fault lineament zones create the Bogowonto river as a boundary of two different geological styles. The influence of this structure on the geological dynamic of the South Serayu Mountains and the Kulon Progo Mountains is important to be explained. The study was conducted by measuring and analyzing fault data and lithology that developed in the area around the two basins boundary. The distribution of the Kulon Progo volcanic rocks indicates the presence of the extensional fault structure. The volcanic facies distribution of the volcano is cut and becomes narrow in the west, while the northward is very wide. Normal fault striations analysis on the fault plane along the fault line shows the least stress trending west-northwest that has worked to create North-South normal faults. The fault-controlled by stress with the vertical main compression area. They have worked to create North Northeast-South Southwest (NNE-SSW) normal faults with westward dipping
ANALISIS TIPE BATUAN DASAR PEMBENTUK NIKEL LATERIT PADA BLOCK X KABUPATEN BANGGAI, PROVINSI SULAWESI TENGAH
Full text linkNickel is an important strategic resource and has become a key material for the development of modern aerospace and defense industries, infrastructure and technology. The research area is located in block X, Banggai Regency, Central Sulawesi. The purpose of this study is to analyze the type of bedrock using petrographic analysis based on the research location. The research method used is direct observation in the field and laboratory analysis. The morphology of the research site belongs to the geomorphological unit of denudational origin, divided into two topography, namely denudational hills with gentle slopes (4-8° or 7-15%) and denudational hills with moderate-sloping slopes (8-16° or 15-30%). The bedrock that has been successfully analyzed at the research site is a cretaceous serpentinized peridotite unit
Percepatan Pembangunan Desa Labanu Kabupaten Gorontalo Melalui Pembuatan Peta Geologi
Full text linkPeta geologi desa dibuat berdasarkan data primer dan sekunder, yang menggambarkan kondisi geologi desa tersebut, seperti jenis batuan, penyebaran, hubungan antar batuan, struktur geologi, dan sebagainya dan dibuat dengan skala 1:5.000, 1 : 10.000 atau 1 : 15.000. Peta geologi desa dapat digunakan sebagai acuan desa dalam mengembangkan potensi desa khususnya dalam aspek sumberdaya mineral dan batuan, potensi geowisata, geologi teknik, geologi lingkungan, serta objek belajar kebumian bagi siswa-siswa di desa tersebut. Selain itu, peta geologi desa juga dapat digunakan sebagai sumber informasi ancaman bencaba geologi yang ada di desa tersebut. Bencana geologi yang dimaksud adalah gempa bumi, tanah longsor, gunung api, tsunami, serta bahaya likuifaksi. Tujuan pengabdian membuat peta geologi desa Labanu untuk menjadi data pendukung percepatan pembangunan desa. Tujuan tersebut dapat dicapai dengan metode kajian pustaka dan orientasi medan serta survei geologi lapangan. Hasil dari pengabdian ini menghasilkan peta geologi Desa Labanu yang didalamnya memuat satuan batuan, struktur geologi dan stratigrafi daerah Labanu
Pelestarian Kebudayaan Gorontalo Melalui Pelatihan Bagi Siswa SD-SMP SATAP Tibawa, Kabupaten Gorontalo
Full text linkThe preservation of the Gorontalo regional culture, both folk dances and folk songs, is very necessary. One form of cultural preservation is through training for elementary and junior high school students. The target of this activity is students of SDN 17 and SMPN 12 SATAP, Tibawa District, Gorontalo Regency. The selection of elementary and junior high school students is in accordance with the training objectives to provide students with information about Gorontalo culture and customs and to train students' self-confidence to appear in public. The results achieved from the Gorontalo regional cultural training, both folk dances and folk songs for students were successful and as expected. The intended result is that the students succeeded in showing their appearance in performing arts events and gaining new knowledge about Gorontalo culture
Study of Petrogenesis Andesite Rock in Bualemo Region, North Gorontalo Regency Based on XRF Geochemistry Analysis
Full text linkThe research area is Bualemo Village, Kwandang District, North Gorontalo Regency. With coordinates 0Ëš 47' 10" - 0Ëš 48' 40" North Latitude and 122Ëš 55' 0" - 122Ëš 57' 5" East Longitude with an area of about 10 km2. This study aims to determine the petrogenesis of andesite rocks and the tectonic setting in the study area. The method used in this study is a mapping method to determine the geological conditions of the research site and X-ray fluorescence (XRF) geochemical analysis to determine the chemical content of rocks. The results showed that the stratigraphy of the study area, sorted from oldest to youngest, was an andesite unit, an altered andesite unit, and an alluvial deposit unit. The geological structure in the study area is a tension joint with a general direction of relative north-south. The tension joint structure data analysis results have a value of N 171oE/79o. Based on geochemistry results, it was found that the type of magma is tholeiitic, with its name basalt and basaltic trachyte andesite. The origin of the magma is island arc tholeiitic and island arc calc-alkaline basalt, with the tectonic setting of the study area being subduction between two oceans, namely between the Sulawesi sea plate and the Sula plate
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Characteristics of Volcanic Rock In The Bualemo Area, North Gorontalo District Based On Petrographic Analysis
Full text linkThe research was conducted in Bualemo Area, Kwandang District, North Gorontalo Regency. The aim of this study was to analyze the petrogenesis of volcanic rocks in the Bualemo Area, North Gorontalo Regency. A mapping technique was utilized in this work to assess the geological conditions of the research site, and petrographic analysis was used to assess the mineral content and rock texture. The findings revealed the stratigraphy of the research region, including an altered andesite unit, an andesite unit, and an alluvial deposit unit, when sorted from old to new. The results of the petrographic analysis show that the rock has a cumoloporphyritic texture, with phenocryst (25%) consisting of plagioclase (60%), k-feldspar (30%), and pyroxene (7%). Pyroxene minerals are all present as phenocrysts, measuring 0.5-0.8 mm, in subhedral-anhedral shape, measuring 0.5-1.5 mm, phenocrysts are starting to turn into secondary minerals, and some are present as relict minerals. The groundmass (75%) consists of predominant plagioclase and minor K-feldspar. The rock is basaltic andesite
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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