bluuebunny/crossref_metadata_2025 huggingface dataset:
STRUKTUR DIAPIR BAWAH PERMUKAAN DASAR LAUT DI KAWASAN PESISIR SELATAN KABUPATEN SAMPANG-PAMEKASAN, JAWA TIMUR
Authors: Astjario Prijantono , Arifin Lukman
Published: October 2018

Penelitian seismik pantul dangkal saluran tunggal (seismic profiling) dilakukan di lepas pantai Kabupaten Sampang dan Pamekasan, pesisir selatan Madura dengan hasil rekaman sepanjang 300 km. Interpretasi data seismik dilakukan dengan cara memisahkan runtunan-runtunan yang diduga mempunyai karakter yang berbeda serta mencirikan urut-urutan pengendapan batuan sedimen.
Ciri dari runtunan Kuarter ditandai dengan sedimen yang mempunyai runtunan yang tidak terganggu oleh aktivitas struktur geologi seperti perlipatan maupun pensesaran. Runtunan Tersier dicirikan dengan adanya aktivitas struktur lipatan sangat ketat seperti antiklin, sinklin, dibarengi dengan sesar-sesar, serta intrusi-intrusi diapir.
Data interpretasi seismik pantul dangkal saluran tunggal memberikan gambaran tentang struktur geologi bawah dasar laut walaupun dengan penetrasi yang sangat terbatas (dangkal). Data tersebut juga memberikan gambaran serta indikasi adanya jebakan-jebakan gas bumi dan diapir di kawasan pantai Kabupaten Pemekasan dan Sampang.

Kata Kunci : seismik, runtunan, diapir, Sampang dan Pamekasan

Single channel seismic profiling activity carried out in the southern coast of Pamekasan and Sampang District, southern coast of Madura, has recorded data of more or less 300 kilometres. The interpretation of seismic profiling records have been done by separating the sequence of sediments which have chronologically different character and depositional environments.
The characteristic of Quaternary sediment sequence is indicated by the sediment that did not disturbed by geological structures, such as folding and faulting. The Tertiary sediment sequences in the south coast of Pamekasan area have been tightly folded which consist of anticline, sincline shale diapir and faulting phenomena.
The interpretation of seismic profiling data showed the indication of the geological structure under the sea floor although by means of the shallow penetration energy. It still can be helpful to indicate diapire and gas closures in the southern coast of Sampang and Pamekasan areas.

Key words : seismic, sequence, diapire, Sampang and Pamekasan
POLA REGIONAL UNSUR UTAMA DAN MINERALOGI PERAIRAN UTARA JAWA TIMUR
Authors: Aryanto Noor C.D. , Kamiludin Udaya
Published: October 2018

Berdasarkan analisis megaskopik, jenis sedimen permukaan di daerah ini sebagian besar tersusun oleh sedimen berbutir halus berukuran lempung â€“ lanau. Berdasarkan analisa 6 contoh sedimen dasar laut dengan menggunakan metode AAS, berhasil diidentifikasi jenis dan kandungan unsur utamanya dimana unsur-unsur tersebut memperlihatkan beberapa pola, seperti: (1) Pola linier negatif untuk CaO terhadap SiO2 (2) pola linier positif untuk K2O terhadap. SiO2 dan Al2O3 vs. SiO2 serta (3) Pola linier yang rata/datar, seperti telihat pada unsur Na2O, MgO dan Fe2O3 terhadap SiO2 . Semua ini menjelaskan tipe batuan asal di daratnya, seperti batugampingan yang tercerminkan oleh kandungan CaO dan MgO yang tinggi selain memperlihatkan pula bahwa sedimen dasar laut di lokasi telitian bersifat lempungan yang dicerminkan oleh kandungan Al2O3 (yang merupakan senyawa penyusun lempung) yang tinggi.

Kata kunci: unsur utama, AAS (Atomic Absorption Spectrometry) dan Perairan utara Jawa Tengah-Jawa Timur.

Based on megascopic analysizes, the sea floor surface sediment types on this area consist of fine grain sediment (from clay to silt). Atomic Absorption Spectometry (AAS) method was carried out to the 6 sea floor sediment samples that succeed to identified the different types and major element contents such as: (1) negative linier pattern for CaO to SiO2; (2) positive linier pattern for K2O to SiO2 and Al2O3 to SiO2; and (3) flat linier pattern is showed by Na2O, MgO and Fe2O3 to SiO2 .
All these patterns are influenced by their source rocks on land, such as calcareous rocks have more contents of CaO and MgO where Al2O3 contents are closed to clay minerals.

Key words: major element, AAS (Atomic Absorption Spectrometry) and northern central and east Java waters.
DISTRIBUSI FORAMINIFERA BENTIK SEBAGAI INDIKATOR KONDISI LINGKUNGAN DI PERAIRAN SEKITAR PULAU BATAM-RIAU KEPULAUAN
Authors: Gustiantini Luli , Usman Ediar
Published: October 2018

Hasil analisis foraminifera bentik dari 42 percontoh sedimen dasar laut yang diambil dari Perairan Batam menunjukkan kelimpahan yang sangat tinggi, terdiri dari 123 spesies, yang terbagi menjadi 72 spesies dari Grup Rotaliina, 28 spesies Miliolina, dan 23 spesies Textulariina. Berdasarkan analisis cluster, lokasi penelitian terbagi menjadi 5 cluster, yang masing-masing didominasi oleh Asterorotalia trispinosa, Pseudorotalia annectens, Amphistegina radiata, Quinqueloculina cf. Q. philippinensis, dan Operculina ammonoides. Kelima spesies tersebut merupakan penciri lingkungan laut dangkal, sedimen kasar, dan berasosiasi dengan lingkungan berenergi tinggi dan terumbu karang. Penyebaran foraminifera bentik di lokasi penelitian dipengaruhi oleh pola arus, distribusi sedimen, dan terumbu karang. Ada perbedaan distribusi foraminifera bentik yang cukup signifikan antara wilayah sebelah barat dengan di sebelah utara dan timur penelitian. Ketiga area tersebut memiliki pola arus, tingkat energi dan distribusi sedimen yang cukup berbeda. Wilayah Perairan Batam dinilai masih memiliki kondisi lingkungan yang bagus, dilihat dari kelimpahan foraminifera bentik, serta dari nilai tingginya index diversitas yaitu >3. Kata kunci : foraminifera bentik; analisis cluster; indikator lingkungan; Perairan Batam - Riau Analysis of benthic foraminifera from 42 seafloor sediment samples from Batam Waters, shows very high abundance, consists of 123 species, which are 72 species belong to Rotaliina, 28 species of Miliolina, and 23 species of Textulariina. Based on cluster analysis, the study area is divided into 5 groups, each cluster is dominated by Asterorotalia trispinosa, Pseudorotalia annectens, Amphistegina radiata, Quinqueloculina cf. Q. philippinensis, and Operculina ammonoides. These five species of benthic foraminifera are indicators for shallow marine water environment, with coarse sediment fraction and associated with high energy environment and coral reef. The benthic foraminiferal distribution is influenced by current pattern, sediment distribution, and coral reef. There is a significant difference between benthic foraminiferal distribution in the western part with the northern and the eastern parts. These three parts of the study area have different current pattern, energy, and sediment distribution. Batam Waters is assumed still in good environment, derived from both high abundance of benthic foraminifera and the high value of diversity index (>3). Key words : benthic foraminifera; cluster analysis; environmental indicator; Batam Waters
KELURUSAN ANOMALI MAGNET BENDA X DI DAERAH Y DARI HASIL REDUKSI KE KUTUB
Authors: Aryawan Ketut Gede , Subarsyah Subarsyah
Published: October 2018

Kita mengalami kesulitan untuk mendeteksi anomali secara langsung dari data medan magnet karena mempunyai polaritas positif dan negatif. Untuk itu diperlukan teknik pemrosesan data magnet untuk memperoleh delineasi pipa yang lebih baik.
Pada kasus delineasi pipa gas di laut daerah X, diterapkan teknik reduksi ke kutub (RTP) untuk mengolah data magnet total. Fast Fourier Transform (FFT) diterapkan pada proses transformasi RTP dalam 2-dimensi dan 3-dimensi menggunakan perangkat lunak Matlab dan Magpick.
Hasilnya menunjukkan arah dari pipa utara-selatan dan memperlihatkan posisi dari pipa semakin jelas yang diperkirakan tepat berada di bawah puncak kurva anomali.

Kata kunci: anomali magnet total, delineasi, reduksi ke kutub, transformasi fourier, klosur.

We have the problem to detect anomaly directly from the magnetic field data because it have two polarities, positive and negative. We need a technique of data processing to detect magnetic anomaly better.
In the case of gas pipeline delineation in X-area, Reduce to Pole (RTP) technique was applied to process total magnetic data. Fast Fourier Transform (FFT) was applied on RTP transformation process in 2-Dimension and 3-Dimension using Matlab and Magpick softwares.
The result indicate that the gas pipeline is north-south direction and the position is under the peak of anomaly curve.

Keywords: total magnetic anomaly, delineation, reduce to pole, fast fourier transform, closur.
INDIKASI MINERALISASI DAN KETERDAPATAN MINERAL BESI DI PANTAI TAMBELAN, KEPULAUAN RIAU BERDASARKAN PEMETAAN GEOLOGI PERMUKAAN
Authors: Aryanto Noor C.D. , Budiono Kris
Published: October 2018

Berdasarkan pemetaan geologi, memperlihatkan adanya indikasi keterdapatan mineral besi di pulau ini, masing-masing di Pantai Gayam (luas 70,84 ha) dan daerah Sekuni (luas 204 ha). Secara umum keterjadian endapan besi di kedua daerah tersebut memperlihatkan proses hidrotermal yang sama, dimana intrusi granitik merupakan sumber panas terhadap batuan induk yang berupa batuan lelehan andesitik dan dasitik. Ada perbedaan mineralisasi yang ditemukan, yaitu munculnya gejala silifikasi di blok Gayam dan gejala limonitisasi di blok Sekuni.

Kata kunci: Mineralisasi, keterdapatan mineral besi, Gayam dan Sekuni.

Based on the geological mapping there was indication of iron-mineral occurrences at Gayam coast (70.84 ha) and Sekuni coast (204 ha). In general, the origin of iron deposit at these areas was a similar hydrothermal process is there granitic intrusion as a heat source to the host rock of andesitic and dacitic rocks. There is a difference process of mineralization between Gayam block and Sekuni block. The difference is silisification and limonitisation.

Keywords: mineralisation, iron-mineral occurrence, Gayam and Sekuni.
ANALISIS SEDIMEN DAN PERUBAHAN KONDISI LINGKUNGAN:DAERAH KASUS DELTA MAHAKAM KALIMANTAN TIMUR
Authors: Darlan Yudi , Kamiludin Udaya
Published: October 2018

Delta Mahakam mempunyai sumberdaya minyak dan gas bumi serta sumberdaya laut lainnya. Hutan mangrove di kawasan Delta Mahakam merupakan salah satu parameter kelestarian lingkungan. Pembukaan lahan mangrove Delta Mahakam untuk daerah pertambakan ikan, pemukiman, dermaga, dan industri, serta untuk alur pelayaran mengakibatkan berkurangnya tanaman mangrove, perubahan dinamika sedimentasi dan lingkungan kawasan pesisir. Kawasan yang rusak diperkirakan lebih dari 80 persen. Sekitar 20 persen dari luas sekitar 1.400 kilometer persegi, hutan mangrove yang masih baik. Ini adalah sebagai bukti Delta Mahakam mengalami proses destruktif. Sebanyak 15 contoh sedimen permukaan dan 2 contoh air permukaan diambil dari lokasi dekat dengan kegiatan industri perminyakan dan daerah hunian telah dianalisis unsur utama dan unsur logam berat. Berdasarkan analisis unsur utama dan unsur logam berat ke 15 contoh sedimen tersebut mengandung unsur silika (SiO2) >50% dan unsur air raksa (Hg) < 2000 ppb. Ke 2 contoh air mengandung unsur logam berat Cadmium (Cd) antara 0 ppb dan 54 ppb, dan Hg antara 1 ppb â€“ 2 ppb. Merujuk pada baku mutu air laut dan baku mutu sedimen maka kualitas air laut dan sedimen Delta Mahakam masih dalam batas normal atau dikatagorikan sebagai kondisi belum tercemar. Jadi perubahan kondisi lingkungan Delta Mahakam tidak memberikan dampak terhadap kuallitas baku mutu sediment dan air secara kimiawi,

Kata kunci: analisis unsur utama, analisis unsur logam berat, perubahan lingkungan, Delta Mahakam, Kalimantan Timur

The Mahakam Delta has natural resources of oil and gas and other marine resources. Mangroves of the Delta Mahakam is one of an environmental indicator Deforestation of mangroves of Delta Mahakam for fishery ponds, settlements, harbor, industries, and for marine transports cause to decrease of those mangroves, changes of dynamics of sedimentation and coastal environments. Mangroves are about 80% in bad condition and whereas 20% of them are in still good condition from total areas of 1.400 km square. This indicates that the Delta Mahakam is in destructive processes. 15 samples from surfacial sediment and 2 samples from surface water taken from locations where close to oil industry fields and settlement areas were analyzed for major and heavy metal elements. According to the analyses those 15 samples, they content elements of silica (SiO2) >50% and mercury (Hg) <2000 ppb. The two samples of water content elements of cadmium (Cd) from 0 ppb â€“ 54 ppb, and Hg from 1 ppb â€“ 2 ppb. Referring to the standard of seawater and sediment quality the water and sediment of the Mahakam Delta are in good condition or no pollution. In fact, changes of the Mahakam Delta environmental condition do not cause impacts to the quality of seawater and sediment of the Mahakam Delta.

Keywords: major element analyses, heavy metal element analyses, environmental changes, the Mahakam Delta, East Kalimantan
DESAIN SURVEI METODA MAGNETIK MENGGUNAKAN MARINE MAGNETOMETER DALAM PENDETEKSIAN RANJAU
Authors: Subarsyah Subarsyah , Aryawan Ketut Gede
Published: October 2018

Magnetometer memiliki kemampuan untuk mendeteksi objek logam (besi) dengan tingkat deteksi yang berbeda tergantung sensitivitas dan akurasinya. Kalibrasi merupakan salahsatu cara dalam menentukan daya deteksi dari sebuah magnetometer dimana hasilnya dapat digunakan dalam desain survei pendeteksian ranjau. Data hasil kalibrasi yang digunakan dalam paper ini adalah kalibrasi terhadap magnetometer Geometrics G-877. Prosedur kalibrasi dilakukan dengan cara melewatkan objek logam besi batangan pada 5 lintasan dengan jarak lintasan berbeda masing-masing 2, 3, 4, 5, dan 6 meter terhadap sensor magnetometer. Hasil kalibrasi menunjukan bahwa kemampuan deteksi sampai 5 m dilihat dari respon anomali magnetnya. Sehingga untuk desain survei dengan menggunakan 2 sensor magnet yang sejenis maka spasi lintasan 10 m dan jarak masing-masing sensor 2 m sementara kedalaman sensor dipertahankan 1 meter di atas dasar laut.

Kata Kunci: magnetometer, kalibrasi, variasi harian.

Magnetometer has ability to detect metal object (iron) with different level of detection, that depend on its sensitivity and accuracy. Calibration is one way in determine detection level of magnetometer where this procedure can be used to arrange survey design for mine detection. The result of calibration that will be used in this paper was calibration on Geometrics type G-877. Calibration procedure was done by passing plate iron object on 5 line with different distances 2,3,4,5 and 6 meters from magnetometer sensor. The result show that detection level up to 5 meters based on respond of anomaly magnetic and the survey design can be arranged in case using 2 sensor of magnetometer the line spacing will be 10 m and distance between both sensor 2 meter and depth sensor must be kept 1 meter above seabed.

Keywords: magnetometer, calibration, diurnal variation.
KARAKTERISTIK DAN PROSES PENGENDAPAN SEDIMEN DASAR LAUT DI PERAIRAN GOSONG BUNGA, KUALANAMU KAB. SERDANG BEDAGEI, PROV. SUMATERA UTARA
Authors: Usman Ediar , Kusnida Dida
Published: October 2018

Daerah penelitian terletak di perairan Gosong Bunga, lepas pantai Kualanamu dengan kedalaman antara 10 â€“ 20 meter dan di bagian tengah hanya 2 - 3 meter pada saat air laut surut. Hasil analisis besar butir di daerah penelitian diperoleh beberapa jenis satuan tekstur sedimen dasar laut, yaitu: pasir lanauan, pasir, pasir lumpuran sedikit krikilan, lumpur pasiran, lanau pasiran, krikil pasiran, lumpur pasiran sedikit krikilan dan pasir sedikit krikilan. Berdasarkan hubungan antara besar butir dan persentase jumlah/frekuensi butiran; pengendapan sedimen dipengaruhi oleh arus sungai dan arus pantai dengan pola pergerakan butiran adalah saltasi, rolling (gulungan) dan sliding (dorongan) serta suspensi, dan secara umum membentuk pola saltasi.
Sedangkan hasil analisis kimia pada beberapa contoh sedimen terpilih menunjukkan kandungan kuarsa (SiO2) berkisar antara 66,33 - 74,21% dan kandungan rata-rata sebesar 69,88%. Analisis fotomikro memperlihatkan komposisi utama adalah butiran kuarsa hampir 85%, mineral berat (magnetit, ilmenit, hematit dan limonit) 10% dan cangkang foram dalam keadaan utuh 5%. Hasil interpretasi rekaman seismik menujukkan ketebalan sedimen Kuarter di daerah penelitian antara 7 â€“ 15 meter, di bagian tengah mencapai 20 meter.

Kata kunci: sedimen dasar laut, proses pengendapan, pola pergerakan, lepas pantai Kualanamu

The survey area is located on the Gosong Bunga waters, offshore of Kualanamu coast with waters depth between 10 â€“ 20 meters, and part of central area only 2 â€“ 3 meters depth on low sea level. Grain size analysis result from the survey area is several types of seafloor sediment textures silty sand, sand, slightly gravelly muddy sand, sandy mud, sandy silt, sandy gravel, slightly gravelly sandy mud and slightly gravelly sand. Based on relation between size, and cumulative and frequency percent of grains; depositional process of sediment influenced by river and coastal current with movement pattern are saltation, rolling, sliding and suspension, and generally to form a saltation pattern.
While, result of chemical analysis on some the samples indicates that the quartz content (SiO2) content are between 66,73 â€“ 74,21%, and the average content is 69,88%. Microphoto analysis indicates that the main content are quartz approximately 85%, 10% heavy minerals (magnetite, ilmenite, hematite and limonite) and good condition foram shell 5%. Seismic interpretation shows that the thickness of Quaternary sediments are about 7 to 15 meters except in the centre of the study area which is 20 meters.

Keywords: seafloor sediment, depositional process, movement pattern, offshore of Kualanamu
IDENTIFIKASI ABRASI PANTAI PERAIRAN TELUK LASOLO KENDARI SULAWESI TENGGARA
Authors: Rachmat Beben , Noviadi Yogi
Published: October 2018

Berdasarkan hasil pengamatan, abrasi pantai yang terjadi di perairan Teluk Lasolo disebabkan oleh aksi gelombang laut yang menjalar dari laut dalam disebelah timur daerah telitian ke arah perairan teluk. Aktifitas gelombang ini menyebabkan terangkutnya sedimen/batuan dari pantai ke arah laut melalui gerakan arus sejajar pantai dan arus tegak lurus pantai. Sedimen yang terangkut akan terbawa terus ke arah laut dalam oleh pergerakan arus laut yang dominan berarah tenggara. Kondisi ini menyebabkan pantai di sekitar perairan Teluk Lasolo mengalami defisit material/sedimen sehingga pantai mengalami abrasi secara kontinyu. Cara yang paling efektif untuk penanganan abrasi pantai di sekitar perairan Teluk Lasolo adalah dengan cara membuat tipe bangunan penahan pantai yang berbentuk groin sejajar dan disesuaikan dengan kondisi hidrooseanografi, morfologi dasar laut dan garis pantainya.

Kata kunci : abrasi, pantai, arus, gelombang, sedimen

Based on observation result, coastal abration that happened in waters of Teluk Lasolo due to action of sea wave propagating from deep sea in eastside the research area into the waters bay. This wave activity causes transporting of sedimen from coast to the sea by the longshore and rip currents movement.
Transported sedimen will be brought to the deep sea by the movement of dominan south-eastern. This condition causes coastal waters around Teluk Lasolo of deficit sedimen will affected the coastal abration in continue. The most effective way to handle coastal abration around territorial waters of Teluk Lasolo is build the breakwater in form of parallel groin and according to the hydrooceanography, morphology of sea floor and coastline conditions.

Keyword : abration, coastal, current, wave, sediment
VERIFIKASI LITOLOGI TERHADAP NILAI KERENTANAN MAGNETIK DI PERAIRAN BANGKA BELITUNG
Authors: Naibaho Tommy , Arifin Lukman
Published: October 2018

Peta anomali magnetik menunjukkan bahwa perairan Bangka Belitung dicirikan oleh pasangan tinggian dan rendahan panjang gelombang anomali dengan amplitudo -200 nTâ€”500nT. Sedangkan dari peta distribusi kerentanan magnetik, tinggian magnetik Belitung dibatasi oleh nilai kerentanan magnetik antara 0,001 cgs unit dan 0,003 cgs unit. Anomali positip rendah dicirikan oleh nilai kerentanan magnetik batuan antara 0,001-0,003 cgs unit merupakan benda intrusif bawah laut yang diduga berupa pluton granitik jenis granit-biotit yang berasosiasi dengan mineral kasiterit. Pluton granitik tersebut sama seperti granit yang berafiliasi dengan endapan timah di daratan Pulau Belitung. Misalnya singkapan granit yang terdapat di sekitar pantai Gembira yang menunjukkan tipe granit biotit porfiritik dengan fenokris ortoklas.

Kata Kunci: anomali magnetik, kerentanan magnetik, granit, Bangka Belitung

Magnetic anomaly map shows that the Bangka Belitung waters are characterized by a pair of hight and low long-wave amplitude anomalies values of -200 nTâ€”500 nT. While the distribution map of magnetic susceptibility magnetic high of Belitung is limited magnetic susceptibility values of 0.001 cgs units and 0.003 cgs units. Positive anomaly of low magnetic is characterized susceptibility values between 0.001 to 0.003 cgs units suggested as a body of submerged intrusive rock body granitic plutons of granite biotite type associated with casiterite mineral. Granitic plutons are the same as granite affiliated with tin deposits in the mainland island of Belitung. For example there are granite outcrops around the Gembira coast that shows the type of porphyritic biotite granite with phenocrysts ortoclas.

Keywords: Magnetic anomaly, magnetic susceptibility, granite, Bangka Belitung
IDENTIFIKASI PROSES TOMBOLO TANJUNG GONDOL DENGAN PERHITUNGAN ENERGI FLUX GELOMBANG DI PANTAI SINGARAJA, BALI UTARA
Authors: Astawa Nyoman , Panjaitan Saultan
Published: October 2018

Morfologi Tanjung Gondol terdiri atas perbukitan yang cukup kontras terhadap morfologi di sekitarnya berupa pedataran. Batuan penyusun Tanjung Gondol terdiri atas batuan volkanik berupa lava, dan breksi vulkanik, yang mempunyai resistensi cukup tinggi terhadap energi gelombang laut. Daerah pedataran disusun oleh endapan aluvium yang sebagian besar berupa endapan pasir yang sangat mudah tergerus oleh energi gelombang.
Tanjung Gondol adalah sebuah pulau dekat pantai yang dipisahkan dari Pulau Bali oleh sebuah selat yang sempit dengan lautnya yang dangkal. Penelitian ini bertujuan untuk mengidentifikasi proses pembentukan tombolo Tanjung Gondol berdasarkan analisis data geologi dan oseanografi. Hasil penelitian menunjukkan bahwa Tanjung Gondol sebelumnya berupa sebuah pulau kecil yang terpisah dari Pulau Bali, dan dibatasi oleh laut dangkal. Karena proses pendangkalan pada laut tersebut akibat arus sejajar pantai, maka pulau kecil ini secara berangsur bersatu dengan Pulau Bali membentuk Tombolo Tanjung Gondol.

kunci : geologi, oseanografi, tombolo, Tanjung Gondol

The morphology Tanjung Gondol consists of hills that fairly contrast to the surrounding morphology of plain. The lithology of Tanjung Gondol consist of volcanic rocks such plain as lava, and volcanic breccia, which has a high resistans to the sea wave energy. The plain area consist of alluvial deposits mostly of sand which are easily eroded by the sea waves.
Tanjung Gondol is an island near the coast which is separated from Bali Island by the narrow strait with shallow sea. The aim of study is to identify the forming process of tombolo Tanjung Gondol based on the analyses of geological and oceanographical data. The result shows that the previous Tanjung Gondol was a small island separated from the Bali Island by a shallow sea. Due to the shallowing process in the area caused by longshore currents, this small island is then gradually connected to Bali Island forming the tombolo of Tanjung Gondol.

Keywords : geology, oceanography, tombolo, Tanjung Gondol.
PROSES SEDIMENTASI DAN EROSI PENGARUHNYA TERHADAP PELABUHAN, SEPANJANG PANTAI BAGIAN BARAT DAN BAGIAN TIMUR, SELAT BALI
Authors: Setiady Deny , Gerhanae Nineu Yayu
Published: October 2018

Pemetaan karakteristik pantai merupakan kegiatan awal untuk mengetahui daerah potensi erosi dan sedimentasi di pesisir barat dan timur Selat Bali. Faktor-faktor yang berperan dalam menganalisis proses sedimentasi dan erosi pantai, yaitu faktor litologi, gelombang dan arus.
Pelabuhan di pesisir barat Selat Bali yaitu Pelabuhan Barang, Pelabuhan Pertamina (Meneng), serta Pelabuhan Fery (Ketapang), merupakan daerah sedimentasi, sedangkan pelabuhan di pesisir timur adalah Pelabuhan Penyeberangan Gilimanuk. (Bali).
Kawasan pesisir Selat Bali di sisi barat batuan penyusunnya berupa batuan gunungapi muda, (lava, breksi dan tuf). Kawasan pesisir Selat Bali di sisi timur, Pulau Bali terdiri dari batugamping, konglomerat, batupasir, lava, breksi, tufa dan aluvium
Pantai sebelah timur Selat Bali sebagian besar merupakan pantai berpasir (kemiringan 0o - 15o). Pantai di daerah ini merupakan daerah sedimentasi dengan lebar pantai antara 10 sampai 20 meter. Pantai barat Selat Bali dicirikan oleh pantai yang memiliki kemiringan yang landai (kemiringan 0Â° - 10Â°) dengan lebar pantai antara 3 meter sampai 15 meter merupakan daerah sedimentasi.

Kata Kunci: Selat Bali, karakteristik pantai, sedimentasi, erosi

Coastal characteristics mapping is an early step to know erosion and sedimentation potencies in west and east Bali Strait. Analysis factors in erosion and sedimentation potencies are lithology, current, and wave. The harbour western Bali Strait consist of Commodity Harbour, Pertamina Harbour (Meneng), and Ferry Harbour (Ketapang), was is sedimentation area, while eastern Bali Strait is Ferry Harbor (Gilimanuk).
The lithology in eastern Bali Strait consists of young volcanic (lava, breccia and tuff). The lithologi in western Bali strait consists of limestone, conglomerate, sandstone, lava, breccia and tuff. In eastern Bali Strait coastal area is dominated by sandy beach (slope 5o - 20o). Coastal in this area has 10 to 20 meters wide. It is a sedimentation process area. Eastern Bali Strait area is characterized by a lower beach (slope 0o - 10o). Coastal in this area has 3 to 15 meters wide, It is a sedimentation process area.

Keywords: Bali Strait, coastal characteristic, sedimentation, abration
STUDI AWAL POLA STRUKTUR BUSUR MUKA ACEH, SUMATRA BAGIAN UTARA (INDONESIA): Penafsiran dan Analisis Peta Batimetri
Authors: Permana Haryadi , Handayani L.
Published: October 2018

Analisis morfostruktur daerah penelitian menunjukan tiga unit struktur geologi yang berbeda, antara lain zona penunjaman, zona deformasi aktif dan busur muka termasuk didalamnya tinggian busur muka dan cekungan busur muka. Struktur geologi zona penunjaman lempeng teramati sepanjang Palung Sunda paralel dengan zona deformasi aktif. Struktur geologi pada Tinggian Busur Muka membentuk sistim prisma akresi yang disusun oleh sesar anjak, sesar geser, perlipatan dan perlipatan naik. Pola kelurusan struktur umumnya berarah berarah utara baratlaut-selatan tenggara di sebelah utara lintang 5Â°U, arah baratlaut-tenggara pada posisi 3Â°-5Â°U, kelurusan kemudian berbelok hampir barat-timur di sekitar 2Â°-3Â°U. Perubahan arah pola kelurusan struktur tersebut ditafsirkan sebagai jawaban terhadap naiknya tingkat kemiringan penunjaman lempeng dari daerah Simeulue ke arah Lintang 5Â°U -7Â°U atau secara umum dari selatan Sumatra ke arah utara Sumatra.
Di bagian tengah daerah telitian berkembang kelurusan patahan berarah utara-selatan yang memotong kelurusan berarah baratlaut-tenggara. Kelurusan tersebut ditafsirkan sebagai patahan geser dekstral dan kemungkinan masih aktif.

Kata Kunci: Analisis morfostruktur, zona penunjaman, zona deformasi aktif, busur muka, kelurusan, sesar anjak, sesar geser, perlipatan, perlipatan naik, kemiringan penunjaman lempeng

Morphostructure analyses of study area demonstrate three different units of geological structures: subduction zone, active deformation zone and fore-arc region, which include Fore Arc High and Fore Arc Basin. The plate subduction zone observes along Sunda Trench parallel with active deformation zone. Structure geology in Fore Arc High builds an accretionary prism system. It was composed by thrust fault, strike slip fault, folding and thrust fold. General trend of structural pattern is NNE-SSE at the north of 5Â°N, NW-SE direction at around 3Â°-5Â°N and changed in direction relative to E-W at about 2Â°-3Â°N. This direction variation of structural pattern trend was interpreted as a response to increase of obliquity degree of subducted plate from Simeulue area to 5Â° -7Â°N, or in general, from southern of Sumatra to north of Sumatra.
NS trend lineament has developed in the middle part of study area that also sliced the NW-SE main structural direction. These structural lineaments interpreted as dextral strike slip fault and it is possibly still active.

Keywords: morphostructure analyses, subduction zone, active deformation zone, fore-arc lineament, thrust fault, strike slip, folding, thrust fold, plat, plate subduction obliquity
PEMBENTUKAN UNDAK BATUGAMPING DAN HUBUNGANNYA DENGAN STRUKTUR DIAPIR DI PERAIRAN TANJUNG AWAR-AWAR PACIRAN JAWA TIMUR
Authors: Sarmili Lili , Hermansyah GM.
Published: October 2018

Batuan yang mendominasi di daerah penyelidikan adalah batugamping koral Formasi Paciran zona Rembang. Batugamping koral inilah membentuk undak pantai di Tanjung Awar-awar dan di pantai Tuban dan sekitarnya. Terdapatnya undak batugamping ini, menandakan adanya pengangkatan secara vertikal pada satuan batuan ini.
Batimetri daerah penyelidikan secara umum merupakan dataran dimana bagian yang dangkal terdapat di bagian baratdaya (ke arah pantai) dengan kedalaman 2 meter dan terdalam ke arah timurlaut dengan kedalaman 9 meter.
Sebanyak 7 lintasan seismik berarah timurlaut-baratdaya dan 15 lintasan berarah barat laut â€“ tenggara telah dilakukan dan beberapa titik bor untuk memperkuat penafsiran jenis batuan di setiap lapisan penampang seismik.
Struktur geologi yang ditafsirkan dari seismik pantul ini adalah adanya suatu blok batuan yang seperti tersesarkan dan terdorong ke atas sebagai struktur diapir. Struktur diapir ini berkembang sangat baik di penampang seismik ke arah barat daya atau ke arah daratan dimana di sekitar pantainya batugamping ini membentuk undak batugamping.
Munculnya struktur diapir ini kemungkinannya dikarenakan bagian selatan dari zona Rembang ini terdapat suatu zona yang mempunyai anomali gaya berat negatif dan karena batugampingnya banyak terpatahkan sehingga sangat mudah diintrusi oleh sedimen yang mempunyai berat jenis kecil.

Kata kunci : undak pantai, batugamping koral, struktur diapir, Tanjung Awar-Awar Jawa Timur

The study area is dominated by coral reef limestone of Paciran Formation of Rembang Zone. This coral reef limestone is responsible to form the beach terraces along the Tanjung Awar-Awar and Tuban beach and its surrounded. The formation of this coral reef limestone terraces closely related to vertical movement of these rocks units.
The study area is bathymetrically flat where the shallow part is on southwest (towards the beach) with 2 meters depth and the deeper part is to northeast part with 9 meters depth.
There are 7 seismic reflection lines of NE-SW and 15 lines of NW-SE have been done and some rocks drilling to emphasize the seismic sequences.
The interpretation of geological structure from seismic reflection shows a feature of rocks unit was faulted and intruded as diapiric structures. These features are well developed towards the beach where the terrace of coral reef limestone can be found on the beaches.
The formation of these diapiric structures are interpreted where on southward of the Rembang Zone there is a gravity negative anomalies and also due to the limestone were faulted and it seems to be easy intruded by a sediment with low density.

Keywords : beach terraces, coral reef limestone, diapiric structure, Tanjung Awar- Awar East Java
PENGGUNAAN METODE ANALISIS SINYAL DALAM INTERPRETASI DATA MAGNET DI PERAIRAN SELAT SUNDA UNTUK MENENTUKAN ARAH DAN POSISI PIPA BAWAH LAUT
Authors: Subarsyah Subarsyah , Nhirwana Budi
Published: October 2018

Penentuan arah dan posisi pipa bawah laut dengan menggunakan data magnetik seringkali mengalami kesulitan dikarenakan data yang didapat tidak selalu ideal seperti yang diharapkan. Oleh karenanya diperlukan metoda yang dapat memberikan informasi posisi dan arah pipa.
Analisis sinyal merupakan metoda yang akan diterapkan untuk membantu penentuan posisi dan arah pipa bawah laut. Informasi yang digunakan dalam metoda ini adalah horizontal dan vertical derivative yang erat kaitannya dengan nilai gradien anomali magnetik, sehingga data yang memiliki nilai anomali magnetik akan terlihat lebih jelas dibandingkan dengan area sekitarnya.

Kata kunci : analisis sinyal, derivative.

Determination of direction and position of the underwater pipeline by using magnetic data often have difficulty because the data obtained are not always ideal as expected. Therefore it is needed a method that can provide the position and also direction of underwater pipeline.
Signal analysis is the method to be applied to determine the position and direction of the underwater pipeline. Information used in this methods are horizontal and vertical derivatives that closely related to the gradient of the magnetic anomalies, so that the data has a value of magnetic anomalies will be seen more clearly expose than the surrounding area.

Keywords : signal analysis, derivative.
TINJAUAN ASPEK-ASPEK PEMBANGUNAN YANG MEMPENGARUHI DAMPAK LINGKUNGAN KAWASAN PESISIR DAN LAUT
Authors: Astjario Prijantono , Kusnida Dida
Published: October 2018

Urbanisasi yang terjadi di hampir seluruh kota besar di Indonesia menambah beban daerah perkotaan menjadi lebih berat. Peningkatan jumlah penduduk selalu diikuti dengan peningkatan infrastruktur perkotaan seperti perumahan, sarana transportasi, air bersih, prasarana pendidikan, dan lain-lain.
Hal tersebut di atas akan menyebabkan dorongan luar biasa terhadap pengalihfungsian lahan-lahan pertanian di kawasan pesisir, di tempat mana akan terjadi suatu situasi kritis terhadap masalah limbah. Kebutuhan akan lahan untuk permukiman maupun kegiatan perekonomian akan semakin meningkat sehingga terjadi perubahan tataguna lahan yang mengakibatkan peningkatan aliran permukaan dan limbah. Pengendalian pencemaran dan pembuangan limbah, merupakan masalah krusial dalam kawasan ini dan tindakan langsung maupun tidak langsung diperlukan untuk menciptakan pengendalian terhadap kegiatan-kegiatan yang dapat merusak lingkungan.

Kata kunci : urbanisasi, infrastruktur, aliran permukaan, pencemaran dan limbah.

Urbanizations that occured in nearly all of the big cities in Indonesia had burdened city areas lately. The increasing of population always comes up with the improvement of infrastructures like residential area, transportation, clean water, educational facility etc.
These things may cause a stimulus and change the function of coastal farming lands and will reach a critical situation concerning the waste problem. The need of lands for settlement area and economical activity will increase and cause the change on land use and will increase the drainage and wastes. The pollution and waste dumping control are crucial problems in this area and the direct and indirect action is needed to create controls on activities that could damage the environment.

Key word : urbanization, infrastructure, drainage, pollution and waste.
A Judicialização da saúde pública e o acesso à justiça
Authors: Pimenta Keyla Ketlyn Passos , Gonçalves Junior Oswaldo
Published: October 2018

O presente estudo busca identificar a existência de paralelos entre o deferimento do benefício da justiça gratuita e o estado de vulnerabilidade social dos beneficiários da gratuidade no que se refere às demandas judiciais em saúde pública. Trata-se de um estudo empírico e retrospectivo, com base em um conjunto de ações judicias movidas na Comarca de Campinas e que versam sobre o direito à saúde pública. Houve a comparação espacial entre o local de residência dos autores das ações estudadas e as regiões de vulnerabilidade geradas pelo Índice Paulista de Vulnerabilidade (IPVS). Conclui-se pela inexistência de vínculos entre o deferimento da gratuidade e a vulnerabilidade social dos beneficiários, indicando que o movimento da judicialização da saúde pública não se refere às camadas mais vulneráveis da população. Argumenta-se que a manutenção das estruturas socais excludentes pode ser aspecto inerente ao fenômeno da judicialização da saúde pública enquanto fenômeno jurídico-social.
Triangulação de métodos: estratégia metodológica na pesquisa interdisciplinar sobre o cuidado às pessoas vivendo com HIV/AIDS
Authors: Meneses Aérica De Figueiredo Pereira , D'Antona Álvaro De Oliveira , Fuentes-Rojas Marta
Published: October 2018

O presente estudo teve por objetivo analisar o uso da triangulação de métodos como estratégia de pesquisa interdisciplinar, com base no relato de experiência de uma investigação sobre o cuidado às Pessoas Vivendo com HIV/AIDS no campo da saúde pública. Inicialmente, discutiu-se sobre a triangulação de métodos, destacando o quanto essa estratégia de pesquisa surge como um meio de superar dicotomias, cruzando múltiplos pontos de vista. Em seguida, apresentou-se o relato da aplicação desta estratégia de pesquisa em uma investigação sobre o cuidado àqueles sujeitos, com profissionais de saúde e gestores de três Serviços de Atenção Especializada. Por fim, concluiu-se que a triangulação de métodos demonstrou ser adequada para pesquisas interdisciplinares, favorecendo um olhar multidimensional para a complexidade do problema de pesquisa, possibilitando a utilização de diferentes técnicas de coleta de dados, cujo resultado viabilizou compreender o objeto de estudo a partir de diferentes perspectivas.
O planejamento urbano como um possível instrumento da gestão democrática das cidades
Authors: Toledo Rodrigo Alberto
Published: October 2018

O intuito desse artigo é reconduzir o debate para o tema da gestão democrática das cidades, importante conceito que permeou a formulação de Planos Diretores a partir da década de 1990, para produzirmos interpretações que diferenciem planejamento de gestão. Objetiva-se demonstrar que planejamento e gestão não são termos intercambiáveis, pois possuem referenciais temporais distintos e se referem a diferentes tipos de atividades. As análises elaboradas no presente artigo estão fundamentadas em pesquisa bibliográfica, leitura, análise e interpretação de livros e periódicos, a partir da qual foi possível estabelecer um painel crítico sobre o Plano Diretor como um instrumento de reforma urbana e da democratização do processo decisório na formulação de políticas públicas urbanas. Entretanto, o procedimento de análise do processo de elaboração do Plano Diretor de Araraquara identificou que o maior desafio para a tarefa de planejar é o de se aliar gestão e metodologias democráticas participativas.
Molecular Markers Associated to Two Non-allelic Genic Male Sterility Genes in Peppers (Capsicum annuum L.)
Authors: Naresh Ponnam , Lin Shih-wen , Lin Chen-yu , Wang Yen-wei , Schafleitner Roland , Kilian Andrzej , Kumar Sanjeet
Published: October 2018

Male sterility is of high importance in hybrid seed production of hot and sweet peppers. Genic (or nuclear) male sterility (GMS) is a simply inherited (usually monogenic recessive) and highly stable trait. However, one major disadvantage of using GMS is 1:1 segregation of male sterile to male fertile plants in every subsequent generation. Molecular markers tightly linked to genic male sterility (ms) genes would facilitate an efficient and rapid transfer ofmsgenes into different genetic backgrounds through marker-assisted backcrossing. The two non-allelic genic male sterility genesms3andmswin hot and sweet pepper backgrounds, respectively, are monogenic recessive. Genotyping by sequencing (GBS) in an F2population segregating forms3gene in hot pepper and in an F6inbred near-isogenic line (NIL) population segregating formswgene in sweet pepper yielded 9,713 and 7,453 single nucleotide polymorphism markers, respectively. Four candidate SNPs co-segregating withms3gene and one co-segregating withmswgene were identified by bulk segregant analysis and physically mapped to chromosomes 1 and 5, respectively. In hot pepper, two markers [HPGMS2 (CAPS) and HPGMS3 (dCAPS)] located 3.83 cM away from thems3gene and in sweet pepper the dCAPS marker SPGMS1 co-segregated (completely linked) with themswgene were developed. These markers will increase the efficacy of the male sterility genes for pepper breeding, as they can be useful in developing the genic male sterile lines in parental inbred lines of commercial hybrids through marker-assisted backcrossing, hybrid seed production, and genetic purity testing of hybrid seeds.
Remote Detection of Growth Dynamics in Red Lettuce Using a Novel Chlorophyll a Fluorometer
Authors: Urschel Matthew R. , Pocock Tessa
Published: October 2018

The production of food crops in controlled environment agriculture (CEA) can help mitigate food insecurity that may result from increasingly frequent and severe weather events in agricultural areas. Lighting is an absolute requirement for crop growth in CEA, and is undergoing rapid advances with the advent of tunable, light emitting diode (LED) systems. The integration of these systems into existing CEA environmental control architectures is in its infancy and would benefit from a non-invasive, rapid, real-time, remote sensor that could track crop growth under different lighting regimes. A newly-developed remote chlorophyll a fluorescence (ChlF) sensing device is described herein that provides direct, remote, real-time physiological data collection for integration into tunable LED lighting control systems, thereby enabling better control of crop growth and energy efficiency. Data collected by this device can be used to accurately model growth of red lettuce plants. In addition to monitoring growth, this system can predict relative growth rates (RGR), net assimilation rates (NAR), plant area (PA), and leaf area ratio (LAR).
Identification of Essential Oils with Strong Activity against Stationary Phase Borrelia burgdorferi
Authors: Feng Jie , Shi Wanliang , Miklossy Judith , Tauxe Genevieve M. , McMeniman Conor J. , Zhang Ying
Published: October 2018

Lyme disease is the most common vector borne-disease in the United States (US). While the majority of the Lyme disease patients can be cured with 2–4 weeks antibiotic treatment, about 10–20% of patients continue to suffer from persisting symptoms. While the cause of this condition is unclear, persistent infection was proposed as one possibility. It has recently been shown that B. burgdorferi develops dormant persisters in stationary phase cultures that are not killed by the current Lyme antibiotics, and there is interest in identifying novel drug candidates that more effectively kill such forms. We previously identified some highly active essential oils with excellent activity against biofilm and stationary phase B. burgdorferi. Here, we screened another 35 essential oils and found 10 essential oils (Allium sativum L. bulbs, Pimenta officinalis Lindl. berries, Cuminum cyminum L. seeds, Cymbopogon martini var. motia Bruno grass, Commiphora myrrha (T. Nees) Engl. resin, Hedychium spicatum Buch.-Ham. ex Sm. flowers, Amyris balsamifera L. wood, Thymus vulgaris L. leaves, Litsea cubeba (Lour.) Pers. fruits, Eucalyptus citriodora Hook. leaves) and the active component of cinnamon bark cinnamaldehyde (CA) at a low concentration of 0.1% have strong activity against stationary phase B. burgdorferi. At a lower concentration of 0.05%, essential oils of Allium sativum L. bulbs, Pimenta officinalis Lindl. berries, Cymbopogon martini var. motia Bruno grass and CA still exhibited strong activity against the stationary phase B. burgdorferi. CA also showed strong activity against replicating B. burgdorferi, with a MIC of 0.02% (or 0.2 μg/mL). In subculture studies, the top five essential oil hits Allium sativum L. bulbs, Pimenta officinalis Lindl. berries, Commiphora myrrha (T. Nees) Engl. resin, Hedychium spicatum Buch.-Ham. ex Sm. flowers, and Litsea cubeba (Lour.) Pers. fruits completely eradicated all B. burgdorferi stationary phase cells at 0.1%, while Cymbopogon martini var. motia Bruno grass, Eucalyptus citriodora Hook. leaves, Amyris balsamifera L. wood, Cuminum cyminum L. seeds, and Thymus vulgaris L. leaves failed to do so as shown by visible spirochetal growth after 21-day subculture. At concentration of 0.05%, only Allium sativum L. bulbs essential oil and CA sterilized the B. burgdorferi stationary phase culture, as shown by no regrowth during subculture, while Pimenta officinalis Lindl. berries, Commiphora myrrha (T. Nees) Engl. resin, Hedychium spicatum Buch.-Ham. ex Sm. flowers and Litsea cubeba (Lour.) Pers. fruits essential oils all had visible growth during subculture. Future studies are needed to determine if these highly active essential oils could eradicate persistent B. burgdorferi infection in vivo.
Effects of a Two-Year Home-Based Exercise Training Program on Oxidized LDL and HDL Lipids in Coronary Artery Disease Patients with and without Type-2 Diabetes
Authors: Tiainen Sanna , Kiviniemi Antti , Hautala Arto , Huikuri Heikki , Ukkola Olavi , Tokola Kari , Tulppo Mikko , Vasankari Tommi
Published: October 2018

We investigated the effect of two-year home-based exercise training program on oxidized low-density lipoprotein LDL (ox-LDL) and high-density lipoprotein HDL (ox-HDL) lipids in patients with coronary artery disease (CAD), both with and without type-2 diabetes (T2D). Analysis of lipoprotein-oxidized lipids was based on the determination of baseline conjugated dienes in lipoprotein lipids. In order to study the effect of an exercise load on ox-LDL and ox-HDL lipids patients in both CAD and CAD + T2D intervention, groups were divided in three based on exercise load (high, medium, and low). During the two-year home-based exercise training program, the study showed that only higher training volume resulted in a decreased concentration of ox-LDL, while the two groups with lower training volumes showed no change. This result indicates that the training load needs to be sufficiently high in order to decrease the concentration of atherogenic ox-LDL lipids in patients with CAD and CAD + T2D. Interestingly, the concentration of ox-HDL did not change in any of the subgroups. This could indicate that the lipid peroxide-transporting capacity of HDL, suggested by results from exercise training studies in healthy adults, may not function similarly in CAD patients with or without T2D. Moreover, the lipid-lowering medication used may have had an influence on these results.
New Generation of Electrochemical Sensors Based on Multi-Walled Carbon Nanotubes
Authors: Oliveira Thiago M. B. F. , Morais Simone
Published: October 2018

Multi-walled carbon nanotubes (MWCNT) have provided unprecedented advances in the design of electrochemical sensors. They are composed by sp2 carbon units oriented as multiple concentric tubes of rolled-up graphene, and present remarkable active surface area, chemical inertness, high strength, and low charge-transfer resistance in both aqueous and non-aqueous solutions. MWCNT are very versatile and have been boosting the development of a new generation of electrochemical sensors with application in medicine, pharmacology, food industry, forensic chemistry, and environmental fields. This work highlights the most important synthesis methods and relevant electrochemical properties of MWCNT for the construction of electrochemical sensors, and the numerous configurations and successful applications of these devices. Thousands of studies have been attesting to the exceptional electroanalytical performance of these devices, but there are still questions in MWCNT electrochemistry that deserve more investigation, aiming to provide new outlooks and advances in this field. Additionally, MWCNT-based sensors should be further explored for real industrial applications including for on-line quality control.