Kewirausahaan Pemuda Bahari

118 hlm

Al-Ruh Bain al-islam

235 ha

Sejarah maritim Indonesia

184 hlm.: ill

Sejarah maritim Indonesia

184 hlm.: ill

Formulating an Excise Duty on Plastic: A Strategy to Manage Marine Plastic Waste in Indonesia

Plastic excise duty is one of the programs prescribed to combat the marine waste problem in Indonesia. This article presents an insight into the formulation of the government regulations needed to implement plastic excise duty. Initially planned to be implemented by 2018, the program is still in the process almost five years later. This article aims to identify the core issues discussed in the process, the stakeholders playing the central role, and their perspectives by interviewing key informants involved in the inter-ministerial committee. This research identified four ministries as definitive stakeholders as representatives of fiscal, industrial, and environmental groups. These groups have distinct interests in five core issues discussed during the negotiation process: the urgency of implementing an excise duty, its goals, scope of implementation, rate of tariff, and the settings for earmarking. This research found that environmental consideration was the central premise during the interministerial negotiation. However, the government’s hesitation to immediately implement an excise on plastic bags shows that currently, the government tends to prioritize economic consideration

Correlation between Building Damages and Losses with the Microzonation Map of Mataram—Case Study: Lombok Earthquake 2018, Indonesia

The high intensity of the earthquake on Lombok Island on 5 August 2018, with a magnitude of 7.0 Mb, caused material losses experienced by the affected residential areas. The Indonesian Geological Agency in 2015 published a microzonation map that mapped zones prone to earthquake shocks to mitigate disasters. This study aimed to compare the level of damage and loss in residential areas due to earthquakes in Mataram City with earthquake-prone zones using a microzonation map. The correlation between damage and loss value of residentials with microzonation maps was evaluated using the overlay method. The results showed that the level of damage and the value of the loss of houses in the high disaster-prone zone (red zone) showed the highest loss value. In comparison, the level of losses in the moderate disaster-prone zone (yellow zone) and light disaster-prone zone (blue zone) on the microzonation map shows a low and lower loss value. This study concludes that the microzonation map helps determine the damage zone and the level of disaster vulnerability caused by the earthquake hazard

Late Cenozoic geodynamic evolution of eastern Indonesia

International audienceThis paper presents an internally and globally consistent model of plate evolution in eastern Indonesia from Middle Miocene to Present time. It is centered on the Banda Sea region located in the triple junction area between the Pacific–Philippine, Australia and South–East Asia plates. The geological and geophysical data available from Indonesia were until recently insufficient to define a unique plate tectonic model. In this paper, the new data taken into account clearly restrict the possible interpretations. Owing to a great number of geological, geophysical and geochemical studies, the major plate boundaries (the Sunda–Banda subduction zone to the south, the Tarera–Aiduna Fault zone and the Seram Thrust to the east, and the Sorong Fault zone and Molucca Sea collision zone to the north) are now clearly identified. The age of the major tectonic structures isalso better known. Geodetic measurements well constrain the Present time plate kinematics. We also consider the deformation history within eastern Indonesia, where numerous short-lived microplates and their related microcontinents successively accreted to the Asiatic margin. Moreover, magnetic anomalies identification of the North and South Banda Sea basins allows a precise kinematic reconstruction of the back-arc opening. We used the Plates software to test the coherency of our model, presented as a series of 4 plate reconstruction maps from 13 Ma to the present. Finally, the origin of oceanic domains restored by our reconstruction is discussed

Origine et évolution du bassin Nord-Banda (Indonésie) : apport des données magnétiques

International audienceThe North Banda Sea Basin is located in Eastern Indonesia, close to the triple junction between the Eurasian, Pacific and Indo-Australian plates, andopened during Late Miocene time in a back arc setting. We use the magnetic and bathymetric data to depict this opening and the geodynamical evolution of the basin. We also take into account radiochronological datations available from some dredges of its basement. Sea floor spreading occurred from 12.5 to 7.15 Ma directed by three large NW–SE transform faults, namely the West Buru, Tampomas and Hamilton fracture zones. Finally, a schematic model of the North and South Banda basins evolution is presented.Le bassin Nord-Banda, situé en Indonésie orientale à proximité du point triple entre les plaques Eurasie, Pacifique et Indo-Australie, s’est formé au Miocène supérieur dans un contexte arrière-arc. Nous utilisons les données magnétiques et bathymétriques pour préciser la géométrie de l’ouverture du bassin et retracer les grandes étapes de son évolution géodynamique. Nous prenons aussi en compte les datations du plancher océanique obtenues à partir de dragages. L’accrétion océanique s’est déroulée entre 12,5 et 7,15 Ma suivant une direction NW–SE. L’ouverture du bassin fut guidée par les grands accidents transformants de Buru ouest, de Tampomas et de Hamilton. Un modèle schématique de l’évolution des bassins Nord et Sud-Banda est enfin présenté

A Neogene back-arc origin for the Banda Sea basins: geochemical and geochronological constraints from the Banda ridges (East Indonesia)

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