We explore an attenuation and shape-based identification of euhedral pyrites in high-resolution X-ray Computed Tomography (XCT) data using deep neural networks. To deal with the scarcity of annotated data we generate a complementary training set of synthetic images. To investigate and address the domain gap between the synthetic and XCT data, several deep learning models, with and without domai…
Lacustrine shale reservoirs present intricate attributes such as the prevalence of lamination, rapid sedimentary phase transitions, and pronounced heterogeneity. These factors introduce substantial challenges in analyzing and comprehending reservoir characteristics. Thin-section imaging offers a direct medium to observe these traits, yet the intrinsic compromise between image resolution and fie…
Identification and delineation of alteration minerals and regolith play an important role in the discrimination of metallic and non-metallic minerals and are also significant for metallic and non-metallic mineralization zone identification. In this work, altered minerals and gossans have been identified in and around the Askot area in eastern Kumaon Himalaya using hyperspectral data. Analysis o…
Mineral evolution, the study of the diversity and temporal distribution of Earth’s crystalline phases, posits that mineral species have diversified over the past 4.5 billion years as a result of varied physical, chemical, and biological processes. The complementary field of mineral ecology is the study of the diversity and spatial distribution of mineral species on Earth and other terrestrial…
CNES is currently carrying out a Phase A study to assess the feasibility of a future hyperspectral imaging sensor (10 m spatial resolution) combined with a panchromatic camera (2.5 m spatial resolution). This mission focuses on both high spatial and spectral resolution requirements, as inherited from previous French studies such as HYPEX, HYPXIM, and BIODIVERSITY. To meet user requirements, cos…
Maksud penyusunan NPPSS ini adalah untuk menyusun suatu konsep tata cara dalam melakukan inventarisasi dan pemetaan sumberdaya alam dan lingkungan hidup matra laut, baik yang bersifat kebijakan maupun teknis pelaksanaannya. Sedangkan tujuannya adalah mewu
Penyusunan neraca sumberdaya mineral lepas pantai nasional dengan tujuan untuk monitoring dan evaluasi, karena akan diketahui: informasi/data mutakhir, kecenderungan perubahan potensi/cadangan, dan nilai ekonominya secara nasional. Namun untuk menyusun ne