نتایج جستجو برای: mineralogical mapping
تعداد نتایج: 202759 فیلتر نتایج به سال:
this work aims to extract the mineralogical constituents of the lahroud hyperion scene situated in the nw of iran. like the other push-broom sensors, hyperion images suffer from spectral distortions, namely the smile effect. the corresponding spectral curvature is defined as an across-track wavelength shift from the nominal central wavelength, and alters the pixel spectra. the common “column me...
Introduction: Many processing methods exist to extract mineralogical information from Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) images [1, 2, 3], however, such methods are not designed with large-scale, exploratory surveys in mind. Typically, for manual analyses mineral information must be provided a priori (that is, analysts must know in advance the mineral type they are loo...
Ceres has been explored by NASA/Dawn spacecraft, which allowed for the discovery of the main mineralogical and compositional characteristics of Ceres’ surface. Here, we use mainly data from the Visible and InfraRed imaging spectrometer (VIR) in order to investigate the main spectral characteristics of the quadrangle Ac-H-2 Coniraya, one of the 15 quads in which Ceres’ surface has been divided. ...
Introduction: This contribution explores the mapping of spectral parameters of lunar features using the Clementine UVVIS+NIR data set covering the wavelength range between 415 and 2000 nm [1]. The extracted spectral features are the minimum and depth of the principal absorption trough near 1000 nm and the corresponding values of secondary absorption features present at higher wavelengths, as we...
A sequence of earthquakes occurred in 2008 in the Meruoca granitic pluton, located in the northwestern part of the Borborema Province, NE Brazil. A seismological study defined the seismic activity occurring along the seismically-defined Riacho Fundo fault, a 081° striking, 8 km deep structure. The objective of this study was to analyze the correlation between this seismic activity and geologica...
OMEGA (Observatoire pour la Minéralogie, l’Eau, les Glaces et l’Activité) is a visible and near-IR mapping spectrometer, operating in the spectral range 0.385.1 μm. Combining imaging and spectrometry, it will study the mineralogical and molecular composition of the surface and atmosphere of Mars through the spectral analysis of the diffused solar light and surface thermal emission. OMEGA will p...
This data article contains mineralogical and chemical data from mineral accretions sampled from rock art shelters in the Kimberley region of north west Australia. The accretions were collected both on and off pigment and engraved rock art of varying styles observed in the Kimberley with an aim of providing a thorough understanding of the formation and preservation of such materials in the conte...
Global mineralogical mapping of Mars by the Observatoire pour la Mineralogie, l'Eau, les Glaces et l'Activité (OMEGA) instrument on the European Space Agency's Mars Express spacecraft provides new information on Mars' geological and climatic history. Phyllosilicates formed by aqueous alteration very early in the planet's history (the "phyllocian" era) are found in the oldest terrains; sulfates ...
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