TY - JOUR
T1 - A global view of martian surface compositions from MGS-TES
AU - Bandfield, Joshua L.
AU - Hamilton, Victoria E.
AU - Christensen, Philip
PY - 2000/3/3
Y1 - 2000/3/3
N2 - Thermal Emission Spectrometer (TES) data from the Mars Global Surveyor (MGS) are used to determine compositions and distributions of martian low- albedo regions. Two surface spectral signatures are identified from low- albedo regions. Comparisons with spectra of terrestrial rock samples and deconvolution results indicate that the two compositions are a basaltic composition dominated by plagioclase feldspar and dinopyroxene and an andesitic composition dominated by plagioclase feldspar and volcanic glass. The distribution of the two compositions is split roughly along the planetary dichotomy. The basaltic composition is confined to older surfaces, and the more silitic composition is concentrated in the younger northern plains.
AB - Thermal Emission Spectrometer (TES) data from the Mars Global Surveyor (MGS) are used to determine compositions and distributions of martian low- albedo regions. Two surface spectral signatures are identified from low- albedo regions. Comparisons with spectra of terrestrial rock samples and deconvolution results indicate that the two compositions are a basaltic composition dominated by plagioclase feldspar and dinopyroxene and an andesitic composition dominated by plagioclase feldspar and volcanic glass. The distribution of the two compositions is split roughly along the planetary dichotomy. The basaltic composition is confined to older surfaces, and the more silitic composition is concentrated in the younger northern plains.
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U2 - 10.1126/science.287.5458.1626
DO - 10.1126/science.287.5458.1626
M3 - Article
AN - SCOPUS:0034094308
VL - 287
SP - 1626
EP - 1630
JO - Science
JF - Science
SN - 0036-8075
IS - 5458
ER -