Wyatt، M.B.؛ McSween Jr، H.Y. (2002). "Spectral Evidence for Weathered Basalt as an Alternative to Andesite in the Northern Lowlands of Mars". Nature. ج. 417 ع. 6886: 263–6. Bibcode:2002Natur.417..263W. DOI:10.1038/417263a. PMID:12015596.
Wyatt، M.B.؛ McSween Jr، H.Y. (2002). "Spectral Evidence for Weathered Basalt as an Alternative to Andesite in the Northern Lowlands of Mars". Nature. ج. 417 ع. 6886: 263–6. Bibcode:2002Natur.417..263W. DOI:10.1038/417263a. PMID:12015596.
Wyatt، M.B.؛ McSween Jr، H.Y. (2002). "Spectral Evidence for Weathered Basalt as an Alternative to Andesite in the Northern Lowlands of Mars". Nature. ج. 417 ع. 6886: 263–6. Bibcode:2002Natur.417..263W. DOI:10.1038/417263a. PMID:12015596.