Large mineralogically distinct impact melt feature at Copernicus crater – Evidence for retention of compositional heterogeneity
Version of Record online: 26 MAR 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 6, pages 1043–1048, 28 March 2013
How to Cite
2013), Large mineralogically distinct impact melt feature at Copernicus crater – Evidence for retention of compositional heterogeneity, Geophys. Res. Lett., 40, 1043–1048, doi:10.1002/grl.50255., , , and (
- Issue online: 27 APR 2013
- Version of Record online: 26 MAR 2013
- Accepted manuscript online: 22 FEB 2013 01:15PM EST
- Manuscript Accepted: 13 FEB 2013
- Manuscript Revised: 11 FEB 2013
- Manuscript Received: 16 DEC 2012
All Supporting Information may be found in the online version of this article.
|Dhingra_Copernicus_Manuscript_SOM_Table.pdf||PDF document||59K||Algorithm for deriving various spectral parameters. R refers to the reflectance at a given wavelength, Rc is the continuum reflectance defined as a straight line across the absorption band, 20 and 40 (in algorithm for IBD 1000 and IBD 2000, respectively) specify the wavelength interval in nanometers, and n is the number of channels to be integrated over.|
|FigS1.jpg||JPEG image||1281K||Spectral sampling locations in the study area.|
|FigS2_Revised.JPG||JPEG image||2895K||M3 color composite overlain on NAC mosaic of the study region highlighting the compositional units in the region. It is observed that several collapse pits and small craters located inside the newly identified impact melt feature and exposing material at depth have a consistent coloration (cyan color) as compared to other impact melts in the vicinity (displayed in green and red color). Selected spectra from some of these are shown in Figure S3. The mounds were sampled to verify the consistency in the spectral character of material within the sinuous melt feature.|
|FigS3_Revised.JPG||JPEG image||767K||Spectral character of fresh craters outside the sinuous melt feature (green spectra) are similar and suggest uniform composition. Crater/collapse pits (cyan spectra) within the sinuous melt feature expose material deeper than the surface but are still spectrally different from fresh crater composition outside the melt feature.|
|FigS4.JPG||JPEG image||1176K||Spectral character of the sampled soils inside and outside of the sinuous melt feature.|
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