Baking black opal in the desert sun: The importance of silica in desert varnish: Reply

Geology

Volumn 35, Issue 1, 2007, Pages

  Perry, Randall S ^a   Sephton, Mark A ^a  

^a IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

BLACK CARBON; OPAL; ROCK VARNISH; SILICA;

EID: 60849113326     PISSN: 00917613     EISSN: 19432682     Source Type: Journal    
DOI: 10.1130/G23663Y.1     Document Type: Letter

References (17)

1. Dorn, R.I., Krinsley, D.H., Liu, T., Anderson, S., Clark, J., Cahill, T.A., and Gill, T.E., 1992, Manganese-rich rock varnish does occur in Antarctica: Chemical Geology, v. 99, p. 289-298, doi: 10.1016/0009-2541(92)90182-5.
2. Farr, T.G., 1981, Surface weathering of rocks in semiarid regions and its importance for geologic remote sensing, unpublished Ph.D. thesis, Seattle, Washington, University of Washington, 161 p.
3. Jones, C.E., 1991, Characteristics and origin of rock varnish from the hyperarid coastal deserts of Northern Peru: Quaternary Research, v. 35, p. 116-129, doi: 10.1016/0033-5894(91)90099-Q.
4. Kolb, V.M., Philips, A.I., and Perry, R.S., 2004, Testing the role of silicic acid and biochemical materials in the formation of rock coatings, in Hoover, R.B., Levin, G.V., and Rozanov, A.Y., eds., Instruments, Methods, and Missions for Astrobiology VIII: Bellingham, Washington, International Society for Optical Engineering, p. 116-125.
5. Krauskopf, K.B., 1957, Separation of manganese from iron in sedimentary processes: Geochimica et Cosmochimica Acta, v. 12, p. 61-84, doi: 10.1016/0016-7037(57)90018-2.
6. Kuhlman, K.R., Allenbach, L.B., Ball, C.L., Fusco, W.G., La Duc, M.T., Kuhlman, G.M., Anderson, R.C., Erickson, I.K., Stuecker, T., Benardini, J., and Crawford, R.L., 2005, Ultraviolet (UV-C) resistant bacteria isolated from rock varnish in the Whipple Mountains, California: Icarus, v. 174, p. 585-595, doi: 10.1016/j.icarus.2004.11.022.
7. Kuhlman, K.R., Fusco, W.G., La Duc, M.T., Allenbach, L.B., Ball, C.L., Kuhlman, G.M., Anderson, R.C., Erickson, I.K., Struecker, T., Benardini, J., Strap, J.L., and Crawford, R.L., 2006, Diversity of microorganisms within rock varnish in the Whipple Mountains, California: Applied and Environmental Microbiology, v. 72, p. 1708-1715, doi: 10.1128/AEM.72.2.1708-1715.2006.
8. Lynne, B.Y., Campbell, K.A., Perry, R.S., Browne, P.R.L., and Moore, J.N., 2006, Acceleration of sinter diagenesis in an active fumarole, Taupo Volcanic Zone, New Zealand: Geology, v. 34, p. 749-752, doi: 10.1130/G22523.1.
9. Perry, R.S., Engel, M.H., Botta, O., and Staley, J.T., 2003, Amino acid analyses of desert varnish from the Sonoran and Mojave Deserts: Geomicrobiology Journal, v. 20, p. 427-438.
10. Perry, R.S., Dodsworth, J., Staley, J.T., and Engel, M.H., 2004, Bacterial diversity in desert varnish, Third European Workshop on Exo/Astrobiology, Mars: The Search for life: Netherlands, ESA Publications, SP-545, p. 259-260.
11. Perry, R.S., Kolb, V.M., Ajish, P.I., Lynne, B.Y., McLoughlin, N., Sephton, M.A., Wacey, D., and Green, O.R., 2005, Making silica rock coatings in the lab: Synthetic desert varnish in Hoover, R.B.. Levin, G.V., Rosanov, A.Y., and Gladstone, R.G., eds., Astrobiology: Bellingham, Washington, International Society for Optical Engineering, p. 265-275.
12. Perry, R.S., Lynne, B.Y., Sephton, M., Kolb, V.M., Perry, C.C., and Staley, J.T., 2006, Baking black opal in the desert sun: The importance of silica in desert varnish: Geology, v. 34, p. 537-540, doi: 10.1130/G22352.1.
13. Potter, R.M., and Rossman, G.R., 1977, Desert varnish: The importance of clay minerals: Science, v. 196, p. 1446-1448, doi: 10.1126/science.196.4297.1446.
14. Schelble, R.T., McDonald, G.D., Hall, J.A., and Nealson, K.H., 2005, Community structure comparison using FAME analysis of desert varnish and soil, Mojave Desert, California: Geomicrobiology Journal, v. 22, p. 353-360, doi: 10.1080/01490450500248754.
15. Smith, B.J., and Whalley, W.B., 1988, A note on the characteristics and possible origins of desert varnishes for southeast Morocco: Earth Science Processes and Landforms, v. 13, p. 251-258.
16. Taylor-George, S., Palmer, F.E., Staley, J.T., Borns, D.J., Curtiss, D.J., and Adams, J.B., 1983, Fungi and bacteria involved in desert varnish formation: Microbial Ecology, v. 9, p. 227-245, doi: 10.1007/BF02097739.
17. Thiagarajan, N., and Lee, C.-T.A., 2004, Trace-element evidence for the origin of desert varnish by direct aqueous atmospheric deposition: Earth and Planetary Science Letters, v. 224, p. 131-141, doi: 10.1016/j.epsl.2004.04.038.