Natural and Applied Sciences Phone: (920) 465-2327

R. AILEEN YINGST

Natural and Applied Sciences Phone: (920) 465-2327 University of Wisconsin - Green Bay Fax: (920) 465-2376 Green Bay, WI 54311 Email: [email protected]

EDUCATION

Ph.D., Department of Geological Sciences, Brown University 1998 Thesis: Characteristics of lunar lava ponds as indicators of magma transport mechanisms and local-scale geology of Ganymede bright terrain as shown by Galileo very high- resolution images. Sc.M., Department of Geological Sciences, Brown University 1995 A.B., Department of Physics and Astronomy, Dartmouth College 1991 (Major modified with Earth Sciences; off-campus research at Kitt Peak National Observatory)

MISSION EXPERIENCE

Co-Investigator, MAHLI, Mars Science Laboratory 2004-present University of Wisconsin – Green Bay, Green Bay, WI Co-Investigator, proposed BEx Mars Scout mission 2006-present University of Wisconsin – Green Bay, Green Bay, WI Participating Scientist, Mars Exploration Rover 2005-present University of Wisconsin – Green Bay, Green Bay, WI Education/Public Outreach Partner, Mars Phoenix 2003-present Space Explorers, Inc., De Pere, WI Research Associate, Imager for Mars Pathfinder/Mars Polar Lander 1998-2001 Lunar and Planetary Lab, University of Arizona

RESEARCH AND TEACHING EXPERIENCE

Senior Scientist 2008-present Planetary Science Institute — Tucson, AZ Adjunct Assistant Professor 2000-present University of Wisconsin – Green Bay, Green Bay, WI Director, Wisconsin Space Grant Consortium 2000-present University of Wisconsin – Green Bay, Green Bay, WI Chief Scientist, Space Explorers, Inc., 1999-2000 Space Explorers, Inc., De Pere, WI Research Associate, Imager for Mars Pathfinder/Mars Polar Lander Team 1998-2001 Lunar and Planetary Lab, University of Arizona Study Scientist, Venus Aerobot Mission 1995-1998 Research Assistant 1993-1998 Department of Geological Sciences, Brown University Research Assistant 1993 Department of Earth Sciences, Dartmouth College OTHER OUTREACH EXPERIENCE

Instructor, Learning in Retirement 2003 University of Wisconsin – Green Bay Instructor, Brown Learning Community 1997 Brown University NASA Rhode Island Space Grant Fellow 1996-1997 Individual Teaching Consultant, Center for the Advancement of College Teaching 1995- 1997 Brown University Guest Lecturer and Teaching Assistant 1994 Department of Geological Sciences, Brown University

PROFESSIONAL ACTIVITIES

Panels and Committees Field Exploration Analysis Team, 2007-present Lunar Exploration Analysis Group-Specific Action Team, 2006. Review Panels Mars Fundamental Research Review Panel (NASA), 2002, 2003, 2005, 2006; Planetary Geology and Geophysics Review Panel (NASA), 2002; Mars Instrument Development Program (NASA), 2007; Planetary Instrument Design and Development Program (2010); Dawn Level 1 PDS data release (2010). Space Colonization Technical Committee, AIAA (2001-present) National Space Grant Alliance, Board of Directors, NASA Space Grant (2001-2004) Invited Panelist, Lunar and Planetary Laboratory Conference, Tucson, AZ (2000) Course Editor and Writer, Brooks-Cole Publishing (1999-present) Continuing Education, University of Arizona. (1998-2000) First-year Spanish and Introductory Journalism. Science Speakers Program, Arizona Space Grant, Tucson, AZ (1998-present) Visiting Researcher, Journey through the Universe Program, Challenger Center (1996-2003) Expert Witness, Boothby & Associates Participant, Mission Design Workshop, Jet Propulsion Laboratory Participating Scientist, Science by Mail Program Invited Speaker, Planetary Society

WORKSHOPS

Physical Emplacement Styles of Basaltic Lavas, Volcano, Hawai’i 1998 International Moon Workshop, Berlin, Germany 1996

PROFESSIONAL SOCIETY MEMBERSHIPS

American Geophysical Union 1993 Geological Society of America 1993 Arizona Geological Society 1996 American Astronomical Society, Division of Planetary Sciences 1998 American Association for the Advancement of Science 2000 American Institute of Aeronautics and Astronautics 2002 UNIVERSITY SERVICE

2001-present Graduate Council, University of Wisconsin – Green Bay 1995-1996 Liaison to Center for the Advancement of College Teaching, Department of Geological Sciences, Brown University 1990 Representative to Academic Mentorship Council, Department of Physics and Astronomy, Dartmouth College 1988-1989 Public Night Coordinator and Technician, Shattuck Observatory, Dartmouth College

AWARDS AND HONORS

2008 International Space Ops Award for Outstanding Achievement for 2010, MER Operations Team NASA Group Achievement Award, MER 3rd and 4th Extended Missions 2008-2011 Elected Executive Committee, National Space Grant Directors 2007 Voted Regional Chair, Great Midwestern Regional Space Grant Consortium 2005-2008 Appointed member of Pellas-Ryder Award Committee 2005 Elected 1st Vice Chair, Planetary Division, Geological Society of America 2004 Elected 2nd Vice Chair, Planetary Division, Geological Society of America 2002-2004 Elected Secretary/Treasurer, Planetary Division, Geological Society of America 2000, 2005, 2008 Session chair, Lunar and Planetary Science Conference 1998 Nominated to full membership in Sigma Xi Honor Society 1993-1998 Brown University Research Assistantship 1996 NASA Space Grant Fellow 1995, 1996 Participant, Jet Propulsion Laboratory Summer School 1993 Dartmouth College Research Assistantship for Independent Study 1991 General Electric Fellowship

PUBLICATIONS

Peer-reviewed Publications Numerous publications as Athena Science Team Member. Papers with a significant contribution are listed individually below (please note that an alphabetical listing of authors is not necessarily indicative of level of effort, especially when one's last name is Yingst)

Yingst, R.A. (2009), Mars Analog Handlens-scale Image Database, residing on the PDS geosciences node at: http://pds-geosciences.wustl.edu/missions/labdata/marshandlens.htm.

Yingst, R. A., M.E. Schmidt, and R.C.F. Lentz (2009), Observations of a potential Mars analog at the microscale using rover-inspired methods: A 10-sol observation of Fort Rock tuff ring, JGR, 114, doi:10.1029/2008JE003223.

Squyres, S.W., A. H. Knoll, R. E. Arvidson, J. W. Ashley, J. F. Bell III, W. M. Calvin, P. R. Christensen, B. C. Clark, B. A. Cohen, P. A. de Souza Jr., L. Edgar, W. H. Farrand, I. Fleischer, R. Gellert, M. P. Golombek, J. Grant, J. Grotzinger, A. Hayes, K. E. Herkenhoff, J. R. Johnson, B. Jolliff, G. Klingelhöfer, A. Knudson, R. Li, T. J. McCoy, S. M. McLennan, D. W. Ming, D. W. Mittlefehldt, R. V. Morris, J. W. Rice Jr., C. Schröder, R. J. Sullivan, A. Yen, and R. A. Yingst (2009), Exploration of Victoria Crater by the Mars Rover Opportunity, Science, 324, 1058, DOI: 10.1126/science.1170355 Yingst, R. A., L. Crumpler, W. H. Farrand, R. Li, N. A. Cabrol, and L. D. Neakrase (2008), Morphology and texture of particles along the Spirit rover traverse from sol 450 to sol 745, J. Geophys. Res., 113, E12S41, doi:10.1029/2008JE003179

Herkenhoff, K. E., J. P. Grotzinger, A. H. Knoll, S. M. McLennan, C. M. Weitz, R. A. Yingst, R. C. Anderson, B. Archinal, R. E. Arvidson, J. Barrett, K. J. Becker, J. F. Bell, C. Budney, M. G. Chapman, D. A. Cook, B. L. Ehlmann, B. J. Franklin, L. R. Gaddis, D. Galuszka, P. Garcia, P. E. Geissler, T. M. Hare, E. Howington-Kraus, J. R. Johnson, L. Keszthelyi, R. L. Kirk, P. D. Lanagan, E. M. Lee, C. Leff, J. Maki, K. F. Mullins, T. Parker, B. Redding, M. Rosiek, M. H. Sims, L. A. Soderblom, N. Spanovich, R. Springer, S. W. Squyres, D. Stolper, R. Sucharski, T. Sucharski, R. J. Sullivan, and J. Torson (2008), Surface processes recorded by rocks and soils on Meridiani Planum, Mars: Microscopic Imager observations during Opportunity's first three extended missions, J. Geophys. Res., doi:10.1029/2008JE003100.

Nathalie A. Cabrol, Kenneth Herkenhoff , Ronald Greeley , Edmond Grin , Cristian Schröder , Claude d'Uston , Catherine Weitz , Aileen Yingst , Barbara Cohen , Jeffrey Moore , Amy Knudson , Brenda Franklin , Robert C. Anderson , Rongxing Li (2008), Soil Sedimentology at Gusev Crater From Columbia Memorial Station to Winter Haven, J. Geophys. Res., 113, E06S05, doi:10.1029/2007JE002953.

Yingst, R. A., A. F. C. Haldemann, K. L. Biedermann, and A. M. Monhead (2007), Quantitative morphology of rocks at the Mars Pathfinder landing site, J. Geophys. Res., 112, E06002, doi:10.1029/2005JE002582.

Gilmore, M.S., Collins, G.C., Crumpler, L.S., Cutts, J.A., deCharon, A.V., Head, J.W. III, Nock, K.T., Parry, M. and Yingst, R.A., Investigation of the application of aerobot technology at Venus, Acta Astronautica, 56, 477-494, 2005.

Yingst, R.A., Smith, P.H., Lemmon, M.T., Marcialis, R.L., Rice, J.W., Jr., and Weinberg, J.D., DIRTCam in the desert: The Silver Lake field test of the Robotic Arm Camera, Jour. Geophys. Res., 106, 7721-7732, 2001.

Yingst, R.A., and Head, J.W., Geology of mare deposits in South Pole-Aitken basin as seen by Clementine UVVIS data, Journal of Geophysical Research, 104, 18,957-19,979, 1999.

Head, J.W., Wilson, L., Robinson, M., Hiesinger, H., Weitz, C., Yingst, A., Moon and Mercury: Determining the environment of volcanism in early planetary history, in Environmental Effects on Volcanic Eruptions: From Deep Oceans to Deep Space, ed. by T.K.P. Gregg and J. Zimbelman, Plenum Publishers, 1999.

Yingst, R.A. and Head, J.W., Characteristics of lunar mare deposits in Smythii and Marginis basins: Implications for magma transport mechanisms, Jour. Geophys. Res, 103, 11,135- 11,158, 1998.

Yingst, R.A. and Head, J.W., Volumes of individual eruptive episodes on the Moon: Implications for eruption conditions, crustal transport mechanisms, and magma source regions, Jour. Geophys. Res, 102, 10,909-10,931, 1997.

Textbooks and Instructional Media Yingst, R.A. and Haley, C., Study Guide for Essentials of Geology, 203 pp., Brooks/Cole, CA, 2001.

Contributor, Space Science Reference Guide (CD-ROM), Lunar and Planetary Institute, Houston, TX, 2000. http://www.lpi.usra.edu/education/ssrgtextbook/.

Conference Proceedings

Yingst, R.A., 1999, Pathfinder site spectra, Proceedings of the Workshop on the Weathering of Basalts on Earth and Mars.

Yingst, R. A. and Head, J. W., 1996, Characteristics of lunar mare deposits and crustal thickness relationships: Implications for MORO, Proceedings of the International Moon Workshop.

Abstracts (First author denotes presentation)

Numerous abstracts as Athena Science Team Member. Abstracts with a significant contribution are listed individually below.

Yingst, R.A., L.S. Crumpler, R. Li, and P. deSouza (2010), Shape, roundness and texture of particles along the Spirit rover traverse from sol 750 to sol 1824, Lunar Planet Sci. Conf., 41st, Abs. #1276.

Crumpler, L., R. Arvidson, S. Squyres, A. Yingst, T. McCoy, D. DesMarais, N. Cabrol, C. Schröder, B. Cohen, J. Rice, Jr., S. Ruff, R. Morris, A. Yen, A McEwen, P. deSouza, and the Athena Science Team (2010), Overview of the field geologic context of Mars Exploration Rover Spirit, Home Plate and surroundings, Lunar Planet. Sci. Conf., 41st, Abs. #2557.

Kuhlman, K.R., J.L. Janzen, M. Weingarten, M. Christensen, and R.A. Yingst (2010), Optical microscopy of a Mars analog from the 1996 Skei∂arársandur Jökulhlaup, Lunar Planet. Sci. Conf., 41st, Abs. #2514.

Mittlefehldt, D.W., R. Gellert, K.E. Herkenhoff, R.V. Morris, B.C. Clark, B.A. Cohen, I. Fleischer, B.L. Jolliff, G. Klingelhöfer, D.W. Ming, R.A. Yingst, and the Athena Science Team (2010), Marquette Island: A distinct mafic lithology discovered by Opportunity, Lunar Planet. Sci. Conf., 41st, Abs. # 2109.

Farrand, W.H., J.R. Johnson, J.F. Bell, R.A. Yingst, and C.M. Weitz (2010), Distinguishing martian "erratics" from meteorites and Mridiani Planum using Pancam: Comparing Marquette Island to Meridiani cobbles, Lunar Planet. Sci. Conf., 41st, Abs. #1935.

Yingst, R.A., and T.K.P. Gregg (2009), Lunar geologic mapping: A preliminary map of a portion of the Marius Quadrangle, Lunar Planet. Sci. Conf., 40th, Abs. #1319.

Yingst, R.A. and K.R. Kuhlman (2009), Microscale characteristics of particles deposited by the 1996 Skei∂arársandur Jökulhlaup: A potential terrestrial analog to Mars, Lunar Planet Sci. Conf., 40th, Abs. #1326.

Edgett, K.S., M. A. Ravine, M. A. Caplinger, F. T. Ghaemi, J. A. Schaffner, M. C. Malin, J. M. Baker, D. R. DiBiase, J. Laramee, J. N. Maki, R. G. Willson, J. F. Bell III, J. F. Cameron, W. E. Dietrich, L. J. Edwards, B. Hallet, K. E. Herkenhoff, E. Heydari, L. C. Kah, M. T. Lemmon, M. E. Minitti, T. S. Olson, T. J. Parker, S. K. Rowland, J. Schieber, R. J. Sullivan, D. Y. Sumner, P. C. Thomas, and R. A. Yingst (2009), The Mars Science Laboratory (MSL) Mars Handlens Instrument (MAHLI) flight instrument, Lunar Planet. Sci. Conf., 40th, Abs. #1197.

McCoy, T.J., D.W. Baldwin, W. Olm, G.M. Ironstrack, R.A. Yingst and S.R. Doudrick (2009), myaamionki: ašiihkiwi neehi kiišikwi (The Place of the Miami: Earth and Sky), Lunar Planet. Sci. Conf., 40th, Abs. # 1283.

Yingst, R.A., L.S. Crumpler, R. Li, W.H. Farrand and the Athena Science Team (2008), Shape, roundness and texture of particles along the Spirit rover traverse from sol 450 to sol 750, Lunar Planet Sci. Conf., 39th, Abs. #1867.

Yingst, R.A., M.E. Schmidt, R.C.F. Lentz and B.A. Cohen (2008), Using Remote Rover-Driven Methodology to Conduct Fieldwork on the Moon: Lessons Learned from Mars, GSA Abstracts & Programs, 38, Abs. 237-11.

Gregg, T.K.P. and R.A. Yingst, 2008, Geologic mapping of the Marius Quadrangle, the Moon, Abstracts of the Annual Meeting of Planetary Geologic Mappers, Flagstaff, AZ, 2008, NASA/CP-2008-215469, L. Bleamaster, K. Tanaka and M. Kelley, eds.

Yingst, R.A., M.E. Schmidt and R.C.F. Lentz, The handlens atlas: A terrestrial image library of microscale structures as analogues for Mars, GSA Abstracts & Programs, Abs. #149187, 2008.

Yingst, R.A., M.E. Schmidt, and R.C.F. Lentz (2007), Microscale observations of a potential Mars analog using rover-inspired methods, GSA Abstracts & Programs, 38.

Yingst, R.A. M.E. Schmidt, K.E. Herkenhoff, D.W. Mittlefehldt, and the Athena Science Team, Linking Home Plate and Algonquin-class rocks through microtextural analysis: Evidence for hydrovolcanism in the Inner Basin of Columbia Hills, Gusev Crater, 7th Int'l Mars Conf., 3296, 2007.

Schmidt, M.E., N. Cabrol, T. McCoy, J. Rice, S.W. Squyres and R.A. Yingst, Magma-brine interaction to produce home plate, Gusev crater, BC CONF., 2007.

Yingst, R.A., N.A. Cabrol, L.S. Crumpler, R. Li and the Athena Science Team, Quantitative morphology of clasts along the Sprit rover traverse from sol 450 to sol 800, Lunar Planet. Sci. Conf., 38th, 1630, 2007.

Yingst, R.A., M.E. Schmidt, R.C.F. Lentz, M.J. Christman and R. Behnke, Understanding Mars at the microscale by imaging terrestrial analogs: The handlens atlas, Lunar Planet. Sci. Conf., 38th, 1130, 2007.

Weitz, C., W. Farrand, B. Jolliff, J. Johnson, J. Bell, and A. Yingst, Spectral diversity of rock fragments at the Meridiani Planum landing site, Eos Trans. AGU, 87, Fall Meet. Suppl., P41B-1268, 2006.

Rice, J.W., W. Farrand, T. McCoy, M. Schmidt and R.A. Yingst, Origin of Home Plate, Columbia Hills, Mars: Hydrovolcanic hypothesis, Eos Trans. AGU, 87, Fall Meet. Suppl., P41B-1274, 2006.

Yingst, R.A., A.F.C. Haldemann, K.L. Biedermann, and A.M. Monhead, Comparing quantitative morphology of clasts at three landing sites on Mars: Mars Pathfinder, Viking 1 and Viking 2, Lunar Planet Sci. Conf., 37th, 1617, 2006. Edgett, K.S., J.F. Bell III, K.E. Herkenhoff, E. Heydari, L.C. Kah, M.E. Minitti, T.S. Olson, S.K. Rowland, J. Schieber, R.J. Sullivan, R.A. Yingst, M.A. Ravine, M.A. Caplinger, and J.N. Maki, The MArs Hand Lens Imager (MAHLI) for the 2009 Mars Science Laboratory, Lunar Planet Sci. Conf., 36th, 1170, 2005.

Biedermann, K.L., Yingst, R.A.,, Monhead, A.M. and Haldemann, A.F.C., Quantitative morphology as a probe to transport mechanisms and composition: Old technique, new planet, GSA Abstracts, 37, #93238, 2005.

Yingst, R.A., K.L. Biedermann, N.M. Pierre, and A.F.C. Haldemann, Correlation of rock spectra with morphologic indices: Evidence for a single rock type at the Mars Pathfinder landing site, Lunar Planet Sci. Conf., 36th, 1896, 2005.

Pierre, N.M., and R.A. Yingst, Classification of Mars Pathfinder rocks using multispectral data, Lunar Planet. Sci. Conf., 36th, 1948, 2005.

Yingst, R.A.,Biedermann, K.L., Monhead, A.M., Haldemann, A.F.C., and Kowalcyzk, M.R., Classification and distribution of Mars Pathfinder rocks using quantitative morphologic indices, LPSC, 35th, 1272, 2004.

Yingst, R.A., Haldemann, A.F.C., and Lemmon, M.T., Classification of Mars Pathfinder rock surfaces using quantitative morphologic indices, LPSC, 34th, 1081, 2003.

Yingst, R.A., and Dutch, S.I., Analysis of the fine-scale morphology of Mars analogue terrestrial surface materials: Implications for the MER Microscopic Imager experiment, LPSC, 33rd, 1509, 2002.

Antonenko, I., and Yingst, R.A., Mare and cryptomare deposits in the Schickard region of the Moon: New measurements using Clementine FeO data, LPSC, 33rd, 1438, 2002.

Theno, T.W. and Yingst, R.A., Lava pond characterization in Mercurius crater, Mercurius C and the surrounding region, LPSC, 33rd, 1926, 2002.

Yingst, R.A., Smith, P.H., and Lemmon, M.T., Multispectral evidence for a single rock type at the Mars Pathfinder landing site, LPSC, 31st, 1422, 2000.

Smith, P.H., Bos, B.J., Yingst, R.A. and Lemmon, M.T., Blue Mars, LPSC, 31st, 1938, 2000.

Hood, L.L., Yingst, A., Zakharian, A., Lin, R.P., Mitchell, D.L., Halekas, J., Acuna, M.H., and Binder, A.B., Regional mapping of the lunar crustal magnetic field: Correlation of strong anomalies with curvilinear albedo markings, LPSC, 31st, 1251, 2000.

Hood, L.L., Yingst, A., Mitchell, D.L., Lin, R.P., Acuna, M., and Binder, A., High-resolution mapping of lunar crustal magnetic fields: Correlations with albedo markings of the Reiner Gamma class, Workshop on New View of the Moon II, 28-29, 1999.

Yingst, R.A., Reid, R.J. and Smith, P.H., Preliminary science results from the recalibration of IMP images, 5th Int’l. Mars Conf., 6199, 1999. Yingst, R.A., and Head, J.W., Jules Verne mare soils as revealed by Clementine UVVIS data, LPSC, 30th, 1684, 1999.

Yingst, R.A., Reid, R.J., Smith, P.H. and Rice, J.W., Jr., Spectral analysis of the Mini- Matterhorn region, Sagan Memorial Station, Mars, LPSC, 30th, 1912, 1999.

Yingst, R.A., and Head, J.W., Morphologic characteristics of lunar lava ponds as indicators of magma transport mechanisms, LPSC, 29th, 1316-1317, 1998.

Yingst, R.A., and Head, J.W., The nature of the mafic anomaly in the South Pole-Aitken basin floor: Evidence from a multispectral analysis of lava pond soils, LPSC, 29th, 1311-1312, 1998.

Yingst, R.A., and Head, J.W., Geologic structure and regolith processes of Xibalba Sulci, Ganymede as indicated by very high resolution Galileo imagery, LPSC, 29th, 1318-1319, 1998.

Yingst, R.A., and Head, J.W., Morphologic characteristics of lunar lava ponds as indicators of magma transport mechanisms, Abstracts and Programs GSA, 29, A-53, 1997.

Yingst, R.A., and Head, J.W., Multispectral analysis of mare deposits in South Pole-Aitken basin, LPSC, 28th, 1609-1610, 1997.

Yingst, R.A., Head, J.W., Moore, J.M., Chapman, C.R., Pappalardo, R., and the Galileo Imaging Team, Ganymede bright terrain at very high resolution: Geologic structure and regolith processes, LPSC, 28th, 1611-1612, 1997.

Weitz, C.M., R.A. Yingst, M. Minitti, J.W. Head, III, L. Prockter, J.M. Dahl, C.D. Cooper, L. Crumpler, R. Gershman, R. Welch, and the Jet Propulsion Laboratory Team X, South Pole- Aitken Mission (SPAM), LPSC, 28th, 1537-1538, 1997.

Hiesinger, H., U. Wolf, Yingst, R.A., and Head, J.W., A new view of the stratigraphy of mare deposits in Marginis Basin, LPSC, 28th, 571-572, 1997.

Yingst, R.A., Head, J.W., and the Galileo Imaging Team, Mechanisms for transitional groove formation on Ganymede, Abstracts and Programs GSA, 28, A-71, 1996.

Yingst, R. A. and Head, J. W., Characteristics of mare deposits on the eastern limb of the Moon: Implications for magma transport mechanisms, LPSC, 27th, 1479-1480, 1996.

Gilmore, M. S., Head, J. W., Cutts, J. A., Nock, K. T., Collins, G., Crumpler, L. S. and Yingst, R. A., Investigation of the application of aerobot technology at Venus, LPSC, 27th, 417-418, 1996.

Yingst, R. A. and Head, J. W., Characteristics of individual eruptive events on the western limb and farside: Implications for magma ascent and eruption mechanisms, LPSC, 27th, 1477- 1478, 1996.

Yingst, R. A. and Head, J. W., Spatial and areal distribution of lunar mare deposits in Mare Orientale and South Pole/Aitken basin: Implications for crustal thickness relationships, LPSC, 26th, 1539-1540, 1995. Yingst, R. A. and Head, J. W., Characteristics of lunar mare deposits on the western limb and farside and implications for magma transport mechanisms, GSA, A-289, 1995.

Yingst, R. A. and Head, J. W., Lunar mare deposit volumes, composition, age, and location: Implications for source areas and modes of emplacement, LPSC, 25, 1531-1532, 1994.

Head, J. W., Magee, K., Keddie, S., Gilmore, M. and Yingst, R. A., Geology of the Lavinia Planitia area, Venus, LPSC, 25, 529-530, 1994.