Laurence Soderblom, PhD (Former Employee)
Science and Products
Filter Total Items: 137
Martian planetwide crater distributions: Implications for geologic history and surface processes Martian planetwide crater distributions: Implications for geologic history and surface processes
Population-density maps of craters in three size ranges (0.6 to 1.2 km, 4 to 10 km, and >20 km in diameter) were compiled for most of Mars from Mariner 9 imagery. These data provide: historical records of the eolian processes (0.6 to 1.2 km craters); stratigraphic, relative, and absolute timescales (4 to 10 km craters); and a history of the early postaccretional evolution of the uplands...
Authors
L.A. Soderblom, C.D. Condit, R.A. West, B.M. Herman, T. Kreidler
Mariner 9-Image processing and products Mariner 9-Image processing and products
The purpose of this paper is to describe the system for the display, processing, and production of image-data products created to support the Mariner 9 Television Experiment. Of necessity, the system was large in order to respond to the needs of a large team of scientists with a broad scope of experimental objectives. The desire to generate processed data products as rapidly as possible...
Authors
E.C. Levinthal, W.B. Green, J.A. Cutts, E.D. Jahelka, R.A. Johansen, M.J. Sander, J.B. Seidman, A.T. Young, L.A. Soderblom
Geological framework of the south polar region of Mars Geological framework of the south polar region of Mars
The first 4 months of Mariner 9 photography of the south polar region are discussed. Three major geological units have been recognized, separated by erosional unconformities. From oldest to youngest they are: cratered terrain, pitted plains, and laminated terrain. The latter unit is unique in occurrence to the polar region, volatiles are probably involved in its origin, and may still be...
Authors
B. Murray, L.A. Soderblom, J.A. Cutts, R.P. Sharp, D.J. Milton, R.B. Leighton
Mariner 9 television reconnaissance of Mars and its satellites: Preliminary results Mariner 9 television reconnaissance of Mars and its satellites: Preliminary results
At orbit insertion on 14 November 1971 the Martian surface was largely obscured by a dust haze with an extinction optical depth that ranged from near unity in the south polar region to probably greater than 2 over most of the planet. The only features clearly visible were the south polar cap, one dark, spot in Nix Olympica, and three dark spots in the Tharsis region. During the third...
Authors
H. Masursky, R. Batson, J.F. McCauley, L.A. Soderblom, R.L. Wildey, M. Carr, D.J. Milton, D.E. Wilhelms, B.A. Smith, T.B. Kirby, J.C. Robinson, C.B. Leovy, G.A. Briggs, T. Duxbury, C.H. Acton, B. Murray, J.A. Cutts, R.P. Sharp, S. Smith, R.B. Leighton, C. Sagan, J. Veverka, M. Noland, J. Lederberg, E. Levinthal, James Pollack, J.T. Moore, W.K. Hartmann, E.N. Shipley, G. De Vaucouleurs, M. Davies
Photogeology: Part A: relative ages of some near-side and far-side terra plains based on Apollo 16 metric photography Photogeology: Part A: relative ages of some near-side and far-side terra plains based on Apollo 16 metric photography
The materials of most light or terra plains predate the lunar maria and postdate the Imbrian event. In the vicinity of the Imbrium Basin, these materials have been called the Cayley Formation (ref. 29-3) but because of the subtle diversity of the terra plains over the near side, Whilhelms and McCauley (ref. 29-4) simply called these materials Imbrian plains (Ip). The age relationships...
Authors
Laurence Soderblom, Joseph Boyce
Science and Products
Filter Total Items: 137
Martian planetwide crater distributions: Implications for geologic history and surface processes Martian planetwide crater distributions: Implications for geologic history and surface processes
Population-density maps of craters in three size ranges (0.6 to 1.2 km, 4 to 10 km, and >20 km in diameter) were compiled for most of Mars from Mariner 9 imagery. These data provide: historical records of the eolian processes (0.6 to 1.2 km craters); stratigraphic, relative, and absolute timescales (4 to 10 km craters); and a history of the early postaccretional evolution of the uplands...
Authors
L.A. Soderblom, C.D. Condit, R.A. West, B.M. Herman, T. Kreidler
Mariner 9-Image processing and products Mariner 9-Image processing and products
The purpose of this paper is to describe the system for the display, processing, and production of image-data products created to support the Mariner 9 Television Experiment. Of necessity, the system was large in order to respond to the needs of a large team of scientists with a broad scope of experimental objectives. The desire to generate processed data products as rapidly as possible...
Authors
E.C. Levinthal, W.B. Green, J.A. Cutts, E.D. Jahelka, R.A. Johansen, M.J. Sander, J.B. Seidman, A.T. Young, L.A. Soderblom
Geological framework of the south polar region of Mars Geological framework of the south polar region of Mars
The first 4 months of Mariner 9 photography of the south polar region are discussed. Three major geological units have been recognized, separated by erosional unconformities. From oldest to youngest they are: cratered terrain, pitted plains, and laminated terrain. The latter unit is unique in occurrence to the polar region, volatiles are probably involved in its origin, and may still be...
Authors
B. Murray, L.A. Soderblom, J.A. Cutts, R.P. Sharp, D.J. Milton, R.B. Leighton
Mariner 9 television reconnaissance of Mars and its satellites: Preliminary results Mariner 9 television reconnaissance of Mars and its satellites: Preliminary results
At orbit insertion on 14 November 1971 the Martian surface was largely obscured by a dust haze with an extinction optical depth that ranged from near unity in the south polar region to probably greater than 2 over most of the planet. The only features clearly visible were the south polar cap, one dark, spot in Nix Olympica, and three dark spots in the Tharsis region. During the third...
Authors
H. Masursky, R. Batson, J.F. McCauley, L.A. Soderblom, R.L. Wildey, M. Carr, D.J. Milton, D.E. Wilhelms, B.A. Smith, T.B. Kirby, J.C. Robinson, C.B. Leovy, G.A. Briggs, T. Duxbury, C.H. Acton, B. Murray, J.A. Cutts, R.P. Sharp, S. Smith, R.B. Leighton, C. Sagan, J. Veverka, M. Noland, J. Lederberg, E. Levinthal, James Pollack, J.T. Moore, W.K. Hartmann, E.N. Shipley, G. De Vaucouleurs, M. Davies
Photogeology: Part A: relative ages of some near-side and far-side terra plains based on Apollo 16 metric photography Photogeology: Part A: relative ages of some near-side and far-side terra plains based on Apollo 16 metric photography
The materials of most light or terra plains predate the lunar maria and postdate the Imbrian event. In the vicinity of the Imbrium Basin, these materials have been called the Cayley Formation (ref. 29-3) but because of the subtle diversity of the terra plains over the near side, Whilhelms and McCauley (ref. 29-4) simply called these materials Imbrian plains (Ip). The age relationships...
Authors
Laurence Soderblom, Joseph Boyce