Publications
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Photogeology: Part F: reinterpretations of the northern Nectaris Basin Photogeology: Part F: reinterpretations of the northern Nectaris Basin
Geologic units of the Nectaris Basin rim have been interpreted as partly impact and partly volcanic in origin (refs. 29-4, 29-21, 29-35, 29-38, and 29-39). An exclusively volcanic origin was proposed for the material in the vicinity of the Apollo 16 landing site, slightly northwest of the Nectaris Basin (ref. 29-36). In view of the dominance of breccia and the paucity of volcanic...
Authors
Don E. Wilhelms
Orbital-science investigation: Part L: selected volcanic features Orbital-science investigation: Part L: selected volcanic features
Preliminary examination of Apollo 15 orbital photographs indicates a large number of volcanic features. One area of exceptionally interesting volcanic activity is depicted in figure 25-74. Located approximately at latitude 25° S and longitude 123° E on the lunar far side, this region also is covered by panoramic camera photographs AS15-9954, 9956, 9958, and 9960 and by stereoscopically...
Authors
Mareta N. West
Orbital-science investigation: Part K: geologic sketch map of the candidate Proclus Apollo landing site Orbital-science investigation: Part K: geologic sketch map of the candidate Proclus Apollo landing site
A panoramic camera frame (fig. 25-69) was used as the base for a geologic sketch map (fig. 25-70) of an area near Proclus Crater. The map was prepared to investigate the usefulness of the Apollo 15 panoramic camera photography in large-scale geologic mapping and to assess the geologic value of this area as a potential Apollo landing site. The area is being considered as a landing site...
Authors
Baerbel K. Lucchitta
Preliminary geologic investigation of the Apollo 16 landing site Preliminary geologic investigation of the Apollo 16 landing site
The Apollo 16 landing site in the lunar central highlands encompassed terra plains and adjacent mountainous areas of hilly and furrowed terra. These morphologic units, representing important terrane types in the lunar highlands, had been interpreted as volcanic on most premission geologic maps. However, it became apparent during the mission that there are indeed few or no volcanic rocks...
Authors
W.R. Muehlberger, R. M. Batson, E. L. Boudette, C.M. Duke, R. E. Eggleton, D. P. Elston, A. W. England, V. L. Freeman, M. H. Hait, T.A. Hall, J.W. Head, C. A. Hodges, H. E. Holt, E.D. Jackson, J.A. Jordan, K.B. Larson, D.J. Milton, V. S. Reed, J. J. Rennilson, G. G. Schaber, J.P. Schafer, L. T. Silver, D. Stuart-Alexander, R. L. Sutton, G.A. Swann, R.L. Tyner, G. E. Ulrich, H. G. Wilshire, E.W. Wolfe, J.W. Young
Earthquakes in the oil field at Rangely, Colorado Earthquakes in the oil field at Rangely, Colorado
Seven years of seismic data recorded at the Uinta Basin Observatory were searched for earthquakes originating near an oil field at Rangely, Colorado, located 65 km ESE of the observatory. Changes in the number of earthquakes recorded per year appear to correlate with changes in the quantity of fluid injected per year. Between November 1962 and January 1970, 976 earthquakes were detected...
Authors
James F. Gibbs, John H. Healy, C. Barry Raleigh, John M. Coakley
Photogeology: Part G: structural aspects of Imbrium sculpture Photogeology: Part G: structural aspects of Imbrium sculpture
Apollo 16 metric photographs taken at low to high Sun angles (from approximately 7° to 40°) provide the first stereographic coverage of the distinctive landforms collectively referred to as "Imbrium sculpture" (refs. 29-40 and 29-41). The sculpture consists of a series of nearly linear ridges and troughs extending radially outward for more than 1000 km from the rim of the Imbrium Basin...
Authors
David H. Scott
Orbital-science investigation: Part B: photogrammetric analysis of Apollo 15 records Orbital-science investigation: Part B: photogrammetric analysis of Apollo 15 records
The three cameras—stellar, mapping, and panoramic—together with the laser altimeter, all included in the scientific instrument module (SIM) bay, represent an integrated photogrammatric system with extraordinary potential for extending knowledge of the lunar figure, surface configuration, and geological structure.
Authors
Frederick J. Doyle
Photogeology: Part B: Cayley Formation interpreted as basin ejecta Photogeology: Part B: Cayley Formation interpreted as basin ejecta
The discovery that samples returned from the Cayley Formation at the Apollo 16 landing site consist mainly of nonvolcanic breccias (secs. 6 and 7 of this report) suggests that the hypothesis in which light plains-forming materials may be ejecta from multi-ring basins should be reevaluated (refs 29-15 to 29-17). Improved information on the morphology and distribution of the Cayley...
Authors
R. E. Eggleton, G. G. Schaber
Orbital-science investigation: Part F: regional geology of Hadley Rille Orbital-science investigation: Part F: regional geology of Hadley Rille
Study of the sinuous Hadley Rille (fig. 25-45) was a primary goal of the Apollo 15 mission. Local geology of the rille near the landing site is described in section 5 of this report. Preliminary study of orbital photography from Hasselblad, metric, and panoramic cameras makes possible a description of some regional relationships of the rille. Considerable use is also made of a...
Authors
Keith A. Howard, James W. Head
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 A. Soderblom, Joseph M. Boyce
Preliminary geologic investigation of the Apollo 15 landing site Preliminary geologic investigation of the Apollo 15 landing site
The Apollo 15 lunar module (LM) landed at longitude 03°39'20'' E, latitude 26°26'00'' N on the mare surface of Palus Putredinis on the eastern edge of the Imbrium Basin. The site is between the Apennine Mountain front and Hadley Rille. The objectives of the mission, in order of decreasing priority, were description and sampling of three major geologic features—the Apennine Front, Hadley...
Authors
G.A. Swann, N. G. Bailey, R. M. Batson, V. L. Freeman, M. H. Hait, J.W. Head, H. E. Holt, K. A. Howard, J.B. Irwin, K.B. Larson, W.R. Muehlberger, V. S. Reed, J. J. Rennilson, G. G. Schaber, D.R. Scott, L. T. Silver, R. L. Sutton, G. E. Ulrich, H. G. Wilshire, E.W. Wolfe
Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 8 Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 8
Leg 8 sites are dominated by siliceous-calcareous biogenic oozes having depositional rates of 0.1 to 1.5 cm/1000 years. Conservative constituents of pore fluids showed, as have cores from other pelagic areas of the Pacific, insignificant or marginally significant changes with depth and location. However, in Sites 70 and 71, calcium, magnesium and strontium showed major shifts in...
Authors
F.T. Manheim, F.L. Sayles