Carl A. Posey, editor(s)
1972, Earthquake Information Bulletin (USGS) (4) 16-17
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Publication Extents
Not all publications have extents, not all extents are completely accurateCarl A. Posey, editor(s)
1972, Earthquake Information Bulletin (USGS) (4) 12-15
Carl A. Posey, editor(s)
1972, Earthquake Information Bulletin (USGS) (4) 12-15
David M. Perkins
Carl A. Posey, editor(s)
1972, Earthquake Information Bulletin (USGS) (4) 18-22
Carl A. Posey, editor(s)
1972, Earthquake Information Bulletin (USGS) (4) 28-29
L.J. Schroder, Wilbur C. Ballance
1972, Report
The U.S. Geological Survey collected 110 water samples from Amchitka Island, Alaska, between January 13 and April 5, 1972. Tritium determinations were made on all samples collected and gross alpha and gross beta/gamma determinations were made on 92 samples. The gross alpha and gross beta determinations when compared with previously...
Robert M. Erickson
1972, Wisconsin Geological & Natural History Survey Information Circular 21
This report supplements the Wisconsin Geological and Natural History Survey, Information Circular No.9, "Trends in Ground-Water Levels in Wisconsin through 1966". It describes, by hydrographs, the ground-water level trends in Wisconsin for the period 1967-1971. All current observation wells with more than three years of record are included; records of...
E.L. Skinner, C. L. R. Holt Jr.
1972, Wisconsin Geological & Natural History Survey Information Circular 22
Ground water, a plentiful and largely underdeveloped resource of Wisconsin, has good to excellent chemical quality in most places. This resource is readily available in most parts of the State for municipal, industrial, and rural uses. In 1970, about 0.5 billion gallons of ground water a day was pumped in...
Charles R. Wood, Herbert N. Flippo Jr., Joseph B. Lescinsky, James L. Barker
1972, Water Resource Report 31
Lehigh County occupies an area of 347 square miles in southeastern Pennsylvania. The northern part of Lehigh County is underlain by the Martinsburg Formation, which consists chiefly of shale and slate. The central part of the county, where most of the population centers are located and much of the urbanization...
Charles W. Poth
1972, Water Resource Report 30
The Martinsburg Formation underlies the northern half of Lehigh and Northampton Counties, and is of Middle and LateOrdovician age. It is bounded on the south by older Ordovician limestone formations and on the north by a ridge-forming conglomerate of Silurian age. Recent mapping has supported a three-part division of the...
Donald H. McLaughlin Jr.
1972, American Association of Petroleum Geologists Bulletin (56) 2240-2259
Four evaporite-bearing stratigraphic zones are known in Cretaceous strata of the Cordillera Oriental of Colombia north and east of Bogota. The easternmost and oldest zone is probably of Berriasian to Valanginian age. The next oldest is probably late Barremian to early Aptian in age. The third appears to be Aptian....
Kenneth F. Fox Jr., C. Dean Rinehart
1972, Bulletin 65
A geochemical exploration program aimed at determining regional patterns of metal distribution as well as pinpointing areas likely to contain undiscovered ore deposits was carried out in north-central Okanogan County, Washington. About 1,000 gully and stream sediment samples were collected from a rectangular area of about 800 square miles. The...
C.D. Rinehart, K. F. Fox Jr.
1972, Bulletin 64
Robert Schoen
1972, Conference Paper, Hydrogeology: section 11 of the 24th International Geological Congress, Montreal 1972
Don E. Wilhelms
1972, Book chapter, Apollo 16 preliminary science report (NASA SP 315)
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....
Robert L. Wildey
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
Approximately 35 reasonably good candidates for specialized photometric studies were found during a thorough examination of the frames exposed by the Apollo 15 metric camera. Of these, the majority was of value in heiligenschein studies (refs. 25-36 to 25-38). A few were of value for limited-interval delineation of the photometric...
Baerbel K. Lucchitta
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
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...
Don E. Wilhelms
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
The Proclus Crater region was mapped to test the value, for photogeologic mapping purposes, of Apollo 15 metric photographs and to estimate the scientific value of the area as a potential landing site. A metric photographic frame (fig. 25-67) serves as a base for a map of the region around...
M. H. Carr
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
The photograph in figure 25-59 and the corresponding map (fig. 25-60) show the geology of part of the lunar surface just east of the Littrow rilles at the eastern edge of Mare Serenitatis. The most striking feature of the region is the extremely low albedo of the area mapped as...
Gordon P. Eaton, Claxton E. Timmons
1972, Report
Observed gravity values, station locations, terrain corrections and Bouguer gravity data are provided in tabular form for approximately 2,000 gravity observations in southeastern Arizona....
Don R. Mabey
1972, Report
Observed gravity values, station locations, terrain corrections, and Bouguer gravity data are provided in tabular form for approximately 1,500 gravity observations in eastern California. Coverage includes Saline Valley, Panamint Valley, Searles Basin, Death Valley, the southern Amargosa Desert and the enclosed and adjoining highlands. These data were used in preparation...
Keith A. Howard, Bradley R. Larsen
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
Many Apollo 15 orbital photographs, particularly those taken at low Sun-elevation angles, reveal grid patterns of lineaments. In some circumstances, the grid pattern is present in areas where structural control seems unlikely. For example, in an oblique view (fig. 25-52), the ejecta blankets of two fresh impact craters seem to...
Keith A. Howard, James W. Head
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
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...
Sherman S.C. Wu, Francis J. Schafer, Raymond Jordan, Gary M. Nakata, James L. Derick
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
Mapping of large areas of the Moon by photogrammetric methods was not seriously considered until the Apollo 15 mission. In this mission, a mapping camera system and a 61-cm optical-bar high-resolution panoramic camera, as well as a laser altimeter, were used. The mapping camera system comprises a 7.6-cm metric terrain...
Donald L. Peterson
1972, Report
Observed gravity values, station locations, terrain corrections, and Bouguer gravity data are provided in tabular form for approximately 2460 gravity observations in south-central Arizona. "These data were used in preparation of -- Peterson, Donald L., 1968, Bouguer gravity map of parts of Maricopa, Pima, Pinal, and Yuma Counties, Arizona: U.S....