In:
GEOPHYSICS, Society of Exploration Geophysicists, Vol. 30, No. 6 ( 1965-12), p. 1133-1134
Kurzfassung:
The foregoing paper (McCulloh, 1965) reports an exhaustive study and extension of a previous investigation bearing the captioned title (Hammer, 1950) of the problem of determining rock densities in the crust of the earth. Hammer reported that laboratory measurements on core samples gave densities which were systematically about 5 percent lower than the values determined by underground gravity measurements in 1945 in the vertical shaft of the Pittsburgh Plate Glass Company limestone mine at Barberton, Ohio. After considering the various factors which might affect the gravity determinations, Hammer concluded that the systematic difference was to be ascribed to nonrepresentative cores and core measurements. McCulloh suggests and adduces convincing evidence that the discrepancy was, in fact, due to an unrecognized gross error of about 12 percent in the gravimeter calibration.
Materialart:
Online-Ressource
ISSN:
0016-8033
,
1942-2156
Sprache:
Englisch
Verlag:
Society of Exploration Geophysicists
Publikationsdatum:
1965
ZDB Id:
2033021-2
ZDB Id:
2184-2
SSG:
16,13
