TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Gravity anomaly maps depict the difference between theoretical computed gravity values and observed gravity values for a region of the earth’s crust.  2, fiche 1, Anglais, - gravity%20anomaly%20map

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 OBS

In the graphical approach [to separation of gravity anomalies], the regional effect must be estimated from plotted profile or contour maps of observed gravity; regional contours are interpolated more or less arbitrarily, being superimposed over the original gravity field.(...) Where the contours at a distance from a local anomaly are quite regular, it is possible to take out the regional trend by drawing lines which connect the undisturbed contours outside the area within which the anomaly is confined(...). Where the smoothed contours cross contours of observed gravity, the differences between the two, which have discrete values at each intersection, are marked and themselves contoured. The resulting map gives residual gravity.  2, fiche 2, Anglais, - smoothed%20contours%20technique

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 OBS

Essentiellement graphique, cette méthode consiste à examiner l'allure d'ensemble des lignes de contour d'iso-intensité et à tracer les courbes lisses qui ne tiennent pas compte des perturbations locales définissant ainsi l'anomalie régionale (...)  1, fiche 2, Français, - m%C3%A9thode%20des%20contours%20adoucis

Fiche 2,  Justifications,  Espagnol