In its western and southwestern margin the positive gravity anomaly
in the central part of Brno massif (surroundings of Brno) relatively well corresponds with the tectonic zone of the Boskovice Furrow (system Diendorf-Cebin, its eastern topographic part) with the transverse zone which intensively fragmented block structure along the rivers Jihlava and Oslava and the zone southeast of the river Bobrava defined by dense complexes of morpholineaments in rocks of various ages and by arrangement and typology of appropriate segments of the valley network.
Data from ground gravity do not have a uniform distribution, although the generation of maps of gravity anomaly
is possible thanks to the applications of several interpolation methods.
estimates were derived from the EGM-96 gravity model evaluated to spherical harmonic degree and order 90 to emphasize the more robust qualities of the EGM-96 measurements.
One of the areas showed a type of gravity anomaly
, known as a low, that is consistent with the Silver Cloud area and Northwest Canyon target zones where miners Teck and the former Placer Dome drilled nearly 158 grams per ton gold of over five metres in the past.
The updated NKG gravity database (consisting of more than 500 000 points from participating countries) was used for gravity anomaly
field and geoid modelling computations over the Nordic and Baltic countries and adjacent areas (Mardla et al.
GRAIL measurements over the center of such a crater will show a positive gravity anomaly
(more mass) compared to outside the crater due to a 3-km-thicker pile of high-density mare lavas inside.
The model is promising for evaluating the gravity anomaly
at a specific point where there is no measured value.
The models may not be geologically realistic, but usually approximate similarity to the gravity anomaly
causative masses is sufficient for quantitative and qualitative interpretations and modelling.
At the Longmenshan fault zone, a prominent positive gravity anomaly
(enclosed by red dashed lines in Fig.
In the KTH method, the Stokes integration is applied directly to the gravity anomaly