Gravitational Anomalies

Gravitational Anomalies

 

the difference between the observed force of gravity and its theoretical (normal) value at the same point, to which a correction is introduced allowing for the dependence of the force of gravity on the height of the observation point. Depending on the corrections introduced, several types of anomalies are distinguished. If the decrease in the force of gravity with height in free space is considered, with an average gradient taken over the entire earth of 0.3086 milligal/m (1 milligal = 10-3 cm/sec2), then the anomaly is called a gravitational anomaly in free air (or Faye anomaly); these anomalies are used in studying the earth’s figure in geodetic gravimetry. If, in addition, the attraction exerted by a uniform layer of mass between the level of the observation point and sea level is considered, the gravitational anomaly is called a Bouguer anomaly. Since Bouguer anomalies reflect the nonuniform density of rock in the earth’s topmost layer, they are employed in the solution of geological prospecting problems.

M. U. SAGITOV

References in periodicals archive ?
Scientists studied the gradients in gravity data from GRAIL, which revealed a rectangular shape in resulting gravitational anomalies.
It has become increasingly evident through the observation of spiral galaxies, the expanding universe and gravitational anomalies, that Newton's inverse square law is an incomplete theory of gravity.
During the GRAIL mission, the twin probes have accomplished more than 100 tasks orbitting the Moon and measured gravitational anomalies, proving there are more erosion on the Moon's surface than it is thought.
The recommendations for using the automated fitting algorithms and software are developed on examples of modelling of (a) a gravitational field along regional seismic profiles, (b) configurations of intrusive massifs and ore objects, (c) airborne magnetic measurements along regional geotransects at different altitudes and recalculated gravitational anomalies on different levels, (d) separate ore bodies in an iron-ore deposit, and (e) gravitational and magnetic fields along geological cross-sections during large-scale geological mapping.
This is a theory of space, and has explained bore hole anomalies, supermassive black hole masses in spherical galaxies and globular clusters, flat rotation curves of spiral galaxies, and other gravitational anomalies.
Amor and his colleagues haven't pinned down where the ancient impact occurred, but gravitational anomalies about 15 kilometers offshore make that spot a prime candidate.
It has been discovered that Newton's theory of gravity [1] missed a significant dynamical process, and a uniquely determined generalisation to include this process has resulted in the explanation of numerous gravitational anomalies, such as bore hole g anomalies, predictable black hole masses, flat spiral-galaxy rotation curves, and the expansion of the universe, all without dark matter and dark energy [2-4].
Other geological processes can produce magnetic and gravitational anomalies, but when these two hallmarks occur together, or are backed up with other geologic evidence, it's a strong hint that scientists may have found an ancient impact site.
In particular, this Letter gives results of our theoretical and experimental research of gravitational anomalies during total solar eclipses and planetary line-up, and compares interpretations of the data with the work of Shnoll.
This dynamics then explains numerous gravitational anomalies, such as the borehole g anomaly, the so-called "dark matter" anomaly in the rotation speeds of spiral galaxies, and that the effective mass of the necessary black holes at the centre of spherical matter systems, such as globular clusters and spherical galaxies, is [alpha]/2 times the total mass of these systems.