| Annotation |
Determining the density of the intermediate layer is a necessary procedure when
processing and interpreting gravimetric data. According to the author, studying the
relationship between rock density, relief and gravity anomalies allows us to get closer
to the most accurate determination of the average density of rocks in the intermediate
layer. Not only the time spent processing survey materials, but also the quality of the
geological interpretation depends on the chosen technique for selecting the density
of the intermediate layer. Therefore, the search for optimal algorithms for determining
the average density of rocks composing the intermediate layer is of interest for gravity exploration and is a relevant direction in high-precision surveying. The object of the
study is digital models of anomalies of gravity in the Bug reduction, calculated with
different density of the intermediate layer. The subject of the study is the research of
patterns and correlation relationships between anomalies of gravity, calculated with
different density and morphology of the terrain. The purpose of the study is to clarify
the average density of the intermediate layer rocks in the Buge reduction. The article
considers the actual materials obtained during high-precision field gravel exploration
at one of the geological exploration facilities in Eastern Transbaikalia. The procedure
for processing gravimetric data when calculating the Bug anomaly at a conditional
gravimetric level is described. The results of calculating gravity anomalies with
different density of the intermediate layer are compared, statistics is given, and their
quantitative indicators are analyzed. Digital matrices (grids) of design parameters are
built. The results of the study are clearly illustrated. The level of study elaboration
indicates a number of unresolved issues that are somewhat revealed by the author
as a result of the calculations and analysis of digital grids, graphs and other data
involved in the calculations of terrain corrections. The author has made conclusions
and presented a recommendation for the use of a method for determining the average
density of intermediate layer rocks. |
| Key words |
gravitational exploration,
correction for intermediate
layer, rock density, gravity
anomalies, correlation, terrain,
Nettleton method, reduction
of Bouguer, digital models,
modeling |
| References |
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