SU51177A1 - Method of seismic mineral exploration - Google Patents

Description

The currently used seismic methods of geological prospecting are based, 1 on their principle, at various rates of propagation of acoustic waves in various geological formations. The invention is intended to use the property of mountainous mountains for exploration and intelligence, and to have a distinct ability to know the power of other oscillations.

Although there are still not enough materials to accurately determine the coefficient of absorption of energy depending on the composition of mountain rocks, it can be argued that the coefficient of energy absorption (energy and sulfide ores) is considerably lower than for any other conditions. - either without 1) specific formations, and that in general this coefficient depends on a whole number of factors, for example, structure, texture, grain of earth and ir. 1 may be considered as a certain size for a given mountain species.

It can be thought that the proposed nodobi method will be especially useful for sweeping coolly ore halls, such as sulphide ones.

Work on this method is carried out as follows. The explosion occurs at any point A (see diagram in Fig. 1); The receiving equipment x, which records the intensity of the iridescent blast wave, is located along an arc of a circle of radius R at a known distance d separate ribrib01) s from each other. The use of limes by seismographs of capacitive type with recording ain1, ai, or by various instrumentalities in the recording of movement of the system (and this does not vary in the curve, as it is used in a sample of its to its own yourd product.

It is obvious that with the viiiHii of the indication of the location of the explosion and iriemnoy apparatus in the open area, each of the receiving devices will be subject to the same conditions in the sense of acceptance, and therefore the receiving wave will be the same for all of them, and each of the iribors will give the same result. the indication (some variations, depending on) on the individual qualities of each device can be limited in 1) and the result 1) and gradation and |} in the same place).

A different case is observed for the intended case, like the one on the other circuit, when the explosion point and one of the seismographs are located directly by the ore 1M body. For this scheme

FIG. 2 shows a plan of the study area; FIG. 3 is a section along the line AB and FIG. 4 - section of the line of the AC. In the last two figures, Zhirpsia, showed the path of the seismic wave, the moving part of the papas (in both cases) and the part of their division from the underlying ore (Fig. 3) or empty rocks (Fig. 4).

It is obvious that the loss of energy, reposable by a seismic wave, will be equal to the passage in sediment in both cases x. It is also clear that the loss of energy during the passage of the lip along the lipid between the ore and the sediment will be less than the loss of the section between the bedrock and the sediment, because the energy absorption coefficient of the minor ore (i .

In the end, a seismic wave, 1; the plane in the plane of the cut ω AB, will have at its exit point and its surface more energy than the seismic waveguide to the plane of the cut along the AC.

Every time the compared receivers compare to themselves, of course, the total energy from all seismic rays, however, the above reasoning for each pair of similar rays is easy to prove that (l seismograph B total irin energy will always be j binie than for ceil : smograf S.

The oscillation intensity of the moving system of seismographs is hormontional to the value of H); Since it is assumed that the KOircrpyn receiver is 1) it is a treasure of the intensity of the current, therefore, the reception over ore B will be higher than the receiver above the barren section C.

The curve for the intrinsic behavior of the device, built but unfolded around the location of the devices, should have the form, iriver ira FIG. 5. For the cases of intermediate, i.e., when in the ore area no one item of the plants is located directly above the location of the ore, this curve is rationalized several times. From this it follows that, with a coating by research along the cutting line, systematically the entire ploidad of the explored area, ore deposits can be found.

The proposed hawser has 11 obi; well-known seismic, the advantage is that it does not require observation and time measurement at all, and it can be applied to the exploration of small ore bodies.

Ire d m ete and z doom t n i.

The method of seismic prospecting of minerals by means of hydrogen mining created explosions in the studied area and then followed it to register the elements of acoustic waves, differing in that. . That, with the share of exploration of fields of unbolt sizes by means of equal numbers of seismographs installed at the same distance from the center of explosion (itpJiGopoB, nan)), register the energy of the irihoDYANTS1X waves and judge the presence of the deposit, its size and the lowest ratio |; energy waves. to the author's certificate of N. I. Sofronov No. 51177

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