Airborne gamma spectrometry information processing method for indicating deep uranium anomalous block

An information processing method, gamma energy spectrum technology, applied in X-ray energy spectrum distribution measurement, etc., can solve problems such as no reflection, weak abnormal information, etc.

Inactive Publication Date: 2018-05-01
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

[0002] With the discovery of the Daying uranium deposit, a deep sandstone-type uranium ore prospecting boom was set off. However, the strong radioactive anomaly of the sandstone uranium ore body and the strong wall rock alteration information have experienced layer-by-layer barriers of wall rock and caprock during the transmission process. , the anomalous information was very weak when it reached the surface, and even did not reflect

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  • Airborne gamma spectrometry information processing method for indicating deep uranium anomalous block

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Embodiment Construction

[0022] An airborne gamma spectrum information processing method for indicating deep uranium anomaly blocks provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The present invention provides an airborne gamma spectrum information processing method indicating deep uranium abnormal blocks, which includes the following steps:

[0024] Step (1), select the exploration target basin, design the working area with a survey line distance of 1000m and a north-south direction according to the target task requirements;

[0025] Step (2), set the measurement period of the airborne gamma spectrum instrument to 1S, calibrate the airborne gamma spectrum measurement system according to the technical specifications, and put the calibration result parameter data into the system;

[0026] Step (3), use the airborne gamma spectrum measurement system calibrated in step (2) to measure the target b...

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Abstract

The invention belongs to the field of radioactive geophysical exploration in uranium exploration, and particularly relates to an airborne gamma spectrometry information processing method for indicating a deep uranium anomalous block. The method comprises steps: 1, a target basin is selected to be explored; 2, calibration result parameter data are inputted to the system; 3, a measuring line distance is designed to measure the target basin; 4, U and Th content scatter data in the third step are subjected to Kriging interpolation; 5, raster data in the fourth step are subjected to sliding treatment; 6, according to the MU and MT data acquired in the fifth step, MT / MU is calculated, the CT in the second step is divided by the MT / MU, and the result is marked as RU; 7, the CU in the second stepis subtracted from the RU in the sixth step, and the calculation result is marked as AU; 8, the SU in the fifth step is divided by the MU, and the result is marked as U<CV>; and 9, the AU in the seventh step and the U<CV> in the eighth step are multiplied, and the result is marked as DI. A deep uranium anomalous block can be indicated effectively, and deep sandstone-type uranium deposit prospecting is guided.

Description

technical field [0001] The invention belongs to the field of radioactive geophysical exploration in uranium ore exploration, and in particular relates to an airborne gamma energy spectrum information processing method for indicating deep uranium abnormal blocks. Background technique [0002] With the discovery of the Daying uranium deposit, a deep sandstone-type uranium ore prospecting boom was set off. However, the strong radioactive anomaly of the sandstone uranium ore body and the strong wall rock alteration information have experienced layer-by-layer barriers of wall rock and caprock during the transmission process. , when it reaches the surface, the anomalous information is very weak, or even not reflected. Aeronautical gamma energy spectroscopy is to install a special aviation gamma energy spectroscopy instrument on the plane, and fly continuous point measurement in the air at a distance of about 200m from the meter. The body effect within the range of flying distance...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/36
CPCG01T1/36
Inventor 李必红何中波秦明宽杨龙泉田渴新赵丹
Owner BEIJING RES INST OF URANIUM GEOLOGY
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