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Locating method of paleochannel-type sandstone uranium deposits

A positioning method and channel sand body technology, applied in the field of uranium mineralization prediction, can solve the problems of high cost and time-consuming positioning of uranium ore bodies, and achieve the effects of rapid popularization and application, accurate positioning, and reduction of blindness

Active Publication Date: 2017-04-26
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

The whole process takes a long time, more than 10 years; the cost of locating uranium ore bodies is high, and it often takes hundreds of thousands of meters of drilling work to delineate a uranium ore body

Method used

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  • Locating method of paleochannel-type sandstone uranium deposits
  • Locating method of paleochannel-type sandstone uranium deposits
  • Locating method of paleochannel-type sandstone uranium deposits

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0045] In this embodiment, a method for locating paleochannel sandstone uranium deposits provided by the present invention is used to locate paleochannel uranium deposits in the middle of Erlian Basin.

[0046] Such as figure 1 As shown, the present invention provides a method for locating paleochannel sandstone uranium deposits, the method comprising the following steps:

[0047] Step (1) Identify whether the paleo-channel in the geological area to be located belongs to the uranium-producing paleo-channel

[0048]By judging the lithology, scale, sedimentary discontinuity period and paleoclimate of each paleo-channel in the geological area to be located, identify the uranium-producing paleo-channel in the geological area of ​​the uranium deposit.

[0049] For example, through 1 / 500,000 belt drilling area survey and 1 / 250,000 area survey data...

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Abstract

The invention belongs to the technical field of uranium mineralization prediction, and particularly discloses a paleochannel type sandstone-type uranium ore deposit positioning method. The method includes the following steps of firstly, recognizing whether a uranium ore geological region to be positioned belongs to a uranium production paleochannel or not; secondly, if yes, delineating a uranium production paleochannel section in the region; thirdly, delineating a soil radon gas abnormal area of the uranium production paleochannel section delineated in the second step; fourthly, overlapping the uranium production paleochannel section delineated in the second step with the soil radon gas abnormal area delineated in the third step, thereby positioning a paleochannel type sandstone-type uranium mineralization favorable area, namely, the overlapping area of the uranium production paleochannel section and the soil radon gas abnormal area. The method has the advantages of being high in positioning accuracy, high in ore finding efficiency, rapid and low in cost.

Description

technical field [0001] The invention belongs to the technical field of uranium mineralization prediction, and in particular relates to a method for locating paleochannel sandstone uranium deposits. Background technique [0002] Paleochannel-type sandstone uranium deposits have low mineralization grade (0.01%-0.2%), are produced in groups and belts, have large total reserves, and can be exploited by in-situ leaching, etc., and have good prospecting potential in the world. It has become an important type of uranium prospecting at home and abroad. In the domestic and foreign paleochannel-type sandstone uranium deposit positioning technology methods, the sedimentary system and lithological characteristics of the target layer are preliminarily identified mainly through 1 / 500,000 zone drilling survey and 1 / 250,000 area survey; through general survey and preliminary survey, Combined with earthquakes, the uranium-producing paleo-channel section is roughly determined; through detail...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V9/00G01N33/24
Inventor 刘武生史清平李必红付建平贾立城陈华张梓楠
Owner BEIJING RES INST OF URANIUM GEOLOGY
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