A device for analyzing and detecting the alteration intensity of surrounding rocks in breccia-type gold deposits

Abstract

This utility model discloses a device for analyzing and detecting the alteration intensity of breccia-type gold deposit surrounding rocks. It includes a disc-shaped base with a sample placement slot at its center and an annular colorimetric card slot on the outer side of the base, containing an annular colorimetric card. A cover is hinged to the outer side of the base, with an annular groove on the cover containing a rotating ring with a visual eyepiece mounted on it. Breccia fragment samples are placed in the sample placement slot and compared with the annular colorimetric card to quickly analyze the alteration intensity. After determining the alteration grade on-site (e.g., brick red = strong hematite mineralization), the location of the gold mineralization center in the porphyry body is directly correlated, shortening the target area delineation time by more than 50%. By comparing the alteration data of the Qiyugou breccia periphery, the hydrothermal migration path can be traced, predicting concealed ore bodies.

Description

Technical Field

[0001] This utility model relates to the field of geological and mineral exploration technology, specifically to a device for analyzing and detecting the alteration intensity of surrounding rocks in breccia-type gold deposits. Background Technology

[0002] Breccia-type gold deposits are a unique industrial type of gold deposit. They were first discovered in China in the mid-1970s in Qiyugou area of ​​Songxian County, Henan Province, and Tuanjiegou in Heilongjiang Province. Since the mid-to-late 1980s, breakthrough discoveries have been made in other parts of China, such as Guilaizhuang in Shandong Province, Axi in Xinjiang, Zijinshan in Shanghang, Fujian Province, Yangjishan in Ruichang, Jiangxi Province, Longtoushan in Guigang, Guangxi Province, Shuangwang in Taibai County, Shaanxi Province, Changkeng in Gaoyao County, Guangdong Province, and Getang in Anlong County, Guizhou Province. Most of these deposits are of medium to large scale and have become an important type of gold deposit in China and even the world.

[0003] Breccia-type gold deposits are an important type of gold deposit, and the intensity of wall rock alteration is closely related to mineralization. The Qiyugou mining area exhibits both porphyry-type (J46) and volcanic-subvolcanic-type (J2) breccia-type gold deposits, with significant differences in alteration assemblages between the two types (e.g., the porphyry system is dominated by silicification-sericite alteration, while the subvolcanic system is characterized by chlorite-hematite mineralization). Traditional laboratory spectroscopic analysis cannot quickly distinguish the alteration genesis. Existing alteration intensity detection relies on laboratory analysis of rock samples (such as electron probe microanalysis and shortwave infrared spectroscopy), but the spatial distribution of alteration zones in underground mining faces (such as the J4 ore body and the 189 granite body of Jinyuan Company) is complex, and there are no standardized rapid detection tools on site, resulting in low efficiency in locating blind ore bodies. Therefore, we propose a device for analyzing and detecting the alteration intensity of the wall rock in breccia-type gold deposits. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a device for analyzing and detecting the alteration intensity of breccia-type gold deposit surrounding rocks. The device uses a sample placement slot to place collected breccia fragment samples and compares them with the outer ring colorimetric card to quickly analyze the alteration intensity, improve the efficiency of blind ore body location, and shorten the analysis and detection time, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for analyzing and detecting the alteration intensity of breccia-type gold deposit surrounding rock, comprising a disc-shaped base, a sample placement groove at the center of the base, an annular colorimetric card groove on the outer side of the base, and an annular colorimetric card placed in the colorimetric card groove; a cover is hinged to the outer side of the base, an annular groove is formed on the cover, a rotating ring is rotatably disposed in the annular groove, and a viewing mirror is disposed on the rotating ring.

[0006] As a preferred embodiment of this utility model, a lighting lamp is provided in the middle of the inner surface of the cover, and an annular light strip is provided on the outer side of the inner surface of the cover, with a rotating ring disposed between the lighting lamp and the light strip.

[0007] As a preferred embodiment of this utility model, a lighting switch corresponding to a lighting lamp is provided in the middle of the outer surface of the cover, and a light strip switch corresponding to a light strip is provided on the outer side of the outer surface of the cover.

[0008] As a preferred embodiment of this utility model, a ratchet is provided on the outer side of the rotating ring, a pawl corresponding to the ratchet is rotatably provided in the annular groove, and a fixing block is fixedly provided in the annular groove. A telescopic rod is provided on the side surface of the fixing block, and a pressure block for pressing the pawl is fixedly provided at the end of the telescopic rod. A spring is provided between the pressure block and the fixing block, and the spring is sleeved on the outer side of the telescopic rod.

[0009] As a preferred embodiment of this utility model, a toggle rod is fixedly provided on the side surface of the pressure block, and a sliding groove corresponding to the toggle rod is provided on the cover, with the top end of the toggle rod extending out of the sliding groove.

[0010] As a preferred embodiment of this utility model, the peripheral surface of the base is evenly hinged with a number of L-shaped buckles, the inner surface of the buckles is provided with a locking block, and the upper surface edge of the cover is evenly provided with a number of locking strips corresponding to the locking blocks.

[0011] Compared with existing technologies, the advantages of this invention are as follows: By placing collected breccia fragment samples in a sample placement trough and comparing them with the outer ring colorimetric card, the alteration intensity can be quickly analyzed. After determining the alteration grade on-site (e.g., brick red = strong hematite mineralization), the location of the gold mineralization center of the porphyry body can be directly correlated, shortening the target area delineation time by more than 50%. By comparing the alteration data of the outer periphery of the Qiyugou J8 breccia, the hydrothermal migration path can be traced, and the concealed ore body can be predicted. A single detection takes less than three minutes, the overall weight of the device is less than 400g, and a single person can complete the alteration mapping of a 100-meter underground profile.

[0012] The ring color chart uses a multi-level alteration color chart, which is divided into two color gradients according to the genetic type: porphyry type (grayish white → silver gray) and subvolcanic rock type (light pink → brick red). The mineralization system can be quickly distinguished by rotation comparison.

[0013] By rotating the eyepiece via the rotating ring, the sample can be compared with a single color area of ​​the colorimetric card, improving the accuracy of alteration intensity analysis. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2This is a side view of the structure of this utility model;

[0016] Figure 3 This is a front view structural diagram of the present utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the base of this utility model;

[0018] Figure 5 This is a schematic diagram of the rotating ring and ratchet of this utility model.

[0019] In the diagram: 1. Base, 2. Colorimetric card slot, 3. Colorimetric card, 4. Sample placement slot, 5. Cover, 6. Rotating ring, 7. Eyepiece, 8. Lighting lamp, 9. Light strip, 10. Lighting lamp switch, 11. Light strip switch, 12. Ratchet, 13. Pad, 14. Pressure block, 15. Fixing block, 16. Telescopic rod, 17. Spring, 18. Actuating rod, 19. Slide groove, 20. Buckle, 21. Locking strip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a device for analyzing and detecting the alteration intensity of breccia-type gold deposit surrounding rocks, including a disc-shaped base 1. A sample placement groove 4 is formed at the center of the base 1, with a rubber buffer pad embedded inside the groove. The size of the sample placement groove is adapted to breccia fragments (Φ10-80mm). An annular colorimetric card groove 2 is formed on the outer side of the base 1, and an annular colorimetric card 3 is placed inside the groove 2. The annular colorimetric card 3 uses a multi-level alteration color chart, with a two-color gradient based on genetic type: porphyry type (grayish-white → silver-gray) and subvolcanic rock type (light pink → brick red). The mineralization system can be quickly distinguished by rotational comparison.

[0022] A cover 5 is hinged to the outer side of the base 1. An annular groove is formed on the cover 5, and a rotating ring 6 is rotatably mounted inside the annular groove. An eyepiece 7 is mounted on the rotating ring 6, and the position of the eyepiece 7 covers part of the sample placement groove 4 and the annular colorimetric card 3. By rotating the eyepiece 7, the sample can be compared with a single color area of ​​the colorimetric card, thereby improving the accuracy of the alteration intensity analysis.

[0023] The collected breccia fragments are placed in sample placement slot 4 and analyzed by comparison with the annular colorimetric card 3 around them, thereby quickly analyzing the alteration intensity. After determining the alteration grade on-site (e.g., brick red = strong hematite mineralization), the location of the gold mineralization center of the porphyry body is directly correlated, shortening the target area delineation time by more than 50%. By comparing the alteration data of the outer periphery of the Qiyugou J8 breccia, the hydrothermal migration path can be traced, and the concealed ore body can be predicted. A single detection takes less than three minutes, the overall weight of the device is less than 400g, and a single person can complete the alteration mapping of a 100-meter profile underground.

[0024] In a preferred embodiment, an illumination lamp 8 is provided in the middle of the inner surface of the cover 5, and an annular light strip 9 is provided on the outer side of the inner surface of the cover 5. A rotating ring 6 is positioned between the illumination lamp 8 and the light strip 9. When observing and comparing samples and color charts through the eyepiece 7 after the cover 5 is closed, interference from external light sources can be avoided.

[0025] Both the lighting lamp 8 and the light strip 9 use D65 light source (simulating natural light 6500K) to avoid metamerism.

[0026] In a further preferred embodiment, a lighting switch 10 corresponding to the lighting lamp 8 and a built-in battery powering it are disposed in the middle of the outer surface of the cover 5. A light strip switch 11 corresponding to the light strip 9 and a built-in battery powering it are disposed on the outer side of the outer surface of the cover 5. The two built-in batteries and the switch 10 are independently disposed and control the switch respectively. The built-in battery can be a commonly used replaceable dry cell battery or a rechargeable lithium-ion battery, etc.

[0027] The built-in battery, lighting lamp 8, and light strip 9 used in this application are all commonly used electronic components in the prior art. Their specific structures, working principles, control methods, and circuit connections are all well-known technologies and will not be described in detail here.

[0028] In the preferred embodiment, a ratchet 12 is provided on the outer side of the rotating ring 6, and a pawl 13 corresponding to the ratchet 12 is rotatably disposed within the annular groove. The ratchet structure ensures that the color card is accurately aligned with the visual lens 7, avoiding errors caused by difficulty in alignment during manual rotation, and improving the recognition accuracy rate by >90%.

[0029] A fixing block 15 is fixedly installed inside the annular groove. A telescopic rod 16 is installed on the side surface of the fixing block 15. A pressure block 14 for pressing the pawl 13 is fixedly installed at the end of the telescopic rod 16. A torsion spring is installed at the rotating end of the pawl 13. A spring 17 is installed between the pressure block 14 and the fixing block 15, and the spring 17 is sleeved on the outside of the telescopic rod 16. A toggle rod 18 is fixedly installed on the side surface of the pressure block 14. A groove 19 corresponding to the toggle rod 18 is opened on the cover 5, and the top end of the toggle rod 18 extends out of the groove 19. When only the ratchet and pawl are used, the rotating ring 6 can only rotate in one direction. By moving the toggle rod 18, the pressure block 14 can be pushed, thereby causing the pawl 13 to move upward under the action of the torsion spring and separate from the ratchet 12. This allows the operator to rotate the rotating ring 6 in the opposite direction, thereby resetting the eyepiece 7 after over-rotation without having to rotate it another full turn, making the operation faster and simpler.

[0030] Optionally, the base 1 has several L-shaped latches 20 evenly hinged on its peripheral surface. After the cover 5 is put on, the latches 20 can be rotated to fasten the cover 5, preventing it from opening and ensuring stability during the analysis and testing process.

[0031] Alternatively, the inner surface of the latch 20 is provided with a locking block, and a number of locking strips 21 corresponding to the locking block are evenly provided at the edge of the upper surface of the cover 5. When the latch 20 fastens the cover 5, the locking block locks the locking strips 21, which can further improve the fixing effect on the cover 5.

[0032] Optionally, several transparent connecting rods (not shown in the attached figure) are evenly arranged on the inner side of the cover 5 corresponding to the annular groove. These connecting rods are used to connect the central circular plate of the cover 5 and the outer annular part. The connecting rods are very narrow and are located between adjacent color cards of the colorimetric card 3. They are also made transparent to minimize the impact on the alteration intensity of the surrounding rock of the breccia-type gold deposit through colorimetric analysis.

[0033] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the intensity of wall rock alteration of a gold ore of the conglomerate type, comprising a disc-shaped base (1), characterized in that: The base (1) has a sample placement groove (4) at its center and an annular colorimetric card groove (2) on its outer side. An annular colorimetric card (3) is placed in the colorimetric card groove (2). A cover (5) is hinged to the outer side of the base (1). An annular groove is provided on the cover (5). A rotating ring (6) is rotatably provided in the annular groove. A viewing mirror (7) is provided on the rotating ring (6).

2. The device according to claim 1, wherein the device is characterized by: A lighting lamp (8) is provided in the middle of the inner surface of the cover (5), and an annular light strip (9) is provided on the outer side of the inner surface of the cover (5). A rotating ring (6) is provided between the lighting lamp (8) and the light strip (9).

3. The device according to claim 2, characterized in that: A lighting switch (10) corresponding to the lighting lamp (8) is provided in the middle of the outer surface of the cover (5), and a light strip switch (11) corresponding to the light strip (9) is provided on the outer side of the outer surface of the cover (5).

4. The device according to claim 1, wherein the device is characterized by: A ratchet (12) is provided on the outer side of the rotating ring (6), and a pawl (13) corresponding to the ratchet (12) is rotatably provided in the annular groove. A fixing block (15) is fixedly provided in the annular groove. A telescopic rod (16) is provided on the side surface of the fixing block (15). A pressure block (14) for pressing the pawl (13) is fixedly provided at the end of the telescopic rod (16). A spring (17) is provided between the pressure block (14) and the fixing block (15). The spring (17) is sleeved on the outside of the telescopic rod (16).

5. The device according to claim 4, wherein the device is characterized by: The side surface of the pressure block (14) is fixedly provided with a toggle rod (18), and the cover (5) is provided with a groove (19) corresponding to the toggle rod (18), with the top of the toggle rod (18) extending out of the groove (19).

6. The device according to claim 1, characterized in that: The base (1) has several L-shaped buckles (20) evenly hinged on its peripheral surface. The inner surface of the buckle (20) is provided with a locking block. The upper surface edge of the cover (5) is evenly provided with several locking strips (21) corresponding to the locking blocks.

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