A method for identifying mid-ocean ridge hydrothermal regions based on sediment geochemical characteristics

A geochemical and feature recognition technology, applied in the field of identification of mid-ocean ridge hydrothermal areas, can solve problems such as inability to identify inactive hydrothermal areas, and achieve the effects of reducing blindness, reducing work costs, and huge costs

Active Publication Date: 2022-04-01
SECOND INST OF OCEANOGRAPHY MNR
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Problems solved by technology

[0003] The present invention aims at the problem that the existing mainstream tools for mid-ocean ridge sulfide exploration cannot identify inactive hydrothermal areas, and provides a method that can effectively identify active and inactive hydrothermal areas according to the characteristics of mid-ocean ridge sulfides

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  • A method for identifying mid-ocean ridge hydrothermal regions based on sediment geochemical characteristics
  • A method for identifying mid-ocean ridge hydrothermal regions based on sediment geochemical characteristics
  • A method for identifying mid-ocean ridge hydrothermal regions based on sediment geochemical characteristics

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Embodiment Construction

[0034] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples.

[0035] First determine an area to be measured, taking the Southwest Indian Ocean Ridge as an example, the implementation process of the method for identifying the mid-ocean ridge hydrothermal area based on sediment geochemical characteristics in this embodiment is described in detail below (such as figure 1 shown):

[0036] (1) Obtain sediment samples from the investigation area, and dry the sediment samples at 50°C. Pass the dried samples through standard sieves of 20 mesh, 40 mesh, 60 mesh, 80 mesh, 100 mesh, 120 mesh, 160 mesh and 200 mesh respectively, and analyze the composition of the corresponding particle size samples. The composition of trace elements was tested by ICP-MS, and the composition of major elements was analyzed by XRF.

[0037] (2) Use methods such as scatter diagrams and line diagrams to compare the stability of t...

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Abstract

The invention discloses a method for identifying mid-ocean ridge hydrothermal regions based on sediment geochemical characteristics. The invention obtains geochemical composition data by processing sediment samples, and calculates the impact of sediments with different end member compositions on chemical Based on the compositional contribution, the content of elements from hydrothermal sources is obtained, the diffusion distance of elements from hydrothermal sources is estimated, and finally the amount of hydrothermal activities in the survey area and the location of possible output are predicted. The invention has the advantage that it can realize the identification of active and non-active hydrothermal areas in the detection of mid-ocean ridge hydrothermal activities, so as to determine the location of hydrothermal areas more accurately and conveniently, and has the characteristics of convenience and high efficiency.

Description

technical field [0001] The invention relates to a method for identifying a mid-ocean ridge hydrothermal area, in particular to a method for identifying a mid-ocean ridge hydrothermal area by using the geochemical characteristics of sediments. Background technique [0002] Mid-ocean ridge polymetallic sulfides are rich in metal elements such as Cu, Zn, Au, and Ag, and can form large deposits of millions of tons in a certain geological environment. In recent years, countries all over the world have paid great attention to this kind of potential resources. There are two types of mid-ocean ridge hydrothermal areas: active hydrothermal areas and inactive hydrothermal areas. The latter is generally larger in scale, has less related biological activities, and is less protected by the mining environment, so it will be the main direction of mid-ocean ridge sulfide mining in the future. Since the exploration of mid-ocean ridge sulphides is a new field, the related theoretical basis ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01V9/00G01N27/626G01N23/223G16C20/20G01N27/62
CPCG01V9/00G01N27/62G01N23/223G16C20/20
Inventor廖时理陶春辉周建平邓显明倪建宇张国堙王渊顾春华
OwnerSECOND INST OF OCEANOGRAPHY MNR