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Monocline structure landform automatic identification method

An automatic recognition and structure technology, applied in the field of geographic information technology application, can solve the problem of poor identification of monocline rock structure and landform

Active Publication Date: 2017-05-24
NANJING NORMAL UNIVERSITY
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Problems solved by technology

However, this structural model only considers symmetrical and repetitive structures, and it does not identify well the structure and landform of monoclinic rock formations.

Method used

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  • Monocline structure landform automatic identification method
  • Monocline structure landform automatic identification method
  • Monocline structure landform automatic identification method

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Embodiment Construction

[0063] The effect of the present invention will be further illustrated below in conjunction with the accompanying drawings and by describing an example of automatically identifying monoclinic rock formation structure and topography. Method flow chart of the present invention is as figure 1 shown, including the following steps:

[0064] (1) Adjacency ARG graph generation

[0065] Step 11: Set the angle threshold α to 45°, and the inclination threshold β to 15°;

[0066] Step 12: This embodiment selects the shp format data of the geological decent layer of Zijin Mountain in Nanjing as an example, such as figure 2 As shown in , load the feature layer of the map layer in vector format, and get all the feature sets Stra={s i |i=1,2,3,...,78}. The serial number attribute Id, the stratigraphic age attribute Age, the occurrence dip attribute OccT and the occurrence dip attribute OccA of the storage area elements are stored. The data adopts the sixteen azimuth model to represent ...

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Abstract

The invention discloses a monocline structure landform automatic identification method. The method comprises the following steps: 1, extracting a bedrock stratum object, according to the rule of adjacent, inclination and tendency consistency, establishing a relation for an extracted adjacent object, and drafting an adjacent ARG graph; 2, based on the adjacent ARG graph, according to the adjacent relation, constructing a scene model, and simplifying the scene model; and 3, according to a fold screening rule, screening the simplified scene model, and reserving a model of an incomplete fold structure, i.e., a monocline structure. According to the method, automatic identification of a monocline structure landform is realized.

Description

technical field [0001] The invention relates to the application field of geographic information technology, in particular to a method for automatically identifying monoclinic rock layer structure and geomorphology through spatial structure pattern matching based on digital geological maps. Background technique [0002] The horizontal rock layer is inclined due to the influence of the crustal changes, forming a certain angle with the horizontal plane, and the rock layer is inclined in the same direction, which is called monocline structure. The common monoclinic rock structure landforms include Zhubei Mountain and Shanmian Mountain. The monocline may appear in the damaged anticline wing, or around the destroyed dome structure, the periphery of the basin, tilted horizontal rock formations or tilted faults, etc. The monoclinic strata mainly manifests in three forms: one is a wing of a fold structure; [0003] Traditional structural identification is mainly manual operation, w...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V30/422G06V10/751
Inventor 陈楹李安波姚蒙蒙李梦圆
Owner NANJING NORMAL UNIVERSITY
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