Comics |Wang Chong (Hebei Provincial Department of Natural Resources).
Text |Lai Wenxiu, Nie Guoyong (Sichuan Province Fifth Geological Brigade).
Geological explorationIn a broad sense, it can be understood as geological work, and the geological team members are like the "treasure hunters" of the national treasure, through geological exploration, prospecting for the country, in order to ensure the security of national energy resources and serve the national economy and people's livelihood, and play a basic, pioneering and strategic role in the construction of the national economy.
Geological exploration workIt is an applicationGeologyRemote sensing, geological surveying and mapping, geophysical prospecting, geochemical exploration, trench explorationTrenching, drilling, etcSampling and testing and other exploration methods, within a certain areaRocks, stratigraphy, minerals, landformsand other geological conditions to investigate and study. Let's take a look at it through a set of comics
Ours"Treasure Hunter".What kind of way do you carry out geological exploration work?
Geological remote sensing
Geological Remote Sensing – Modern imagery to help.
3D "dimension to see the treasureGeological remote sensingAlso known as remote sensing geology, isComprehensively apply modern remote sensing image technology to study geological laws, conduct geological surveys and resource explorationOne of the methods. From a macro point of view, it focuses on the spectral characteristic images of geological electromagnetic radiation obtained from the air, combined with other relevant geological data, to carry out "3D" analysis and judgment for the mine (ore body), which is convenientUnderstand the geological features and anomalies in an area
Geological mapping
Geological mapping – measuring data for positioningDraw a "treasure map" of minerals
Geological mappingTechnology refers to passingMeasurement and positioning of prospecting projects such as exploration trenches and shafts, using the measurement data to draw the underground treasure "treasure map", for:Provide a basis for subsequent mining and utilization work
Geochemical exploration
Geochemical explorationChemical prospecting to analyzeTracing the gathering place of the "treasure".
Geochemical explorationi.e. geochemical exploration, yesStudy the distribution of elements on the surface and undergroundFind out the distribution law, delineate the chemical anomaly, narrow the prospecting target area, and guide the prospectingMethods of exploration. This is to see if there is a local "treasure gathering" phenomenon on the earth, and to make use of itThe tracer role of the elementsThe "Roots-Seeking" approach.
Geophysical prospecting
Geophysical prospecting - physical prospecting to do "CT".
Analyze the state of the treasureGeophysical prospectingThat is, geophysical exploration, which is based on rocks, ores (or strata) and surrounding rocksPhysical propertiesSuch as density, magnetism, electricality, etcAnalysis of existing geological data, which is equivalent to a "CT examination" of underground treasuresDelineate geophysical anomalies and speculate the morphology of deep geological bodiesA method of exploration.
Trenching
Trenching - the surface of the grooved tunnelAnalyze the condition of the topsoil
TrenchingIt's to make the geology team betterObservation of geological phenomena, study of stratigraphic profiles, mineralization laws and taking rock and mineral samples, excavation at the surface, and vertical ore-bearing layers, ore-bearing belts, tectonic belts, and the strike of the surrounding rockExpose the bedrockengineering methods. 6
Pit probing
Pit exploration - excavation of shafts and roadways.
Insight into the deep connotation of "treasure".
Pit probingYesExcavating shafts and roadways on the surfaceDisclosureGeological phenomena, so that the geological team members are directExploration methods to observe the spatial distribution of strata, rock mass, fault fracture zones, etc。Compared with the "minimally invasive" nature of drilling, pit exploration is a "major operation" that allows geological team members to observe the geological structure more directly, is accurate and reliable, and is easy to sketch, from which undisturbed rock and soil samples can be taken and used for large-scale in-situ testing. That's rightThe spatial distribution characteristics and engineering properties of fault fracture zones, soft mud interlayers and sliding surfaces (zones) were studiedetc., which are more significant. 7
Drilling
Drilling – drilling rigs to the surface to drill holes.
Minimally invasive puncture" to take a sampleDrillingrefers to the useThe drill rig drills down from the surface to form a cylindrical hole in the ground, removes the columnar core, identifies and divides the lithology, and takes samplesmethod. With this "minimally invasive puncture" technique,Determine the deep changes in the geological body
Sampling and detection
Sampling and testing – microscopic treasures good and bad.
The test gives a "transcript".
Sampling and detectionrefers to the use of itTest equipment for rock, mineral, soil, water samplesConductedObserve, measure, test, analyze to confirm its nature, characteristics, state, quantityand other aspects of the information process. It is the appraisal report of the "treasure", yesDetermine the mine versus the non-mineimportant parameters.
There are many natural resource management points, wide coverage and strong professionalism
To the average person, our work is also mysterious
What do you do in the field of natural resources?
Feel free to draw or write to us and tell us about your daily work.
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Talk about our natural resources survey and monitoring work jointly produced: China Natural Resources News Sichuan Provincial Bureau of Geology and Mineral Exploration and Development.
Supported by: Hebei Provincial Department of Natural Resources.
New **Editor: Lai Wenxiu (intern).
Preliminary review: Zhao Lei review: Cheng Xiujuan review: Zhao Xiaotao
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