مدل سازي ناهنجاري پرتوزا با استفاده از داده هاي ماهواره اي و پرتوسنجي در سامانه ي اطلاعات جغرافيايي (GIS): مطالعه موردي در غرب استان كرمان

Modeling radioactive anomalies using satellite and the radiometry data in geographic information system (GIS): a case study in west province Kerman

اﻣﺮوزه ﯾﮑﯽ از ﻧﯿﺎزﻫﺎي ﺿﺮوري ﺟﺎﻣﻌﻪﻫﺎي ﺑﺸﺮي ﻧﯿﺎز ﺑﻪ اﻧﺮژي اﺳﺖ. ﮐﺸﻮر ﻣﺎ ﻧﯿﺰ در راﺳﺘﺎي ﺻﻨﻌﺘﯽﺷﺪن و ﺗﺄﻣﯿﻦ اﻧﺮژي، ﺑﻪ ﻣﻨﺒﻊﻫﺎي ﻧﻮﯾﻦ ﺗﺄﻣﯿﻦ اﻧﺮژي ﯾﻌﻨﯽ ﻧﯿﺮوﮔﺎهﻫﺎي ﻫﺴﺘﻪاي روي آورده اﺳﺖ. ﺑﻪ اﯾﻦ ﺗﺮﺗﯿﺐ اﮐﺘﺸﺎف، ﺣﻔﻆ و ﺣﺮاﺳﺖ از ﻣﻨﺒﻊﻫﺎي اوراﻧﯿﻢ ﺑﻪ ﻋﻨﻮان ﺧﻮراك ﭼﻨﯿﻦ ﻧﯿﺮوﮔﺎهﻫﺎﯾﯽ از اﻫﻤﯿﺖ ﺑﻪﺳﺰاﯾﯽ ﺑﺮﺧﻮردار اﺳﺖ؛ وﻟﯽ ﻣﺘﺄﺳﻔﺎﻧﻪ ﺑﻪ دﻟﯿﻞ ﺗﺤﺮﯾﻢﻫﺎي ﻋﻠﻤﯽ و ﻓﻨﯽ ﮐﺸﻮرﻫﺎي ﺗﻮﺳﻌﻪﯾﺎﻓﺘﻪ از ﺟﻤﻠﻪ اﻣﺮﯾﮑﺎ اﮐﺘﺸﺎف ﻣﻨﺎﺑﻊ راﻫﺒﺮدي اوراﻧﯿﻢ در ﮐﺸﻮر ﻣﺎ ﺑﻪ ﮐﻨﺪي ﭘﯿﺶ ﻣﯽرود. از اﯾﻦرو ﻟﺰوم ﺧﻮدﺑﺎوري در ﻋﺮﺻﻪي اﮐﺘﺸﺎف و ﺣﻔﻆ و ﺣﺮاﺳﺖ از اﯾﻦ ذﺧﺎﯾﺮ راﻫﺒﺮدي ﺑﯿﺶ از ﭘﯿﺶ اﺣﺴﺎس ﻣﯽﺷﻮد. در اﯾﻦ ﭘﮋوﻫﺶ ﺑﻪ اﮐﺘﺸﺎف ﻋﻨﺼﺮﻫﺎي ﭘﺮﺗﻮزا در ﻏﺮب اﺳﺘﺎن ﮐﺮﻣﺎن ﭘﺮداﺧﺘﻪ ﺷﺪهاﺳﺖ. ﻧﺎﺣﯿﻪي ﻣﻮرد ﻣﻄﺎﻟﻌﻪ در160 ﮐﯿﻠﻮﻣﺘﺮي ﺟﻨﻮب ﻏﺮﺑﯽ ﺷﻬﺮ ﮐﺮﻣﺎن و 40 ﮐﯿﻠﻮﻣﺘﺮي ﺷﻤﺎل ﺳﯿﺮﺟﺎن واﻗﻊ اﺳﺖ. اﯾﻦ ﻣﺤﺪوده ﺑﯿﻦ ﻃﻮلﻫﺎي ﺟﻐﺮاﻓﯿﺎﯾﯽ ''00 '30 °55 ﺗﺎ 00 '00 °56 ﺷﺮﻗﯽ و ﻋﺮضﻫﺎي ﺟﻐﺮاﻓﯿﺎﯾﯽ 00 '30 °29 ﺗﺎ 00 '00 °30 ﺷﻤﺎﻟﯽ و در ﺑﺮﮔﻪي زﻣﯿﻦﺷﻨﺎﺳﯽ 1:100,000 ﭘﺎرﯾﺰ ﻗﺮار دارد. در اﯾﻦ ﭘﮋوﻫﺶ از روشﻫﺎﯾﯽ ﻧﻈﯿﺮ ﻓﯿﻠﺘﺮ ﺳﺎزﮔﺎر ﯾﺎﻓﺘﻪ ﺗﻨﻈﯿﻢ اﺧﺘﻼط و ﺗﺼﻮﯾﺮ )اﻓﮑﻨﺶ( زﯾﺮﻓﻀﺎي ﻣﺘﻌﺎﻣﺪ ﺑﻪ ﻣﻨﻈﻮر ﭘﺮدازش دادهﻫﺎي ﺳﻨﺠﺶ از دور، و روشﻫﺎي ﺗﮏ ﻣﺘﻐﯿﺮه ﺑﻪ ﻣﻨﻈﻮر ﭘﺮدازش دادهﻫﺎي ﭘﺮﺗﻮﺳﻨﺠﯽ اﺳﺘﻔﺎده ﺷﺪ. ﻧﺘﯿﺠﻪﻫﺎ ﺑﯿﺎنﮔﺮ ﻗﺪرت ﺑﺎﻻي ﻣﺎﻫﻮارهي ﺳﻨﺘﯿﻨﻞ2 در ﺑﺎرزﺳﺎزي دﮔﺮﺳﺎﻧﯽﻫﺎي ﻣﺮﺗﺒﻂ ﺑﺎ ذﺧﯿﺮهﻫﺎي اوراﻧﯿﻢ اﺳﺖ. ﻫﻢﭼﻨﯿﻦ ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ زﻣﯿﻦﺷﻨﺎﺳﯽ ﻣﻨﻄﻘﻪ و ﻫﺎﻟﻪﻫﺎي دﮔﺮﺳﺎﻧﯽ و ﺑﺮرﺳﯽ ﺳﻄﺢ ﻣﻘﻄﻊﻫﺎ، روش ﻓﯿﻠﺘﺮ ﺳﺎزﮔﺎر ﯾﺎﻓﺘﻪ ﺗﻨﻈﯿﻢ اﺧﺘﻼط ﺑﻪ ﺧﻮﺑﯽ ﺗﻮاﻧﺴﺘﻪ اﺳﺖ در ﺗﺼﻮﯾﺮﻫﺎي ﺳﻨﺘﯿﻨﻞ2 دﮔﺮﺳﺎﻧﯽ آرژﯾﻠﯽ را ﺑﺎرز ﻧﻤﺎﯾﺪ. اﯾﻦ ﺗﺼﻮﯾﺮﻫﺎ ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ زﻣﯿﻦﺷﻨﺎﺳﯽ ﻧﺎﺣﯿﻪ از ﻗﺪرت ﻣﻨﺎﺳﺒﯽ ﺑﺮاي ﺗﻔﮑﯿﮏ ﻣﺎﺳﻪ ﺳﻨﮓﻫﺎ و ﺳﻨﮓﻫﺎي ﺳﯿﻠﯿﺴﯽ از واﺣﺪﻫﺎي دﯾﮕﺮ ﺑﺮﺧﻮردار ﻫﺴﺘﻨﺪ. در ﭘﺎﯾﺎن ﻧﺎﺣﯿﻪﻫﺎي اﻣﯿﺪﺑﺨﺶ ﺑﺮاي ﭘﯽﺟﻮﯾﯽ ﻋﻨﺼﺮﻫﺎي ﭘﺮﺗﻮزا و ﺣﻔﻆ و ﺣﺮاﺳﺖ از آن ﻣﻌﺮﻓﯽ ﺷﺪ. ﻫﻢﭼﻨﯿﻦ ﺑﻪ ﺟﻬﺖ ﺻﺤﺖﺳﻨﺠﯽ، ﺑﺮرﺳﯽﻫﺎي ﺻﺤﺮاﯾﯽ ﭘﯿﺸﯿﻦ ﺻﻮرت ﮔﺮﻓﺘﻪ از ﻧﺎﺣﯿﻪ، ﻣﻮرد ﺑﺮرﺳﯽ ﻗﺮار ﮔﺮﻓﺖ ﮐﻪ ﻧﺘﯿﺠﻪﻫﺎ ﺗﺄﯾﯿﺪﮐﻨﻨﺪهي وﺟﻮد ﻣﻘﺎدﯾﺮ ﺑﺎﻻي ﻋﻨﺼﺮﻫﺎي ﭘﺮﺗﻮزا در ﻧﺎﺣﯿﻪ اﺳﺖ

Nowadays, one of the essential needs of human societies is the need for energy. Our country has also turned to new sources of energy supplies, i.e., the establishment of nuclear power plants in the direction of industrialization and energy supply. In this research we are reporting the discovery of radioactive elements in the western part of Kerman province. The study area is located at 160 km southwest of Kerman and 40 km north of Sirjan. This range is longitudinal, 55° 30' 00'' - 56° 00' 00'' eastern and 55° 30' 00'' - 56° 00' 00'' north latitude in 100,000 sheet of Pariz geological map. In this study, various methods such as mixture tuned matched filtering (MTMF), and orthogonal subspace projection (OSP) were applied for the process of the remote sensing data, and single-variable methods were also used to process the radiometric data. The results have indicated the high potential of the Sentinel 2 in showing the alterations associated with the uranium deposits. Also, due to the geology of the area and the alteration holes and the cross-sectional study of the mixture tuned matched filtering regulation, the MTMF method has been able to show the argillic alteration in the Sentinel 2. According to the geology of the area, these images have the proper potential to separate sandstones and silica gravel from other units. Finally, the promising areas for radioactive elements were identified and preserved. Also, due to the process validation, the previous field surveys from the area were also investigated, and the presence of high levels of radioactive elements in the area was confirmed.