Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq
The Qamchuqa Formation was studied in Kosrat Anticline in Dokan area in Sulaimanyia governorate, Kurdistan region, Northeastern Iraq. The 14 slides of 14 rock samples were maked and studied under different microscopes. Petrographic properties and types of pores determined in this study, related to...
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College of science, university of Diyala
2025-01-01
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| Series: | Academic Science Journal |
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| Online Access: | https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/138 |
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| author | Abdalratha Mohammed sahaab |
| author_facet | Abdalratha Mohammed sahaab |
| author_sort | Abdalratha Mohammed sahaab |
| collection | DOAJ |
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The Qamchuqa Formation was studied in Kosrat Anticline in Dokan area in Sulaimanyia governorate, Kurdistan region, Northeastern Iraq. The 14 slides of 14 rock samples were maked and studied under different microscopes. Petrographic properties and types of pores determined in this study, related to Qamchuqa Formation. The formation consists of three units. Lower Unit (162 m) consists of dark grey, massive limestone. Middle Unit (139 m) consists of alternation of grey very coarse crystalline dolomitic limestone and yellowish green marl. Upper Unit (384 m) consists of grey massive limestone and dolomitic limestone.
The high values of porosity in the Qamchuqa Formation can be resulted from vuggy porosity and the stylolite systems too. The high values of porosity in last stage of pores evolution can be attributed to intercrystal porosity, vuggy porosity and secondary fractures systems.
Three types of pores were found in Qamchuqa Formation, these are intercrystal dolomite pores, vuggy pores, and microfracturs pores. The Qamchuqa Formation in the present study at Kosrt anticline can be considered as a petroleum reservoir because of the ratio of bitumen materials to the size of pores. As well as, Qamchuqa Formation in the present study is characterized by leakage of petroleum materials to the surface.
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| format | Article |
| id | doaj-art-e38278351d044d2e9201098bb64dac98 |
| institution | Kabale University |
| issn | 2958-4612 2959-5568 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | College of science, university of Diyala |
| record_format | Article |
| series | Academic Science Journal |
| spelling | doaj-art-e38278351d044d2e9201098bb64dac982025-02-04T04:26:34ZengCollege of science, university of DiyalaAcademic Science Journal2958-46122959-55682025-01-013110.24237/ASJ.03.01.824APorosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, IraqAbdalratha Mohammed sahaab The Qamchuqa Formation was studied in Kosrat Anticline in Dokan area in Sulaimanyia governorate, Kurdistan region, Northeastern Iraq. The 14 slides of 14 rock samples were maked and studied under different microscopes. Petrographic properties and types of pores determined in this study, related to Qamchuqa Formation. The formation consists of three units. Lower Unit (162 m) consists of dark grey, massive limestone. Middle Unit (139 m) consists of alternation of grey very coarse crystalline dolomitic limestone and yellowish green marl. Upper Unit (384 m) consists of grey massive limestone and dolomitic limestone. The high values of porosity in the Qamchuqa Formation can be resulted from vuggy porosity and the stylolite systems too. The high values of porosity in last stage of pores evolution can be attributed to intercrystal porosity, vuggy porosity and secondary fractures systems. Three types of pores were found in Qamchuqa Formation, these are intercrystal dolomite pores, vuggy pores, and microfracturs pores. The Qamchuqa Formation in the present study at Kosrt anticline can be considered as a petroleum reservoir because of the ratio of bitumen materials to the size of pores. As well as, Qamchuqa Formation in the present study is characterized by leakage of petroleum materials to the surface. https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/138Key words: Qamchuqa Formation, Porosity evolution, vuggy pores, intercrystal dolomite pores, microfracturs pores |
| spellingShingle | Abdalratha Mohammed sahaab Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq Academic Science Journal Key words: Qamchuqa Formation, Porosity evolution, vuggy pores, intercrystal dolomite pores, microfracturs pores |
| title | Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq |
| title_full | Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq |
| title_fullStr | Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq |
| title_full_unstemmed | Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq |
| title_short | Porosity Evolution of the Early Cretaceous, Qamchuqa Formation in northeastern part, Iraq |
| title_sort | porosity evolution of the early cretaceous qamchuqa formation in northeastern part iraq |
| topic | Key words: Qamchuqa Formation, Porosity evolution, vuggy pores, intercrystal dolomite pores, microfracturs pores |
| url | https://acadscij.uodiyala.edu.iq/index.php/Home/article/view/138 |
| work_keys_str_mv | AT abdalrathamohammedsahaab porosityevolutionoftheearlycretaceousqamchuqaformationinnortheasternpartiraq |