Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications for origin and tectonomagmatic setting
The Lakeh-Siah region is situated in the Central Iran Zone (CIZ), 40 km northeast of Bafq city in the Yazd province. The rocks of the study area belonging to the lower Cambrian; including rhyolite, andesite and pyroclastic surge with porphyry to glomeroporphyric textures. The intrusive igneous rocks...
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University of Isfahan
2020-04-01
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| Series: | پترولوژی |
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| Online Access: | https://ijp.ui.ac.ir/article_24354_22cfdf89918692ad0ca06fe9fac025fc.pdf |
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| author | meisam Gholipoor Mehrdad Barati Ebrahim Tale Fazel |
| author_facet | meisam Gholipoor Mehrdad Barati Ebrahim Tale Fazel |
| author_sort | meisam Gholipoor |
| collection | DOAJ |
| description | The Lakeh-Siah region is situated in the Central Iran Zone (CIZ), 40 km northeast of Bafq city in the Yazd province. The rocks of the study area belonging to the lower Cambrian; including rhyolite, andesite and pyroclastic surge with porphyry to glomeroporphyric textures. The intrusive igneous rocks occur as stock and dyke and have monzonitic and dioritic composition with intergranular and granular textures. Based on geochemical studies, the rocks under study are calc-alkaline, metaluminous to peraluminous nature. The study apatite shows LREE- enrichment relative to HREE, this is a remarkable feature of the Kiruna- type iron deposits. Also, the enrichment of LILE (such as Rb, Ba, La, U, K and Th) and depletion of HFSE (such as Nb, Ta, Zr and Y) in the host rock, is known as a characteristic of the magmatism in the subduction zones. Based on the concentration of rare and trace elements, the volcanic and to the magmatic arc setting. The overall evidences demonstrate that the primary intrusive rocks belong magma of the rocks have been generated from partial melting of oceanic crust, during the closure of the Proto-Tethys Ocean. Iron oxide- phosphorus magma derived from magmatic differentiation of primary mafic magmas and ascended to higher levels through faults and fractures. Oxygen and hydrogen isotopic study of quartz along with magnetite ore in this deposit and calculation the fluid equilibrium with it shows that the ore- bearing fluid has a magmatic origin. |
| first_indexed | 2024-03-12T20:04:31Z |
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| id | doaj.art-289308ee89cc4bffa7897dea8fc8a800 |
| institution | Directory Open Access Journal |
| issn | 2228-5210 2322-2182 |
| language | fas |
| last_indexed | 2024-03-12T20:04:31Z |
| publishDate | 2020-04-01 |
| publisher | University of Isfahan |
| record_format | Article |
| series | پترولوژی |
| spelling | doaj.art-289308ee89cc4bffa7897dea8fc8a8002023-08-02T02:10:15ZfasUniversity of Isfahanپترولوژی2228-52102322-21822020-04-011117310210.22108/ijp.2020.115080.111824354Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications for origin and tectonomagmatic settingmeisam Gholipoor0Mehrdad Barati1Ebrahim Tale Fazel2Geology,Faculty of Science, Bu-Ali Sina, Hamedan, IranGeology, Faculty of Science, Bu-Ali sina, Hamedan, IranGeology, Faculty of science, Bu-Ali Sina, Hamedan, IranThe Lakeh-Siah region is situated in the Central Iran Zone (CIZ), 40 km northeast of Bafq city in the Yazd province. The rocks of the study area belonging to the lower Cambrian; including rhyolite, andesite and pyroclastic surge with porphyry to glomeroporphyric textures. The intrusive igneous rocks occur as stock and dyke and have monzonitic and dioritic composition with intergranular and granular textures. Based on geochemical studies, the rocks under study are calc-alkaline, metaluminous to peraluminous nature. The study apatite shows LREE- enrichment relative to HREE, this is a remarkable feature of the Kiruna- type iron deposits. Also, the enrichment of LILE (such as Rb, Ba, La, U, K and Th) and depletion of HFSE (such as Nb, Ta, Zr and Y) in the host rock, is known as a characteristic of the magmatism in the subduction zones. Based on the concentration of rare and trace elements, the volcanic and to the magmatic arc setting. The overall evidences demonstrate that the primary intrusive rocks belong magma of the rocks have been generated from partial melting of oceanic crust, during the closure of the Proto-Tethys Ocean. Iron oxide- phosphorus magma derived from magmatic differentiation of primary mafic magmas and ascended to higher levels through faults and fractures. Oxygen and hydrogen isotopic study of quartz along with magnetite ore in this deposit and calculation the fluid equilibrium with it shows that the ore- bearing fluid has a magmatic origin.https://ijp.ui.ac.ir/article_24354_22cfdf89918692ad0ca06fe9fac025fc.pdflakeh siahrhyolitesubduction zoneproto-tethysmagmatic differentiation |
| spellingShingle | meisam Gholipoor Mehrdad Barati Ebrahim Tale Fazel Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications for origin and tectonomagmatic setting پترولوژی lakeh siah rhyolite subduction zone proto-tethys magmatic differentiation |
| title | Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications
for origin and tectonomagmatic setting |
| title_full | Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications
for origin and tectonomagmatic setting |
| title_fullStr | Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications
for origin and tectonomagmatic setting |
| title_full_unstemmed | Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications
for origin and tectonomagmatic setting |
| title_short | Geochemistry of apatite and host rocks in Lakeh Siah iron± apatite deposit (Northeast Bafq): Implications
for origin and tectonomagmatic setting |
| title_sort | geochemistry of apatite and host rocks in lakeh siah iron apatite deposit northeast bafq implications for origin and tectonomagmatic setting |
| topic | lakeh siah rhyolite subduction zone proto-tethys magmatic differentiation |
| url | https://ijp.ui.ac.ir/article_24354_22cfdf89918692ad0ca06fe9fac025fc.pdf |
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