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Volume 27 Issue 6
Nov.  2016
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Muhammad Fahad, Yaseen Iqbal, Mohammad Riaz, Rick Ubic, Simon A. T. Redfern. Metamorphic Temperature Investigation of Coexisting Calcite and Dolomite Marble––Examples from Nikani Ghar Marble and Nowshera Formation, Peshawar Basin, Pakistan. Journal of Earth Science, 2016, 18(6): 989-997. doi: 10.1007/s12583-015-0643-7
Citation: Muhammad Fahad, Yaseen Iqbal, Mohammad Riaz, Rick Ubic, Simon A. T. Redfern. Metamorphic Temperature Investigation of Coexisting Calcite and Dolomite Marble––Examples from Nikani Ghar Marble and Nowshera Formation, Peshawar Basin, Pakistan. Journal of Earth Science, 2016, 18(6): 989-997. doi: 10.1007/s12583-015-0643-7

Metamorphic Temperature Investigation of Coexisting Calcite and Dolomite Marble––Examples from Nikani Ghar Marble and Nowshera Formation, Peshawar Basin, Pakistan

doi: 10.1007/s12583-015-0643-7
  • Received Date: 2016-12-26
  • Rev Recd Date: 2016-12-26
  • Publish Date: 2016-12-26
  • Using marble samples from the Nikani Ghar marble and Nowshera Formation fromNorthern Pakistan the determination of the temperature of metamorphism was undertaken with thehelp of calcite-dolomite solvus geothermometer. Two types of marbles, that is, calcite-dolomite marbleand quartz-bearing calcite-dolomite marble were selected. Petrographic and scanning electron microscope analysis of dolomite samples indicated different grain sizes. X-ray diffraction technique indicatedthe calcites MgCO3 content up to 7.93 mol.%. Nikani Ghar marble samples have shown lower contentsof MgCO3 as compared to samples from Nowshera Formation. The calcite-dolomite-quartz marble hasalso showed relatively lower MgCO3 content and hence rather low temperature (~500 oC). The temperature reached during peak metamorphism of the investigated marble occurrence, based on calcitedolomite solvus was 628 oC. Metamorphic temperatures derived from the present study were shown asa linear graph and values were in good agreement with the published literature.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Metamorphic Temperature Investigation of Coexisting Calcite and Dolomite Marble––Examples from Nikani Ghar Marble and Nowshera Formation, Peshawar Basin, Pakistan

doi: 10.1007/s12583-015-0643-7

Abstract: Using marble samples from the Nikani Ghar marble and Nowshera Formation fromNorthern Pakistan the determination of the temperature of metamorphism was undertaken with thehelp of calcite-dolomite solvus geothermometer. Two types of marbles, that is, calcite-dolomite marbleand quartz-bearing calcite-dolomite marble were selected. Petrographic and scanning electron microscope analysis of dolomite samples indicated different grain sizes. X-ray diffraction technique indicatedthe calcites MgCO3 content up to 7.93 mol.%. Nikani Ghar marble samples have shown lower contentsof MgCO3 as compared to samples from Nowshera Formation. The calcite-dolomite-quartz marble hasalso showed relatively lower MgCO3 content and hence rather low temperature (~500 oC). The temperature reached during peak metamorphism of the investigated marble occurrence, based on calcitedolomite solvus was 628 oC. Metamorphic temperatures derived from the present study were shown asa linear graph and values were in good agreement with the published literature.

Muhammad Fahad, Yaseen Iqbal, Mohammad Riaz, Rick Ubic, Simon A. T. Redfern. Metamorphic Temperature Investigation of Coexisting Calcite and Dolomite Marble––Examples from Nikani Ghar Marble and Nowshera Formation, Peshawar Basin, Pakistan. Journal of Earth Science, 2016, 18(6): 989-997. doi: 10.1007/s12583-015-0643-7
Citation: Muhammad Fahad, Yaseen Iqbal, Mohammad Riaz, Rick Ubic, Simon A. T. Redfern. Metamorphic Temperature Investigation of Coexisting Calcite and Dolomite Marble––Examples from Nikani Ghar Marble and Nowshera Formation, Peshawar Basin, Pakistan. Journal of Earth Science, 2016, 18(6): 989-997. doi: 10.1007/s12583-015-0643-7

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