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| JLJ2023 | Optical Mineralogy | 2+0+1 | ECTS:4 | | Year / Semester | Fall Semester | | Level of Course | First Cycle | | Status | Compulsory | | Department | DEPARTMENT of GEOLOGICAL ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face, Lab work | | Contact Hours | 14 weeks - 2 hours of lectures and 1 hour of laboratory per week | | Lecturer | Prof. Dr. İbrahim UYSAL | | Co-Lecturer | Prof. Dr. M. Burhan SADIKLAR, Prof. Dr. İbrahim UYSAL, Assoc. Prof. Dr. Emel ABDİOĞLU | | Language of instruction | Turkish | | Professional practise ( internship ) | None | | | | The aim of the course: | | To make students acquainted with the use of the polarizing microscope and the optical identification of minerals. |
| Learning Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | LO - 1 : | summarise knowledge in physics of light, and the nature of minerals under the polarizing microscope. | 1,2,11,13,14 | 1,4 | | LO - 2 : | understand optical theory pertaining to transmission of light through isotropic and anisotropic minerals. | 1,2,11,13,14 | 1,4 | | LO - 3 : | attain familiarity with the moving parts of a polarizing microscope. | 1,2,11,13,14 | 1,4 | | LO - 4 : | recognize and demonstrate fundamental differences between isotropic, uniaxial, and biaxial minerals through optical tests performed with a polarizing microscope. | 1,2,11,13,14 | 1,4 | | LO - 5 : | utilize optical properties to identify common rock forming minerals in a thin section. | 1,2,11,13,14 | 1,4 | | LO - 6 : | estimate modal mineralogy (volume % proportions) in thin sections of igneous, sedimentary, and metamorphic rocks. | 1,2,11,13,14 | 1,4 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), LO : Learning Outcome | | |
| Introduction to crystal optics. Content and components of optical mineralogy. Thin-section and its preparation. Light and polarizing light. Isotropic and anisotropic substances. Reflection, refraction and refraction index. Indicatrix, uniaxial and biaxial indicatrix. Usage of nicols (polarizer and analyzer) . Components of polarizing microscopes. Examinations under plane polarized light (PPL): opacity, colour, pleochroism, crystal habit and geometry, cleavage-parting-cracks, inclusion, alteration, paragenesis, relief, Becke line method. Examinations under crossed polars (XPL) ; isotropy and anisotropy, interference colour and measurement of birefringence, Newton colour scale and accessory plates, extinction and measurement of extinction angles, elongation direction. Conoscopic examinations; interference figure and sign of uniaxial and biaxial crystals under the conoscope. Determination of plagioclase types by examining extinction angle measurements. Modal analysis. Optical characteristics of common rock-forming minerals. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Introduction to crystal optics. Content and components of optical mineralogy. | | | Week 2 | Thin-section and its preparation. Light and polarizing light. | | | Week 3 | Isotropic and anisotropic substances. Reflection, refraction and refraction index. | | | Week 4 | Indicatrix, uniaxial and biaxial indicatrix. | | | Week 5 | Usage of nicols (polarizer and analyzer). Components of polarizing microscopes. | | | Week 6 | Examinations under plane polarized light (PPL): opacity, colour, pleochroism, crystal habit and geometry, cleavage-parting-cracks, inclusion, alteration, paragenesis. | | | Week 7 | Examinations under plane polarized light (PPL): relief, Becke line method. | | | Week 8 | Examinations under crossed polars (XPL); isotropy and anisotropy, interference colour and measurement of birefringence. | | | Week 9 | Mid-term exam | | | Week 10 | Examinations under crossed polars (XPL); Newton colour scale and accessory plates, extinction and measurement of extinction angles, elongation direction. | | | Week 11 | Conoscopic examinations; interference figure and sign of uniaxial crystals under the conoscope. | | | Week 12 | Conoscopic examinations; interference figure and sign of biaxial crystals under the conoscope. | | | Week 13 | Determination of plagioclase types by examining extinction angle measurements. | | | Week 14 | Modal analysis of the rocks. | | | Week 15 | Optical characteristics of common rock-forming minerals. | | | Week 16 | End-of-term exam | | | |
| 1 | Arslan, M. Optik Mineraloji Ders Notu. | | | 2 | Aslaner, M. 1986; Optik Mineraloji. Karadeniz Teknik Üniversitesi Genel yayın no. 98. Fakülte yayın no. 40. | | | |
| 1 | Aslaner, M., 1995; Mineraloji I. KTÜ Yayın no: 181. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | In-term studies (second mid-term exam) | 9 | 11/11/2015 | 1,5 | 25 | | Laboratory exam | 14 | 30/12/2015 | 1 | 25 | | End-of-term exam | 16 | 06/01/2016 | 1,5 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 2 | 14 | 28 | | Laboratuar çalışması | 2 | 14 | 28 | | Arasınav için hazırlık | 3 | 7 | 21 | | Arasınav | 1 | 1 | 1 | | Uygulama | 1 | 14 | 14 | | Dönem sonu sınavı için hazırlık | 4 | 14 | 56 | | Dönem sonu sınavı | 1 | 1 | 1 | | Diğer 1 | 1 | 1 | 1 | | Total work load | | | 150 |
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