BGYCT-135 IGNOU Handwritten Assignment 2026-27

BGYCT-135 Petrology Physical Handwritten Assignment (Hard Copy)

This is a 100% physical hard copy assignment for IGNOU’s BGYCT-135 Petrology course, meticulously crafted by academic scribes for submission via Speed Post. The assignment covers all four official blocks of the syllabus, ensuring compliance with IGNOU’s guidelines for handwritten submissions.

Covered Syllabus Blocks (Official IGNOU Curriculum)

• Block-1: Igneous Petrology I
  • Classification and nomenclature of igneous rocks based on mineralogy and texture (e.g., plutonic vs. volcanic, phaneritic vs. aphanitic).
  • Bowen’s reaction series and its significance in magma crystallization.
  • Field and laboratory techniques for identifying igneous rock-forming minerals (e.g., quartz, feldspars, pyroxenes).
• Block-2: Igneous Petrology II
  • Magma genesis and differentiation processes (e.g., fractional crystallization, assimilation, magma mixing).
  • Geochemical classification of igneous rocks (e.g., alkali vs. subalkaline series, AFM diagrams).
  • Case studies of major igneous provinces (e.g., Deccan Traps, Columbia River Basalt).
• Block-3: Sedimentary Petrology
  • Sedimentary rock classification (clastic, chemical, biochemical) with emphasis on grain size and sorting.
  • Diagenesis and lithification processes (e.g., compaction, cementation, recrystallization).
  • Field and microscopic identification of sedimentary structures (e.g., cross-bedding, ripple marks).
• Block-4: Metamorphic Petrology
  • Metamorphic facies and their geological significance (e.g., greenschist, amphibolite, granulite).
  • Metamorphic textures (foliation, lineation, porphyroblasts) and their relation to stress conditions.
  • Metamorphic grade and pressure-temperature (P-T) paths in regional and contact metamorphism.

Assignment Features

• Written on 80 GSM ruled A4 paper for clarity and durability.
• Includes the official IGNOU front page and printed question paper for seamless submission.
• Neat, legible human handwriting by experienced academic scribes.
• Delivered via Indian Speed Post to your registered study centre address.

Subject-Specific FAQs

• Q: Does this assignment include diagrams for igneous rock textures?

  A: Yes, hand-drawn diagrams (e.g., porphyritic, vesicular, glassy textures) are included for Blocks 1 and 2.

• Q: Are sedimentary structures explained with real-world examples?

  A: Absolutely. Each structure (e.g., graded bedding, mud cracks) is illustrated with field occurrences.

Note for Submission

This is a physical hard copy only. No digital files (PDFs, downloads) are provided. Ensure the assignment is submitted within the deadline via Speed Post to your IGNOU study centre.