Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Igneous Petrology - Advanced topics in Geology - Geology & Geophysics previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
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Year-wise coverage for Igneous Petrology. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
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Question coverage for the most populated papers. Every active PYP paper remains listed below.
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| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| Geology and Geophysics - Geology (GG) 2026 | 2026 | 2 | View paper |
| Geology and Geophysics - Geophysics (GG) 2026 | 2026 | 1 | View paper |
| Geology & Geophysics (GG) 2025 [Session 1] | 2025 | 4 | View paper |
| Geology & Geophysics (GG) 2025 [Session 2] | 2025 | 1 | View paper |
| Geology & Geophysics (GG) 2024 [Session 1] | 2024 | 4 | View paper |
| Geology & Geophysics (GG) 2023 [Session 1] | 2023 | 3 | View paper |
| Geology & Geophysics (GG) 2023 [Session 2] | 2023 | 1 | View paper |
| Geology & Geophysics (GG) 2022 | 2022 | 4 | View paper |
| Geology & Geophysics (GG) 2020 | 2020 | 1 | View paper |
| Geology & Geophysics (GG) 2019 | 2019 | 1 | View paper |
| Geology & Geophysics (GG) 2018 | 2018 | 2 | View paper |
| Geology & Geophysics (GG) 2017 | 2017 | 1 | View paper |
| Geology & Geophysics (GG) 2016 | 2016 | 1 | View paper |
| Geology & Geophysics (GG) 2015 | 2015 | 2 | View paper |
| Geology & Geophysics (GG) 2014 | 2014 | 2 | View paper |
| Geology & Geophysics (GG) 2013 | 2013 | 2 | View paper |
| Geology & Geophysics (GG) 2012 | 2012 | 1 | View paper |
| Geology & Geophysics (GG) 2011 | 2011 | 3 | View paper |
| Geology & Geophysics (GG) 2010 | 2010 | 3 | View paper |
| Geology & Geophysics (GG) 2009 | 2009 | 4 | View paper |
| Geology & Geophysics (GG) 2008 | 2008 | 2 | View paper |
| Geology & Geophysics (GG) 2007 | 2007 | 2 | View paper |
Practice every matching question in batches of 20, with every available option.
Find the correct match of mineral pair in Group I with the corresponding crystallization behaviour in Group II
| Group I | Group II |
|---|---|
| P. Silica – K feldspar | 1. Solid solution |
| Q. Albite – Anorthite | 2. Peritectic |
| R. Forsterite – Silica | 3. Eutectic |
An igneous rock with 50% olivine, 25% orthopyroxene and 25% clinopyroxene by mode will be called
On partially melting this rock, the first melt will have the composition of point
A rock with equal modal contents of quartz, plagioclase and orthoclase is known as
Determine the correctness or otherwise of the following Assertion (a) and Reason (r).
Assertion: Strontium concentration in a basic magma decreases with fractional crystallization of plagioclase.
Reason: Strontium is a compatible trace element in plagioclase during magmatic crystallization.
A potassic ultrabasic hybrid igneous rock containing macrocrysts of olivine, Cr-rich diopside, phlogopite and pyrope in a groundmass of serpentine, carbonate and perovskite can be named as
In the given ternary (Fo = forsterite; Di = diopside; An = anorthite) eutectic diagram, the point A represents the composition of magma. What will be the sequence of crystallization during cooling of this magma?

Chemical analysis reveals that basalts contain much more aluminum (Al2O3 ~ 15%) in comparison to peridotites (Al2O3 ~ 4%). This is because they contain
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