Neco Model Questions Vol1 2019 Geography Question 31

Practice objective / multiple choice question 31 from the 2019 Neco Model Questions Vol1 Geography examination.

Neco Model Questions Vol1 2019 Geography Objective / Multiple Choice Medium Difficulty
Question 31 NECO_MODEL_QUESTIONS_VOL1 • 2019 • GEOGRAPHY • objective

A coarse‑grained intrusive rock sample has the following mineral composition by volume: quartz (45\%\), orthoclase feldspar (30\%\), plagioclase feldspar (10\%\), biotite mica (10\%\), amphibole (5\%\). (i) Identify the most appropriate rock name. (ii) State whether the rock most likely crystallised in a continental or oceanic tectonic setting.

Answer Options

Correct Answer A. Granite; continental crust
B. Granodiorite; oceanic crust
C. Diorite; continental crust
D. Gabbro; oceanic crust
Correct Answer
A
Correct Option:
Granite; continental crust

About This Question

This is Neco Model Questions Vol1 2019 Geography Question 31. It is one of the objective questions from the 2019 Neco Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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