Eduqas A-Level Geology Rock-forming processes overview quiz quiz
14questions. Pick an answer and you'll see why right away.
Which igneous rock is coarse-grained and felsic (acid)?
What does a fine-grained (aphanitic) igneous texture tell you about how the magma cooled?
A porphyritic texture (large phenocrysts in a fine groundmass) records:
In Bowen's reaction series, which mineral crystallises last and is the most resistant to weathering?
How does fractional crystallisation change a residual magma?
Which statement correctly distinguishes weathering from erosion?
The chemical weathering of feldspar by hydrolysis produces which new mineral?
Which transport mode carries the finest silt and clay within the body of the flow?
A clean, well-sorted sandstone of almost pure quartz with a silica cement is called:
Graded bedding, which fines upward from a coarse base, indicates the way up because:
Which sedimentary structure, with cracks that taper downward, indicates periodic exposure to air?
Why does regional metamorphism produce foliated rocks but contact metamorphism does not?
Marble and quartzite are non-foliated metamorphic rocks formed from which protoliths?
On a cross-section, a dyke cuts across a sill. What does the principle of cross-cutting relationships tell you?