The Quaternary period is characterised by

repeated glacial and interglacial cycles

Till (boulder clay) is best described as

unsorted material deposited directly by ice

alter the amount and distribution of solar radiation, especially northern summer sunshine

oxygen-isotope ratios in deep-sea foraminifera

the closure of the Iapetus Ocean

near the equator in warm, wet tropical swamps

hot, dry subtropical conditions as Britain drifted north

their mechanical behaviour: rigid lithosphere over ductile asthenosphere

thinner, denser, basaltic and younger

the buoyant equilibrium of the lithosphere floating on the denser asthenosphere

post-glacial (isostatic) rebound after the removal of ice-sheet weight

preserve slices of oceanic crust uplifted onto land, showing its layered structure

15questions. Pick an answer and you'll see why right away.

The Quaternary period is characterised by
Till (boulder clay) is best described as
Which is NOT one of the three Milankovitch cycles?
Glacial-interglacial cycles are paced by Milankovitch variations because they
A continuous record of past ice volume over many Quaternary cycles is best given by
The Caledonian orogeny in Britain resulted from
Which orogeny emplaced the granites of south-west England with their tin and copper?
Coal in the British Carboniferous indicates that Britain then lay
Permo-Triassic desert sandstones and evaporites in Britain record
The lithosphere and asthenosphere are distinguished by
Compared with continental crust, oceanic crust is
The failure of S waves to pass through the outer core is evidence that the outer core is
Isostasy is
Parts of Scotland and Scandinavia are still rising today because of
Ophiolites are valuable because they