Please enable JavaScript.
Coggle requires JavaScript to display documents.
5.3 Fluvial Terraces (F1 = Oldest & Highest (Substantially higher,…
5.3
Fluvial Terraces
F1 = Oldest & Highest
Substantially higher
Overlies Pliocene directly
Mid Pliocene?
Coarse diabase & basalt
F2 = Patchy
Capped w conglomerate (without terra rossa)
Discontinuous terraces as eroded by F3
Mid Pliocene?
Coarse diabase & basalt + med grained sand lenses
F3 = Fields ~200ka
Capped w terra rossa
forms in warm humid climate
acceleration chemical weathering
Mid Pleistocene
High basalt content
F4 = Modern channel
Youngest = modern channel
Late Pleistocene
= best preserved
between
channels
Controls
F1 & F2
Uplift = dominant control older terraces
F3 & F4
Climate dominates younger terraces --> uplift rate diminished
Warm, humid periods = more erosive
Glacials - sealevel lower ∴ incsiion
(tho still interplay btwn u & c)
N.B Channels not preserved much
most channel material exported to Mesaoria basin
∴Terraces only record small portion of material eroded