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GEOL 4010 QUATERNARY GEOLOGY

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1. Late Proterozoic (800-600 My BP) 2. Parts of Ordovician and ... Eurasian and North American Ice sheet reconstruction. Glacial erratics and erratic trains ... – PowerPoint PPT presentation

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Title: GEOL 4010 QUATERNARY GEOLOGY


1
GEOL 4010QUATERNARY GEOLOGY
  • Instructor
  • Dr. Hester Jiskoot
  • Room UH C-852
  • email hester.jiskoot_at_uleth.ca

2
QUATERNARY last 2,5 million years
Pleistocene
Holocene
0 yr BP
10 000 yr BP
2.5 million yr BP
CLIMATIC SEESAW
3
GLACIATIONS (1)
  • MAJOR GLACIATIONS
  • 1. Late Proterozoic (800-600 My BP)
  • 2. Parts of Ordovician and Silurian (460-430 My
    BP)
  • 3. Carboniferous and Permian (350-250 My BP)
  • 4. Late Neogene to Quaternary (last 4 My)
  • POSSIBLE CAUSES OF EXTENSIVE GLACIATIONS
  • Changing continental positions
  • Uplift of continental blocks
  • Reduction of CO2 in the atmosphere
  • Astronomical variations (Milankovitch)

4
Objectives (1)
  • You acquire
  • Knowledge about Quaternary geology, the
    distribution of glaciers and glacial signatures
    in the landscape.
  • Knowledge about Ice Ages and glacier response to
    climate change.
  • An understanding of the interaction between
    glaciers and the environment.
  • An understanding of discrepancies between
    modelling and geological field evidence.

5
Objectives (2)
  • You acquire
  • Skills in critically analysing scientific
    literature.
  • Skills to interpret the glacial record from
    glacial landforms, sediments and geology and
    other evidence.
  • An appreciation of the variety of ways in which
    glacial-geological data can be interpreted.

6
Topics (1)
  • Quaternary time line and stratigraphy
  • Climate change and ice age theories
  • Absolute and relative dating techniques for the
    past 2,5 million years
  • Ice core records
  • Glacials, Interglacials, Stadials Interstadials

7
Topics (2)
  • Glacial isostacy and sea level fluctuations
  • Eurasian and North American Ice sheet
    reconstruction
  • Glacial erratics and erratic trains
  • Quaternary geology, sedimentology and landsystems
  • Heinrich events
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