Geodynamics of Anatolia and the Aegean sea
Posted: Wed Jan 18, 2012 1:52 am
Understanding the geodynamics of the eastern Mediterranean basin gives a lot of clues about the true nature of active margins.
In this post, I suggest a multiple-choice test to familiarize yourself with the geodynamics of the Eastern Mediterranean Basin and its implications in lithosphere recycling by active margins.
A lot of answers are found in this paper:
Le Pichon & Kreemer (2010) "The Miocene-to-Present Kinematic Evolution of the Eastern Mediterranean and Middle East and Its Implications for Dynamics" 2010 Annual Review of Earth and Planetary Sciences 38 p323-351
This figure shows the displacement of the lithosphere in the Eastern Mediterranean Basin as measured by GPS (source Jules Verne Voyager).
Each vector represents the displacement of one GPS station.
The questions:
1) Is there a significant relative displacement between the GPS stations on the coast of Lybia and Egypt and those in Italy/Balkans/Europe?
In this post, I suggest a multiple-choice test to familiarize yourself with the geodynamics of the Eastern Mediterranean Basin and its implications in lithosphere recycling by active margins.
A lot of answers are found in this paper:
Le Pichon & Kreemer (2010) "The Miocene-to-Present Kinematic Evolution of the Eastern Mediterranean and Middle East and Its Implications for Dynamics" 2010 Annual Review of Earth and Planetary Sciences 38 p323-351
This figure shows the displacement of the lithosphere in the Eastern Mediterranean Basin as measured by GPS (source Jules Verne Voyager).
Each vector represents the displacement of one GPS station.
The questions:
1) Is there a significant relative displacement between the GPS stations on the coast of Lybia and Egypt and those in Italy/Balkans/Europe?
- a- yes
b- no
- a- Convergence
b- Divergence
c- no significant divergence or convergence
- a- longer
b- shorter
- a- extension
b- compression
- a- A southwestward displacement of mobile Anatolian/Aegean lithosphere (and mantle) inside a static platform, including the Mediterranean sea+Africa+Europe
b- A northeastward displacement of a rigid block formed by the Mediterranean Sea+Africa+Europe toward a static block including Anatolia and the Aegean Sea.
- a- the rotation of a rigid plate
b- a flowing glacier
- a- Subduction of the Mediterranean Sea toward and under the Aegean Sea
b- Gravity flow of uplifted Anatolian lithosphere
- a- nothing
b- progressively sink under the load of the flowing material
- a- subduction
b- overduction
- a- covering larger than covered
b- covering smaller than covered
c- covering equal to covered
- a- yes
b- no
- a- yes
b- no
- a- increase
b- decrease
- a- increase
b- decrease