My question is about occurred geodynamic events related to alkaline magmatism between Ordovician-Silurian periods in Central Iran tectonomagmatic zone or near adjacent zones.
Furthermore, the effective geodynamic events within the Gondwana at 500-400 Ma is very important to sole my problems.
Hi Afshin,
I think that the following references will be useful for you:
O. Don Hermes and R. E. Zartman Late Proterozoic and Silurian Alkaline Plutons within the Southeastern New England Avalon Zone. The Journal of Geology Vol. 100, No. 4 (Jul., 1992), pp. 477-486 Published by: The University of Chicago Press, https://www.jstor.org/stable/30065744
https://www.researchgate.net/publication/303331460_ORDOVICIAN-SILURIAN_MAGMATISM_IN_THE_ALTAI_MOUNTAINS_AND_ITS_TECTONIC_SIGNIFICANCE
Luc André, J. Hertogen, S. Deutsch Ordovician Silurian magmatic provinces in Belgium and the Caledonian orogeny in middle Europe. January 1986, Geology 14(10), DOI: 10.1130/0091-7613(1986)142.0.CO;2
D. Millward and J.A. Evans U–Pb chronology and duration of late Ordovician magmatism in the English Lake District. Journal of the Geological Society, 160, 773-781, 1 September 2003, https://doi.org/10.1144/0016-764902-160
I know of gabbroid to syenitoid intrusions of Cambrian to Ordovician age scattered from east-central Idaho to south-central Colorado in the western USA (See Lund and others, GSA Bulletin, 2010, v. 122, p. 130-143). I also know of mafic-alkalic igneous intrusive and volcanic rocks +/- associated Cu-Au deposits) in southeastern Australia (See Bookstrom and others, USGS Scientific Investigations Report 2010-5090-L).
Salam Afshim,
There are two records from Anatolide-Tauride block, which can be correlated with the Central Iranian block in terms of the geologic evolution:
Okay, A.I., Satır, M., Shang, C.K. 2008. Ordovician metagranitoid from the Anatolide-Tauride block, northwest Turkey: geodynamic implications. Terra Nova 20, 280-288.
Özbey, Z., Ustaömer, T., Robertson, A.H.F., Ustaömer, P.A., 2013. Tectonic significance of Late Ordovician granitic magmatism and clastic sedimentation on the northern margin of Gondwana (Tavşanlı Zone, NW Turkey). Journal of the Geological Society, London, 170, 159-173.
Tentatively, they were ascribed to the rifting event along the northern margin of the Gondwana.
Hi Afshin,
The Soltan Median basaltic complex is located on the southern edge of the Albroz block. The age of the complex is considered to be the Devonian and is associated with the opening of the Tethys ocean by all geologists, except for Australian geologists. However, the lower age of these complex is Sandbian-Katian (please, look at Moghadam' s papers), and Tethys ocean opened between the Asian Hun macro-continent and the northern edge of Australia in early Cambrian era and continental rifting process started in late Ediacaran era (please, look at Liu, Wang, Wu, Hu, Metcalfe' s papers).
In short, the Soltan Median complex is not a reference to the rifting of Tethys. This complex has another meaning.
Dear Afshin Majidi
Please refer to the following trademark paper.
1. https://www.tandfonline.com/doi/abs/10.1080/00206814.2021.1972352?journalCode=tigr20
2. https://onlinelibrary.wiley.com/doi/10.1002/gj.4236?af=R
3. https://personal.utdallas.edu/~rjstern/pdfs/Moghadam%20Early%20Paleozoic%20Lithos%2017.pdf
I hope this helps.
Best Wishes,
Haroon
- Badges
- Science topic
- Similar topics
- Methodology
- Research Methodology
- Research Papers