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Your search keyword '"Stern, Robert"' showing total 2 results
Start Over Author "Stern, Robert" Region arabian-nubian shield Publisher elsevier b.v.
2 results on '"Stern, Robert"'

1. ∼750Ma banded iron formation from the Arabian-Nubian Shield—Implications for understanding neoproterozoic tectonics, volcanism, and climate change.

Author

Stern, Robert J., Mukherjee, Sumit K., Miller, Nathan R., Ali, Kamal, and Johnson, Peter R.

Subjects
*PLATE tectonics, *VOLCANISM & climate, *BANDED iron formations, *SEDIMENTATION & deposition, *SEDIMENTARY rocks, *STURTIAN series (Geology), *GLACIATION
Abstract

Highlights: [•] Banded Iron Formation of the Arabian-Nubian Shield (ANS BIF) was deposited ∼750Ma. [•] Deposition was cyclic (alternating Fe-rich and Si-rich bands) and rapid (soft-sediment slumping). [•] ANS-BIF is associated with metavolcanic and volcaniclastic sedimentary rocks. [•] ANS BIF and other ∼750Ma BIF indicate major change in marine redox before Sturtian glaciation. [ABSTRACT FROM AUTHOR]

Published
2013
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2. Hf isotopic composition of single zircons from Neoproterozoic arc volcanics and post-collision granites, Eastern Desert of Egypt: Implications for crustal growth and recycling in the Arabian-Nubian Shield.

Author

Ali, Kamal A., Wilde, Simon A., Stern, Robert J., Moghazi, Abdel-Kader M., and Ameen, S.M. Mahbubul

Subjects
*HAFNIUM isotopes, *ZIRCON, *VOLCANOLOGY, *GRANITE, *VOLCANIC ash, tuff, etc.
Abstract

Highlights: [•] New Hf-isotopic analyses of zircon from the Eastern Desert of Egypt. [•] Hf-TDM ages for post-collisional granites range between 0.81 and 1.3Ga. [•] Post-collisional granite results indicate evolving juvenile crust. [•] Hf-TDM ages for arc-metavolcanic rocks range between 0.78 and 3.8Ga. [•] Arc-metavolcanicHf results indicate involvement of pre-Neoproterozoic material. [ABSTRACT FROM AUTHOR]

Published
2013
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