scholarly journals Three-Dimensional Evolution of the Early Paleozoic Western Laurentian Margin: New Insights From Detrital Zircon U-Pb Geochronology and Hf Isotope Geochemistry of the Harmony Formation of Nevada

Tectonics ◽  
2017 ◽  
Vol 36 (11) ◽  
pp. 2347-2369 ◽  
Author(s):  
G. M. Linde ◽  
J. H. Trexler ◽  
P. H. Cashman ◽  
G. Gehrels ◽  
W. R. Dickinson
Geosphere ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 1016-1031 ◽  
Author(s):  
Gwen M. Linde ◽  
James H. Trexler ◽  
Patricia H. Cashman ◽  
George Gehrels ◽  
William R. Dickinson

Minerals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 36 ◽  
Author(s):  
Victoria B. Ershova ◽  
Andrei V. Prokopiev ◽  
Andrey K. Khudoley ◽  
Tom Andersen ◽  
Kåre Kullerud ◽  
...  

U–Pb and Lu–Hf isotope analyses of detrital zircons collected from metasedimentary rocks from the southern part of Kara Terrane (northern Taimyr and Severnaya Zemlya archipelago) provide vital information about the paleogeographic and tectonic evolution of the Russian High Arctic. The detrital zircon signatures of the seven dated samples are very similar, suggesting a common provenance for the clastic detritus. The majority of the dated grains belong to the late Neoproterozoic to Cambrian ages, which suggests the maximum depositional age of the enclosing sedimentary units to be Cambrian. The εHf(t) values indicate that juvenile magma mixed with evolved continental crust and the zircons crystallized within a continental magmatic arc setting. Our data strongly suggest that the main provenance for the studied clastics was located within the Timanian Orogen. A review of the available detrital zircon ages from late Neoproterozoic to Cambrian strata across the wider Arctic strongly suggests that Kara Terrane, Novaya Zemlya, Seward Peninsula (Arctic Alaska), Alexander Terrane, De Long Islands, and Scandinavian Caledonides all formed a single tectonic domain during the Cambrian age, with clastics predominantly sourced from the Timanian Orogen.


Author(s):  
George Gehrels ◽  
Mark Pecha

Geosphere, February 2014, v. 10, p. 49-65, doi:10.1130/GES00889.1, Supplemental File 2 - CL image file (238 pages). File size is ~23 MB.


Author(s):  
George Gehrels ◽  
Mark Pecha

Geosphere, February 2014, v. 10, p. 49-65, doi:10.1130/GES00889.1, Supplemental Tables - Zipped file containing 13 Excel table files. Table 1: Alaska U-Pb data. Table 2: Northern British Columbia U-Pb data. Table 3: Southern British Columbia U-Pb data. Table 4: Nevada-Utah U-Pb data. Table 5: Southern California U-Pb data. Table 6: Sonora U-Pb data. Table 7: Hf standard data. Table 8: Alaska Hf data. Table 9: Northern British Columbia Hf data. Table 10: Southern British Columbia Hf data. Table 11: Nevada-Utah Hf data. Table 12: Southern California Hf data. Table 13: Sonora Hf data.


Lithosphere ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 668-683 ◽  
Author(s):  
Derrick Midwinter ◽  
Thomas Hadlari ◽  
W.J. Davis ◽  
Keith Dewing ◽  
R.W.C. Arnott

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