Sedimentology, geomorphology, structural controls, and detrital zircon ages of the Itiquira River diamond placer deposits, Mato Grosso, western Brazil

2022 ◽  
pp. 103712
Author(s):  
Pedro Maciel de Paula Garcia ◽  
Ricardo Kalikowski Weska ◽  
Elton Luiz Dantas
Keyword(s):  
Detrital Zircon ◽  
Mato Grosso ◽  
Structural Controls ◽  
Placer Deposits ◽  
Detrital Zircon Ages

DETRITAL ZIRCON AGES REVEAL POST 15 MA CONVERGENCE AND PLEISTOCENE-QUATERNARY BASEMENT UNROOFING IN THE CAUCASUS

2017 ◽  
Author(s):  
Alexander Tye ◽  
◽  
Nathan A. Niemi ◽  
Rafiq Safarov ◽  
Fakhraddin Kadirov
Keyword(s):  
Detrital Zircon ◽  
The Caucasus ◽  
Detrital Zircon Ages

Paleogeographic isolation of the Cretaceous to Eocene Sevier hinterland, east-central Nevada: Insights from U-Pb and (U-Th)/He detrital zircon ages of hinterland strata

2010 ◽  
Vol 123 (5-6) ◽  
pp. 1141-1160 ◽  
Author(s):  
P. Druschke ◽  
A. D. Hanson ◽  
M. L. Wells ◽  
G. E. Gehrels ◽  
D. Stockli
Keyword(s):  
Detrital Zircon ◽  
East Central ◽  
Detrital Zircon Ages

Detrital zircon geochronology of Neoproterozoic to Permian miogeoclinal strata in British Columbia and Alberta

1998 ◽  
Vol 35 (12) ◽  
pp. 1380-1401 ◽  
Author(s):  
George E Gehrels ◽  
Gerald M Ross
Keyword(s):  
British Columbia ◽  
Detrital Zircon ◽  
Isotopic Signature ◽  
Detrital Zircons ◽  
Detrital Zircon Geochronology ◽  
Salmon River ◽  
Western Canada Sedimentary Basin ◽  
Cordilleran Margin ◽  
Peace River Arch ◽  
Detrital Zircon Ages

U-Pb ages have been determined on 250 detrital zircon grains from Neoproterozoic through Permian miogeoclinal strata in British Columbia and Alberta. Most of the grains in these strata are >1.75 Ga and are interpreted to have been derived from nearby basement provinces (although most grains were probably cycled though one or more sedimentary units prior to final deposition). Important exceptions are Ordovician sandstones that contain grains derived from the Peace River arch, and upper Paleozoic strata with detrital zircons derived from the Franklinian orogen, Salmon River arch (northwestern U.S.A.), and (or) Grenville orogen. These provenance changes resulted in average detrital zircon ages that become progressively younger with time, and may also be reflected by previously reported shifts in the Nd isotopic signature of miogeoclinal strata. In addition to the grains that have identifiable sources, grains of ~1030, ~1053, 1750-1774, and 2344-2464 Ma are common in our samples, but igneous rocks of these ages have not been recognized in the western Canadian Shield. We speculate that unrecognized plutons of these ages may be present beneath strata of the western Canada sedimentary basin. Collectively, our data provide a record of the ages of detrital zircons that accumulated along the Canadian Cordilleran margin during much of Paleozoic time. Comparisons between this reference and the ages of detrital zircons in strata of potentially displaced outboard terranes may help reconstruct the paleogeography and accretionary history of the Cordilleran orogen.

scholarly journals Age of the Cap Mountain (Northwest Territories) Proterozoic section, sequence B, based on detrital zircon ages

1998 ◽  
Author(s):  
M E Villeneuve ◽  
N J Butterfield ◽  
D G Cook ◽  
B C MacLean ◽  
R H Rainbird
Keyword(s):  
Northwest Territories ◽  
Detrital Zircon ◽  
Detrital Zircon Ages
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