PALEOTOPOGRAPHY OF THE KLAMATH MOUNTAINS PROVINCE REVEALED BY U-PB DETRITAL ZIRCON AGES AND HF ISOTOPES FROM THE LATE CRETACEOUS TO EOCENE MONTGOMERY CREEK FORMATION

2020 ◽  
Author(s):  
Melanie J. Michalak ◽  
◽  
Dylan Kinser ◽  
Edward Morales ◽  
Sydney Acito ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Detrital Zircon ◽  
Hf Isotopes ◽  
Klamath Mountains ◽  
Detrital Zircon Ages

A Tarim-South China-North India connection in the periphery of Rodinia: Constraints from provenance of middle Neoproterozoic sedimentary rocks in the Altyn Tagh orogen, southeastern Tarim

2020 ◽  
Author(s):  
Qian Liu
Keyword(s):  
South China ◽  
Detrital Zircon ◽  
Sedimentary Rocks ◽  
Detrital Zircons ◽  
Close Linkage ◽  
North India ◽  
Hf Isotopes ◽  
Altyn Tagh ◽  
Detrital Zircon Ages ◽  
Rule Out

<p>Locating Tarim during assembly and breakup of Supercontinent Rodinia remains enigmatic, with different models advocating a Tarim-Australia linkage or a location between Australia and Laurentia at the heart of unified Rodinia. In this study, zircon U-Pb dating results first revealed middle Neoproterozoic sedimentary rocks in the Altyn Tagh orogen, southeastern Tarim. These sedimentary rocks were deposited between ca. 880 and 750 Ma in a rifting-related setting slightly prior to breakup of Rodinia at ca. 750 Ma. A compilation of Neoproterozoic geological records indicates that the Altyn Tagh orogen in southeastern Tarim underwent ca. 1.0-0.9 Ga collision and ca. 850-600 Ma rifting related to assembly and breakup of Rodinia, respectively. In order to place Tarim in Rodinia, available detrital zircon U-Pb ages and Hf isotopes from Meso- to Neoproterozoic sedimentary rocks in relevant Rodinia blocks are compiled. Comparable detrital zircon ages (at ca. 0.9, 1.3-1.1, and 1.7 Ga) and Hf isotopes indicate a close linkage among southeastern Tarim, Cathaysia, and North India, but rule out a North or West Australian affinity for Tarim. In addition, detrital zircons from northern Tarim exhibit a prominent age peak at ca. 830 Ma with minor spectra at ca. 1.9 and 2.5 Ga but lack Mesoproterozoic ages, which are comparable to those from northern and western Yangtze. Together with comparable geological responses to assembly and breakup of Rodinia, a new Tarim-South China-North India connection is inferred in the periphery of Rodinia.</p>

Using detrital zircon ages and Hf isotopes to identify 1.48–1.45Ga sedimentary basins and fingerprint sources of exotic 1.6–1.5Ga grains in southwestern Laurentia

2013 ◽  
Vol 231 ◽  
pp. 409-421 ◽  
Author(s):  
Michael F. Doe ◽  
James V. Jones ◽  
Karl E. Karlstrom ◽  
Brandon Dixon ◽  
George Gehrels ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Sedimentary Basins ◽  
Hf Isotopes ◽  
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
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