Implications of U-Pb detrital zircon geochronology analysis for the depositional age, provenance, and tectonic setting of continental Mesozoic formations in the East Malaya Terrane, Peninsular Malaysia

2018 ◽  
Vol 53 (6) ◽  
pp. 2908-2917 ◽  
Author(s):  
Mohd Basril Iswadi Basori ◽  
Mohd Shafeea Leman ◽  
Khin Zaw ◽  
Sebastien Meffre ◽  
Ross Raymond Large ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Tectonic Setting ◽  
Peninsular Malaysia ◽  
Zircon Geochronology ◽  
Detrital Zircon Geochronology ◽  
Depositional Age

Detrital Zircon Geochronology by Laser-Ablation Multicollector ICPMS at the Arizona LaserChron Center

2006 ◽  
Vol 12 ◽  
pp. 67-76 ◽  
Author(s):  
George Gehrels ◽  
Victor Valencia ◽  
Alex Pullen
Keyword(s):  
Laser Ablation ◽  
Detrital Zircon ◽  
Low Cost ◽  
Rapid Evolution ◽  
Zircon Geochronology ◽  
Mass Spectrometers ◽  
Detrital Zircon Geochronology ◽  
Depositional Age ◽  
Types Of Information ◽  
Age Determinations

Detrital zircon geochronology is rapidly evolving into a very powerful tool for determining the provenance and maximum depositional age of clastic strata. This rapid evolution is being driven by the increased availability of ion probes and laser ablation ICP mass spectrometers, which are able to generate age determinations rapidly, at moderate to low cost, and of sufficient accuracy for most applications. Improvements in current methods will probably come from enhanced precision/accuracy of age determinations, better tools for extracting critical information from age spectra, abilities to determine other types of information (e.g., REE patterns, O and Hf isotope signatures, and/or cooling ages) from the dated grains, and construction of a database that provides access to detrital zircon age determinations from around the world.

scholarly journals Exhumation history of the Variscan suture: Constrains on the detrital zircon geochronology from Carboniferous–Permian sandstones (Northern Gemericum; Western Carpathians)

2019 ◽  
Vol 70 (6) ◽  
pp. 512-530
Author(s):  
Anna Vozárová ◽  
Katarína Šarinová ◽  
Dušan Laurinc ◽  
Elena Lepekhina ◽  
Jozef Vozár ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Tectonic Setting ◽  
Age Distribution ◽  
Foreland Basin ◽  
Sedimentary Basins ◽  
Distribution Patterns ◽  
Magmatic Zircon ◽  
Detrital Zircon Geochronology ◽  
History Of ◽  
Depositional Age

Abstract The Late Paleozoic sedimentary basins in the Northern Gemericum evolved gradually in time and space within the collisional tectonic regime of the Western Carpathian Variscan orogenic belt. The detrital zircon age spectra, obtained from the Mississippian, Pennsylvanian and Permian metasediments, have distinctive age distribution patterns that reflect the tectonic setting of the host sediments. An expressive unimodal zircon distribution, with an age peak at 352 Ma, is shown by the basal Mississippian metasediments. These represent a relic of the convergent trench-slope sedimentary basin fill. In comparison, the Pennsylvanian detrital zircon populations display distinct multimodal distributions, with the main age peaks at 351, 450, 565 Ma and smaller peaks at ~2.0 and ~2.7 Ga. This is consistent with derivation of clastic detritus from the collisional suture into the foreland basin. Similarly, the Permian sedimentary formations exhibit the multimodal distribution of zircon ages, with main peaks at 300, 355 and 475 Ma. The main difference, in comparison with the Pennsylvanian detrital zircon assemblages, is the sporadic occurrence of the Kasimovian– Asselian (306–294 Ma), as well as the Artinskian–Kungurian (280–276 Ma) igneous zircons. The youngest magmatic zircon ages nearly correspond to the syn-sedimentary volcanic activity with the depositional age of the Permian host sediments and clearly indicate the extensional, rift-related setting.

scholarly journals Depositional constraints from detrital zircon geochronology of strata from multiple lithotectonic belts in south-central Maine, USA

2019 ◽  
pp. 093-136
Author(s):  
Samuel F.A. Cartwright ◽  
David P. West, Jr. ◽  
William H. Amidon
Keyword(s):  
Detrital Zircon ◽  
Tectonic Setting ◽  
Sediment Source ◽  
Zircon Geochronology ◽  
Detrital Zircon Geochronology ◽  
South Central ◽  
Two Samples ◽  
Sediment Input ◽  
Laurentian Margin ◽  
Extensional Setting

The bedrock geology of south-central Maine is characterized by a series of fault-bounded lithotectonic terranes that were accreted onto the Laurentian margin during Silurian-Devonian orogenesis.  The multiple phases of deformation and metamorphism associated with this tectonism obscured most primary features in the protolith rocks, leading to uncertainties in their pre-accretionary history. Here we present the results of detrital zircon geochronology from five of these terranes and make interpretations on their depositional ages, sediment provenance, and tectonic setting of deposition.Detrital zircon from Silurian rocks of the Vassalboro Group in the eastern-most portion of the Central Maine basin indicate sediment input in an extensional setting from both Laurentian and Ordovician sources.  Results from Ordovician rocks of the Casco Bay Group of the Liberty-Orrington belt support earlier findings that these rocks have strong peri-Gondwanan affinities.  Detrital zircon from the Appleton Ridge Formation and Ghent phyllite of the Fredericton trough are consistent with a peri-Gondwanan sediment source with no evidence of Laurentian sediment input.  These findings are consistent with that of Dokken et al. (2018) for older Fredericton trough strata (i.e., Digdeguash Formation) east of the Fredericton fault in southern New Brunswick.  Two samples from the Jam Brook complex reveal extreme differences in depositional age (Ordovician vs. Mesoproterozoic) and tectonic affinity and support the hypothesis that this narrow belt represents a fault complex containing a wide variety of stratigraphic units.  Detrital zircon from Ordovician rocks of the Benner Hill Sequence indicate a peri-Gondwanan sediment source with no Laurentian input.Collectively, the pre-Silurian rocks of the Liberty-Orrington belt, Jam Brook complex, Benner Hill Sequence, and Late Ordovician-Early Silurian strata from the Appleton Ridge and Ghent phyllite in the Fredericton trough show peri-Gondwanan affinities with no evidence of Laurentian sediment input.  This suggests a barrier exisited between the Laurentian margin and these peri-Gondwanan terranes prior to about 435 Ma.  In contrast, Silurian strata from the eastern portion of the Central Maine basin do show evidence of a Laurentian sediment source, along with deposition in an extensional setting (lacking in all other samples), thus signaling a fundamental change in tectonic regime.

Sign in / Sign up

Export Citation Format

Share Document