Detrital Zircon U‐Pb Geochronology: Current …
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 inductively coupled plasma (ICP) mass spectrometers, which are able to generate ages efficiently and with sufficient accuracy for most ...
New insights on the Triassic tectonic development …
These observations and new U-Pb ages and Hf isotope data for detrital zircons obtained from Middle Triassic turbidites and approximately correlative Ladinian floodplain deposits suggest that the sediments were not derived from the hypothesized collisional orogen, but for the most part came from a poorly preserved arc associated with the convergent plate boundary of southern China.
Detrital-zircon geochronology and sedimentary …
Detrital zircons in the Paleozoic succession in the Grand Canyon exhibit distinctive components of the age population, and those ages are used to identify a provenance (Gehrels et al., 2011).For the younger components of the detrital-zircon population, the source for sediment in the Mississippian–Permian succession in the Grand Canyon is identified specifically as the distant Appalachian ...
Detrital zircon ages and Hf isotopes of the early ...
Detrital zircon ages and Hf isotopes of the early Paleozoic flysch sequence in the Chinese Altai, NW China: New constrains on depositional age, provenance and tectonic evolution. Author links open overlay panel Xiaoping Long a Chao Yuan a Min Sun b Wenjiao Xiao c Guochun Zhao b Yujing Wang a Keda Cai b Xiaoping Xia b Liewen Xie c.
Detrital fingerprint: The use of early Precambrian …
B–E. Cumulative proportion curves of detrital zircon U–Pb ages from samples (thin lines) and datasets (thick lines) of early Permian siliciclastic units (Nambucca Slate, Kempsey beds, and Dyamberin beds) from the New England domain (eastern Australia), and equivalent data from other Devonian–Permian metasedimentary successions throughout the whole New England domain.
When Did the Paleotethys Ailaoshan Ocean Close: …
We present new laser ablation (LA)‐multicollector‐inductively coupled plasma mass spectrometry detrital zircon U‐Pb age and Hf isotope data of the Triassic sedimentary rocks from the eastern and western sides of the Ailaoshan suture in SW China, which separate the Indochina and South China blocks.
Age and origin of the Merrimack terrane, …
Metasedimentary rocks of the Merrimack terrane (MT) originated as a thick cover sequence on Ganderia consisting of sandstones, calcareous sandstones, pelitic rocks and turbidites. In order to investigate the age, provenance and stratigraphic order of these rocks and correlations with adjoining terranes, detrital zircon suites from 7 formations across the MT along a NNE-trending transect from ...
Detrital zircon U-Pb geochronology and Hf isotope ...
Detrital zircon U-Pb geochronology and Hf isotope geochemistry provide new insights into the provenance, sedimentary transport, and tectonic evolution of the Roberts Mountains allochthon strata of north-central Nevada.
Detrital zircon geochronology of Cordilleran …
[1] We present a compilation of 8717 U‐Pb analyses from 95 detrital zircon samples of Jurassic‐Eocene North American Cordillera foreland basin strata. Of these samples, 30 are new and previously unpublished. Variation in detrital zircon age spectra between samples records erosion or recycling of basement and cover rocks within the Cordilleran orogenic wedge.
(PDF) REVISED INTERPRETATIONS OF DETRITAL …
PDF | Detrital zircon stone populations in the internally drained, intracratonic Mesoproterozoic Belt-Purcell Basin differ in the eastern, southern and... | Find, read and cite all the research ...
Detrital Zircon U-Pb Geochronology: Current …
30-1-2012 · T1 - Detrital Zircon U-Pb Geochronology. T2 - Current Methods and New Opportunities. AU - Gehrels, George. PY - 2012/1/30. Y1 - 2012/1/30. N2 - Detrital zircon geochronology is rapidly evolving into a very powerful tool for determining the provenance and maximum depositional age of clastic strata.
New constraints from detrital zircon ages on …
New U-Pb zircon ages of detrital zircon of Neoproterozoic to Fortunian siliciclastics from the Schwarzburg Antiform in the Saxo-Thuringian Zone (NE Bohemian Massif) identify the West African ...
Detrital zircon U–Pb geochronology and …
6-3-2019 · Detrital zircon U–Pb geochronology and geochemistry of late Neoproterozoic – early Cambrian sedimentary rocks in the Cathaysia Block: constraint on its palaeo-position in Gondwana supercontinent - Volume 156 Issue 9 - Chen Xiong, Yaoling Niu, Hongde Chen, Anqing Chen, Chenggong Zhang, Feng Li, Shuai Yang, Shenglin Xu
New Techniques of LASS-ICPMS Depth Profiling …
Detrital zircon U-Pb age dating has become a widely used tool for determining sediment provenance in basins and orogenic systems. While traditional LA-ICPMS zircon geochronology is powerful, it has limitations when source regions are characterized by monotonous or non-diagnostic crystallization ages or by major sediment recycling and homogenization, leading to minimal zircon age variability.
Minerals | Free Full-Text | Morphology of Detrital …
Deltaic areas and marginal seas are important archives that document information on regional tectonic movement, sea level rise, river evolution, and climate change. Here, sediment samples from boreholes of the Yangtze Delta and the modern Yangtze drainage were collected. A quantitative analysis of detrital zircon morphology was used to discuss the provenance evolution of the Yangtze Delta.
Detrital zircon geochronology and sandstone …
Detrital zircon geochronology and sandstone provenance of basement Waipapa Terrane (Triassic–Cretaceous) and Cretaceous cover rocks (Northland Allochthon and Houhora Complex) in northern North Island, New Zealand - Volume 150 Issue 1 - C. J. ADAMS, N. MORTIMER, H. J. CAMPBELL, W. L. GRIFFIN
Measuring the Great Unconformity on the North …
New detrital zircon ages confirm that the Neoproterozoic strata of the southeastern North China Craton (NCC) are mostly of early Tonian age, but that the Gouhou Formation, previously assigned to the Tonian, is Cambrian in age. A discordant hiatus of >150–300 myr occurs across the NCC, spanning most of the late Tonian, Cryogenian, Ediacaran and early Cambrian periods. This widespread ...
Research in Detrital Zircon Dating - New Mexico …
Faculty Jeff Amato Professor, Structural geology, tectonics, and geochronology 575-646-3017, Gardiner 160 [email protected] Brian Hampton Assistant Professor, Sedimentology and stratigraphy 575-646-2997, Gardiner 158 [email protected]
Detrital Zircon Geochronology: New Evidence for …
Detrital Zircon Geochronology: New Evidence for an Old Model for Accretion of the Southwest Baltic Shield. de Haas GJ, Andersen T, Vestin J. Disruption of the original crustal architecture as a result of tectonic events often complicates studies of the crustal evolution of Precambrian cratons.