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RESEARCH ARTICLE Detrital zircon ages in Buller and Takaka terranes, New Zealand: constraints on early Zealandia history CJ Adamsa, N Mortimera, HJ Campbellb* and WL Griffinc aGNS Science, Dunedin, New Zealand; bGNS Science, Lower Hutt, New Zealand; cDepartment of Earth and Planetary Sciences, Australian Research Council Centre of Excellence (ARC CoE) for Core to Crust Fluid …
1 1 Detrital shocked zircon provides first radiometric age constraint 2 (<1472 Ma) for the Santa Fe impact structure, New Mexico, 3 USA 4 Pedro E. Montalvo1, J. Cavosie1,2, Christopher L. Kirkland2, Noreen J. Evans2, 5 Bradley J. McDonald2, Cristina Talavera3,Timmons M. Erickson4, Cristina Lugo-Centeno5 6 1Department of Geology, University of Puerto Rico, P.O. Box 9000, …
New detrital zircon data from a deformed and metamorphosed sedimentary succession exposed in the Picuris Mountains of northern New Mexico challenge this view and suggest that final accretion of the Mazatzal province might not have occurred until ca. 1.45 Ga, 200 m.y. younger than previously thought.
Poughquag detrital zircons (n = 40) are mostly concordant to slightly discordant with Pb-207*/Pb-206* ages of 1.67-0.87 Ga and are consistent with a provenance from the nearby Grenville Structural Province, Two Poughquag zircon grains record Pb-206*/U-238 ages of about 0.64 Ga and 0.55 Ga and could have been derived from rift-related magmatic ...
We present new detrital zircon ages from the Binalud Mountains of NE Iran, in order to determine the timing of tectonic events in the region, and the wider implications for regional tectonics, paleogeography and climate change. Consistent age patterns in Paleozoic clastic rocks show a dominant provenance from the Neoproterozoic basement of ...
Ma Mazatzal Orogeny contain detrital zircon, and U-Pb dating of these zircon aid in determining the maximum depositional age and provenance of these metasedimentary rocks. The Pedernal Hills are located about 54 km south of the boundary between the Yavapai and Mazatzal Provinces, and east of Albuquerque in Torrance County, New Mexico.
New detrital zircon age determinations are presented here for 14 sandstones of mainly Cretaceous age from northern North Island New Zealand. The results provide confirmation of previous interpretations. Most significantly, they also establish a previously unrecognized record of Cretaceous sedimentation within the Waipapa Terrane.
A new and precise evaluation of the mineralogical composition of metamorphic lithic fragments, together with U-Pb detrital zircon ages, helps to clarify the deposition age of these syn-sedimentary volcaniclastic sandstones and constrains their source areas.
Kober, B., Pidgeon, R. T. & Lippolt, H. J. Single-zircon dating by step-wise Pb-evaporation constrains the Archean history of detrital zircons from the …
No analyzed zircon in this sample records an unambiguous Devonian (Acadian) age. Accordingly, during early Paleozoic evolution of the Laurentian foreland basins in New England, detrital zircons do not appear to record contemporaneous orogenic activity but instead are restricted to recycling of the preexisting continental margin.
New detrital U–Pb zircon ages from the Sanandaj–Sirjan metamorphic zone in the Zagros orogenic belt allow discussion of models of the late Neoproterozoic to early Palaeozoic plate tectonic evolution and position of the Iranian microcontinent within a global framework. A total of 194 valid age values from 362 zircon grains were obtained from ...
New detrital U–Pb zircon ages from the Sanandaj–Sirjan metamorphic zone in the Zagros orogenic belt allow discussion of models of the late Neoproterozoic to early Palaeozoic plate tectonic evolution and position of the Iranian microcontinent within a global framework. A total of 194 valid age values from 362 zircon grains were obtained from ...
New detrital zircon age data of metasedimentary rocks from the Spessart and Odenwald basement (Mid-German Crystalline Zone, Variscides) revealed results, which are not compatible with current tectonic models. The previously proposed existence of a tectonic window, which includes lower plate Rhenohercynian rocks within the upper plate (Saxothuringian Zone) in the Spessart and …
Detrital zircon U–Pb geochronology has enabled advances in the understanding of sediment provenance, transportation pathways, and the depositional age of sedimentary packages. However, sample selection and processing can result in biasing of detrital zircon age spectra. This paper presents a novel approach using in-situ detrital zircon U–Pb measurements on thin sections to …
Detrital zircon geochronology from the Cambrian-Ordovician Bliss Sandstone, New Mexico: evidence for contrasting Grenville-age and Cambrian sources on opposite sides of the Transcontinental Arch Geological Society of America Bulletin, 124 ( 2012 ), pp. 1826 - 1840, 10.1130/B30657.1
Detrital zircon studies are providing new insights on the evolution of sedimentary basins but the role of sedimentary recycling remains largely undefined. In a broad region of northwestern North America, this contribution traces the pathway of detrital zircon sand grains from Proterozoic sandstones through Phanerozoic strata and argues for multi-stage sedimentary recycling over more than a ...
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.
We present new detrital zircon U-Pb data from four formations of the Kingsclear Group, collected north and south of the Fredericton Fault, which bisects the trough. South of the Fredericton Fault, detrital zircon ages from an early Silurian …
Detrital zircon U-Pb geochronology of metasedimentary strata across western North America has revealed varied sedimentary sources from both within and without the Laurentian craton that shift through time and space (e.g. Gehrels and Pecha, 2014). The Morrison block, a parautochthonous Cambrian-Permian structural block exposed along the ...
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 ...
New York (NY) by previous workers suggest they would be at least partially correlative. Detrital zircon studies have been completed on the Potsdam Group by others to identify to help constrain the age and provenance of this stratigraphy. This study
The new detrital zircon U–Pb age results form this study highlight distinctive signatures for each of the various tectonic phases including (i) the passive margin of the pre-Zagros orogeny, (ii) the proto-Zagros foreland basin stage related to the obduction of the Neotethys oceanic crust, and (iii) the Neogene Zagros basins related to the ...
Provenance variations in northern Appalachian Avalonia based on Detrital zircon age patterns in Ediacaran and Cambrian sedimentary rocks, New Brunswick and Nova Scotia, Canada S. Barr, M. Hamilton, S. Samson, A. Satkoski, C. E. White
Six detrital shocked zircon grains were found at three locations, including two near shatter cones and one near brecciated granitoid. Follow-up studies of bedrock at two sites proximal to detrital shocked zircon occurrences led to the discovery of shocked zircon in situ in a shatter cone-bearing sample of biotite schist; shocked grains were not ...
Five of seven detrital zircon age peaks are broadly coincident with the crystallisation ages of ~ 1.89–1.83 Ga, ~ 1.43 Ga, ~ 1.0–0.98 Ga and ~ 0.82–0.72 Ga for known igneous rocks exposed in Cathaysia, whereas, igneous rocks with ages of ~ 2.49 Ga and ~ 0.59 Ga have not yet been found.
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 ...
Detrital zircon surface features and U–Pb dating results confirm that the zircon population in the Magura Basin Palaeogene deposits was derived from diverse sources. The zircon grain morphology and internal structure indicate magmatic and metamorphic origin, many grains were recycled and a significant number with euhedral morphology indicate ...
Detrital zircon geochronology is rapidly developing into an essential tool in Earth science research because of the widespread occurrence of zircon in sedimentary systems; the wide range of information that can be extracted from zircon crystals; the ability to determine ages with reasonable precision, accuracy, and efficiency; and the wide range of new ideas about how to use detrital zircon ...
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. Using laser-ablation inductively coupled plasma mass spectrometry, a total of 1151 zircon grains from six Ordovician to ...
This study assesses early Mesozoic provenance linkages and paleogeographic-tectonic models for the western United States based on new petrographic and detrital zircon data from Triassic and Jurassic sandstones of the "Izee" and Olds Ferry terranes of the Blue Mountains Province, northeastern Oregon. Triassic sediments were likely derived from the Baker terrane offshore accretionary subduction ...
New detrital zircon ages from the southwestern Tarim Basin range from 45 to 65 Ma. • Two major changes in source-to-sink relationship occurred since the Middle Eocene. • Connection may exist between the central-south Pamir salient and basin continuously.
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.
Bullard, Abigail R., "New CA-ID-TIMS Detrital Zircon Constraints on Middle Neoproterozoic Sedimentary Successions, Southwestern United States" (2018). All Graduate Theses and Dissertations. 7324. https://digitalcommons.usu.edu/etd/7324 This Thesis is brought to you for free and open access by the Graduate Studies at DigitalCommons@USU. It has