scholarly journals Morphology of Detrital Zircon as a Fingerprint to Trace Sediment Provenance: Case Study of the Yangtze Delta

Minerals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 438 ◽  
Author(s):  
Wei Yue ◽  
Xiyuan Yue ◽  
Lingmin Zhang ◽  
Xianbin Liu ◽  
Jian Song
Keyword(s):  
Detrital Zircon ◽  
Sediment Provenance ◽  
The Tibetan Plateau ◽  
Yangtze Delta ◽  
Marginal Seas ◽  
Source To Sink ◽  
Regional Tectonic ◽  
Yangtze Basin ◽  
Zircon Morphology ◽  
Provenance Evolution

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. This research demonstrated that a dramatic change in sediment provenance occurred in the transition from the Pliocene to Quaternary. Zircon grains in the Pliocene sediments featured euhedral crystals with large elongation (>3 accounted for 13.2%) and were closely matched to tributary samples in the Lower Yangtze (>3 accounted for 11.3%), suggesting sediment provenance from the proximal river basin. However, most detrital zircon grains of the Quaternary samples exhibited lower values of elongation and increased roundness (rounded grains were 9.4%), which was similar to those found in the modern Yangtze mainstream (rounded grains were 12.5%) and the middle tributaries (rounded grains were 7.0%). The decrease in zircon elongation and improvement of its roundness in the Quaternary strata implied that the Yangtze Delta received sediments of different provenance that originated from the Middle-Upper Yangtze basin due to the uplift of the Tibetan Plateau. Statistical analysis of detrital zircon morphology has proven useful for studying the source-to-sink of sediments.

scholarly journals Provenance Shift during the Plio-Pleistocene in the Vertex of Yangtze Delta and Its Geomorphological Implications

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 996
Author(s):  
Junjie Yu ◽  
Wei Yue ◽  
Ping Liu ◽  
Bo Peng ◽  
Jie Zhang ◽  
...  
Keyword(s):  
Yangtze River ◽  
River Channel ◽  
Heavy Minerals ◽  
Tectonic Subsidence ◽  
Zircon Geochronology ◽  
The Yangtze River ◽  
Yangtze Delta ◽  
The South ◽  
Source To Sink ◽  
Regional Tectonic

One of the key issues of the Source-to-Sink process is revealing the geomorphological evolutions of large rivers from the perspective of river sink areas. This study aims to reveal the provenance change near the vertex of the Yangtze delta during the late Cenozoic and provide insight into the Yangtze channelization into the sea due to regional tectonic subsidence. Heavy minerals and zircon geochronology in the Plio-Pleistocene sediments of the vertex of the modern Yangtze delta (core RGK15) reveal that a significant provenance shift occurred at ~2.6 Ma (the beginning of the Pleistocene). During the Pliocene, ultra-stable heavy minerals and pre-Mesozoic zircon grains predominated in the sediments, probably derived from contemporary outcrops of sedimentary rock that were widely distributed in the delta and its surrounding area. They are completely different from those in the Pliocene sediments of the south delta, indicating that decentralized, local, small watersheds dominated the Yangtze delta during the Pliocene. This resulted from the relatively elevated terrain of this region due to the adjacent ancient Zhejiang–Fujian Uplift (ZFU) at that time. However, diversified heavy minerals and zircon geochronology similar to those of the modern upper Yangtze fingerprints occur in the Pleistocene sediments of core RGK15, implying that a significant provenance shift to the Yangtze River occurred here at ~2.6 Ma. The provenance shift recorded by the cores in the south delta mainly occurred at ~1.2 Ma, indicating that the Yangtze River channel was dragged southward with the further subsidence of the ancient Zhejiang–Fujian Uplift. This study reveals the southward migration process of the Yangtze River channel with the regional tectonic subsidence from the perspective of provenance evolution, which contributes to an understanding of when the Yangtze River channelized into the sea.

scholarly journals Tectonic controls on sediment provenance evolution in rift basins: Detrital zircon U–Pb and Hf isotope analysis from the Perth Basin, Western Australia

2019 ◽  
Vol 66 ◽  
pp. 126-142 ◽  
Author(s):  
Hugo K.H. Olierook ◽  
Milo Barham ◽  
Ian C.W. Fitzsimons ◽  
Nicholas E. Timms ◽  
Qiang Jiang ◽  
...  
Keyword(s):  
Western Australia ◽  
Detrital Zircon ◽  
Isotope Analysis ◽  
Hf Isotope ◽  
Sediment Provenance ◽  
Rift Basins ◽  
Provenance Evolution

scholarly journals Comparison of Detrital Zircon U-Pb and Muscovite 40Ar/39Ar Ages in the Yangtze Sediment: Implications for Provenance Studies

Minerals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 643
Author(s):  
Xilin Sun ◽  
Klaudia F. Kuiper ◽  
Yuntao Tian ◽  
Chang’an Li ◽  
Zengjie Zhang ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
Yangtze River ◽  
Laser Spot ◽  
Sediment Provenance ◽  
Main Trunk ◽  
Provenance Studies ◽  
Regional Tectonic ◽  
Dadu River ◽  
Lower Yangtze ◽  
Potential Factors

Detrital zircon U-Pb and muscovite 40Ar/39Ar dating are useful tools for investigating sediment provenance and regional tectonic histories. However, the two types of data from same sample do not necessarily give consistent results. Here, we compare published detrital muscovite 40Ar/39Ar and zircon U-Pb ages of modern sands from the Yangtze River to reveal potential factors controlling differences in their provenance age signals. Detrital muscovite 40Ar/39Ar ages of the major tributaries and main trunk suggest that the Dadu River is a dominant sediment contributor to the lower Yangtze. However, detrital zircon data suggest that the Yalong, Dadu, and Min rivers are the most important sediment suppliers. This difference could be caused by combined effects of lower reaches dilution, laser spot location on zircons and difference in closure temperature and durability between muscovite and zircon. The bias caused by sediment laser spot targeting a core or rim of zircon and zircon reworking should be considered in provenance studies.

scholarly journals U–Pb age and Lu–Hf signatures of detrital zircon from Palaeozoic sandstones in the Oslo Rift, Norway

2013 ◽  
Vol 151 (5) ◽  
pp. 816-829 ◽  
Author(s):  
MAGNUS KRISTOFFERSEN ◽  
TOM ANDERSEN ◽  
ARILD ANDRESEN
Keyword(s):  
Detrital Zircon ◽  
Inductively Coupled Plasma ◽  
Late Carboniferous ◽  
Isotopic Signatures ◽  
Inductively Coupled ◽  
Source To Sink ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Isotope Analyses ◽  
Multiple Episodes

AbstractU–Pb and Lu–Hf isotope analyses of detrital zircon from the latest Ordovician (Hirnantian) Langøyene Formation, the Late Silurian Ringerike Group and the Late Carboniferous Asker Group in the Oslo Rift were obtained by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Overall the U–Pb dating yielded ages within the range 2861–313 Ma. The U–Pb age and Lu–Hf isotopic signatures correspond to virtually all known events of crustal evolution in Fennoscandia, as well as synorogenic intrusions from the Norwegian Caledonides. Such temporally and geographically diverse source areas likely reflect multiple episodes of sediment recycling in Fennoscandia, and highlights the intrinsic problem of using zircon as a tracer-mineral in ‘source to sink’ sedimentary provenance studies. In addition to its mostly Fennoscandia-derived detritus, the Asker Group also have zircon grains of Late Devonian – Late Carboniferous age. Since no rocks of these ages are known in Fennoscandia, these zircons are inferred to be derived from the Variscan Orogen of central Europe.

Sediment provenance in contractional orogens: The detrital zircon record from modern rivers in the Andean fold-thrust belt and foreland basin of western Argentina

2017 ◽  
Vol 479 ◽  
pp. 83-97 ◽  
Author(s):  
Tomas N. Capaldi ◽  
Brian K. Horton ◽  
N. Ryan McKenzie ◽  
Daniel F. Stockli ◽  
Margaret L. Odlum
Keyword(s):  
Detrital Zircon ◽  
Foreland Basin ◽  
Sediment Provenance ◽  
Thrust Belt

scholarly journals Supplemental Material: Late Pleistocene–Holocene flood history, flood-sediment provenance and human imprints from the upper Indus River catchment, Ladakh Himalaya

2021 ◽  
Author(s):  
Choudhurimayum Pankaj Sharma ◽  
Pradeep Srivastava
Keyword(s):  
Late Pleistocene ◽  
Growth Curve ◽  
Detrital Zircon ◽  
Sediment Provenance ◽  
Indus River ◽  
River Catchment ◽  
Recovery Test ◽  
Infrared Stimulated Luminescence ◽  
Ladakh Himalaya ◽  
Radial Plot

Figure S1: (A) Infrared Stimulated Luminescence (IRSL) of LD-1818 exhibiting feldspar contamination. (B) IRSL counts of all samples after complete etching including LD-1818 after re-etching. (C) Optical Stimulated Luminescence (OSL) decay curves of all samples; Figure S2: (A) Pre heat test (dotted line represents 220 °C plateau) and (B) Dose recovery test of LD-3170; Figure S3: OSL characteristics of LD-2011. (A) Probably distribution of ED all discs and (B) Sensitivity corrected luminescence growth curve; Figure S4: Radial plot of all OSL samples with ages; Table S1: Elemental, isotopic and age details of detrital zircon U-Pb geochronology of paleoflood deposits.

Late Paleozoic tectonism of the Bogda region in  Chinese North Tianshan: Insights from sedimentary provenance analysis

2021 ◽  
Author(s):  
Qian Wang ◽  
Guochun Zhao ◽  
Yigui Han ◽  
Jinlong Yao
Keyword(s):  
Detrital Zircon ◽  
Detrital Zircons ◽  
Late Paleozoic ◽  
Provenance Analysis ◽  
The North ◽  
Tectonic Transition ◽  
Isotopic Analyses ◽  
Zircon Morphology ◽  
Detrital Zircon Ages ◽  
T Values

<p>The Chinese North Tianshan (CNTS) extends E-W along the southern part of the Central Asian Orogenic Belt and has undergone complicated accretion-collision processes in the Paleozoic. This study attempts to clarify the late Paleozoic tectonism in the region by investigating the provenance of the Late Paleozoic sedimentary successions from the Bogda Mountain in the eastern CNTS by U-Pb dating and Lu-Hf isotopic analyses of detrital zircons. Detrital zircon U-Pb ages (N=519) from seven samples range from 261 ± 4 Ma to 2827 ± 32 Ma, with the most prominent age peak at 313 Ma. There are Precambrian detrital zircon ages (~7%) ranged from 694 to 1024 Ma. The youngest age components in each sample yielded weighted mean ages ranging from 272 ± 9 Ma to 288 ± 5 Ma, representing the maximum depositional ages. These and literature data indicate that some previously-assumed “Carboniferous” strata in the Bogda area were deposited in the Early Permian, including the Qijiaojing, Julideneng, Shaleisaierke, Yangbulake, Shamaershayi, Liushugou, Qijiagou, and Aoertu formations. The low maturity of the sandstones, zircon morphology and provenance analyses indicate a proximal sedimentation probably sourced from the East ­Junggar Arc and the Harlik-Dananhu Arc in the CNTS. The minor Precambrian detrital zircons are interpreted as recycled materials from the older strata in the Harlik-Dananhu Arc. Zircon ɛ<sub>Hf</sub>(t) values have increased since ~408 Ma, probably reflecting a tectonic transition from regional compression to extension. This event might correspond to the opening of the Bogda intra-arc/back arc rift basin, possibly resulting from a slab rollback during the northward subduction of the North Tianshan Ocean. A decrease of zircon ɛ<sub>Hf</sub>(t) values at ~300 Ma was likely caused by the cessation of oceanic subduction and subsequent collision, which implies that the North Tianshan Ocean closed at the end of the Late Carboniferous. This research was financially supported by the Youth Program of Shaanxi Natural Science Foundation (2020JQ-589), the NSFC Projects (41730213, 42072264, 41902229, 41972237) and Hong Kong RGC GRF (17307918).</p>

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