UPb LA-(MC)-ICP-MS dating of rutile: New reference materials and applications to sedimentary provenance

Bracciali, Laura; Parrish, Randall R.; Horstwood, Matthew; Condon, Daniel J.; Najman, Yani

doi:10.1016/j.chemgeo.2013.03.013

Cited by 86 publications

(40 citation statements)

References 64 publications

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“…U-Pb dates from single detrital zircons represent high-T igneous and metamorphic events in the source regions, while rutile, a medium-T chronometer, tracks mainly the time of cooling through ∼500 • C (Bracciali et al, 2013). The two chronometers applied to the same sample provide key complementary information about the thermal events in the source region.…”

Section: Early Miocene River Capture Of the Yarlung Tsangpo By The Brmentioning

confidence: 99%

“…Relative probability plots and frequency diagrams of zircon and rutile single grain U-Pb data are plotted in the range 0-150 and 0-50 Ma, respectively, and in the 0-2.5 and 0-0.8 Ga range. Percentages: number of grains younger than 150 and 50 Ma as compared to n, the total number of individual ablations after rejection of discordant zircon datapoints (Supplemental Table S2) and common Pb correction of discordant rutile datapoints (as described in Bracciali et al, 2013;Supplemental Table S4). Concordia diagrams are in Supplemental Fig.…”

Section: Laser Ablation U-pb Dating Of Zircon and Rutilementioning

confidence: 99%

“…2 and 3. Discordant rutile datapoints were common Pb corrected as described in Bracciali et al (2013). When two zircon or rutile dates from the same grain overlapped within uncertainty, only the one determined with the lower uncertainty was included in the final probability plot.…”

Section: Laser Ablation U-pb Dating Of Zircon and Rutilementioning

confidence: 99%

“…One zircon sample and four rutile samples are fromHenderson et al (2010) andBracciali et al (2013), respectively. Sample locations (A-I and Z) as shown inFig.…”

mentioning

confidence: 99%

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The Brahmaputra tale of tectonics and erosion: Early Miocene river capture in the Eastern Himalaya

Bracciali

Najman

Parrish

et al. 2015

Earth and Planetary Science Letters

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119

104

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The Himalayan orogen provides a type example on which a number of models of the causes and consequences of crustal deformation are based and it has been suggested that it is the site of a variety of feedbacks between tectonics and erosion. Within the broader orogen, fluvial drainages partly reflect surface uplift, different climatic zones and a response to crustal deformation. In the eastern Himalaya, the unusual drainage configuration of the Yarlung Tsangpo-Brahmaputra River has been interpreted either as antecedent drainage distorted by the India-Asia collision (and as such applied as a passive strain marker of lateral extrusion), latest Neogene tectonically-induced river capture, or glacial damming-induced river diversion events.Here we apply a multi-technique approach to the Neogene paleo-Brahmaputra deposits of the Surma Basin (Bengal Basin, Bangladesh) to test the long-debated occurrence and timing of river capture of the Yarlung Tsangpo by the Brahmaputra River. We provide U-Pb detrital zircon and rutile, isotopic (Sr-Nd and Hf) and petrographic evidence consistent with river capture of the Yarlung Tsangpo by the Brahmaputra River in the Early Miocene. We document influx of Cretaceous-Paleogene zircons in Early Miocene sediments of the paleo-Brahmaputra River that we interpret as first influx of material from the Asian plate (Transhimalayan arc) indicative of Yarlung Tsangpo contribution. Prior to capture, the predominantly Precambrian-Paleozoic zircons indicate that only the Indian plate was drained. Contemporaneous with Transhimalayan influx reflecting the river capture, we record arrival of detrital material affected by Cenozoic metamorphism, as indicated by rutiles and zircons with Cenozoic UPb ages and an increase in metamorphic grade of detritus as recorded by petrography. We interpret this as due to a progressively increasing contribution from the erosion of the metamorphosed core of the orogen. Whole rock Sr-Nd isotopic data from the same samples provide further support to this interpretation. River capture may have been caused by a change in relative base level due to uplift of the Tibetan plateau. Assuming such river capture occurred via the Siang River in the Early Miocene, we refute the "tectonic aneurysm" model of tectonic-erosion coupling between river capture and rapid exhumation of the eastern syntaxis, since a time interval of at least 10 Ma between these two events is now demonstrated. This work is also the first to highlight U-Pb dating on detrital rutile as a powerful approach in provenance studies in the Himalaya in combination with zircon U-Pb chronology.

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Section: Early Miocene River Capture Of the Yarlung Tsangpo By The Brmentioning

confidence: 99%

Section: Laser Ablation U-pb Dating Of Zircon and Rutilementioning

confidence: 99%

Section: Laser Ablation U-pb Dating Of Zircon and Rutilementioning

confidence: 99%

“…One zircon sample and four rutile samples are fromHenderson et al (2010) andBracciali et al (2013), respectively. Sample locations (A-I and Z) as shown inFig.…”

mentioning

confidence: 99%

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The Brahmaputra tale of tectonics and erosion: Early Miocene river capture in the Eastern Himalaya

Bracciali

Najman

Parrish

et al. 2015

Earth and Planetary Science Letters

Self Cite

119

104

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“…Previous studies on in situ cassiterite U-Pb dating so far published have all been carried out using LA-MC-ICP-MS. In addition to cassiterite, other U-bearing accessory phases such as zircon (Machado and Simonetti, 2002), baddeleyite, monazite, titanite (Simonetti et al, 2006), and rutile (Bracciali et al, 2013) Pb ratios. As discussed above, the Tera-Wasserburg concordia diagram is the best way to obtain U-Pb ages for minerals with high common Pb.…”

Section: La-mc-icp-ms Versus La-icp-msmentioning

confidence: 99%

Dating cassiterite using laser ablation ICP-MS

Zhang

Ding

et al. 2016

Ore Geology Reviews

115

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Detrital zircon U–Pb ages of Tertiary sequences (Palaeocene‐Miocene): Inner Fold Belt and Belt of Schuppen, Indo‐Myanmar Ranges, India

et al. 2022

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The along‐strike heterogeneity in the tectonics of Himalaya is well recognized; however, the eastern segment of Himalaya is less studied compared to the other segments. This study combines the comprehensive field data, as well as the U–Pb geochronology of sandstone samples from the Indo‐Burma Range (east India). The study shows that the Lower Disang Formation was deposited in an open marine environment with a steep gradient during the Late Cretaceous to Mid‐Eocene, accommodating the detritus solely from an Indian source. Furthermore, during the Early to Late Eocene interval, the sedimentary basin changed to a shallow marine shelf when the sediments from Himalayan as well as trans‐Himalaya were deposited. The Upper Disang Formation must have been deposited just before or during the collision process between the Indian and Asian plates. After the India‐Asian collision, there was a remnant ocean, in which the sediments of the Barail and Surma groups were deposited in the shallow marine to deltaic environments. The Tethys Ocean completely dried out in the Late Miocene resulting in a change from marine to fluvial environments, which facilitated the deposition of the sandstones of the Tipam Formation. Based on the U–Pb ages, the Palaeogene basin history in the Indo‐Burma Range was unlike the central Himalaya, that is, the detritus were mainly sourced from the Burmese Plate and adjoining magmatic rocks.

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UPb LA-(MC)-ICP-MS dating of rutile: New reference materials and applications to sedimentary provenance

Cited by 86 publications

References 64 publications

The Brahmaputra tale of tectonics and erosion: Early Miocene river capture in the Eastern Himalaya

The Brahmaputra tale of tectonics and erosion: Early Miocene river capture in the Eastern Himalaya

Dating cassiterite using laser ablation ICP-MS

Detrital zircon U–Pb ages of Tertiary sequences (Palaeocene‐Miocene): Inner Fold Belt and Belt of Schuppen, Indo‐Myanmar Ranges, India

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