Sedimentary provenance of Mid-Devonian clastic sediments in the Teplá-Barrandian Unit (Bohemian Massif): U–Pb and Pb–Pb geochronology of detrital zircons by laser ablation ICP-MS

2005 ◽  
Vol 84 (1-2) ◽  
pp. 47-68 ◽  
Author(s):  
L. Strnad ◽  
M. Mihaljevič
Keyword(s):  
Laser Ablation ◽  
Bohemian Massif ◽  
Detrital Zircons ◽  
Sedimentary Provenance ◽  
Clastic Sediments ◽  
Icp Ms

U-Pb (LA-ICP-MS) dating of detrital zircons from clastic sediments of upper part of Precambrian basement of Northern Timan

2017 ◽  
Vol 92 (1) ◽  
Author(s):  
V. L. Andreichev ◽  
◽  
A. A. Soboleva ◽  
J. K. Hourigan ◽  
◽  
...  
Keyword(s):  
Weighted Average ◽  
Sediment Deposition ◽  
Detrital Zircons ◽  
Precambrian Basement ◽  
Terrigenous Material ◽  
Clastic Sediments ◽  
Icp Ms ◽  
Crystalline Complexes Of

The article presents the first U–Pb data on the age of detrital zircons from clastic sediments of Yambozero Formation (Barmin Group) which constitutes the upper part of the Precambrian sequence of the Northern Timan. Age data for 80 zircon grains (LA-ICP-MS) cover the range of 989–2713 Ma. Weighted average age of the three youngest zircons yields the age of 1004±15 Ma which provides grounds to assume that sediment deposition took place in late Riphean (Neoproterozoic). The accumulation of clastic sediments of Yambozero Formation was controlled mostly with terrigenous material from eroded rock complexes coeval with crystalline complexes of Fennoscandia and Central Russian Belt.

U-Pb (LA-ICP-MS) dating of detrital zircons from clastic sediments composing lowest part of Precambrian sequence of Northern Timan

2018 ◽  
Vol 93 (2) ◽  
Author(s):  
V. L. Andreichev ◽  
◽  
A. A. Soboleva ◽  
V. B. Khubanov ◽  
I. D. Sobolev ◽  
...  
Keyword(s):  
Weighted Average ◽  
Sediment Deposition ◽  
Detrital Zircons ◽  
Terrigenous Material ◽  
Fine Grained ◽  
Clastic Sediments ◽  
Icp Ms ◽  
Group 5 ◽  
Crystalline Complexes Of

The article presents the first U-Pb data on the age of detrital zircons from clastic sediments of Rumyanichnaya Formation included in Barma Group which constitutes the lowest outcropped part of the Precambrian sequence of the Northern Timan. Age data (LA-ICP-MS) for 94 zircon grains from fine-grained aleuritic sandstone cover the range of 981–2582 Ma. Weighted average age of the two youngest zircons yields the age of 983±40 Ma which provides grounds to assume that sediment deposition took place in Late Riphean (Neoproterozoic). The accumulation of clastic sediments that compose the all three formations of Barma Group (~5 km thick) was controlled mostly with terrigenous material from eroded rock complexes coeval with crystalline complexes of Fennoscandia and Central Russian Belt.

scholarly journals Comment on “Ultrapotassic magmatism in the heyday of the Variscan Orogeny: the story of the Třebíč Pluton, the largest durbachitic body in the Bohemian Massif” by Janoušek et al.

2021 ◽  
Author(s):  
U. Schaltegger ◽  
S. P. Gaynor ◽  
P. Widmann ◽  
J. Kotková
Keyword(s):  
Laser Ablation ◽  
High Precision ◽  
Bohemian Massif ◽  
Variscan Orogeny ◽  
Error Assessment ◽  
Icp Ms ◽  
Two Samples ◽  
Age Determinations

AbstractThis comment addresses the incorrect treatment and presentation of data from laser ablation ICP-MS U–Pb age determinations of two samples of the Třebíč Pluton. This results in inaccurate ages and error assessment, invalidating the age interpretations of the authors. To corroborate our arguments, new high-precision chemical abrasion ID-TIMS data are presented that unequivocally define the emplacement age of the Třebíč pluton.

TRACE ELEMENT ANALYSIS OF PYRITES IN GAS SHALES BY LASER ABLATION ICP-MS: IMPLICATIONS FOR MOBILITY

2017 ◽  
Author(s):  
Amy K. Plechacek ◽  
◽  
Madeline E. Schreiber ◽  
John A. Chermak ◽  
Tracy L. Bank
Keyword(s):  
Laser Ablation ◽  
Trace Element ◽  
Trace Element Analysis ◽  
Element Analysis ◽  
Icp Ms ◽  
Gas Shales

scholarly journals Quantitative Determination of the Surface Distribution of Supported Metal Nanoparticles: A Laser Ablation–ICP–MS Based Approach

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 77
Author(s):  
Davide Spanu ◽  
Gilberto Binda ◽  
Marcello Marelli ◽  
Laura Rampazzi ◽  
Sandro Recchia ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Laser Ablation ◽  
Quantitative Determination ◽  
Metal Nanoparticles ◽  
Total Mass ◽  
Functional Materials ◽  
Metal Extraction ◽  
Ms Analysis ◽  
Icp Ms

A laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS) based method is proposed for the quantitative determination of the spatial distribution of metal nanoparticles (NPs) supported on planar substrates. The surface is sampled using tailored ablation patterns and the data are used to define three-dimensional functions describing the spatial distribution of NPs. The volume integrals of such interpolated surfaces are calibrated to obtain the mass distribution of Ag NPs by correlation with the total mass of metal as determined by metal extraction and ICP–MS analysis. Once this mass calibration is carried out on a sacrificial sample, quantifications can be performed over multiple samples by a simple micro-destructive LA–ICP–MS analysis without requiring the extraction/dissolution of metal NPs. The proposed approach is here tested using a model sample consisting of a low-density polyethylene (LDPE) disk decorated with silver NPs, achieving high spatial resolution over cm2-sized samples and very high sensitivity. The developed method is accordingly a useful analytical tool for applications requiring both the total mass and the spatial distribution of metal NPs to be determined without damaging the sample surface (e.g., composite functional materials and NPs, decorated catalysts or electrodic materials).

scholarly journals An Investigation of the Wild Rat Crown Incisor as an Indicator of Lead (Pb) Exposure Using Inductively Couple Plasma Mass Spectrometry (ICP-MS) and Laser Ablation ICP-MS

2021 ◽  
Vol 18 (2) ◽  
pp. 767
Author(s):  
Andrew Kataba ◽  
Shouta M. M. Nakayama ◽  
Hokuto Nakata ◽  
Haruya Toyomaki ◽  
Yared B. Yohannes ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Couple Plasma ◽  
Health Concern ◽  
Sprague Dawley ◽  
Rat Incisor ◽  
Sprague Dawley Rats ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Pb Exposure

Lead (Pb) is a metal toxicant of great public health concern. The present study investigated the applicability of the rat incisor in Pb exposure screening. The levels of lead in teeth (Pb-T) in the crown and root of incisors in laboratory Pb-exposed Sprague Dawley rats were quantified using inductively coupled plasma mass spectrometry (ICP-MS). The crown accumulated much Pb-T than the root of the Sprague Dawley rat incisor. The levels of lead in blood (Pb-B) were positively correlated with the Pb-T in the crown and root incisors of the Sprague Dawley rats. As an application of the Pb-T crown results in experimental rats, we subsequently analyzed the Pb-T in the crown incisors of Pb-exposed wild rats (Rattus rattus) sampled from residential sites within varying distances from an abandoned lead–zinc mine. The Pb-T accumulation in the crown of incisors of R. rattus rats decreased with increased distance away from the Pb–Zn mine. Furthermore, the Pb-T was strongly correlated (r = 0.85) with the Pb levels in the blood. Laser ablation ICP-MS Pb-T mappings revealed a homogenous distribution of Pb in the incisor with an increased intensity of Pb-T localized in the tip of the incisor crown bearing an enamel surface in both Sprague Dawley and R. rattus rats. These findings suggest that Pb-T in the crown incisor may be reflective of the rat’s environmental habitat, thus a possible indicator of Pb exposure.

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