scholarly journals Problems in obtaining precise and accurate Sr isotope analysis from geological materials using laser ablation MC-ICPMS

2007 ◽  
Vol 390 (2) ◽  
pp. 465-476 ◽  
Author(s):  
P. Z. Vroon ◽  
B. van der Wagt ◽  
J. M. Koornneef ◽  
G. R. Davies
2016 ◽  
Vol 31 (1) ◽  
pp. 259-269 ◽  
Author(s):  
Wolfgang Müller ◽  
Robert Anczkiewicz

Accurate in situ Sr isotope analysis of (bio)apatite via ‘robust-plasma’ laser-ablation MC-ICPMS with negligible 40Ca31P16O and reliable 87Rb interference correction.


Author(s):  
Н.Г. Свиркина ◽  
С.А. Володин

В статье представлены предварительные результаты комплексного биоархеологического исследования серии трупосожжений I в. до н. э. – II в. н. э., обнаруженных в склепах Восточного некрополя Фанагории. Результаты определения основных характеристик сожженных останков сравниваются с данными о кремациях из некрополей Западной и Южной Европы, что позволило наметить основные черты общеримской традиции сожжения покойных, которой придерживалось и городское население столицы Азиатского Боспора. Помимо этого был проведен химический анализ состава «припеканий» на костях изучаемой серии, и оказалось, что данные аномалии на останках являются следами контакта с керамическими изделиями во время сожжения. В ходе анализа изотопов стронция было сделано предположение о низкой мобильности изученных индивидов. The paper contains preliminary results of the comprehensive bioarchaeological study of the cremations dating back to 1st century BC – 2nd century AD which were discovered in the burial vaults of Eastern Necropolis in Phanagoria. Key characteristics of the cremated remains are compared with the cremation data from necropolises of Western and Southern Europe. This analysis helped identify main characteristics of the general Roman tradition of cremating the deceased practiced by the urban population of the Asian Bosporus capital. Besides, chemical analysis of the composition of the ‘burns’ on the bones of the studied series was performed. This analysis demonstrated that such anomalies on the remains represent traces of the contact with ceramic items during cremation. The Sr isotope analysis suggested low mobility of the individuals examined.


2020 ◽  
Author(s):  
E. Troy Rasbury ◽  
Theodore M. Present ◽  
Paul Northrup ◽  
Ryan V. Tappero ◽  
Antonio Lanzirotti ◽  
...  

Abstract. Laser ablation U-Pb analyses of carbonate (LAcarb) samples has greatly expanded the potential for U-Pb dating to a variety of carbonate producing settings. Carbonates that were previously considered impossible to date using isotope dilution methods may preserve domains that are favorably interrogated when using spatially resolved laser ablation geochronology techniques. Work is ongoing to identify reference materials and to consider best practices for LAcarb. In this study we apply standard and emerging characterization toolsets on three natural samples with the dual goal of enhancing the study of carbonates and in establishing a new set of precisely characterized natural standards for LAcarb studies. We start with the existing carbonate reference material WC-1 from the Permian Reef Complex of Texas, building on the published description to offer a deeper look at U and fluids. We consider a tufa sample from the Miocene Barstow Formation of the Mojave Block, California, as a possible secondary calcite reference material due to its well-behaved U/Pb systematics. There are currently no natural dolomite standards. We present an unusual dolomite sample with very well-behaved U-Pb systematics from the Miocene of the Turkana Basin of Kenya as a possible dolomite reference material for LAcarb dating. In addition to using XRF mapping and spectroscopy to better understand U in these natural samples, we have analyzed multiple aliquots of each of them for 87Sr/86Sr. The Sr isotope compositions are reasonably homogeneous in all three samples, so that these could be used as Sr isotope standards as well. This combination could streamline split stream analyses of 87Sr/86Sr and U/Pb geochronology.


2014 ◽  
Vol 416 ◽  
pp. 142-149 ◽  
Author(s):  
P.J. Le Roux ◽  
J.A. Lee-Thorp ◽  
S.R. Copeland ◽  
M. Sponheimer ◽  
D.J. de Ruiter

2011 ◽  
Vol 26 (2) ◽  
pp. 341-351 ◽  
Author(s):  
Zhaoping Yang ◽  
Brian J. Fryer ◽  
Henry P. Longerich ◽  
Joel E. Gagnon ◽  
Iain M. Samson

2009 ◽  
Vol 261 (3-4) ◽  
pp. 244-260 ◽  
Author(s):  
A.I.S. Kemp ◽  
G.L. Foster ◽  
A. Scherstén ◽  
M.J. Whitehouse ◽  
J. Darling ◽  
...  

2018 ◽  
Vol 33 (1) ◽  
pp. 68-83 ◽  
Author(s):  
Xin-Yuan Zheng ◽  
Brian L. Beard ◽  
Clark M. Johnson

The nature of matrix effects during in situ Fe isotope analysis using fs- and ns-laser ablation (LA) was characterized and compared.


Sign in / Sign up

Export Citation Format

Share Document