scholarly journals Effect of Fractionation Rate on High-Precision Multidynamic TIMS Sr Isotope Analysis and the 84Sr Abundance of the Earth

2020 ◽  
Author(s):  
Yankun Di ◽  
Evgenii Krestianinov ◽  
Yuri Amelin
2020 ◽  
Vol 545 ◽  
pp. 119648 ◽  
Author(s):  
Jing-Jing Fan ◽  
Jie Li ◽  
Qiang Wang ◽  
Le Zhang ◽  
Jing Zhang ◽  
...  

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 35109-35120
Author(s):  
Wenlong Tian ◽  
Wei Yang ◽  
Xiaotao Shao

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.


2015 ◽  
Vol 26 (5) ◽  
pp. 763-774 ◽  
Author(s):  
Jie Lin ◽  
Yongsheng Liu ◽  
Haihong Chen ◽  
Lian Zhou ◽  
Zhaochu Hu ◽  
...  

Author(s):  
S. Tiguntsev

In classical physics, time is considered absolute. It is believed that all processes, regardless of their complexity, do not affect the flow of time The theory of relativity determines that the flow of time for bodies depends both on the speed of movement of bodies and on the magnitude of the gravitational potential. It is believed that time in space orbit passes slower due to the high speed of the spacecraft, and faster due to the lower gravitational potential than on the surface of the Earth. Currently, the dependence of time on the magnitude of the gravitational potential and velocity (relativistic effect) is taken into account in global positioning systems. However, studying the relativistic effect, scientists have made a wrong interpretation of the difference between the clock frequency of an orbiting satellite and the clock frequency on the Earth's surface. All further studies to explain the relativistic effect were carried out according to a similar scenario, that is, only the difference in clock frequencies under conditions of different gravitational potentials was investigated. While conducting theoretical research, I found that the frequency of the signal changes along the way from the satellite to the receiver due to the influence of Earth's gravity. It was found that the readings of two high-precision clocks located at different heights will not differ after any period of time, that is, it is shown that the flow of time does not depend on the gravitational potential. It is proposed to conduct full-scale experiments, during which some high-precision clocks are sent aboard the space station, while others remain in the laboratory on the surface of the earth. It is expected that the readings of the satellite clock will be absolutely identical to the readings of the clock in the Earth laboratory.


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.


2021 ◽  
Author(s):  
Jean Milot ◽  
Janne Blichert-Toft ◽  
Chloé Malod-Dognin ◽  
Philippe Telouk ◽  
Mariano Ayarzagüena Sanz ◽  
...  

2021 ◽  
Author(s):  
Mitsuru Suzuki ◽  
Tsuyoshi Iizuka ◽  
Kota Yamamoto ◽  
Takafumi Hirata

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