Mantle plumes originate at depths near the core− mantle boundary (~ 2,800 km). As such,
they provide invaluable information about the composition of the deep mantle and insight …

The advances which have taken place during the last four decades in the instrumentation
and applications of thermal ionisation mass spectrometry (TIMS) particularly of relevance to …

The Late Palaeozoic volcanic rocks, mainly consisting of basalt, trachyte, trachy-andesite,
andesite and rhyolite, widely distributed in the southwestern Tianshan Mountains, have …

This paper contains the results of an extensive isotopic study of United States Geological
Survey GSD‐1G and MPI‐DING reference glasses. Thirteen different laboratories were …

Reports of large Ca isotope fractionations between trees and soils prompted this study of a
Boreal forest ecosystem near La Ronge, Saskatchewan, to improve understanding of this …

Taking the example of Nd, we present a method based on a 4-mass-step acquisition
scheme to measure all isotope ratios dynamically by thermal ionization mass spectrometry …

We report two newly identified Ordovician ophiolite belts in west Junggar, NW China: Tajin–
Tarbahatai–Kujibai–Honguleleng (TTKH) and Tangbale–Baijiantan–Baikouquan (TBB) …

Geological records of the earliest history of the Earth are rare; rocks older than 3700Ma
comprise only a few percent of continental surfaces. Evidence is mounting, however, that …

We report novel techniques allowing the measurement of Nd-isotope ratios with
unprecedented accuracy and precision by multi-collector inductively coupled plasma mass …

High-precision and high-accuracy measurement of the natural mass-independent variations
of 84 Sr/86 Sr using thermal ionization mass spectrometry (TIMS) is crucial for …