Apatite (U–Th–Sm)/He (AHe) thermochronology is increasingly used for reconstructing
geodynamic processes of the upper crust and the surface. Results of AHe …

New low‐temperature thermochronological data from 80 samples in eastern Kyrgyzstan are
combined with previously published data from 61 samples to constrain exhumation in a …

This review article summarizes the state of the art of cosmogenic 3 He (3 He c), with a focus
on the most efficient methods and strategies for measuring this cosmogenic noble gas in the …

U–Th rich mineral inclusions in apatite are often held responsible for erroneously old (U–
Th)/He ages, because they produce “parentless” He. Three aspects associated with this …

The Diego Hernandez Formation (DHF; 600–ca. 180 ka) represents the products of the most
recent complete cycle of phonolitic explosive volcanism on Tenerife (Canary Islands, Spain) …

An uncommon assemblage of primary and secondary accessory REE minerals was
identified in a Permian A-type granite clast in polymict conglomerates intercalated in the …

We present a new approach to dating intermediate to mafic volcanic rocks using magnetite
(U–Th)/He geochronology. Magnetite is common in volcanic rocks that typically do not …

Accurate determination of cosmogenic 3He concentrations in olivine and pyroxene
phenocrysts requires knowledge of the amount of magmatic 3He also in the sample. The …

Rare earth elements are commonly assumed to substitute only for Ca in clinopyroxene
because of the similarity of ionic radii for REE 3+ and Ca 2+ in eightfold coordination. The …

The chevkinite-group minerals (CGM) are dominantly monoclinic REE-Ti-Fe sorosilicates
[(REE, Ca) 4Fe2+ (Fe2+, Fe3+, Ti) 2Ti2 (Si2O7) 2O8)], with REE2O3 contents up to~ 50 …