Abstract The Tianshan and Junggar orogenic collage occupies the southwestern part of the
Central Asian Orogenic Belt and was assembled by collision/accretion of several continental …

The K–Ar and Ar–Ar dating techniques occasionally produce anomalously old ages
attributed to excess argon, and such data is often rejected as not offering any insight into the …

The Western Tianshan high-pressure/low-temperature metamorphic belt in northwestern
China formed within a Paleozoic accretionary wedge on the south side of the Yili–Central …

High-pressure (HP)/low-temperature (LT) metamorphic rocks, such as eclogite and
blueschist, are generally regarded as an indicator of subduction-zone metamorphism …

Zircons from eclogite-facies rocks of the Sesia–Lanzo Zone have been investigated by
cathodoluminescence and dated by ion microprobe (SHRIMP). Most of the zircons show a …

Preliminary 40Ar/39Ar thermochronologic results from two transects across the Altyn Tagh
(AT) range allow new interpretations for the genesis of the range and provide constraints for …

The Eocene volcano-sedimentary units in the southern part of the Eastern Pontides (NE
Turkey) are confined within a narrow zone of east–west trending, semi-isolated basins in …

Opening of the Tyrrhenian Sea is the consequence of the eastward retreat of the Calabria–
Apennines subduction from the Oligocene to the Present. Structural and petrological studies …

In the Neuquén Basin of Argentina,'beef'(bedding-parallel veins of fibrous calcite) is
widespread within Late Jurassic black mudstones. A typical vein consists of two grey inner …

The problem of excess 40 Ar (Ar E) affecting 40 Ar/39 Ar dates, particularly in biotite, is a
long-standing issue in Himalayan geology. The development of in situ Rb-Sr dating presents …