We discuss a basic iterative method by solving u and p alternatively. Starting from some initial guess u, p, one iteration going from (u, p) to (u, p) is (1) Fix p, solve for u; (2) Fix u, solve for p. When p is fixed, there are two equations for u. We can first solve the momentum equation to get u (the term B p is moved to the right hand side), i.e., Au = f −B p. But unless p is the exact solu...

We present geochronological evidence in the eastern Himalayan syntaxis (Namche Barwa) for high-pressure (HP) granulite-facies metamorphism and explain its importance for understanding both the deep continental subduction of the Indian plate beneath Asia and its subsequent exhumation. The timing of peak and retrograde metamorphism in part constrains these processes but is debated. We present zir...

Introduction Electron linear accelerator (LINAC) can be used for neutron production in Boron Neutron Capture Therapy (BNCT). BNCT is an external radiotherapeutic method for the treatment of some cancers. In this study, Varian 2300 C/D LINAC was simulated as an electron accelerator-based photoneutron source to provide a suitable neutron flux for BNCT. Materials and Methods Photoneutron sources w...

We suggest a new explanation for the presence of crustally derived zircons in the upper-mantle rocks of ophiolitic complexes, as an alternative to subduction-related models. Integrated isotopic (U-Pb, Hf, and O isotopes) and trace-element data for zircons from the Tumut ophiolitic complex (southeast Australia) indicate that these grains are related to granitic magmatism and were introduced into...

The accuracy and validation of geo‐ thermochronological dating hinges on the availability well‐characterised age reference materials. Mesoproterozoic gabbroic anorthosite FC1 from Duluth Complex, Minnesota is a material for zircon U‐Pb suggested apatite fission‐track dating. We evaluate as (U‐Th)/He material, determine its U‐Pb, age. Our results constrain thermal history FC1, showing that fast ...

We present here data about trace elements in human scalp hair samples to test whether they are valuable to reflect environmental exposure and contamination by trace elements. The study compares contents of trace elements in scalp hair from a total of 336 children, aged 11-13 years old, living in various geographical areas of Sicily (southern Italy) characterized by differing environmental condi...

We suggest that electron microprobe techniques may be employed to date Tertiary samples of uraninite (UO2), which can contain very high concentrations of radiogenic Pb after only a few million of years of U and Th decay. Although uraninite is regarded as a rare accessory mineral, it is relatively abundant in leucogranitic rocks such as those found in the Himalayan orogen. We apply the U-Th-tota...