This paper presents the new geochemical isotopes Sr and Nd, and the mineralization data for the south Neyshabour volcanic rocks located in NE Iran. Based on the chemical classifications, the studied rocks are basaltic trachy andesite, trachy andesite, trachyte, and trachy dacite in composition. All the analyzed volcanic rocks display enrichment in light rare earth elements (LREE) relative to th...

The Jiaodong Peninsula is the most important gold mineralization area in China, and formation of deposits closely related to granitoids. isotopic ages Early Cretaceous granodiorites northwestern are concentrated range 111~123 Ma, coeval with area. However, studies on geotectonic settings granodiorites, especially their petrogenesis relationship Peninsula, scarce. Based field petrographic observ...

Abstract The Payenia region of Argentina (34.5–38°S) is a large Pliocene‐Quaternary volcanic province basaltic compositions in the Andean Cordillera foothills representing northernmost extent back‐arc volcanism Southern Volcanic Zone (SVZ). Although chemical diversity basalts has been characterized previously, processes and sources responsible for such variation remain controversial. Here, we r...

Farmed fish escape and enter the environment with subsequent effects on wild populations. Reducing escapes requires the ability to trace individuals back to the point of escape, so that escape causes can be identified and technical standards improved. Here, we tested if stable isotope otolith fingerprint marks delivered during routine vaccination could be an accurate, feasible and cost effectiv...

Background: Sr isotopes are located in the mass region $A\ensuremath{\approx}100$, where a very quick onset of nuclear deformation exists; other notable examples this area Yb, Zr, and Nb nuclei. The presence proton subshell closure $Z=40$ allows existence particle-hole excitations that produce low-lying intruder bands.Purpose: goal work is study structure even-even $^{92\text{--}102}\mathrm{Sr}...

Introduction: The isotopic compositions of moderately volatile elements like Li, K, Rb may provide key information to further enhance our understanding of the early history of our Solar System (e.g., [1,2]). Here we discuss technical aspects of our efforts to precisely determine the Rb isotopic composition of meteorites and present a hint for a possible nucleosynthetic effect suggested by corre...