The Lubei Ni–Cu–Co deposit situated in western segment of the Huangshan-Jing’erquan mafic–ultramafic rock belt eastern Tianshan Central Asian Orogenic Belt (CAOB). estimated reserve is approximately 9.11 million tons ore resources with average grades 0.82 wt% Ni, 0.52 Cu, and 0.03 Co. intrusion mainly composed gabbro (phase I), peridotite II), pyroxene III), olivine pyroxenite IV), diorite V), ...

Rationale Complete decomposition of silicate rock matrices is crucial in determining their isotopic compositions, but acid dissolution a high-pressure steel-jacketed bomb, which has been the only powerful, effective technique thus far, time-consuming and expensive. Rock using ammonium bifluoride (ABF), as described here, viable alternative. Methods Geological reference materials (GRMs) were dig...

Recently, some diffusion-based filtering methods have been developed such as anisotropic diffusion (AD) or nonlinear diffusion (ND), which can reduce the speckle noise, at the same time, preserve and enhance the edge/borders in ultrasound image. However, because of the granular pattern of speckle, it is quite difficult to reduce speckle exactly through diffusion-based methods only. In this pape...

In this article, for the first time, a comparison is made of magmatic events that occurred in northern and southern framing eastern flank Mongol-Okhotsk orogenic belt. It established these simultaneously. The igneous rocks accompanying are identical their material characteristics. And geochemical characteristics reflect geodynamic processes took place frame Mongolian-Okhotsk belt at end Mesozoi...

Excitation functions for the Y(p,x)Zr, Y(p,x)Y, Y(p,x)Sr and Y(p,x)Rb reactions were measured by a stacked foil activation technique in the energy range 15-80 MeV. The production for the long lived products like Zr, and Y are significantly larger than that of Mo+p, Nb+p and Zr+p processes. The productions of the medical isotopes, Sr and Sr are also effective by Y+p process using 80 MeV beam. Th...

Clastic sediments in the Bengal Fan contain a Neogene history of erosion and weathering of the Himalaya. We present data on clay mineralogy, major element, stable and radiogenic isotope abundances from Lower Miocene-Pleistocene sediments from ODP Leg 116. Nd and Sr isotope data show that the Himalayan provenance for the eroded material has varied little since > 17 Ma. However, from 7 to 1 Ma sm...

Background (Ba,Sr)SO4 solid-solutions range among the most important scaling minerals, not only in geothermal energy production, but generally in applications involving hydrothermal brines, e.g. including petroleum production [e.g. (Todd and Yuan 1990, 1992; Kühn et al. 1997)]. Besides the general difficulties related to scale formation, like blockage of pipes, related decrease of well producti...