Depigmented haloes sometimes appear around melanocytic tumors or non-melanocytic tumors, but coexistence of warts and depigmented haloes is extremely rare. We report here an unusual case of warts accompanied by depigmented haloes and subsequently-triggered generalized vitiligo. A 55-year-old Japanese man presented with a 3-year history of brown nodules on the back, upper eyelid and dorsum of th...

The high-grade uranium deposits in the Xiemisitan area, northwestern China, are genetically associated with the faulting of felsic volcanic or sub-volcanic rocks. Ferric iron alteration indicates that oxidizing hydrothermal fluids percolated through the rocks. In this study, we measured the gamma-ray intensities of rocks in the Xiemisitan area and we propose a hybrid method for the mapping of f...

We investigate the subhalo populations of dark matter haloes in the concordance ΛCDM cosmology. We use a large cosmological simulation and a variety of high resolution resimulations of individual cluster and galaxy haloes to study the systematics of subhalo populations over ranges of 1000 in halo mass and 1000 in the ratio of subhalo to parent halo mass. The subhalo populations of different hal...

Cold dark matter haloes are populated by caustics, which are yet to be resolved in N-body simulations or observed in the Universe. Secondary infall model provides a paradigm for the study of caustics in typical haloes assuming that they have had no major mergers and have grown only by smooth accretion. This is a particular characteristic of the smallest dark matter haloes of about 10−5 M⊙, whic...

alteration of ophiolitic ultramafic rocks, formation of listwaenite and associated mineralization are interesting phenomena of metallogeny of khoy ophiolite. it seems that the hydrothermal circulations responsible for mercury mineralization were derived from geothermal systems caused by intermediate to acidic magmatism in neogene-pleistocene time. reactivation of brecciated serpentinite with hy...

Much evidence suggests that we live in a flat Cold Dark Matter universe with a cosmological constant. Accurate analytic formulae are now available for many properties of the dark halo population in such a Universe. Assuming current “concordance” values for the cosmological parameters, we plot halo abundance against redshift as a function of halo mass, of halo temperature, of the fraction of cos...

Dark matter haloes in ΛCDM simulations grow by mergers with other haloes as well as accretion of “diffuse” non-halo material. We quantify the mass growth rates via these two processes, Ṁmer and Ṁdif , and their respective dependence on the local halo environment using the ∼ 500, 000 haloes of mass ∼ 10 to 10M in the Millennium simulation. Adopting a local mass density parameter as a measure of ...

The northwestern part of the Kerman Cenozoic magmatic arc (KCMA) contains many areas with porphyry copper mineralization. In this research, we used the advanced space-borne thermal emission and reflection radiometer (ASTER) and Enhanced Thematic Mapper plus (ETM+) images of this region to map the distribution of hydrothermally altered rocks, based on their mineral assemblages. The spectral meas...