Abstract Two suites of amphibole-rich mafic–ultramafic rocks associated with the voluminous intermediate to felsic in Early Cretaceous Laiyuan intrusive–volcanic complex (North China Craton) are studied here by detailed petrography, mineral and melt inclusion chemistry, thermobarometry demonstrate an situ reaction-replacement origin hornblendites. Moreover, a large set compiled newly obtained g...

Large-scale Mesozoic granitoids are exposed in the Greater Khingan Mountains. Their relationship with Mongolia–Okhotsk and Paleo-Pacific Ocean is still under discussion a matter of debate. In this study, field observations were made total 18 vicinity Heihe–Baishilazi area northern part Mountains sampled for petrological, geochronological, geochemical research. addition, to complement 90 graniti...

The IODP-ICDP Expedition 364 drilling recovered a 829 m core from Hole M0077A, sampling ˜600 of near continuous crystalline basement within the peak ring Chicxulub impact structure. bulk consists pervasively deformed, fractured, and shocked granite. Detailed geochemical investigations 41 granitoid samples, that is, major trace element contents, Sr–Nd isotopic ratios are presented here, providin...

Abstract The Central Asian Orogenic Belt (CAOB) is one of the largest accretionary orogens on Earth and preserves evidence that more than 50% this orogen represents juvenile crustal growth over an extended period some 750 million years from ca. 1000 Ma to 250 Ma. However, mechanism controversial, as implied by a variety proposed models ranging contributions mantle-derived basaltic underplating ...

A diversity of Devonian-Carboniferous volcanic arcs and granitoid intrusions are exposed in the Gurvansaykhan arc terrane southern Mongolia. Several giant porphyry Cu-Au-Mo deposits associated with within these arcs. The Bronze Fox deposit located central part is an example a potentially economic affinity adakite-like (i.e. 428 Mt grading 0.26% to 0.30% Cu for up 2,437 Mlb copper 0.84 Moz gold)...

The Karavansalija Mineralized Center (KMC) with its Au–Cu skarn mineralization associated the Rogozna Mountains magmatic suite in southwestern Serbia belongs to Oligocene Serbo-Macedonian and metallogenic belt (SMM-MB). Samples from intrusive volcanic rocks at KMC show typical arc signatures of subduction-derived magmas through enrichment large-ion lithophile elements (LILE) depletion high–fiel...

Understanding how the Earth’s first continental land masses were generated is important because the processes responsible directly affected the evolution of the planet’s primordial silicate interior, and also its atmosphere and hydrosphere. Archaean continental crust is dominated by rocks of the trondhjemite–tonalite–granodiorite (TTG) suite. These can be divided into (1) a midto late Archaean ...

1-Introduction Damavand volcano was formed by explosive and non-explosive eruptions on the old eroded rock units (Mesozoic and older) of Central Alborz during the Quaternary period and formed two huge cone (Old and Young Damavand). Davidson et al. (2004) determined the time of Old-Damavand activity from 1800 to 800 thousand years ago by measuring Ar/Ar and U-Th/He methods. According to their ...