In the area SW of Arak, intrusives are emplaced into metasediments of early Mesozoic age. The intrusive rocks vary in morphology, structure and mineralogy, and exhibit various degrees of alterations; Rb-Sr geochronological data have been obtained to constrain their timing. There are three different groups of granitic rocks in the area: (a) the Astaneh intrusion, consisting of granite, biotite g...

In the Jebilet massif (Variscan belt, Morocco), two peraluminous granodioritic plutons (the Eastern and Central plutons) are spatially associated with a regional shear zone. The pluton includes Tabouchent, Bramram Bamega intrusions, which represent variably eroded portions of an arcuate apical part pluton. intrusions composed biotite ± cordierite-bearing granodiorite that is crosscut by tourmal...

Abstract Alkaline igneous rocks host many global high-field-strength element (HFSE) and rare-earth (REE) deposits. While HFSEs are commonly assumed to be immobile in hydrothermal systems, transport by late-stage fluids associated with alkaline magmas is reported. However, the magnitude of flux conditions poorly constrained yet essential understanding formation REE-HFSE ores. We examined alterat...

The Borujerd complex of western Iran is composed of intrusions and their surrounding contact aureole, with, pegmatites and quartz veins. Pegmatites differ in mineralogy, origin and age, and two groups can be distinguished. The Older Pegmatites (about 120 Ma age) intruded contact metamorphic rocks from the early magmatic stage, while the Younger pegmatites (52-70 Ma age) formed during the late m...

in the area sw of arak, intrusives are emplaced into metasediments of early mesozoic age. the intrusive rocks vary in morphology, structure and mineralogy, and exhibit various degrees of alterations; rb-sr geochronological data have been obtained to constrain their timing. there are three different groups of granitic rocks in the area: (a) the astaneh intrusion, consisting of granite, biotite g...

Polyethylenimine (PEI) has been demonstrated as an efficient DNA delivery vehicle both in vitro and vivo. There is a consensus that PEI-DNA complexes enter the cells by endocytosis escape from endosomes so-called “proton sponge” effect. However, little known on how where polyplexes are de-complexed for transcription replication to occur inside cell nucleus. To better understand this issue, we (...