the arghash area is located 45 km to southwest of neyshabour. the subvolcanic rocks in the area consist of biotite hornblende quartz monzodiorite porphyry, hornblende biotite quartz monzodiorite porphyry, hornblende monzonite porphyry, biotite hornblende monzonite porphyry, monzodiorite porphyry and biotite quartz monzodiorite porphyry units. the volcanic rocks consist of hornblende biotite dac...

The concepts of sustainability and waste utilization have received urgent attention in the European construction industries. Material selection plays a vital role manufacturing process sustainable building construction. general objective this study is transformation diabase mud into value-added product. was characterized, different parameters were selected for cement, as well metakaolin mixture...

Abstract Porphyry-type deposits are the world’s main source of copper and molybdenum provide a large proportion gold other metals. However, mechanism by which mineralising fluids extracted from magmas transported upwards into ore-forming environment is not clearly understood. Here we use field, micro-textural geochemical techniques to investigate field relationships samples circa 8 km deep cros...

-Ti, V, Cr, Fe, Co, Ni, Cu, and Zn have been analyzed from Sites 211,213,214,215,and 216 of DSDP Leg 22 of the Clomar Challenger in the northeastern lndian Ocean. According to these trace elements, three different types of source material are broadly defined: the basin floor basalts with a composition sirnilar to tholeiites from mid-oceanic ridges, the basalts and the differentiated rocks from ...

The aim of ARTCADHi, the transdisciplinary research network which designed Porphyry and Steatite software, is to experiment the feasibility of a digital hermeneutics. The main idea is to offer a digital place where scholars could build their interpretation about document corpora and confront it with the viewpoints of other scholars. In order to be easily confronted the viewpoints are modeled th...

Porphyry is a stone material, volcanic in origin, characterised by its development along parallel planes (photo n. ). This characteristic allows for it to be used as a semi-finished product (untreated photo n. ) as well as after “splitting”. Porphyry’s considerable resistance to wear and tear, due to atmospheric agents, is the feature that has consented to its diffusion in street furniture but ...

a high percentage of world copper production is obtained from porphyry copper reserves, these reserves are characterized by: very high tonnage, greater horizontal dimensions than vertical, association with stock like intrusion masses, dispersed minerals in the porphyry mass and in its neighbor rocks, intense sericitization and inplace silicification. the porphyry coppers are concentrated by flo...

Nos travaux s’insèrent dans un projet du réseau ARTCADHi visant à offrir aux chercheurs en Sciences Humaines des assistants à la construction du sens dans des bibliothèques numériques spécialisées. Dans ce cadre, limiter la description des documents à une indexation unique, fixe et effectuée par un tiers, revient à nier leur expertise. Porphyry propose l’instrumentation du travail des chercheur...