Petrogenetic interpretation of Cu hosted Eocene volcanic rocks in southwest of Ardestan, East of Isfahan
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 2
Abstract
In the present study, study areas the part of Urumieh- Dokhtar volcanic belt. The main of rocks in this area are Eocene volcanic rocks consist of lava and pyroclastic rocks, with andesite and andesite basalt composition. These rocks are the most important cu-hosting ones in thisareaand have aporphyritic texture, cavity, flow, cellular foam, glomeroporphyritic, poikilitic and spherulitic textures, and in handy specimens are generally fine grained to fine to medium grained. From mineralogical perspective, these rocks include pyroxene, plagioclase, biotite, quartz and amphibole as well as secondary minerals such as epidote, chlorite, calcite and metal ores. These rocks are not immune from alteration and in some parts of very high intensity of alteration due to hydrothermal conditions being seen. Important of alteration kinds in this area are 2 groups consist of chlorite- epidote- calcite and silicate- sericite alteration that focused at andesitic lava and generation by hydrothermal solutions. On the base of minor and trace element geochemical data on diagrams, observations of minerals, rocks and geochemistry indicate that primary magma of volcanic rocks in the area was sub-alkaline, calc-alkaline series. Also the diagrams of the tectonic characteristics show that these rocks were generated in an active continental margin volcanic arc and it is thought that are affected by the subduction. Diagrams of trace elements in volcanic rocks normalized with chondrite and primitive mantle show that enriched of the light rare earths related to heavy rare earth element probably indicates a derivation from the metasomatic mantle.
Authors and Affiliations
Sayyed Hossein Roshan, Ali Khan Nasr Isfahani
Keywords
Related Articles
- EP ID EP38249
- DOI -
- Views 147
- Downloads 0
Water productivity and sensitivity tolerance stress indices in five soybean cultivars (Glycine max L.) at different levels of water deficit
In order to measure the water deficit stress effects on seed yield and water productivity of soybean cultivars, a two field experiments wad conducted out via split plot in a randomized complete block design with four re...
Utilization of the West African manatee(Trichechus senegalensis) in the traditional medicine in Niger
River Niger constitutes the core backbone which supports the livelihoods of the local communities living along its banks. This study focuses on the utilization of the West African manatee (Trichechus senegalensis) in the...
Determination and analysis of informant consensus factor of medicinal plant species used as remedy in Northern Pakistan
In current quantitative ethno botanical research survey, ethno botanical knowledge of 62 plants species from 38 families was studied through semi-structured interviews and well-organized questionnaire from March 2012 to...
Presence of predatory nematode (Nematoda, Mononchidae) in a Wilson’s storm petrel nest, Oceanites oceanicus (Ave, Procellariiformes, Hydrobatidae), in Southern Shetland Islands, Antarctica
The discovery of a mononchid nematode in the Argentinean Antarctic turns out to be a first citation of this predatory nematode in a Wilson’s storm petrel nest. In that nest there were dead young petrels that we deduced f...
The investigation and study of faune of the genus Chersotis Boisduval, 1840 in Iran
In this paper, the distribution of the Chersotis species from Iran are listed. Original data and published data by the author have been used as well.