Hanza region is located in the southern part of Urumieh–Dokhtar Metallogenic belt in southeastern Iran. This region includes six known porphyry copper deposits and it is considered as an ore- bearing region from geochemical point of view. The aim of this research is to examine effective processing techniques in the analysis of stream sediment geochemical datasets and ASTER satellite images. The...

Base metal mineralization at the Baal Gammon and Isabel deposits of Herberton Mineral Field (HMF) is hosted in metamorphosed greywacke beds Hodgkinson Formation, which were intruded by granite, porphyry dykes overlain volcanic rocks Kennedy Igneous Association during Carboniferous Permian. The tin deposit a silicified, chlorite-altered, quartz-feldspar (UNA Porphyry). polymetallic veins hosting...

Abstract: The Urumieh-Dokhtar Magmatic Belt (UDMB) is the host of many Iranian Cu porphyry deposits. Southern part of this belt, in the range of geological Jebal barez, has been less investigated because of the mountainous and rough topography and also some security confrontation. Porphyry deposits are associated with hydrothermal alteration zones can be mapped using remote sensing data such as...

While gold partitioning into hydrothermal fluids responsible for the formation of porphyry and epithermal deposits is currently well understood, its behavior during differentiation metal-rich silicate melts still subject an intense scientific debate. Typically, scavenged sulfides crustal fractionation sulfur-rich mafic to intermediate magmas development native forms alloys this important precio...

Abstract The Iberian Pyrite Belt is a world-class metallogenic district developed at the Devonian-Carboniferous boundary Variscides that currently has seven active mines: Neves Corvo (Cu-Zn-Sn) and Aljustrel (Cu-Zn) in Portugal, Riotinto (Cu), Las Cruces Aguas Teñidas (Cu-Zn-Pb), Sotiel-Coronada La Magdalena (Cu-Zn-Pb) Spain. massive sulfide ores are usually hosted lower sections of volcano-sed...

The mineralization potential of arc magmas depends, among other factors, on the timing sulfide melt saturation relative to magma differentiation and exsolution a magmatic fluid phase. In fossil mineralized or barren systems, understanding evolution metals along path is often hindered by late processes hydrothermal alteration. To better understand process metal “caught in act” crustal reservoirs...

PAGE Introduction 209 Construction of the spraying tower ... ... ... ... ... ... 210 Adjustment of the atomiser ... ... ... ... ... ... ... 211 Spraying procedure ... ... ... ... ... ... ... ... ... 211 Determination of weight of deposit ... ... ... ... ... ... 212 Replication and distribution of deposits ... ... ... ... ... ... 213 Factors governing the weight of deposit ... ... ... ... ... .....

A radiocarbon date of 19 100 ±100 yr BP (SUA 2856) dates the maximum extent ofglacier ice at Lake Beatrice in the upper Dante IJ ,,,,,,I,,>r 1'1 •• ... nrlrrh", Late Wisconsin in western Tasmania. Study ofthe Dante Glacier outwash fan deposits shows that rna'l:'Or'\'vlT(~'r"hr',e'; a lDalaec~soJ and an older outwash formation, and are interstratified with fluvial silts detritus deposited of the...