The Keweenaw Peninsula native copper district of Michigan, USA is the largest concentration of native copper in the world. The copper isotopic composition of native copper was measured from stratabound and vein deposits, hosted by multiple rift-filling basalt-dominated stratigraphic horizons over 110 km of strike length. The δ65Cu of the native copper has an overall mean of +0.28‰ and a range o...

Abstract. Mineral resource exploration and mining is an essential part of today's high-tech industry. Elements such as rare-earth elements (REEs) copper are, therefore, in high demand. Modern techniques from multiple platforms (e.g., spaceborne airborne), to detect map the spectral characteristics materials interest, require libraries reference. They include field laboratory information combina...

The influence of copper and zinc supplements on milk production performances and health indicators was tested in a 20week feeding trial, with 40 Holstein-Friesian lactating cows, divided in four groups (copper, zinc, copper-zinc and control). Correlations of the Cu and Zn plasma values with some animal performance criteria of health (body condition score and somatic cell counts) and production ...

Copper and selenium play an important role in maintaining a healthy cattle herd. Both of these minerals work with enzymes to reduce peroxides that could potential cause tissue damage. Random samples of blood, serum, and liver were taken from various cattle herds across Virginia. Serum was used to determine the copper concentrations, while blood and liver samples were used to determine selenium ...

Introduction Minerals and trace elements such as zinc and copper have significant influence on development and growth of the fetus and newborn. The purpose of this study was to determine the relationship between low birth weight and maternal and neonatal zinc, copper levels. Materials and Methods This case – control study was done from September 2006 to Sep 2007 consisted of 65 infants with bir...

Weathering of metal-sulfide minerals produces suites of variably soluble efflorescent sulfate salts at a number of localities in the eastern United States. The salts, which are present on mine wastes, tailings piles, and outcrops, include minerals that incorporate heavy metals in solid solution, primarily the highly soluble members of the melanterite, rozenite, epsomite, halotrichite, and copia...

this paper presents the new geochemical isotopes sr and nd, and the mineralization data for the south neyshabour volcanic rocks located in ne iran. based on the chemical classifications, the studied rocks are basaltic trachy andesite, trachy andesite, trachyte, and trachy dacite in composition. all the analyzed volcanic rocks display enrichment in light rare earth elements (lree) relative to th...

Dietary guidance to the public stresses foods or food groups as specific sources of minerals such as calcium in dairy products, iron in meats and legumes, and potassium in oranges and bananas. Dietary guidance also identifies foods that are low in some minerals (such as sodium, potassium, calcium, cooper, and iron) for patients with specific disease conditions. However, the levels of minerals a...

Minerals, though needed in small quantities, are essential to metabolic processes, and deficiencies can seriously threaten health, reproduction and survival. Despite this, few studies have measured mineral composition of wild primate foods and fewer have quantified mineral intake. Here we measured the concentration of nine minerals in 75 foods of diademed sifakas (Propithecus diadema; five grou...