Re os dating arsenopyrite

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The Re-Os isochron plots the ratio of radiogenic Rhenium and Osmium were strongly refractory and siderophile during the initial accretion of the Earth which caused both elements to preferentially enter the Earth's core.

Thus the two elements should be depleted in the silicate Earth yet the The reason for this apparent contradiction is owed to the change in behavior between Re and Os in partial melt events.

Development of Re-Os geochronology for crustal matrices has been ongoing since 1998 in the laboratory.

This work has resulted in major advancements in the direct isotopic dating of crustal sulfide minerals, petroleum source-rocks, and natural hydrocarbons, using Re-Os isotopes.

In this regard, the Re–Os system to study the geochemical evolution of mantle rocks and in defining the chronology of mantle differentiation is extremely helpful.

peridotite xenoliths which are thought to sample the upper mantle sometimes contain supra-chondritic Os-isotopic ratios.

The Mount Pleasant granite-related polymetallic deposit, located on the southwestern margin of the Late Devonian Mount Pleasant Caldera Complex in southwestern New Brunswick, contains a significant resource of tin, tungsten, molybdenum, zinc, indium, and bismuth.

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