Browsing ELibrary by Subject "U/PB GEOCHRONOLOGY"

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DEGREE OF PRESERVATION OF IGNEOUS ZONATION IN ZIRCON AS A SIGNPOST FOR CONCORDANCY IN U/PB GEOCHRONOLOGY

Connelly J.N. (2001)

Zircon crystallized from felsic magmas typically (if not ubiquitously) develop compositional growth zonation that is easily imaged by cathodoluminescence (CL). This zonation represents inherently unstable chemical gradients ...
PREFERENTIAL DISSOLUTION OF 234U AND RADIOGENIC PB FROM α-RECOIL-DAMAGED LATTICE SITES IN ZIRCON: IMPLICATIONS FOR THERMAL HISTORIES AND PB ISOTOPIC FRACTIONATION IN THE NEAR SURFACE ENVIRONMENT

Davis D.W.; Krogh T.E. (2001)

Zircons from two Archean samples, a 2732-Ma trondhjemite and a 2728-Ma dacite, both from the western Superior province, were washed in hydrofluoric acid (HF) at moderate temperatures. Zircon residues and HF wash solutions ...

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