The composition of “heavy,” or accessory, detrital minerals in sediments and sedimentary
rocks has been a topic of quantitative study for at least the last seventy years, beginning with …

The mineralogy of terrestrial planets evolves as a consequence of a range of physical,
chemical, and biological processes. In pre-stellar molecular clouds, widely dispersed …

Using Geochemical Data: Evaluation, Presentation, Interpretation Page 1 Page 2 Using
Geochemical Data: Evaluation, Presentation, Interpretation Page 3 Other titles in the series An …

A new method for the concomitant separation of the light rare-earth elements (LREEs),
thorium and uranium is described, and applied to the determination of 143Nd 144Nd ratios …

Granitoid gneisses and supracrustal rocks that are 3,800–4,000 Myr old are the oldest
recognized exposures of continental crust. To obtain insight into conditions at the Earth's …

Twenty-three clastic metasediments from the Kongling high-grade terrain of the Yangtze
craton, South China were analyzed for major, trace and rare earth elements and Sm-Nd …

A separation scheme for strontium and light rare earth elements and its application to the
isotopic analysis of strontium and neodymium in silicate rocks are presented. This method …

A review of continental growth models leaves open the possibilities that Earth during the
Hadean Eon (∼ 4.5–4.0 Ga) was characterized by massive early crust or essentially none at …

Abstract Detrital zircons with 207 Pb/206 Pb ages between 3908 and 4270 Ma from the
Narryer Gneiss Complex, Western Australia, are the oldest terrestrial minerals found to date …

A three reservoir model, consisting of the continental crust, depleted mantle and a more
primitive mantle reservoir is used as a basis to account for both the present-day as well as …