Returned rock and soil samples from our nearest planetary neighbor have provided the
basis for much of our understanding of the origin and evolution of the Moon. Of particular …

X-ray fluorescence (XRF) spectroscopy is a well-established and commonly used technique
in obtaining diagnostic compositional data on geological samples. Recently, developments …

It was the deep-seated conviction of Paul Gast that the trace element approach was at least
as powerful as experimental petrology to solve the major petrological problems. In this …

Reviewing 92 measurements of lunar sample dielectric constant versus density at
frequencies above 100 kHz, gives the relationK′=(1.93±0.17) p by regression analysis …

Major element, Sr isotope and trace element data for 16 elements are reported for various
weathered zones in three submarine basalt pillows. During the initial stages of alteration, it …

There is widespread textural evidence for microbial activity in the cherts of the Early Archean
Onverwacht Group. Layers with fine carbonaceous laminations resembling fossil microbial …

Shergottites contain cumulus pigeonite and augite, probably without cumulus plagioclase
and crystallized under relatively oxidizing conditions. Shergotty and Zagami may differ in the …

Abundances of the 14 rare-earth elements and 12 other trace elements in Apollo 1 ADS Classic
is now deprecated. It will be completely retired in October 2019. This page will automatically …

The Moon is depleted in water and other volatiles compared to Earth and the bulk solar
composition. Such depletion of volatile elements and the stable isotope fractionations of …

Abstract K, Rb, Ba, Sr, Y, Zr and Nb have been determined in samples of MORB (mid-ocean
ridge basalt) from the mid-Atlantic ridge at 45° N by X-ray fluorescence spectrometry. This …