Clay minerals are critical components for fired bricks because they provide plasticity,
porosity and adequate strength for desired products. Investigations on clay minerals have …

The role of the standard is critical to the derivation of reliable U–Pb zircon ages by micro-
beam analysis. For maximum reliability, it is critically important that the utilised standard be …

Precise isotope dilution–thermal ionisation mass spectrometry (ID–TIMS) documentation is
given for two new Palaeozoic zircon standards (TEMORA 2 and R33). These data, in …

A‐type granites are a minor, but distinctive, component of the granites of the Lachlan Fold
Belt of southeastern Australia. They are felsic rocks with SiO2 contents ranging from 69.7 to …

This article is excerpted from Marta Nelson, Perry Deess, and Charlotte Allen's longer article
of the same name published by the Vera Institute of Justice in 1999. The report is an …

Atmospheric oxygen concentrations in the Earth's atmosphere rose from negligible levels in
the Archaean Era to about 21% in the present day. This increase is thought to have occurred …

The explosive radiation of animals on Earth during the late Early Cambrian period (∼ 530–
510 Ma) coincides with the deposition of enormous volumes of continentally derived …

Yulong ore-bearing porphyries, along the northwestern extension of the Red River–Ailao
Shan fault system in eastern Tibet, consist of five porphyry deposits, containing a total of …

Clostridium difficile spores must germinate in vivo to become actively growing bacteria in
order to produce the toxins that are necessary for disease. C. difficile spores germinate in …

We report major and trace element composition, Sr–Nd isotopic and seismological data for a
picrite–basalt–rhyolite suite from the northern Tarim uplift (NTU), northwest China. The …