Publications

We simulate long-period (T>1.0–2.0 s) and broadband (T>0.1 s) ground motions for 39 scenario earthquakes (Mw 6.7–7.2) involving the Hayward, Calaveras, and Rodgers Creek faults. For rupture on the Hayward fault, we consider the effects of creep on coseismic slip using two different approaches, both of which reduce the ground motions, compared with neglecting the influence of creep...

Possibly based on miners from Southeast Germany, ceramic gnomes feature the pointed red hat often worn by these miners.

Before putting on a wool cardigan, make sure you know how the wool was cleaned.

The planet's layers - particularly the earth's crust - provide many of life's essential building blocks.

Real diamonds are a girl's best friend, but synthetic ones opened up a whole new world for granite.

Geologic jargon - though handy for triple-word scores - should be used in moderation.

An enterprising operator finds a solution to a geologic problem that had been in the making for 1.4 million years.

From cow paths to freeways, we seldom appreciate what went into America's highway system.

The article offers information about silicon, a metalloid element which is considered the second-most abundant element in the Earth crust.

The article presents information on sulfur. Sulfur is said to be among the few solid elements found in elemental form in nature and has industrial uses. Changes in the sulfur production process over the years are discussed as well as the mining process developed by German engineer Herman Frasch that involves melting the sulfur underground and pumping it to the surface.

The article features the industrial mineral fluorspar, used in the manufacture of fluorochemicals, aluminum and steel. It defines fluorspar as crude or beneficiated material, mined or milled for the non-metallic mineral fluorite or calcium fluoride. Applications of acid-grade fluorspar in the U.S. are presented, including production of hydrofluoric acid for chemical production of...

The article discusses the characteristics and feature of asbestos. According to the author, asbestos is a generic name for six needle-shaped minerals that possess high tensile strengths, flexibility, and resistance to chemical and thermal degradation. These minerals are actinolite, amosite, anthophyllite, chrysolite, crocilodite and tremolite. Asbestos is used for strengthening concrete...