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larvikite (lar'-vik-ite). An alkalic syenite, grading to monzonite, composed of phenocrysts of two feldspars (esp. oligoclase and alkali feldspar), often intimately intergrown, which comprise up to 90% of the rock, with diopsidic augite and titanian augite as the chief mafic minerals, and accessory apatite (generally abundant), ilmenite, and titaniferous magnetite, and less commonly olivine, orthopyroxene, biotite, and quartz or feldspathoids (less than 10 percent by volume). Its name, given by Brögger in 1890, is derived from Larvik, Norway.

hardness points

hardness points . Small, pointed pieces of minerals of different hardness, affixed to handles and used for testing the hardness of another mineral by ascertaining which point will scratch it. Minerals of hardness 6 to 10 on the Mohs scale are usually used as the points for testing gemstones. Because of the potential for damage, this test is not routinely used on faceted gemstones.

InTeGrate 2018 Spring Webinar Series Begins

Free and open to the public, the InTeGrate 2018 Spring Webinar Series will incorporate InTeGrate pedagogies into teaching practices, provide resources available for adoption, and create a forum for participants to learn and share teaching strategies. The series begins Monday, January 22 with the webinar Designing Activities for Effective Online Teaching.

An insight into life as a University Teaching Associate in numbers

In September 2017 I started my second short-term contract as a Teaching Associate at the University of Sheffield. I started my first teaching contract in July 2016, following a short and low-paid research contract after my PhD. The past year and a bit have been a steep learning curve, life as a PhD student really didn't do much to prepare for the teaching (and admin) side of academia. So at the start of this term I decided to track my working day to see what I spent my time on and how long I actually spent working!

Theis type curve

Theis type curve . A log-log plot of the well function, W(u), versus the argument u, in which u describes for a confined aquifer the theoretical relationships among observation-well distance, time since pumping began, and the aquifer storativity coefficient and transmissivity . It is used to determine aquifer properties, drawdown, or pumping rate, based on the results of an aquifer test (Todd, 1959, p.90-94). Cf: Theis equation; Thiem equation .

The AWG Undergraduate Excellence in Paleontology Award

The Association for Women Geoscientists is pleased to announce the 2017 AWG Undergraduate Paleontology Award. The award, which consists of a $1000 cash prize and membership in the Paleontological Society and AWG for the tenure of the
awardee’s schooling, will be presented to two outstanding female undergraduate students pursuing a career in paleontology. This award was made possible by the generous donations of Drs. David Watkins and Mary Anne Holmes and the
Paleontological Society.