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HOMSIGMAA is a Special Interest Group of the MAA, the Mathematical Association of America. Membership in HOMSIGMAA is open to all MAA members.
Diatom dissolution in surface sediment samples from two regional lake datasets in the Northern Great Plains (NGP; n = 64) and West Greenland (n = 40) is assessed using a morphological approach categor...
This work reports on the relationship between the Pacific Ocean sea surface temperature variability and precipitation over South America in the IPSL coupled model simulations of the present and the 6 ...
The presence of ENSO Events in South America is felt in two ways: a) through its effects on both the atmosphere and ocean systems, and b) through its impacts on natural ecosystems (both marine and ter...
Fundamentally, El Niño Southern Oscillation (ENSO) is a climatic and oceanographic phenomenon, but it has profound effects on terrestrial ecosystems. Although the ecological effects of ENSO are...
As a finer classification of El Niños, ENSOW were defined as years when El Niño (EN) existed on the Peru coast, Southern Oscillation Index SOI (Tahiti minus Darwin pressure) was negative...
The controversies surrounding granites never seem to die. Two hundred years ago a debate raged over whether granites are sedimentary or igneous. With James Hutton effectively putting that one to re...
This very large overview of the role of boron in mineralogy, petrology and geochemistry divides itself with minimal over- lap and clutter into three parts: crystal chemistry°(TM)includin thermochem...
Mr. President, members of the society, and guests: I would be remiss if I did not correct a couple of errors that crept into the luncheon program. First, our good friend Mac Ross came to Toronto fr...
Mr. President, members of the society, and guests: Thanks very much for the kind words, Bruce, and let me just say that it°Os a privilege and an honor to be bestowed wit this year°Os MSA Award, esp...
Mr. President, members of the society, and guests: James Brenan arrived in Troy, New York, in the fall of 1985, young-looking even for a 22-year-old. James was a McGill honors graduate who had qui...
Mr. President, members of the society, and guests: I am greatly honored to be rewarded the Roebling Med by the Mineralogical Society of America and to be cited f this honor by an esteemed former Ph...
A look at the literature of igneous petrology in the years prior to 1967 finds scant mention of the role of volatiles in any igneous rock save evolved granites. Neither would you find a discussion ...
Thank you for selecting me for this award. It is a tre-mendous honor and I appreciate it very much. Needless to say, there are many people to whom I owe my deepest thanks. Firstly, my parents and gran...
Jill received her undergraduate Honors and Masters de-grees from the Australian National University, where she worked with Tony Eggleton and Bruce Chappell. To fol-low up on her studies of weathering ...

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