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Letter from the Chair UA Geosciences Newsletter, Volume 4, Number 1 (Fall 1998) Item Type Newsletter Authors University of Arizona Department of Geosciences Publisher Department of Geosciences, University of Arizona (Tucson, AZ) Rights Copyright © Arizona Board of Regents. The University of Arizona. Download date 29/09/2021 07:00:49 Link to Item http://hdl.handle.net/10150/295172 THE UNIVERSITY OF ARIZONA® The Department of Geosciences Fall 1998 Volume 4, Number l Letter from the Chair JOAQUIN RUIZ s you'll see from the contents of this We profile Newsletter, our efforts at integrating two of our former cutting edge teaching and researchstudents, Tina continue. We highlight the Center of Mineral Wells (BS '94) and Resources and the Nyanza Project as two Joydeep Haldar large -scale operations that effectively integrate (MS'97) who these activities. The Center for Mineral visited us as part of Resources is a multi -disciplinary entity, co- their company's directed by Mark Barton and Eric Force recruiting teams (USGS), with the goal of furthering our this fall. We had an understanding of the processes that form excellent recruiting mineral deposits. The Center is a Dept. of season with Geosciences -USGS cooperative effort and Amoco, Arco, BP, makes for a very dynamic group. Strong Chevron, EXXON connections with the Center to the mineral and Mobil and Peter Coney and Joaquin Ruiz solemnly prepare for Commencement. industry are beneficial to the educational recruiters were unanimous in praising the high INSIDE mission of the organization. caliber of our students. The Department is deeply The Nyanza Project, directed by Andy appreciative of the generous financial support Colloquium Series Schedule "2 Cohen, is an NSF -funded multi -disciplinary provided by these companies. operation involving students in the study of As you know, the only thing constant in News Around the Department 3 East African lakes. The Project grew out of our Department is change and this year has been combined efforts to maintain the viability of no exception. We welcomed 24 extraordinary Center for Mineral Resources 4 East African lakes and takes students to Lake graduate students who will undoubtedly further Paleoclimate, Magmas and Tanganyika where limnological, biological, enhance the reputation of our graduate ecological, and other studies are performed program. We are in the final stages of a search Hydrothermal Systems 6 for a geomorphologist and will probably begin by a host of scientists. Alumni News 8 Jay Quade describeshisrecent another search in the spring for a colleague paleoclimatology research in the Atacama in a currently unspecified field. Randy '98 Field Camp 10 Desert with Julio Betancourt (MS '83, PhD '90) Richardson has been appointed Assistant Vice Peter Coney Retires .. 11 and students Jason Rech and Claudio Latorre President for Undergraduate Affairs, and (MS '96). although this is great for Randy we miss our Nyanza Project: Phase One 12 Of course, we haven't forgotten our more daily interactions with him. Unwelcome classical teaching efforts, such as Field Camp, farewells also come with change, such as the Climate Change in the Atacama which is now mostly taught in Utah. Pete retirement of Peter Coney. Students will miss Desert 13 DeCelles, the new Director of Field Camp, his classes and we will miss his insight. describes some of the activities that went on this That's all for now. As we approach the Nuclear Explosion Epicenter 14 holidays,I take this opportunity to wish you summer. We are strongly committed to our Field Spring '98 Degrees 15 Camp and Clem Chase, Sue Beck, Pete DeCelles all a happy holiday season and a prosperous and Judy Parrish have done a phenomenal job New Year. Please keep in touch -we're always Earth Week at Mineral Museum 15 in keeping it a vibrant course. happy to hear from all of you. UA Geosciences Río Mayo Plants NEWSLETTER Fall 1998 Published Gen "During the fall the air moves in sporadic Rio MAYO PLANTS gusts, which seem to have no other direction The Tropical De4icJuc)us Forest & Faxvircz* c} :orlJawc1; Geosciences Advisory Board Artidttlad4414 than that of the colored autumnal leaves they PAWL I. MARTIN, LMT.pYRTMAK, N.tXA rlselrY:rc, MfiL:6NR7N# T/tOktüs & VAN 60'00611, k ROSSO. Steven R. May (Chair), EXXON disturb and carry downward from the trees. Steven R. Bohlen, USGS They suddenly startle the great infinity of Hugo T. Dummett, BHP Minerals forest silence into a local multitudinous rustle of descending leaves, of flapping paper -like Frederick T. Graybeal, ASARCO copal bark, of rubbing branches, only to drop Kerry F. Inman, BP as suddenly back again into Charles F. Kluth, Chevron a pervasive silence." Robert W. Krantz, ARCO Alaska -Howard Scott Gentry, Río Mayo Plants J. David Lowell, Consultant David K. Rea, University of Michigan Gentry's Rio Mayo Plants: The Tropical Deciduous Forest and Environs of Northwest David Stephenson, D/H Stephenson, Inc. Mexico. 1998. Revised and edited by Paul S. Martin, David Yetman, Mark Fishbein, Phil Jenkins, Thomas William H. Wilkinson, Phelps -Dodge R. Van Deveder and Rebecca K. Wilson. University of Arizona Press, Tucson; 558 pages ($75.00). Draining the barranca country of This expanded, revised publication The UA Geosciences Newsletter is southwestern Sonora and western Chihuahua, represents the field work of over 100 published twice a year by the the Rio Mayo originates in the fir forests of individuals - faculty, students and friends of Department of Geosciences the Sierra Madre Occidental at 9000 feet and PO Box 210077 this and other universities of the region, The University of Arizona plunges over an 800 -foot waterfall at including the Universidad de Sonora. Included Tucson, AZ 85721 -0077 Basaseachic to find its way to the mangrove are some 100 species of tropical trees, many tidal flats of the Gulf of California. In the 1930s, profiledinGentry's enchanting and Boleyn E. Baylor, editor naturalist Howard Scott Gentry began to explore scientifically accurate prose. For those who 520- 621 -6004 the Rio Mayo region -lands still inhabited by have a taste for exploring the tropics in wild bbaylor @geo.arizona.edu indigenous people speaking their own tongue: country it is not necessary to fly to Belem or Tarahumare, Warahio, Mayo, and Yaqui. Gentry Borneo or Brazil. Dry tropical habitats and Geosciences Home Page absorbed local botanical knowledge (the best pine -oak forest, along with a variety of well - http: / /www.geo.arizona.edu way to meet the people in the Sierra is with a known mines or mineralized outrops for the specimen in hand and the query "Por favor, economic geologist, are a day's drive south como se llama este tipo de planta ? "). of Tucson. CORRECTIONS GEOSCIENCES FALL '98 COLLOQUIUM SERIES We would like to acknowledge the SEPTEMBER generous donation of BHP Copper to Terry Wallace (UA)The May 1998 Indian and Pakistani Nuclear Tests: Seismology and the CTBT GeoDaze '97 and apologize for omitting Kelin Whipple (MIT)Dynamics of Bedrock Channel Erosion them from the list of donors. Julia Cole (U of Colorado)The Changing Pulse of Pacific Variability & It's Impact on U.S. Drought OCTOBER Claus Siebe (UNAM)Late Pleistocene and Holocene Plinian Eruptions at Popocatepetl Volcano Paul Jensen (MS '98) received the AGS Tom Sharp (ASU)High -Pressure Minerals in Shocked Meteorites Harold Courtright Scholarship for $1000 in December 1997 for his work in the Suzanne Baldwin (UA)The Aegean Metamorphic Core Complexes Sierrita Mountains. John Chesley (UA)The 1870s/1880s Record of Himalayan Paleorivers Louise Kellog (UC- Davis)Geodynamic Models to Try to Reconcile Geochemistry, Seismology, and Geodynamics of the Earth's Mantle NOVEMBER The concluding sentence of Copper Maya Elrick (UNM)Recognizing Millennial -scale Paleoclimate Fluctuations in Paleozoic Deep - Metallogenesis in Chile by Joaquin Ruiz water Carbonates (Spring '98 issue) was omitted: Barbara Tewksbury (Hamilton College) How to Do a Better Job Designing a Course "Interestingly, and not suprisingly, the Bob Hecky (National Water Research Institute of Canada)The Changing Surface of Africa: Are mantos have more of their Os derived Land Use Practices a Threat to the Biodiversity of the African Great Lakes? from the crust and are therefore more DECEMBER radiogenic. This may be very useful in Jon Spencer (Arizona) Geological Survey)Geologic Continuous Casting as a Newly Recognized exploration since one sample may yield Geologic Process and Significance for Extensional Tectonics information on the type of target." CHECK OUR WEB PAGE (WWW.GEO.ARIZONA.EDU) FOR SPRING '99 COLLOQUIUM LISTINGS page2 The University of Arizona /Geosciences Newsletter Fall 1998 Basin and Range Province. Peaks of up to 15,000' elevation occur along the TAM, and News peaks over 16,000' are present in the EWM. The aim of this project is to address a fundamental question regarding the tectonic Around the relationship between East and West Antarctica: does the Cenozoic rift flank of the West Antarctic rift system (the TAM) extend along Department the EWM of West Antarctica, or does the Cenozoic rift flank continue along the trend of the TAM? The answer to this question has Randy Richardson implications for the tectonic evolution of the West Antarctic rift system, the uplift history Named Assistant and uplift mechanism of the TAM, and the relationship of East to West Antarctica. Fission Vice President for track and 40Ar /39Ar thermochronology will be used to determine the timing and relative Undergrad Education amounts of Mesozoic versus Cenozoic thermal and denudation events in the TAM. These results will be compared to those from the EWM. The field party will be flown from McMurdo Station on Ross Island to the Thiel Mountains, a flight of almost 5 hours in a ski - equipped C -130. Once there the group will use snowmobiles and sledges to move around as well as ski -equipped Twin Otter aircraft to reach locations inaccessible by snowmobiles.
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