Readings for geochemistry seminar – FALL 2002

FRIDAYS 12:30 to ~2 PM, ROOM 327

PIZZA will now be provided!

Participating faculty: Jerry Dickens, Cin-Ty Lee, and Glen Snyder

New reading topics/themes and papers are welcomed, especially from students! Please send suggestions to Cin-Ty Lee at ctlee@rice.edu

PURPOSE: To discuss current geochemical research or review classic papers, which have broad applications to geology, geochemistry, oceanography, planetary geology, cosmochemistry, or the environmental sciences.

CLICK ON TITLES TO DOWNLOAD PAPERS

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6 September 2002 – THEME: Tracking Aeolian dust transport to the ocean

• Radiogenic Hf isotopic compositions of continental eolian dust from Asia, its variability and its implications for seawater Hf

Thomas Pettke; Der-Chuen Lee, Alex N. Halliday, David K. Rea

Earth and Planetary Science Letters 6307 (2002) 1-12 (IN PRESS)

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13 September 2002 – cancelled because of Rice Alumni party

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20 September 2002 – THEME: Tracking Sea Surface Temperatures through time using Sr/Ca ratio of corals; ENSO and Glacial-Interglacial variations

Discussion Leader: Lee

• Sea-surface temperature from coral skeletal Strontium/Calcium ratios

J. Warren Beck, R. Lawrence Edwards, Emi Ito, Frederick W. Taylor, Jacques Recy

Science 257 (1992) 644-647

• An assessment of the Sr/Ca ratio in shallow water hermatypic corals as a proxy for sea surface temperature

John F. Marshall, Macolm T. McCulloch

Geochimica Cosmochimica Acta 66 (2002) 3263-3280

• Is El Nino Changing?

Alexey V. Fedorov, S. George Philander

Science 288 (2000) 1997-2002

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27 September 2002 – THEME: Timing of core formation on the Earth; implications for planetary differentiation

Discussion Leader: Lee

• Birth of a Solar System

A. G. W. Cameron

Nature 418 (2002) 924-925

• A short timescale for terrestrial planet formation from Hf-W chronometry of meteorites

Qingzhu Yin, Stein B. Jacobsen, Katsuyuki Yamashita, Janne Blichert-Toft, Phillipe Telouk, Francis Albarede

Nature 418 (2002) 949-952

• Rapid accretion and early core formation on asteroids and the terrestrial planets from Hf-W chronometry

Klein, Munker, Mezger, Palme

Nature 418 (2002) 952-955

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4 October 2002 – THEME: Gas systematics of island arc systems: implications for global cycling

Discussion Leader: Dr. Glen Snyder

• Subduction and recycling of nitrogen along the Central American margin

Fischer, Hilton, Zimmer, Shaw, Sharp, Walker

Science 297 (2002) 1154-1157

• Volcanic flux of nitrogen from the Earth

Sano, Takahata, Nishio, Fischer, Williams

Chemical Geology 171 (2001) 263-271

• Origin of carbon in fumarolic gas from island arcs

Sano and Marty

Chemical Geology 119 (1995) 265-274

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11-12 October 2002 – Martian Meteorite Workshop at NASA’s Lunar and Planetary Institute

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18 October 2002 – Theme: Nucleosynthesis and origin of solar system

Discussion Leader: Lee

• Diverse supernova sources of pre-solar material inferred from molybdenum isotopes in meteorites

Yin, Jacobsen, Yamashita; Nature 415 (2002):881-883.

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25 October 2002 – Theme: Iodine-129 as a tracer of fluid migration in the environment

Discussion Leadeer: Snyder

• Iodine-129 constraints on the residence time of deep marine brines in the Canadian Shield

Bottomly, Renaud, Kotzer, Clark; Geology 30 (2002):587-590.

• Recycling of iodine in fore-arcs: evidence for iodine brines in Chiba, Japan

Muramatsu, Fen, Yoshida; Earth and Planetary Science Letters 192 (2001): 583-593.

Additional Material (Optional)

• The129 Iodine bomb pulse recorded in Mississippi River Delta sediments: results from isotopes of I, Pu, Cs, Pb, and C

Oktay, Santshi, Moran, Sharma; Geochimica Cosmochimica Acta 64 (2000): 989-995.

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1 November 2002 – Theme: Mantle geodynamics and geochemistry

Discussion Leaders: Katie Cooper and Lee

• Mantle convection and plate tectonics: toward an integrated physical and chemical theory

Tackley, Science 288 (2000):2002-2007

• Mantle Geochemistry: the message from oceanic volcanism (PLEASE OBTAIN A COPY OUTSIDE RM 324)

Hoffmann, Nature 385 (1997):219-385.

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8 November 2002 – THEME: Dissolution and crystal growth kinetics on the nano-scale

Discussion Leader: Mikala Beig

• Dissolution kinetics of magnesite in acidic aqueous solution: a hydrothermal atomic force microscopy study assessing step kinetics and dissolution flux

Higgins, Jordan, Eggleston, 2002, Geochimica Cosmochimica Acta 66, p. 32013-3210

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15 November 2002 – THEME: Origin of immiscibility in binary silicate, borate and germanate melts with applications to geological systems.

Discussion Leader: Dr. Pierre Hudon (NASA Johnson Space Center)

• The nature of phase separation in binary oxide melts and glasses. I. Silicate systems

Pierre Hudon *, Don R. Baker, Journal of Non-Crystalline Solids 303 (2002) 299–345

SUPPLEMENTARY reading

• The nature of phase separation in binary oxide melts and glasses. III. Borate and germanate systems

Pierre Hudon and Don R Baker, Journal of Non-Crystalline Solids 303 (2002) 354–371

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22 November 2002 – NeoProterozoic Snowball Earth

Discussion Leader: Grace Castellini

• The Snowball Earth hypothesis: testing the limits

Hoffman and Schrag, 2002, Terra Nova 14 (129-155)

• "Late Proterozoic low-latitude global glaciation: the snow-ball earth" from The Proterozic Biosphere (ed. J.W. Schopf and C. Klein), Cambridge University Press, 1992.  Pages 51-52 (OBTAIN COPY FROM GRACE CASTELLINI)