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2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

Session No. 180
Tuesday, 3 November 2015: 8:00 AM-12:00 PM
Room 343 (Baltimore Convention Center)

T49. Mechanistic Insights into the Biogeochemical Processes Controlling Phosphorus Transport and Cycling

GSA Geobiology & Geomicrobiology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society
Yuanzhi Tang, Nadine Kabengi and Rixiang Huang, Session Chairs
Paper #
Start Time
 
8:00 AM
Introductory Remarks
180-1
8:15 AM
INSIGHTS INTO PHOSPHORUS CYCLING ACROSS OXIC-ANOXIC BOUNDARIES IN MARINE SYSTEMS
BENITEZ-NELSON, Claudia, Earth & Ocean Sciences and Marine Science Program, University of South Carolina, Columbia, SC 29208, MCPARLAND, Erin, Marine and Environmental Biology Program, University of Southern California, Los Angeles, CA 90089, TAYLOR, Gordon, School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794 and THUNELL, Robert C., Department of Earth and Ocean Sciences, University of South Carolina, Columbia, SC 29208, cbnelson@geol.sc.edu
180-2
8:35 AM
DNA THERMOMETRY AND O-ISOTOPIC COMPOSITION OF ORGANOPHOSPHORUS SOURCE MATERIALS:  NEW TOOLS IN THE STUDY OF BIOGEOCHEMICAL CYCLING AND TRANSPORT OF P
BLAKE, Ruth E., Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, SURKOV, Alex V., Borisoglebsk State Pedagogical Institute, Voronezh region, Russia, STOUT, Lisa M., Department of Plant and Soil Sciences,, University of Delaware,, Newark, DE 19716, LI, Hui, Dept. of Geology and Geophysics, Yale University, New Haven, CT 06511, JAISI, Deb P., Plant and Soil Sciences, University of Delaware, Newark, DE 19716 and CHANG, Sae Jung, Korea Basic Science Institute, Chungbuk, 363-883, South Korea, ruth.blake@yale.edu
180-3
8:55 AM
TRACE ELEMENT ASSOCIATION WITH STRUVITE DURING RECOVERY OF PHOSPHORUS FROM CONTAMINATED WATER
ROUFF, Ashaki A., Earth & Environmental Sciences, Rutgers University, 101 Warren St., Newark, NJ 07102, ashaki.rouff@rutgers.edu
180-4
9:15 AM
SURFACE ADSORPTION AND ENZYMATIC HYDROLYSIS OF POLYPHOSPHATES – IMPLICATIONS FOR UNDERSTANDING THE BIOGEOCHEMICAL CYCLING POLYPHOSPHATE
HUANG, Rixiang, Earth and Atmospheric Sciences, 311 Ferst Dr., Atlanta, GA 30332 and TANG, Yuanzhi, School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0340, rixiang.huang@eas.gatech.edu
180-5
9:30 AM
KINETICS AND PATHWAYS OF PHYTATE DEGRADATION: LINKING ENZYMATIC DEGRADATION TO INCREASED ORTHOPHOSPHATE IN THE ENVIRONMENT
SUN, Mingjing, Plant and Soil Sciences, University of Delaware, 531 S College Ave, Newark, DE 19716, WU, Jiangqi, Newark, DE 19716 and JAISI, Deb P., Plant and Soil Sciences, University of Delaware, Newark, DE 19716, smj@udel.edu
180-6
9:45 AM
THERMODYNAMIC PREDICTIONS OF BIOAPATITE STABILITY IN ENVIRONMENTAL SYSTEMS
KEENAN, Sarah W., Department of Biology, Saint Louis University, Macelwane Hall, 3507 Laclede Avenue, St. Louis, MO 63103 and ENGEL, Annette Summers, Department of Earth and Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996, keenansw@slu.edu
180-7
10:00 AM
REMINERALIZATION OF ORGANIC PHOSPHORUS AND PRECIPITATION OF AUTHIGENIC PHOSPHATE IN THE WATER COLUMN IN THE MID-CHESAPEAKE BAY
LI, Jiying1, REARDON, Patrick N.2, JOSHI, Sunendra1, BAI, Yuge1, BEAR, Kristi1, WASHTON, Nancy2 and JAISI, Deb P.1, (1)Plant and Soil Sciences, University of Delaware, Newark, DE 19716, (2)Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, lijiying@udel.edu
 
10:15 AM
Break
180-8
10:30 AM
COUPLED FE-P OR C-P PATHWAYS OF P CYCLING IN THE CHESAPEAKE BAY SEDIMENTS: COMPARISON OF THREE SITES WITH CONTRASTING BOTTOM WATER HYPOXIA
JOSHI, Sunendra R.1, RISAL, Saswot2, LI, Jiying1, LI, Wei3 and JAISI, Deb P.1, (1)Plant and Soil Sciences, University of Delaware, Newark, DE 19716, (2)Newark, DE 19716, (3)Nanjing, 210093, joshi@udel.edu
180-9
10:45 AM
EFFECTS OF ZN PRESENCE ON THE STRUCTURE AND REACTIVITY OF MN OXIDES TOWARDS PHOSPHATE SORPTION
ZHAO, Shiliang, School of earth and atmospheric science, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, GA 30332 and TANG, Yuanzhi, School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0340, zshiliang3@gatech.edu
180-10
11:00 AM
IRON-MANGANESE-PHOSPHORUS CYCLING IN SHALLOW FRESHWATER SYSTEMS UNDER ICE: THE CASE FOR PRIMING THE P PUMP
DRUSCHEL, Gregory, Department of Earth Sciences, Indiana University - Purdue University Indianapolis, 723 W. Michigan Ave., SL118, Indianapolis, IN 46202, SCHROTH, Andrew, University of Vermont, GILES, Courtney D., The James Hutton Institute, Ingergowrie, Dundee, United Kingdom, ISLES, Peter, Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT 05401 and XU, Yaoyang, Rubenstein School of Environment and Natural Resources, University of Vermont, 81 Carigan Drive, Burlington, VT 05405, gdrusche@iupui.edu
180-11
11:15 AM
THE PHOSPHORUS CYCLE IN A VOLCANIC BASIN LAKE IS AFFECTED BY ELEVATED SILICA CONCENTRATIONS:  UPPER KLAMATH LAKE, OREGON
SIMON, Nancy S1, CONKO, Kathryn M.2, INGLE, Sarah3, FISCHER, Kris4 and ABDUL ALI, Ahmad3, (1)Department of Interior, U.S. Geological Survey, 432 National Center, 12201 Sunrise Valley Dr,, Reston, VA 20192, (2)Department of Interior, U S Geological Survey, MS 430, 12201 Sunrise Valley Drive, Reston, VA 20192, (3)Department of Interior, U.S. Geological Survey, MS 432, 12201 Sunrise Valley Dr., Reston, VA 20192, (4)Klamath Tribes, Klamath Tribes Research Station, 5671 Sprague River Hwy., Chiloquin, OR 97624, nssimon@usgs.gov
180-12
11:30 AM
A PALEOLIMNOLOGICAL STUDY OF THE STRANGE CASE OF LONG POND (GA, USA) : HIGH PHOSPHORUS INPUTS WITH A LACK OF EUTROPHICATION
TIDWELL, Chris, Geosciences, Georgia State University, 24 Peachtree Ave NE, Room 340, Atlanta, GA 30303, WATERS, Matthew, Department of Biology, Valdosta State University, Valdosta, GA 31698, DEOCAMPO, Daniel M., Geosciences, Georgia State University, 24 Peachtree Center Avenue Northeast, Atlanta, GA 30303 and KABENGI, Nadine, Department of Geosciences, Georgia State University, 24 Peachtree Center Avenue, Kell Hall, Atlanta, GA 30303, ctidwell1@student.gsu.edu
 
11:45 AM
Discussion
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