Data report; Quantitative powder X-ray diffraction analysis from the Canterbury Basin, Expedition 317

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doi: 10.2204/iodp.proc.317.205.2014
Author(s): Villasenor, Tania; Jaeger, John M.
Integrated Ocean Drilling Program, Expedition 317 Scientists, College Station, TX
Author Affiliation(s): Primary:
University of Florida, Department of Geological Sciences, Gainesville, FL, United States
Shinshu University, Japan
Texas A&M University, United States
Lamont-Doherty Earth Observatory, United States
Florida State University, United States
GNS Science, New Zealand
James Cook University of North Queensland, Australia
Institut Universitaire Européen de la Mer, France
Istituto Nazionale di Geofisica e Vulcanologia, Italy
China University of Geosciences, China
Macquarie University, Australia
University of Bremen, Germany
University of Florida, United States
Yokohama National University, Japan
University of Cambridge, United Kingdom
Seoul National University, South Korea
Western Michigan University, United States
Heriot-Watt University, United Kingdom
California State University at Northridge, United States
Queens College, United States
Kumamoto University, Japan
Universita degli Studi di Parma, Italy
California State University at Fresno, United States
Nagoya University, Japan
Geological Survey of Japan, Japan
Otago University, New Zealand
Chiba University, Japan
University of Tokyo, Japan
Volume Title: Proceedings of the Integrated Ocean Drilliing Program; Canterbury Basin sea level; Expedition 317 of the riserless drilling platform, Townsville, Australia, to Wellington, New Zealand, Sites U1351-U1354, 4 November 2009-3 January 2010
Volume Author(s): Fulthorpe, Craig S.; Hoyanagi, Koichi; Blum, Peter; Guèrin, Gilles; Slagle, Angela L.; Blair, Stacie A.; Browne, Gregory H.; Carter, Robert M.; Ciobanu, Maria-Cristina; Claypool, George E.; Crundwell, Martin P.; Dinares-Turell, Jaume; Xuan Ding; George, Simon C.; Hepp, Daniel A.; Jaeger, John M.; Kawagata, Shungo; Kemp, David B.; Kim, Young-Gyun; Kominz, Michelle A.; Lever, Helen; Lipp, Julius; Marsaglia, Kathleen M.; McHugh, Cecilia M.; Murakoshi, Naomi; Ohi, Takeshi; Pea, Laura; Richaud, Mathieu; Suto, Itsuki; Tanabe, Susumu; Tinto, Kirsteen J.; Uramoto, Goichiro; Yoshimura, Toshihiro
Source: Proceedings of the Integrated Ocean Drilliing Program; Canterbury Basin sea level; Expedition 317 of the riserless drilling platform, Townsville, Australia, to Wellington, New Zealand, Sites U1351-U1354, 4 November 2009-3 January 2010, Craig S. Fulthorpe, Koichi Hoyanagi, Peter Blum, Gilles Guèrin, Angela L. Slagle, Stacie A. Blair, Gregory H. Browne, Robert M. Carter, Maria-Cristina Ciobanu, George E. Claypool, Martin P. Crundwell, Jaume Dinares-Turell, Xuan Ding, Simon C. George, Daniel A. Hepp, John M. Jaeger, Shungo Kawagata, David B. Kemp, Young-Gyun Kim, Michelle A. Kominz, Helen Lever, Julius Lipp, Kathleen M. Marsaglia, Cecilia M. McHugh, Naomi Murakoshi, Takeshi Ohi, Laura Pea, Mathieu Richaud, Itsuki Suto, Susumu Tanabe, Kirsteen J. Tinto, Goichiro Uramoto and Toshihiro Yoshimura; Integrated Ocean Drilling Program, Expedition 317 Scientists, College Station, TX. Proceedings of the Integrated Ocean Drilling Program (Online), Vol.317, 38p. Publisher: Integrated Ocean Drilling Program Management International for the Integrated Drilling Program (IODP), Washington, DC, United States. ISSN: 1930-1014 CODEN: IDSDA6
Note: In English. 27 refs.; illus., incl. 5 tables, geol. sketch map
Summary: This report describes the mineral assemblages from four sites in the Canterbury Basin, eastern South Island, New Zealand. Coring was completed during Expedition 317 of the Integrated Ocean Drilling Program. A total of 838 unlithified samples of continental margin lithologies (mud, sand, shell hash, and marl) were analyzed by X-ray diffraction (qXRD) using random powder mounts of bulk samples. Sample analyses primarily targeted seismic sequences S16-S19 at all four sites (U1351-U1354), with secondary emphasis on samples with complementary downhole petrophysical data. The primary minerals ob served above analytical confidence limits (3% by weight) were, in order of relative abundance, plagioclase (albite + oligoclase + labradorite; ∼25 wt%), illite + muscovite (∼24 wt%), quartz (∼17 wt%), chlorite (∼13 wt%), and calcite + aragonite (∼7 wt%). Also observed above detection limits were K-feldspar (orthoclase + microcline), epidote, amphiboles (hornblende), and biotite. Total carbonates vary the most at all four sites, ranging in relative abundance from 0 to 77 wt%, with the largest variability at Site U1352. Comparison of carbonate concentrations measured by coulometer and qXRD on colocated samples resulted in an R 2 value of 0.96 ( n = 194) over the full range of values. Spatially, the feldspars (plagioclase and K-feldspar) and quartz were on average the most abundant at the innermost shelf Site U1353 (∼50 wt%) but were still significant components at the upper slope Site U1352 (∼47 wt%). Average illite + muscovite + chlorite concentrations were highest at Site U1352 (∼44 wt%) but were still a significant component (∼35 wt%) at Site U1353. Prominent changes in mineralogy were not observed across lithostratigraphic unit boundaries, attesting to the gradual transition in lithofacies during progressive seaward margin development. Within lithostratigraphic units, notable changes in mineralogy, primarily between siliciclastic and carbonate minerals, are observed at the projected depths of seismic sequence boundaries. Transitions in the relative abundances of each mineral are often seen within seismic sequence intervals and are the largest in the uppermost two to four sequences (S16-S19).
Year of Publication: 2014
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 06 Petrology, Sedimentary; Australasia; Canterbury Basin; Carbonates; Clastic sediments; Concentration; Cores; Expedition 317; IODP Site U1351; IODP Site U1352; IODP Site U1353; IODP Site U1354; Integrated Ocean Drilling Program; Marine sediments; Mineral assemblages; Mineral composition; New Zealand; Pacific Ocean; Sand; Sediments; Silicates; South Island; South Pacific; Southwest Pacific; West Pacific; X-ray diffraction data
Coordinates: S445303 S445303 E1715024 E1715024
S445615 S445615 E1720122 E1720122
S444607 S444607 E1714026 E1714026
S445050 S445050 E1714712 E1714712
Record ID: 2014018613
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