FN Archimer Export Format
PT J
TI Ship-board determination of whole-rock (ultra-)trace element concentrations by laser ablation-inductively coupled plasma mass spectrometry analysis of pressed powder pellets aboard the D/V Chikyu
BT 
AF ROSPABé, Mathieu
   KOURIM, Fatma
   TAMURA, Akihiro
   TAKAZAWA, Eiichi
   GIAMPOURAS, Manolis
   CHATTERJEE, Sayantani
   ISHII, Keisuke
   COOPER, Matthew J.
   GODARD, Marguerite
   CARTER, Elliot
   ABE, Natsue
   MOE, Kyaw
   TEAGLE, Damon A. H.
AS 1:1,2;2:3;3:4;4:5;5:6;6:5;7:5;8:7;9:8;10:9;11:10;12:11;13:7;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;
C1 Japan Agcy Marine Earth Sci & Technol JAMSTEC, Res Inst Marine Geodynam IMG, 2-15 Natsushima, Yokosuka, Kanagawa 2370061, Japan.
   Univ Toulouse, Observ Midi Pyrenees, CNRS, Geosci Environm Toulouse GET,IRD, 14 Ave E Belin, F-31400 Toulouse, France.
   Acad Sinica, Inst Earth Sci, Acad Rd, Taipei 11529, Taiwan.
   Kanazawa Univ, Coll Sci & Engn, Dept Sci, Kanazawa, Ishikawa 9201192, Japan.
   Niigata Univ, Fac Sci, Dept Geol, Niigata, Niigata 9502181, Japan.
   Univ Granada, Inst Andaluz Ciencias Tierra IACT, CSIC, Avd Palmeras 4, Granada, Spain.
   Univ Southampton, Natl Oceanog Ctr Southampton, Sch Ocean & Earth Sci, European Way, Southampton SO14 3ZH, Hants, England.
   Univ Montpellier, Geosci Montpellier, CNRS, Pl E Bataillon, F-34095 Montpellier, France.
   Trinity Coll Dublin, Dept Geol, Dublin 2, Ireland.
   Japan Agcy Marine Earth Sci & Technol JAMSTEC, Mantle Drilling Promot Off, Inst Marine Earth Explorat & Engn MarE3, Kanazawa Ku, 3173-25 Showa Machi, Yokohama, Kanagawa 2360001, Japan.
   Japan Agcy Marine Earth Sci & Technol JAMSTEC, Inst Marine Earth Explorat & Engn MarE3, 2-15 Natsushima, Yokosuka, Kanagawa 2370061, Japan.
C2 JAMSTEC, JAPAN
   UNIV TOULOUSE, FRANCE
   ACAD SINICA, TAIWAN
   UNIV KANAZAWA, JAPAN
   UNIV NIIGATA, JAPAN
   UNIV GRANADA, SPAIN
   UNIV SOUTHAMPTON, UK
   UNIV MONTPELLIER, FRANCE
   TRINITY COLL DUBLIN, IRELAND
   JAMSTEC, JAPAN
   JAMSTEC, JAPAN
IN DOAJ
TC 3
UR https://archimer.ifremer.fr/doc/00773/88516/94182.pdf
   https://archimer.ifremer.fr/doc/00773/88516/94183.pdf
LA English
DT Article
AB The Oman Drilling Project (OmanDP), performed under the International Continental Scientific Drilling Program (ICDP), is an international scientific research project that undertook drilling at a range of sites in the Semail ophiolite (Oman) to collect core samples spanning the stratigraphy of the ophiolite, from the upper oceanic crust down to the basal thrust. The cores were logged to International Ocean Discovery Program (IODP) standards aboard the D/V Chikyu. During ChikyuOman2018 Leg 3 (July-August 2018), participants described cores from the crust-mantle transition (CM) sites. The main rock types recovered at these sites were gabbros, dunites and harzburgites, rocks typically forming the base of the oceanic crust and the shallow mantle beneath present-day spreading centres. In addition to the core description, selected samples were analysed by X-ray fluorescence spectrometry (XRF) for their chemical compositions, including major, minor and some trace elements. To complement these standard procedures, we developed new approaches to measure ultra-trace element concentrations using a procedure adapted from previous works to prepare fine-grained pressed powder pellets coupled with laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis using instrumentation aboard the D/V Chikyu. First, three (ultra)mafic reference materials were investigated to test and validate our procedure (BHVO-2, BIR-1a and JP-1), and then the procedure was applied to a selection of gabbro and dunite samples from the CM cores to explore the limitations of the method in its current stage of development. The obtained results are in good agreement with preferred values for the reference materials and with subsequent solution replicate analyses of the same samples performed in shore-based laboratories following Leg 3 for the CM samples. We describe this procedure for the determination of 37 minor and (ultra-)trace elements (transition elements and Ga, Li and Large-Ion Lithophile Elements (LILE), Rare Earth Elements (REE), High-Field-Strength Elements (HFSE), U, Th, and Pb) in mafic and ultramafic rocks. The presented method has the major advantage that it allows the determination at sea of the (ultra-)trace element concentrations in a "dry", safe way, without using acid reagents. Our new approach could be extended for other elements of interest and/or be improved to be adapted to other rock materials during future ocean drilling operations aboard the D/V Chikyu and other platforms. 
PY 2022
PD FEB
SO Scientific Drilling
SN 1816-8957
PU Copernicus Gesellschaft Mbh
VL 30
UT 000763332200001
BP 75
EP 99
DI 10.5194/sd-30-75-2022
ID 88516
ER

EF