FN Archimer Export Format
PT J
TI Imaging of organic signals in individual fossil diatom frustules with nanoSIMS and Raman spectroscopy
BT 
AF AKSE, Shaun P
   Das, Gobind
   Agusti, Susana
   Pichevin, Laetitia
   Polerecky, Lubos
   Middelburg, Jack J
AS 1:1;2:2,3;3:2;4:4;5:1;6:1;
FF 1:;2:;3:;4:;5:;6:;
C1 Department of Earth Sciences, Utrecht University, PO Box 80021, 3508 TA Utrecht, the Netherlands
   Red Sea Research Center and Core Labs, King Abdullah University for Science and Technology, Thuwal, Saudi Arabia
   Department of Physics, Khalifa University, Abu Dhabi, P.box-127788, United Arab Emirates
   University of Edinburgh, School of Geosciences, Grant Institute, James Hutton Road, Edinburgh EH9 3FE, United Kingdom
C2 UNIV UTRECHT, NETHERLANDS
   KAUST, SAUDI ARABIA
   UNIV KHALIFA, UNITED ARAB EMIRATES
   UNIV EDINBURGH, UK
IF 3.994
TC 3
UR https://archimer.ifremer.fr/doc/00663/77508/79268.pdf
LA English
DT Article
CR MD 126 / MONA
BO Marion Dufresne
DE ;Biogenic silica;Diatom-bound organic matter;Marine sediments;NanoSIMS;Raman spectroscopy
AB The organic matter occluded in the silica of fossil diatom frustules is thought to be protected from diagenesis and used for paleoceanographic reconstructions. However, the location of the organic matter within the frustule has hitherto not been identified. Here, we combined high spatial resolution imaging by nanoSIMS and Raman micro-spectroscopy to identify where the organic material is retained in cleaned fossil diatom frustules. NanoSIMS imaging revealed that organic signals were present throughout the frustule but in higher concentrations at the pore walls. Raman measurements confirmed the heterogenous presence of organics but could not, because of lower spatial resolution, resolve the spatial patterns observed by nanoSIMS. 
PY 2021
PD JAN
SO Marine Chemistry
SN 0304-4203
PU Elsevier
VL 228
UT 000608138600002
DI 10.1016/j.marchem.2020.103906
ID 77508
ER

EF