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Martedi 5 settembre

 

16:00-16:15 Lars-Oliver Kautschor [Zeiss]: X-Ray Microscopy as a correlative imaging technique

16:15-16:30 Casini E. & Nénert G. [Panalytical]: From the Empyrean platform to the Aeris benchtop: a few case studies related to PXRD applications

16:30-16.45 Behrens K., Lindhuber M., Slater C. & Gianesella M. [Bruker]: Explore the microcosmos - How modern X-ray fluorescence spectrometry solves analytical tasks in geological research

16.45-17.00 Aragona G., Seed M. & Barker S. [Elementar]: Air, soil, rocks, water: stable isotopes as the most versatile technique in geosciences

17.00-17.15 Sacchi M., Iadanza A. & Camerlenghi A. [IODP]: The new phase of IODP-Italia and the International Ocean Discovery Program: Italy as part of ECORD and IODP



 

X-ray microscopy as a correlative imaging technique

Kautschor L.O.*1
1 Carl Zeiss Microscopy GmbH, Oberkochen, Germany

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As X-ray microscopy is extended from the synchrotron community to the laboratory, correlation to other imaging techniques is vital for many reasons. Partly due to the need to show where the technique fits in the landscape of multi length scale imaging and partly to show the efficacy of the application by correlating similar imaging modalities. Furthermore in situ and 4D quantification of microstructural evolution under controlled environment as a function of time, temperature, chemistry or stress can be performed repeatable on the same sample, using practical specimen sizes ranging from tens of microns to several cm diameter, with achievable spatial imaging resolution from submicron to 50 nm. We will show through various applications from the fields of geosciences, as geology and paleontology, how X-ray microscopy complements existing technology, not replacing any technique, but adding further information to gain a deeper understanding of the scientific application.


 

From the Empyrean platform to the Aeris benchtop: a few case studies related to PXRD applications

Casini E.*1 & Nénert G.2

1 PANalytical S.r.l., Lissone (MB)
2 PANalytical B.V., Almelo, The Netherlands

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Interplay between crystal structure and physical properties of minerals and related compounds is the key for the development of new materials for advanced applications.
Malvern-PANalytical are committed to provide state-of-the-art solutions covering both basic and advanced sample characterizations in ambient and non-ambient conditions (temperature, pressure, humidity, etc). In this talk we mainly report on the synthesis and the crystal structure determination of 2 new vanadates related minerals. AgCaVO4 is a new material related to arcanite (β-K2SO4). Its crystal structure was determined from laboratory powder X-ray data (Nénert, 2017). Contrary to previously reported chemical compositions AgBVO4 (B = Mg, Cd), this compound exhibits a distorted arcanite structure. Furthermore, we reported recently a new larnite related vanadate NaSrVO4 exhibiting a complex phase diagram as a function of temperature (Nénert et al., 2017). This material is the first report for a AIBIIXVO4 chemistry exhibiting the larnite structure. This is suggesting that the larnite structure can accommodate a richer chemistry that initially foreseen.

Nénert, G. (2017): Synthesis and crystal structure of the new vanadate AgCaVO4: Comparison with the arcanite structure. Z. Kristallogr., in press, DOI: https://doi.org/10.1515/zkri-2017-2041
Nénert, G., O'Meara P., Degen, T. (2017): Crystal structure and polymorphism of NaSrVO4: the first AIBIIXVO4 larnite-related structure from X-ray powder diffraction data. Phys. Chem. Minerals, in press, DOI: 10.1007/s00269-017-0873-6


Explore the microcosmos - How modern X-ray fluorescence spectrometry solves analytical tasks in geological research

Behrens K.*1, Lindhuber M.1, Slater C.1 & Gianesella M.2

1 Bruker AXS, Karlsruhe, Germany
2 Bruker Italia S.r.l., Milano

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Microanalysis is a vital tool for researchers in geology and paleontology: Based on the elemental distribution in rocks, meteorites or fossils the origin of materials and the genesis of formations have been investigated and clarified. Different analytical technologies have emerged into this field: While electron microscopy based instruments are requiring extensive sample preparation and is limited with the maximum sample size, EDXRF technology are offering the capability of automation, little sample preparation and higher sample throughput. Advantage of SEM is the very high spatial resolution down to the nm range, EDXRF based methods are requiring special optics to achieve spot sizes around 50 µm. The detection limit of SEM is worse compared to EDXRF based methods, but EDXRF is limited in light element performance and spectral resolution.
Wavelength dispersive XRF has been widely used in industrial applications, but the beam path is optimal for bulk analysis due to the large spot sizes. New X-ray technologies and changes in the beam path are enabling to make use of the high spectral resolution and the optimal light element sensitivity reducing the spot sizes down to the 300 µm range.
This new WDXRF instrument has been used to analysis a range of different material, such as Fe-Ni-meteorite fragments from Arizona, minerals with rare earth element and fossils to show typical results. The technology will be compared with the established methods.


 

Air, soil, rocks, water: stable isotopes as the most versatile technique in geosciences

Aragona G.1, Seed M.2 & Barker S.2

1 Elementar Italia Srl
2 Elementar UK Ltd


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Isotope geochemistry is an aspect of geosciences based upon the study of natural variations in the relative abundances of isotopes of various elements. Variations in isotopic abundance are measured by isotope ratio mass spectrometry, and they can reveal information about the ages and origins of rock, air or water bodies, or processes due to a mixture between them. Stable isotope geochemistry is largely concerned with isotopic variations arising from mass-dependent isotope fractionation. The stable isotopes technique finds a large use in the geosciences field.
Carbon, nitrogen, hydrogen, oxygen and sulfur stable isotopes are the most important elements investigated throught IRMS technique in hydrology, petrology, geology, oceanography. Elementar, as world leading company of analytical instruments for non-metallic elements like carbon, nitrogen, sulfur, hydrogen, oxygen can give an overview about the state of the art of the technology involved in such fields.


 

 

The new phase of IODP-Italia and the International Ocean Discovery Program: Italy as part of ECORD and IODP

Sacchi M.1, Iadanza A.* 1-2 & Camerlenghi A.3

1 IAMC-CNR - Istituto per l'Ambiente Marino Costiero - Consiglio Nazionale delle Ricerche, Napoli
2 DTAA-CNR - Dip. Scienze del Sistema Terra e Tecnologie per l'Ambiente – CNR Roma
3 OGS - Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste

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The International Ocean Discovery Program (IODP) represents a long lasting international collaborative research program dedicated to advancing scientific understanding of the Earth through drilling, coring, and monitoring the sub-seafloor. The program is currently supported by 24 countries, but has been reshaped and restructured through time (DSDP-ODP-IODP). Although Italian scientists have been successfully involved in ocean scientific drilling since late 1960s (DSDP), Italy officially joined the drilling program ODP in 1986 and then became a member country of the European Consortium for Ocean Research Drilling (ECORD), since its foundation in 2003. ECORD is a management structure of 15 members (14 European countries and Canada) for scientific ocean drilling as part of the International Ocean Discovery Program (IODP) (under the 2013-2023 Science Plan "Illuminating Earth's Past, Present and Future) and previously the Integrated Ocean Drilling Program – IODP from 2003 to 2013. The Italian participation in IODP as an ECORD member is now successfully established through a national funding that has been annually allocated by MIUR since 2013. IODP-Italia operates through a national Committee (IODP-Italia Committee, appointed in 2015), which is composed of members representing CNR, CoNISMa, OGS, ENEA, INGV e AMRA (ICDP-Italia), and is supported by a Science Coordinator, with the management and administrative support of the National Research Council (CNR). IODP-Italia coordinates, supports, and promotes the participation of Italian scientists and educators in ECORD and IODP activities.
IODP-Italia financially supports the national researchers and educators selected by ECORD-IODP to be involved in cruise and post-cruise activities as participants, organizers and chief scientists, as well as young scientists to attend training courses and summer schools organized by ECORD.
All opportunities to get involved in the program are regularly circulated through our mailing list Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo. and published on our website www.iodp-italia.cnr.it. On our website you will also find updated details of Italian participation in recent and past ECORD-IODP activities. Among the forthcoming initiatives, IODP-Italia promotes the organization of a national Workshop on drilling proposals in the Mediterranean area to be hosted in Rome by early 2018. The workshop will be coordinated by IODP-Italia Committee and supported by IODP-Italia national office.