• Le fonds

Post-doc : Ingénieur de Recherche pour analyses uranium-thorium H/F

Secteur d'activité : Recherche

Employeur : CNRS

 Localisation : GIF SUR YVETTE

Description :

Le post-doctorat d'une durée de un an se fera dans le cadre de l'ANR ApART coordonnée par Hélène Valladas.
La mission principale sera le développement et la mise en oeuvre de l'analyse uranium-thorium sur petits échantillons par spectrométrie de masse (voie liquide et ablation laser) en contact étroit entre le LSCE et l'IPREM.
Il participera aux prélèvements sur le terrain des échantillons carbonatés destinés à la datation, dans un premier temps sur les échantillons de la grotte de Soyons (Ardèche).

Au LSCE, son travail expérimental portera sur la préparation chimique des échantillons. Les solutions préparées seront soit analysées au LSCE (voie liquide, MC-ICPMS), soit à l'IPREM-LCABIE par ablation laser couplée à un HR-ICPMS. En parallèle, une mise au point méthodologique sur l'analyse directe par ablation laser des échantillons de CaCO3 non purifiés sera mené.

Profil :

Référence : UMR8212-EDWPON-001
Type de contrat : CDD Technique/Administratif
Durée du contrat : 12 mois
Date d'embauche prévue : 1 février 2019
Quotité de travail : Temps complet
Rémunération : 2470 brut mensuel
Niveau d'études souhaité : Doctorat
Expérience souhaitée : 1 à 4 années

Géochimiste, physicien, ou géologue de formation, avec expérience dans l'analyse par ablation laser couplée à un ICPMS et la géochronologie

Le candidat, administrativement basé au LSCE (UMR 8212, CEA/CNRS/UVSQ), interviendra, à la fois, dans ce laboratoire et à l'IPREM-LCABIE (UMR 5254, CNRS/Université de Pau et des Pays de l'Adour).

Lien : https://emploi.cnrs.fr/Offres/CDD/UMR8212-EDWPON-001/Default.aspx

Post Doctoral : Research fellow in Economic Geology

Secteur d'activité : recherche

Employeur : KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft

Localisation : Karlsruhe

Description :

We are looking for the Institute of Applied Geosciences, Department of Geochemistry and Economic Geology, starting February, 1st 2019, a
Research Fellow (f/m)
In the Department of Geochemistry and Economic Geology, we focus our research on hydrothermal ore deposits, geochemistry of geothermal systems and environmental mineralogy, and wish to develop strong and visible research in these fields. We offer this new position in order to strengthen the research on ore deposits. A preference will be given to individuals, who follow a mineralogical approach in their research and developed expertise in microscopy and X-ray techniques (XRD, XRF) or alternatively, who have expertise in the application of conventional stable isotope techniques to economic geology.
Your tasks are:
• to conduct research, either in the field of “hydrothermal ore deposits” or alternatively, in the field of “industrial minerals”;
• to publish in international peer-reviewed journals and present research results at scientific meetings;
• teaching undergraduate and graduate courses (in German after 2 years);
• to develop an own research portfolio and research group with PhD, Master and undergraduate students within the geochemistry and economic geology group;
• to generate multidisciplinary collaborations nationally and internationally and to apply for research grants from public funds and industry.

Profil :

The following qualifications are required seeking your consideration for this position.
• MSc and PhD degree (or equivalent) in geosciences with a focus on economic geology with research interests in hydrothermal processes in the continental crust or in industrial minerals;
• proven track record in producing high quality publications;
• capacity for interdisciplinary and international teamwork and excellent communication skills.
Applications should include a letter of motivation and the usual documents (CV, complete publication list, information on external funding, academic achievements and honours). Contract duration of the full position is limited to three years and can be extended for three more years. The salary corresponds to the E13 level of the wage agreement of the German civil service (TV-L).
We offer an attractive and modern workplace with access to excellent facilities of KIT, diverse and responsible tasks, a wide scope of advanced training options, supplementary pension with the VBL (Pension Authority for Employees in the Public Service Sector), flexible working time models, a job ticket (BW) allowance, and a cafeteria/canteen.

We prefer to balance the number of female and male employees. Therefore we kindly ask female applicants to apply for this job.
If qualified, handicapped applicants will be preferred.

Please apply online (http://www.pse.kit.edu/job/1054/2018) until December 15th 2018 using the vacancy number 1054/2018. Personnel support is provided by Frau Brückner, Personalservice, Karlsruhe Institute of Technology (KIT), Campus Süd, Kaiserstraße 12, 76131 Karlsruhe. For further information, please contact Prof. Dr. Jochen Kolb, Tel.: +49 (0)721/608-47356.
Further details can be found on our website: www.kit.edu.

Post-Doctoral : H/F Microbiologie-Geomicrobiologie-Geologue

Secteur d'activité :

Employeur : CNRS

Localisation :

Description :

Référence : UMR7564-FREJOR-003
Lieu de travail : VILLERS LES NANCY
Date de publication : jeudi 15 novembre 2018
Type de contrat : CDD Scientifique
Durée du contrat : 18 mois
Date d'embauche prévue : 14 janvier 2019
Quotité de travail : Temps complet
Rémunération : Entre 2550 et 3542 € bruts mensuels selon expérience
Niveau d'études souhaité : Doctorat
Expérience souhaitée : 1 à 4 années

Intitulé complet du projet de recherche :
"Impacts de l'activité microbienne hydrogénotrophe sous haute-pression et en conditions salines sur la consommation d'H2 et la composition des gaz dans un contexte de stockage souterrain"
Le candidat devra évaluer l'effet de l'activité bactérienne sur la consommation de l'H2 présent aux interfaces eau saline-gaz jusqu'à 100 kbar de pression et sous des températures modérées à hautes (20 °C – 60 °C) en conditions salines ou non.

- Mise en place d'une démarche expérimentale pour évaluer la vitesse de consommation de l'H2 par des microorganismes mésophiles et thermophiles modérés (20-60°C) sous hautes pressions (100 kbar max);
- cultures et suivie de la croissance de bactéries anaérobies hydrogénotrophes (e.g. bactéries ferriréductrices ou sulfato réductrices à respiration obligatoire);
- gestion d'autoclaves hautes pression en présence d'H2 (disponibles au laboratoire).
- suivi analytique des gaz (en particulier H2), des métabolites et substrats associés à la respiration,
- caractérisation des solides à base de Fe et de S
- publication d'articles et communications des résultats en équipe et réunions de projets
Taches secondaires :
o Co-encadrement d'étudiants stagiaire (M1, M2) ;
o Suivi des commandes ;
o Participation aux activités scientifiques du laboratoire et de l'équipe

Profil :

Le candidat ou la candidate devra avoir des connaissances solides en géomicrobiologie et/ou en bio-géosciences en particulier sur les bactéries sulfatoréductrices et/ou ferriréductrices, et/ou en analyse minéralogique (caractérisation des solides du fer et du soufre). Une expérience dans des activités multidisciplinaires est un plus, de même que des connaissances en manipulation de réacteurs hautes-pression, et le développement de biofilms en milieux poreux.
Le ou la candidat(e) devra posséder un diplôme de doctorat et être capable de communiquer en anglais (oralement et à l'écrit). La maitrise du français est préférable et appréciée mais n'est pas exigée.

Le(la) candidat(e) sera rattaché(e) à l'équipe de Microbiologie environnementale (MIC, 26 personnes dont 14 permanents, animée par le Pr, Dr C. Gantzer) du LCPME (env. 80 personnes, 3 équipes).
Il/elle travaillera en collaboration étroite avec le laboratoire Géoressources où il(elle) sera susceptible d'y mener certaines expérimentations.
Un séjour de 1 à 2 semaines à Grenoble, pour perfectionner la manipulation de l'H2 à haute pression, est à envisager (Pr Laurent TRUCHE).
Ce travail de recherche s'inscrit dans le cadre d'un projet GIS Geodenergies intiulé RosTOCK-H (Risques et Opportunités du STOCKage géologique d'Hydrogène en cavités salines en France et en Europe, Dr Fabrice GOLFIER coordinateur, Laboratoire Georessources, UMR 7359 CNRS-UL). Ce poste est sous la direction de Pr Frédéric JORAND au Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME) à Nancy (France) avec la collaboration de Pr, Laurent TRUCHE à ISTerre (UMR 5275 CNRS-Université Grenoble Alpes).

Informations complémentaires

La ou le candidat(e) devra déposer sa candidature via le système de recrutement du CNRS (emploi.cnrs.fr) en indiquant son CV ainsi qu'une lettre de motivation.
Selon expérience la durée du contrat peut être réduite à 16 mois.

Lien : https://emploi.cnrs.fr/Offres/CDD/UMR7564-FREJOR-003/Default.aspx

Post Doctoral : Graduate Student and Post-doc Opportunities at the University of Hawaii

Secteur d'activité : Recherche

Employeur : University of Hawai

Localisation : Hawai

Description :

#1 - Volcano construction and lithospheric flexure along the
Hawaiian-Emperor hotspot track:

A post-doctoral researcher in seismology is sought to work on projects
involving wide-angle, active-source seismic data collected on arrays of
ocean bottom seismographs, including tomographic analyses for imaging
the crust and upper mantle. The successful applicant will integrate
results and interpretations with those of a companion multi-channel
seismic reflection study led by collaborators at Lamont-Doherty Earth
Observatory.  Skills and experience in active-source seismology are
desired.    Contact Robert Dunn: dunnr@hawaii.edu.  See more details at:
https://sites.google.com/a/hawaii.edu/dunn-geophysical-laboratory/home

  A graduate student interested in geodynamic modeling is sought to
study the the time-dependent growth of the volcanic loads and resulting
mechanical response of the oceanic lithosphere.  This student will the
incorporate seismic results with computer simulations of lithospheric
flexing under the load of the volcanoes to address issues related to
geomagnetic observations as well as lithosphere rheology.  Applicants
should have a strong background in math and physics; experience in
computer modeling and programming is desirable. Contact Garrett Ito
gito@hawaii.edu & Paul Wessel pwessel@hawaii.edu.

#2 - Absolute plate motion over moving hotspots:

A graduate student is sought to work on new methodologies to constrain
absolute plate motion (APM) models, using a variety of geophysical data,
and investigate the range of plume motion and true polar wander allowed
by current data.  Applicants should have good preparation in math and
physics; experience in computer programming and data analysis is
desirable. Contact Paul Wessel pwessel@hawaii.edu. Apply via:
http://www.soest.hawaii.edu/GG/admissions/gg_admissions.html

#3 - Tectonic reorganizations of the North Atlantic south of Iceland:

A graduate student is sought who is interested in participating on a
marine geophysical research cruise in Summer 2019 and working on
magnetic anomaly, gravity and multibeam data to understand the tectonic
evolution of the seafloor spreading system south of Iceland (the
Reykjanes Ridge). A focus will be on how transform faults and other
ridge axis discontinuities form, evolve and are eliminated. Applicants
should have a good understanding of plate tectonic theory and background
in math and physics; experience in computer programming is desirable.
Contact Fernando Martinez: fernando@hawaii.edu.

Prospective students should apply via:
http://www.soest.hawaii.edu/GG/admissions/gg_admissions.html

Post-Doctoral : Modelling of Cohesive Granular Flows

Secteur d'activité : Recherche et enseignement

Employeur : Sorbonne université

Localisation : Paris

Description :

Granular matter is important in a wide variety of engineering and industrial applications, as well as for the mitigation of catastrophic geophysical flows. Although our understanding of this class of material has steadily improved in the last twenty years, many open questions remain. Thebehaviour and rheology of cohesive granular systems forms one of them. Cohesion between rigid macroscopic grains occurs commonly in the presence of humidity (capillary bonds), when the size of the grains becomes critically small (van der Walls forces, for instance in most powders), or may be intrinsic to the system studied (as is snow and ice avalanches, or for material subject to lectrostatic/magnetic forces). Cohesive contacts in a granular system induce the emergence of intermediate length scales controlling the co-existence of flowing and rigid zones. The way the “flowability” of the system is affected, and the translation in terms of a modified rheological model for cohesive granular flows, is unclear in most flow configurations.
The aim of the project is to investigate the flowability/rheology of cohesive flows in two challenging test configurations. A Bagnold flow over a bump, and the collapse of a step, will be both considered.
Discrete (Contact Dynamics) and continuum (Basilisk) numerical simulations tools will be applied to explore the flow characteristics and test rheological models.
The position will take place in the granular team within the FCIH group in Institut D’Alembert to work with Pierre-Yves Lagrée, Lydie Staron, Stéphanie Deboeuf and Stéphane Popinet, in the framework of the ANR Coprint on Cohesive Powders (PI Maxime Nicolas). As such, it will benefit from interactions with the granular team in IUSTI (Marseille) and with Saint Gobain-CREE. Interactions with the University of Twente will be funded by an existing Van Gogh grant.

Profil :

The ideal candidate will demonstrate experience/knowledge in fluid mechanics, particulate systems and numerical modelling. Application should be sent to P-Y. Lagrée (pierre-yves.lagree@upmc.fr)
and L. Staron (lydie.staron@upmc.fr), including a detailed CV. Closure date for application is 31st December 2018.

Télécharger le détail

Post-Doctoral : Tectonics / Structural Geology

Secteur d'activité :

Employeur : IPGP

Localisation : Paris

Description :

The Institut de Physique du Globe de Paris has an opening for a post-doctoral position to carry out research in tectonics and structural geology. The project (PI: Martine Simoes) is funded by the Agence Nationale de la Recherche (ANR) to assess active deformation and seismic hazards in slowly deforming orogens, by quantifying deformation over various timescales, from long-term geological deformation down in time to short-term processes at the scale of the seismic cycle. The Western Kunlun mountain range (China) will be considered as a case example.
The post-doctoral fellow will take an active role in the quantification of deformation across this mountain range and its foreland basin (the Tarim Basin) over the long-term, i.e. over several Myr to 10s Myr. The objectives of this work will be to assess active structures, their contribution to cumulative shortening, the overall shortening rate to be accommodated across the mountain range and the eventual evolution over time of these parameters. To complete this task, the postdoctoral fellow will take advantage of the extensive and unique compilation of geological observations, maps and seismic profiles that our group has recently compiled at the regional scale. Depending on the obtaining of permits, he/she will also participate to data acquisition in the field. Based on these data, he/she will build balanced cross-sections and will make an efficient use of the exceptional sedimentary archives to define the timing of faults from growth strata, their cumulative shortening and will from there incrementally restore the evolution of deformation. The acquired knowledge on the long-term kinematics of deformation will also be used to quantify a first-order thermal structure of the mountain range and its foreland basin.

The candidate will benefit from various interactions and collaborations within the Tectonics group of the Institut de Physique du Globe de Paris and elsewhere to additionally propose and
develop his/her own line of research. The post-doctoral fellow will present his/her scientific results in international meetings, and write scientific papers to be published in peer-reviewed international journals.

Profil :

Duration / Salary
This Post-Doctoral position is proposed for a duration of 24 months, to be started as early as September 2019 and at latest by January 2020. Net salary will depend on previous experience
of the candidate, and will average ~25 k€/year.

Application
The candidates should have completed a PhD degree in tectonics or structural geology, with experience in building and restoring geological cross-sections. The applicants are expected to send their curriculum and a brief summary of their past research experience and scientific results to Laurie Barrier (barrier@ipgp.fr) and Martine Simoes (simoes@ipgp.fr).
The names and contact information of two (or more) referees will also be provided. Applications are open and will be considered upon reception as long as the position is vacant.
For further information on the position and/or on the project:
Laurie Barrier: barrier@ipgp.fr - (+33)(0)1 83 95 76 08
Martine Simoes : simoes@ipgp.fr - (+33)(0)1 83 95 76 26