- home
- Advanced Search
- NEANIAS Atmospheric Research Community
- Publications
- Other literature type
- AM
- HAL-Pasteur
- NEANIAS Atmospheric Research Community
- Publications
- Other literature type
- AM
- HAL-Pasteur
Loading
description Publicationkeyboard_double_arrow_right Other literature type , Article 2018 FrancePublisher:Wiley Funded by:EC | RHEOLITHEC| RHEOLITHValentin Laurent; Pierre Lanari; Inès Naïr; Romain Augier; Abdeltif Lahfid; Laurent Jolivet;AbstractHigh‐P rocks such as eclogite and blueschist are metamorphic markers of palaeo‐subduction zones, and their formation at high‐P and low‐T (HP–LT) conditions is relatively well understood since it has been the focus of numerous petrological investigations in the past 40 years. The tectonic mechanisms controlling their exhumation back to the surface are, however, diverse, complex and still actively debated. Although the Cycladic Blueschist Unit (CBU, Greece) is among the best worldwide examples for the preservation of eclogite and blueschist, the proposed P–T evolution followed by this unit within the Hellenic subduction zone is quite different from one study to another, hindering the comprehension of exhumation processes. In this study, we present an extensive petrological data set that permits refinement of the shape of the P–T trajectory for different subunits of the CBU on Syros. High‐resolution quantitative compositional mapping has been applied to support the thermobarometric investigations, which involve semi‐empirical thermobarometry, garnet equilibrium modelling and P–T isochemical phase diagrams. The thermodynamic models highlight the powerful use of reactive bulk compositions approximated from local bulk compositions. The results are also combined with Raman spectrometry of carbonaceous material (RSCM) to retrieve the metamorphic peak temperature distribution at the scale of the island. A major result of this study is the good agreement between all the independent thermobarometric methods, permitting reconstruction of the prograde and retrograde P–T trajectories. Garnet compositional zoning was used to retrieve prograde, peak and retrograde growth stages in line with the results of the P–T isochemical phase diagrams, RSCM temperature and peak‐pressure crystallization of the garnet–omphacite–phengite assemblage. Our results are consistent with previous thermobarometric estimates from other occurrences of CBU rocks (Tinos, Andros), suggesting a multistage exhumation process with (1) early syn‐orogenic exhumation within the subduction channel, (2) isobaric heating at mid‐crustal depths (~10–12 kbar) following thermal re‐equilibration of the lithosphere from a cold syn‐orogenic regime in the subduction zone to a warmer post‐orogenic regime in the back‐arc domain and (3) exhumation and cooling related to a post‐orogenic phase of extension following slab retreat. Expanding to the general aspects of subduction zones, we suggest that such metamorphic evolution of HP–LT units should be regarded as a characteristic feature of exhumation driven by slab rollback.
Journal of Metamorph... arrow_drop_down Journal of Metamorphic GeologyArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotArticle . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1111/jmg.12309&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 50 citations 50 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Journal of Metamorph... arrow_drop_down Journal of Metamorphic GeologyArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotArticle . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1111/jmg.12309&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2017 France, Belgium, ItalyPublisher:American Chemical Society (ACS) Publicly fundedChiara Baldacchini; Ana Castanheiro; Nairuhi Maghakyan; Gregorio Sgrigna; Jolien Verhelst; Rocío Alonso; Jorge Humberto Amorim; Patrick Bellan; Danijela Đunisijević Bojović; Jürgen Breuste; Oliver Bühler; Ilie C. Cântar; Paloma Cariñanos; Giulia Carriero; Galina Churkina; Lucian Dinca; Raffaela Esposito; Stanislaw W. Gawronski; Maren Kern; Didier Le Thiec; Marco Moretti; Tine Ningal; Eleni C. Rantzoudi; Iztok Sinjur; Biljana Stojanova; Mira Aničić Urošević; Violeta Velikova; Ivana Živojinović; Lilit Sahakyan; Carlo Calfapietra; Roeland Samson;Abstract: Particulate matter (PM) deposited on Platanus acerifolia tree leaves has been sampled in the urban areas of 28 European cities, over 20 countries, with the aim of testing leaf deposited particles as indicator of atmospheric PM concentration and composition. Leaves have been collected close to streets characterized by heavy traffic and within urban parks. Leaf surface density, dimensions, and elemental composition of leaf deposited particles have been compared with leaf magnetic content, and discussed in connection with air quality data. The PM quantity and size were mainly dependent on the regional background concentration of particles, while the percentage of iron-based particles emerged as a clear marker of traffic-related pollution in most of the sites. This indicates that Platanus acerifolia is highly suitable to be used in atmospheric PM monitoring studies and that morphological and elemental characteristics of leaf deposited particles, joined with the leaf magnetic content, may successfully allow urban PM source apportionment.
Institutional Reposi... arrow_drop_down Institutional Repository Universiteit Antwerpen; Environmental Science & TechnologyOther literature type . Article . 2017Institutional Repository Universiteit AntwerpenArticle . 2017Data sources: Institutional Repository Universiteit Antwerpenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1021/acs.est.6b04052&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 57 citations 57 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!more_vert Institutional Reposi... arrow_drop_down Institutional Repository Universiteit Antwerpen; Environmental Science & TechnologyOther literature type . Article . 2017Institutional Repository Universiteit AntwerpenArticle . 2017Data sources: Institutional Repository Universiteit Antwerpenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1021/acs.est.6b04052&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu
Loading
description Publicationkeyboard_double_arrow_right Other literature type , Article 2018 FrancePublisher:Wiley Funded by:EC | RHEOLITHEC| RHEOLITHValentin Laurent; Pierre Lanari; Inès Naïr; Romain Augier; Abdeltif Lahfid; Laurent Jolivet;AbstractHigh‐P rocks such as eclogite and blueschist are metamorphic markers of palaeo‐subduction zones, and their formation at high‐P and low‐T (HP–LT) conditions is relatively well understood since it has been the focus of numerous petrological investigations in the past 40 years. The tectonic mechanisms controlling their exhumation back to the surface are, however, diverse, complex and still actively debated. Although the Cycladic Blueschist Unit (CBU, Greece) is among the best worldwide examples for the preservation of eclogite and blueschist, the proposed P–T evolution followed by this unit within the Hellenic subduction zone is quite different from one study to another, hindering the comprehension of exhumation processes. In this study, we present an extensive petrological data set that permits refinement of the shape of the P–T trajectory for different subunits of the CBU on Syros. High‐resolution quantitative compositional mapping has been applied to support the thermobarometric investigations, which involve semi‐empirical thermobarometry, garnet equilibrium modelling and P–T isochemical phase diagrams. The thermodynamic models highlight the powerful use of reactive bulk compositions approximated from local bulk compositions. The results are also combined with Raman spectrometry of carbonaceous material (RSCM) to retrieve the metamorphic peak temperature distribution at the scale of the island. A major result of this study is the good agreement between all the independent thermobarometric methods, permitting reconstruction of the prograde and retrograde P–T trajectories. Garnet compositional zoning was used to retrieve prograde, peak and retrograde growth stages in line with the results of the P–T isochemical phase diagrams, RSCM temperature and peak‐pressure crystallization of the garnet–omphacite–phengite assemblage. Our results are consistent with previous thermobarometric estimates from other occurrences of CBU rocks (Tinos, Andros), suggesting a multistage exhumation process with (1) early syn‐orogenic exhumation within the subduction channel, (2) isobaric heating at mid‐crustal depths (~10–12 kbar) following thermal re‐equilibration of the lithosphere from a cold syn‐orogenic regime in the subduction zone to a warmer post‐orogenic regime in the back‐arc domain and (3) exhumation and cooling related to a post‐orogenic phase of extension following slab retreat. Expanding to the general aspects of subduction zones, we suggest that such metamorphic evolution of HP–LT units should be regarded as a characteristic feature of exhumation driven by slab rollback.
Journal of Metamorph... arrow_drop_down Journal of Metamorphic GeologyArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotArticle . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1111/jmg.12309&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 50 citations 50 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Journal of Metamorph... arrow_drop_down Journal of Metamorphic GeologyArticle . 2018 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefHAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotArticle . 2018add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1111/jmg.12309&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2017 France, Belgium, ItalyPublisher:American Chemical Society (ACS) Publicly fundedChiara Baldacchini; Ana Castanheiro; Nairuhi Maghakyan; Gregorio Sgrigna; Jolien Verhelst; Rocío Alonso; Jorge Humberto Amorim; Patrick Bellan; Danijela Đunisijević Bojović; Jürgen Breuste; Oliver Bühler; Ilie C. Cântar; Paloma Cariñanos; Giulia Carriero; Galina Churkina; Lucian Dinca; Raffaela Esposito; Stanislaw W. Gawronski; Maren Kern; Didier Le Thiec; Marco Moretti; Tine Ningal; Eleni C. Rantzoudi; Iztok Sinjur; Biljana Stojanova; Mira Aničić Urošević; Violeta Velikova; Ivana Živojinović; Lilit Sahakyan; Carlo Calfapietra; Roeland Samson;Abstract: Particulate matter (PM) deposited on Platanus acerifolia tree leaves has been sampled in the urban areas of 28 European cities, over 20 countries, with the aim of testing leaf deposited particles as indicator of atmospheric PM concentration and composition. Leaves have been collected close to streets characterized by heavy traffic and within urban parks. Leaf surface density, dimensions, and elemental composition of leaf deposited particles have been compared with leaf magnetic content, and discussed in connection with air quality data. The PM quantity and size were mainly dependent on the regional background concentration of particles, while the percentage of iron-based particles emerged as a clear marker of traffic-related pollution in most of the sites. This indicates that Platanus acerifolia is highly suitable to be used in atmospheric PM monitoring studies and that morphological and elemental characteristics of leaf deposited particles, joined with the leaf magnetic content, may successfully allow urban PM source apportionment.
Institutional Reposi... arrow_drop_down Institutional Repository Universiteit Antwerpen; Environmental Science & TechnologyOther literature type . Article . 2017Institutional Repository Universiteit AntwerpenArticle . 2017Data sources: Institutional Repository Universiteit Antwerpenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1021/acs.est.6b04052&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 57 citations 57 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!more_vert Institutional Reposi... arrow_drop_down Institutional Repository Universiteit Antwerpen; Environmental Science & TechnologyOther literature type . Article . 2017Institutional Repository Universiteit AntwerpenArticle . 2017Data sources: Institutional Repository Universiteit Antwerpenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1021/acs.est.6b04052&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu