L Beck
Datos Biográficos
| ID | 3870508 |
|---|---|
| NOMBRE | L Beck |
| NOMBRES | L |
| APELLIDO | Beck |
| FIRMA | BECK L |
| AFILIACIONES | Centre National de la Recherche Scientifique |
| ORCID | 0000-0003-4005-0937 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 19 |
| TOTAL DE CITAS | 69 |
| TOTAL COMO AUTOR | 19 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1946 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 4 |
Tracing the origin of organic matter in river deltas using the dual isotopic composition of carbon (δ 13 C and Δ 14 C)
River deltas play a crucial role in the global carbon cycle, acting both as significant carbon sinks and as sources of CO2 to the atmosphere. The Rhône River delta is a key site for studying these processes due to its high sedimentation rates and its unique radiocarbon signatures influenced by anthropogenic activities. This study compiles over 10 years of research to assess the sources and fate of organic matter (OM) in the Rhône River delta, usi…
Tracing the 14 C bomb peak in Pierre Soulages’ artworks to improve radiocarbon dating of 20th century paintings
Flax plays an important role in art, especially for painters. Flax seeds are ground into linseed oil, which is used as binder for oil paints, and fibers are used to make linen canvas as a support for paintings. Because of the rapid growth of flax, linen canvas fiber and linseed oil are considered good candidates for the radiocarbon ( 14 C) dating of paintings. However, the time necessary to transform flax into a linen canvas must be estimated in …
C Preparation Protocols for Archaeological Samples at the Lmc14, Saclay, France
The Laboratoire de Mesure du Carbone 14 (LMC14) has operated a radiocarbon dating laboratory for almost twenty years with ARTEMIS, the Accelerator Mass Spectrometer (AMS) based on a NEC 9SDH-2 Pelletron tandem accelerator. A first status report describing the chemical pretreatment methods was published in 2017 (Dumoulin et al. 2017). This article summarizes updates of the routine procedures and presents new protocols. The quality checks in place …
Development of a 14 C Protocol at the Lmc14 for the Dating of Cultural Heritage Materials
The absolute dating of mortar by accelerator mass spectrometry (AMS) has been the subject of renewed interest for several years. International intercomparison campaigns, called MODIS (MOrtar Dating Intercomparison Study), have been carried out. The first MODIS-1 campaign highlighted limitations in mortar dating, due to the similarity between the primary material to be dated (binder) and the contaminant (exogenous CaCO 3 ). Methods have since emer…
How the Incorporation of 14 C in Lead White Makes Its Absolute Dating Possible
Known as lead white, lead carbonates were used as white pigment or cosmetics from the 4th century BC to the 20th century AD. Lead white was produced by the corrosion of metallic lead by vinegar and horse manure up to the 19th c. In order to document the incorporation of carbon in the corrosion mechanism, lead carbonates were produced in the laboratory under monitored experimental conditions using materials with different isotope signatures in 14 …
Years of Ams 14 C Dating Using the Artemis Facility at the Lmc14 National Laboratory
In 2001, five French public organizations (CNRS, CEA, IRD, IRSN, and the Ministère de la Culture) signed an agreement to purchase a new accelerator mass spectrometer to provide radiocarbon dating services at the national level. The Laboratoire de Mesure du Carbone 14 (LMC14) was set up in Saclay (France) around ARTEMIS, an AMS system based on a 3MV Pelletron from NEC and installed in early 2003. In 2015, the LMC14 joined the Laboratoire des Scien…
Géoarchéologie en contexte karstique dans la Maiella (Abruzzes, Italie)
Extension des recherches archéologiques de Valle Giumentina à l’ensemble de la Maiella Le programme de recherche mené à Valle Giumentina depuis 2012 a ouvert la voie à de nouvelles et fructueuses enquêtes archéologiques dans le Parc national de la Maiella (PNM), dont l’ampleur et la réalisation concrète n’auraient pu être anticipées au début du projet sur ce gisement préhistorique. En 2021, le PNM a obtenu le label Geopark Unesco, mettant ainsi e…
Centuries of lead white manufacturing processes identified by 13C and 14C carbon isotopes
Standardization procedure to provide a unified multi-method elemental compositional dataset, application to ferruginous colouring matters from Namibia
Curation of archaeological materials often leads to carrying out multi-analytical methodologies that combine non-invasive and invasive elemental analyses. Such materials are often analysed with different techniques. It results in the production of complementary but apparently non-compatible compositional datasets that cannot be easily compared. In the present paper, we propose to compare results acquired on geological ferruginous colouring matter…
Identification in Pore Waters of Recycled Sediment Organic Matter Using the Dual Isotopic Composition of Carbon ( Δ 13 C and Δ 14 C)
Estuaries and deltas are crucial zones to better understand the interactions between continents and oceans, and to characterize the mineralization and burial of different sources of organic matter (OM) and their effect on the carbon cycle. In the present study, we focus on the continental shelf of the northwest Mediterranean Sea near the Rhône river delta. Sediment cores were collected and pore waters were sampled at different depths at one stati…
Marine Reservoir Effect of Spermaceti, a Wax Obtained From the Head of the Sperm Whale
Spermaceti is a waxy substance found in the head cavities of sperm whales ( Physeter macrocephalus and P. catodon ). This substance had a variety of commercial applications from the end of the 18th to the beginning of the 20th century, such as candles, soap, cosmetics and other compounds. Spermaceti was also occasionally used as wax for modeling sculptures. In order to date such artworks the marine reservoir effect (MRE) has to be considered. The…
New Chronometric Insights Into Ancient Egyptian Musical Instruments Held at the Musée Du Louvre and the Musée Des Beaux-Arts De Lyon
Very little is known about the manufacturing and use of ancient Egyptian instruments, and their discovery is very rare. An extensive radiocarbon ( 14 C) dating program has been conducted on 25 ancient Egyptian musical instruments currently held at the Louvre Museum ( musée du Louvre ) and the Lyon Museum of Fine Arts ( musée des Beaux-Arts de Lyon ). This study includes cordophones (harps, lyres, lutes), membranophones (drums, tambourines), idiop…
Isotopic Signature (δ 13 C, ∆ 14 C) of DIC in Sediment Pore Waters
A better understanding of the dynamics of different particulate organic matter (OM) pools in the coastal carbon budget is a key issue for quantifying the role of the coastal ocean in the global carbon cycle. To elucidate the benthic component of this carbon cycle at the land-sea interface, we investigated the carbon isotope signatures (δ 13 C and ∆ 14 C) in the sediment pore waters dissolved inorganic carbon (DIC) in addition to the sediment OM t…
Comparison of Two Bone-Preparation Methods for Radiocarbon Dating
In this paper, first results comparing modified Longin and ninhydrin collagen extraction methodologies are presented. The goal of this study is to investigate the bones of several species with different ages, preservation conditions, and collagen contents to determine the most suitable preparation method. Different types of samples are used such as VIRI samples, previously dated bones, and background samples. Each bone has undergone elemental ana…
Status Report on Sample Preparation Protocols Developed at the LMC14 Laboratory, Saclay, France
The main objective of this report is to present the dating process routinely applied to different types of samples at the Laboratoire de Mesure du Carbone 14 (LMC14). All the results and protocols refer to our procedures over the last 5 years. A description of the sorting and chemical pretreatments of the samples as well as the extraction and graphitization of CO 2 are reported. Our last study concerning the degradation of the blank level accordi…
Analyse in situ des dessins préhistoriques de la grotte de Rouffignac par fluorescence X et diffraction X portable
La Grotte de Rouffignac (Dordogne, France) est un site d'art paléolithique qui renferme de nombreux dessins réalisés au trait noir (mammouths, bisons, rhinocéros laineux, chevaux, bouquetins...). Bien qu'aucune datation directe n'ait été réalisée à ce jour, les œuvres graphiques de cette caverne sont en général rattachées au Magdalénien
Selection and Heating of Colouring Materials in the Mousterian Level of Es‐skhul ( C . 100 000 Years Bp, Mount Carmel, Israel)
The transformation of yellow goethite into red hematite by heating has long been assumed for Palaeolithic red artefacts excavated close to fireplaces. However, this transformation is extremely rare. Using SEM–FEG–EDX, PIXE–PIGE, TEM and μXRD, we characterized the mineralogical and chemical compositions of four microsamples of colouring materials from the Mousterian layer B in the es‐Skhul rock‐shelter, from about 100 kya ago. For some colouring m…
Brokering Democracy in Africa
Unwritten Treaty
Selection and Heating of Colouring Materials in the Mousterian Level of Es‐skhul ( C . 100 000 Years Bp, Mount Carmel, Israel)
The transformation of yellow goethite into red hematite by heating has long been assumed for Palaeolithic red artefacts excavated close to fireplaces. However, this transformation is extremely rare. Using SEM–FEG–EDX, PIXE–PIGE, TEM and μXRD, we characterized the mineralogical and chemical compositions of four microsamples of colouring materials from the Mousterian layer B in the es‐Skhul rock‐shelter, from about 100 kya ago. For some colouring m…
Status Report on Sample Preparation Protocols Developed at the LMC14 Laboratory, Saclay, France
The main objective of this report is to present the dating process routinely applied to different types of samples at the Laboratoire de Mesure du Carbone 14 (LMC14). All the results and protocols refer to our procedures over the last 5 years. A description of the sorting and chemical pretreatments of the samples as well as the extraction and graphitization of CO 2 are reported. Our last study concerning the degradation of the blank level accordi…
Analyse in situ des dessins préhistoriques de la grotte de Rouffignac par fluorescence X et diffraction X portable
La Grotte de Rouffignac (Dordogne, France) est un site d'art paléolithique qui renferme de nombreux dessins réalisés au trait noir (mammouths, bisons, rhinocéros laineux, chevaux, bouquetins...). Bien qu'aucune datation directe n'ait été réalisée à ce jour, les œuvres graphiques de cette caverne sont en général rattachées au Magdalénien
Years of Ams 14 C Dating Using the Artemis Facility at the Lmc14 National Laboratory
In 2001, five French public organizations (CNRS, CEA, IRD, IRSN, and the Ministère de la Culture) signed an agreement to purchase a new accelerator mass spectrometer to provide radiocarbon dating services at the national level. The Laboratoire de Mesure du Carbone 14 (LMC14) was set up in Saclay (France) around ARTEMIS, an AMS system based on a 3MV Pelletron from NEC and installed in early 2003. In 2015, the LMC14 joined the Laboratoire des Scien…
Centuries of lead white manufacturing processes identified by 13C and 14C carbon isotopes
Isotopic Signature (δ 13 C, ∆ 14 C) of DIC in Sediment Pore Waters
A better understanding of the dynamics of different particulate organic matter (OM) pools in the coastal carbon budget is a key issue for quantifying the role of the coastal ocean in the global carbon cycle. To elucidate the benthic component of this carbon cycle at the land-sea interface, we investigated the carbon isotope signatures (δ 13 C and ∆ 14 C) in the sediment pore waters dissolved inorganic carbon (DIC) in addition to the sediment OM t…
Comparison of Two Bone-Preparation Methods for Radiocarbon Dating
In this paper, first results comparing modified Longin and ninhydrin collagen extraction methodologies are presented. The goal of this study is to investigate the bones of several species with different ages, preservation conditions, and collagen contents to determine the most suitable preparation method. Different types of samples are used such as VIRI samples, previously dated bones, and background samples. Each bone has undergone elemental ana…
C Preparation Protocols for Archaeological Samples at the Lmc14, Saclay, France
The Laboratoire de Mesure du Carbone 14 (LMC14) has operated a radiocarbon dating laboratory for almost twenty years with ARTEMIS, the Accelerator Mass Spectrometer (AMS) based on a NEC 9SDH-2 Pelletron tandem accelerator. A first status report describing the chemical pretreatment methods was published in 2017 (Dumoulin et al. 2017). This article summarizes updates of the routine procedures and presents new protocols. The quality checks in place …
How the Incorporation of 14 C in Lead White Makes Its Absolute Dating Possible
Known as lead white, lead carbonates were used as white pigment or cosmetics from the 4th century BC to the 20th century AD. Lead white was produced by the corrosion of metallic lead by vinegar and horse manure up to the 19th c. In order to document the incorporation of carbon in the corrosion mechanism, lead carbonates were produced in the laboratory under monitored experimental conditions using materials with different isotope signatures in 14 …
Standardization procedure to provide a unified multi-method elemental compositional dataset, application to ferruginous colouring matters from Namibia
Curation of archaeological materials often leads to carrying out multi-analytical methodologies that combine non-invasive and invasive elemental analyses. Such materials are often analysed with different techniques. It results in the production of complementary but apparently non-compatible compositional datasets that cannot be easily compared. In the present paper, we propose to compare results acquired on geological ferruginous colouring matter…
Marine Reservoir Effect of Spermaceti, a Wax Obtained From the Head of the Sperm Whale
Spermaceti is a waxy substance found in the head cavities of sperm whales ( Physeter macrocephalus and P. catodon ). This substance had a variety of commercial applications from the end of the 18th to the beginning of the 20th century, such as candles, soap, cosmetics and other compounds. Spermaceti was also occasionally used as wax for modeling sculptures. In order to date such artworks the marine reservoir effect (MRE) has to be considered. The…
New Chronometric Insights Into Ancient Egyptian Musical Instruments Held at the Musée Du Louvre and the Musée Des Beaux-Arts De Lyon
Very little is known about the manufacturing and use of ancient Egyptian instruments, and their discovery is very rare. An extensive radiocarbon ( 14 C) dating program has been conducted on 25 ancient Egyptian musical instruments currently held at the Louvre Museum ( musée du Louvre ) and the Lyon Museum of Fine Arts ( musée des Beaux-Arts de Lyon ). This study includes cordophones (harps, lyres, lutes), membranophones (drums, tambourines), idiop…
Unwritten Treaty
Brokering Democracy in Africa
Analyse in situ des dessins préhistoriques de la grotte de Rouffignac par fluorescence X et diffraction X portable
La Grotte de Rouffignac (Dordogne, France) est un site d'art paléolithique qui renferme de nombreux dessins réalisés au trait noir (mammouths, bisons, rhinocéros laineux, chevaux, bouquetins...). Bien qu'aucune datation directe n'ait été réalisée à ce jour, les œuvres graphiques de cette caverne sont en général rattachées au Magdalénien
Selection and Heating of Colouring Materials in the Mousterian Level of Es‐skhul ( C . 100 000 Years Bp, Mount Carmel, Israel)
The transformation of yellow goethite into red hematite by heating has long been assumed for Palaeolithic red artefacts excavated close to fireplaces. However, this transformation is extremely rare. Using SEM–FEG–EDX, PIXE–PIGE, TEM and μXRD, we characterized the mineralogical and chemical compositions of four microsamples of colouring materials from the Mousterian layer B in the es‐Skhul rock‐shelter, from about 100 kya ago. For some colouring m…
Comparison of Two Bone-Preparation Methods for Radiocarbon Dating
In this paper, first results comparing modified Longin and ninhydrin collagen extraction methodologies are presented. The goal of this study is to investigate the bones of several species with different ages, preservation conditions, and collagen contents to determine the most suitable preparation method. Different types of samples are used such as VIRI samples, previously dated bones, and background samples. Each bone has undergone elemental ana…
Status Report on Sample Preparation Protocols Developed at the LMC14 Laboratory, Saclay, France
The main objective of this report is to present the dating process routinely applied to different types of samples at the Laboratoire de Mesure du Carbone 14 (LMC14). All the results and protocols refer to our procedures over the last 5 years. A description of the sorting and chemical pretreatments of the samples as well as the extraction and graphitization of CO 2 are reported. Our last study concerning the degradation of the blank level accordi…
Isotopic Signature (δ 13 C, ∆ 14 C) of DIC in Sediment Pore Waters
A better understanding of the dynamics of different particulate organic matter (OM) pools in the coastal carbon budget is a key issue for quantifying the role of the coastal ocean in the global carbon cycle. To elucidate the benthic component of this carbon cycle at the land-sea interface, we investigated the carbon isotope signatures (δ 13 C and ∆ 14 C) in the sediment pore waters dissolved inorganic carbon (DIC) in addition to the sediment OM t…
New Chronometric Insights Into Ancient Egyptian Musical Instruments Held at the Musée Du Louvre and the Musée Des Beaux-Arts De Lyon
Very little is known about the manufacturing and use of ancient Egyptian instruments, and their discovery is very rare. An extensive radiocarbon ( 14 C) dating program has been conducted on 25 ancient Egyptian musical instruments currently held at the Louvre Museum ( musée du Louvre ) and the Lyon Museum of Fine Arts ( musée des Beaux-Arts de Lyon ). This study includes cordophones (harps, lyres, lutes), membranophones (drums, tambourines), idiop…
Géoarchéologie en contexte karstique dans la Maiella (Abruzzes, Italie)
Extension des recherches archéologiques de Valle Giumentina à l’ensemble de la Maiella Le programme de recherche mené à Valle Giumentina depuis 2012 a ouvert la voie à de nouvelles et fructueuses enquêtes archéologiques dans le Parc national de la Maiella (PNM), dont l’ampleur et la réalisation concrète n’auraient pu être anticipées au début du projet sur ce gisement préhistorique. En 2021, le PNM a obtenu le label Geopark Unesco, mettant ainsi e…
Centuries of lead white manufacturing processes identified by 13C and 14C carbon isotopes
Standardization procedure to provide a unified multi-method elemental compositional dataset, application to ferruginous colouring matters from Namibia
Curation of archaeological materials often leads to carrying out multi-analytical methodologies that combine non-invasive and invasive elemental analyses. Such materials are often analysed with different techniques. It results in the production of complementary but apparently non-compatible compositional datasets that cannot be easily compared. In the present paper, we propose to compare results acquired on geological ferruginous colouring matter…
Identification in Pore Waters of Recycled Sediment Organic Matter Using the Dual Isotopic Composition of Carbon ( Δ 13 C and Δ 14 C)
Estuaries and deltas are crucial zones to better understand the interactions between continents and oceans, and to characterize the mineralization and burial of different sources of organic matter (OM) and their effect on the carbon cycle. In the present study, we focus on the continental shelf of the northwest Mediterranean Sea near the Rhône river delta. Sediment cores were collected and pore waters were sampled at different depths at one stati…
Marine Reservoir Effect of Spermaceti, a Wax Obtained From the Head of the Sperm Whale
Spermaceti is a waxy substance found in the head cavities of sperm whales ( Physeter macrocephalus and P. catodon ). This substance had a variety of commercial applications from the end of the 18th to the beginning of the 20th century, such as candles, soap, cosmetics and other compounds. Spermaceti was also occasionally used as wax for modeling sculptures. In order to date such artworks the marine reservoir effect (MRE) has to be considered. The…
Years of Ams 14 C Dating Using the Artemis Facility at the Lmc14 National Laboratory
In 2001, five French public organizations (CNRS, CEA, IRD, IRSN, and the Ministère de la Culture) signed an agreement to purchase a new accelerator mass spectrometer to provide radiocarbon dating services at the national level. The Laboratoire de Mesure du Carbone 14 (LMC14) was set up in Saclay (France) around ARTEMIS, an AMS system based on a 3MV Pelletron from NEC and installed in early 2003. In 2015, the LMC14 joined the Laboratoire des Scien…
C Preparation Protocols for Archaeological Samples at the Lmc14, Saclay, France
The Laboratoire de Mesure du Carbone 14 (LMC14) has operated a radiocarbon dating laboratory for almost twenty years with ARTEMIS, the Accelerator Mass Spectrometer (AMS) based on a NEC 9SDH-2 Pelletron tandem accelerator. A first status report describing the chemical pretreatment methods was published in 2017 (Dumoulin et al. 2017). This article summarizes updates of the routine procedures and presents new protocols. The quality checks in place …
Development of a 14 C Protocol at the Lmc14 for the Dating of Cultural Heritage Materials
The absolute dating of mortar by accelerator mass spectrometry (AMS) has been the subject of renewed interest for several years. International intercomparison campaigns, called MODIS (MOrtar Dating Intercomparison Study), have been carried out. The first MODIS-1 campaign highlighted limitations in mortar dating, due to the similarity between the primary material to be dated (binder) and the contaminant (exogenous CaCO 3 ). Methods have since emer…
How the Incorporation of 14 C in Lead White Makes Its Absolute Dating Possible
Known as lead white, lead carbonates were used as white pigment or cosmetics from the 4th century BC to the 20th century AD. Lead white was produced by the corrosion of metallic lead by vinegar and horse manure up to the 19th c. In order to document the incorporation of carbon in the corrosion mechanism, lead carbonates were produced in the laboratory under monitored experimental conditions using materials with different isotope signatures in 14 …
Tracing the 14 C bomb peak in Pierre Soulages’ artworks to improve radiocarbon dating of 20th century paintings
Flax plays an important role in art, especially for painters. Flax seeds are ground into linseed oil, which is used as binder for oil paints, and fibers are used to make linen canvas as a support for paintings. Because of the rapid growth of flax, linen canvas fiber and linseed oil are considered good candidates for the radiocarbon ( 14 C) dating of paintings. However, the time necessary to transform flax into a linen canvas must be estimated in …
Tracing the origin of organic matter in river deltas using the dual isotopic composition of carbon (δ 13 C and Δ 14 C)
River deltas play a crucial role in the global carbon cycle, acting both as significant carbon sinks and as sources of CO2 to the atmosphere. The Rhône River delta is a key site for studying these processes due to its high sedimentation rates and its unique radiocarbon signatures influenced by anthropogenic activities. This study compiles over 10 years of research to assess the sources and fate of organic matter (OM) in the Rhône River delta, usi…
Archaeology and ancient environmental studies (10 obras) · Chemistry (9 obras) · Cultural Heritage Materials Analysis (8 obras) · Geology (8 obras) · Archaeology (7 obras) · Radiocarbon dating (7 obras) · Accelerator mass spectrometry (5 obras) · Art (5 obras) · Mineralogy (5 obras) · Oceanography (5 obras)