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Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science最新文献

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Économie agraire à la fin de l'âge du Bronze sur les bords du lac du Bourget (Savoie, France) 青铜时代末期布尔热湖岸边的农业经济(法国萨沃伊)
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-12-15 DOI: 10.1016/S1251-8050(01)01684-6
Laurent Bouby , Yves Billaud
{"title":"Économie agraire à la fin de l'âge du Bronze sur les bords du lac du Bourget (Savoie, France)","authors":"Laurent Bouby ,&nbsp;Yves Billaud","doi":"10.1016/S1251-8050(01)01684-6","DOIUrl":"10.1016/S1251-8050(01)01684-6","url":null,"abstract":"<div><p>In spite of their suitability, waterlogged Bronze Age settlements of the Alpine area are actually under-investigated for archaeobotany. New investigations in Grésine (Bourget Lake, Savoie) bring new data on farming economy. Food plants include different cereals, oil plants, pulses, and many collected fruits. Various farming practices are documented. The fields seem to be long-term cultivated, autumn and spring sowings probably taking turns with short fallow phases. Grassland communities were exploited and could in part have grown during fallow phases on the cultivated land.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 11","pages":"Pages 749-756"},"PeriodicalIF":0.0,"publicationDate":"2001-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01684-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82514438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Sur les possibilités de reconstitution paléo-environnementale offertes par les andosols des hautes terres tropicales. Exemple des Nilgiri (Inde du Sud) 热带高地的andosols提供的古环境重建的可能性。Nilgiri(南印度)的例子
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-12-15 DOI: 10.1016/S1251-8050(01)01683-4
Laurent Caner , Gérard Bourgeon
{"title":"Sur les possibilités de reconstitution paléo-environnementale offertes par les andosols des hautes terres tropicales. Exemple des Nilgiri (Inde du Sud)","authors":"Laurent Caner ,&nbsp;Gérard Bourgeon","doi":"10.1016/S1251-8050(01)01683-4","DOIUrl":"10.1016/S1251-8050(01)01683-4","url":null,"abstract":"<div><p>An example, from South India, shows the potentialities offered by the study of high altitude non-allophanic andisols to reconstitute the local palaeoenvironmental history. In this type of soils, organic matter is stabilised in the form of organometallic complexes that migrate downwards very slowly. Compared to the broad signal recorded by peat bogs, the soil organic matter signal appears to be more site-specific, which enables precise palaeoenvironmental studies. This application comes just when precise palaeoclimatic reconstitutions are necessary to build reliable climatic models.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 11","pages":"Pages 725-731"},"PeriodicalIF":0.0,"publicationDate":"2001-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01683-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73853809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Structure et contrôle paléogéographique de la zone subandine péruvienne 秘鲁苏班丁带的结构与古地理控制
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-12-15 DOI: 10.1016/S1251-8050(01)01693-7
Willy Gil Rodriguez , Patrice Baby , Jean-François Ballard
{"title":"Structure et contrôle paléogéographique de la zone subandine péruvienne","authors":"Willy Gil Rodriguez ,&nbsp;Patrice Baby ,&nbsp;Jean-François Ballard","doi":"10.1016/S1251-8050(01)01693-7","DOIUrl":"10.1016/S1251-8050(01)01693-7","url":null,"abstract":"<div><p>The north–south structural evolution in the Subandean zone (eastern side of the Central Andes) reflects the complexity of the orogenic front that propagates on an heterogeneous substratum inherited from pre-Andean palaeogeographies. The construction of balanced cross-sections shows that this north–south evolution corresponds to a progressive transformation from thick-skin transpressive deformation to thin-skin compressive deformation. The thrust front propagation is controlled, in the north, by NNE–SSW to north–south rift systems Permo-Triassic to Jurassic in age, oblique to the chain, and in the south, by the relatively isopach series of the preserved Palaeozoic silico-clastic platform.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 11","pages":"Pages 741-748"},"PeriodicalIF":0.0,"publicationDate":"2001-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01693-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89894428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Mineralised versus barren intrusions: a melt inclusion study in Romania's Gold Quadrilateral 矿化与贫瘠侵入体:罗马尼亚黄金四边形的熔体包裹体研究
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-12-15 DOI: 10.1016/S1251-8050(01)01666-4
Luminita Grancea, Michel Cuney, Jacques L Leroy
{"title":"Mineralised versus barren intrusions: a melt inclusion study in Romania's Gold Quadrilateral","authors":"Luminita Grancea,&nbsp;Michel Cuney,&nbsp;Jacques L Leroy","doi":"10.1016/S1251-8050(01)01666-4","DOIUrl":"10.1016/S1251-8050(01)01666-4","url":null,"abstract":"<div><p>Characterization of the genetic relations between magma suites and associated gold/base metal hydrothermal deposits is imperative to our understanding of the role of magmas in the mineralization process. Melt inclusions trapped in igneous phenocrysts were used to characterize calc–alkaline magmas associated with Valea Morii porphyry–copper deposit, Romania. A comparative study of mineralized intrusion versus barren intrusion reveals parameters that may influence the magmatic–hydrothermal connection. The present results emphasize the importance of the chemistry of residual melts (trapped in magmatic inclusions) rather than bulk magma compositions (derived from whole rock analysis) in determining the metal concentration in released magmatic fluid.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 11","pages":"Pages 705-710"},"PeriodicalIF":0.0,"publicationDate":"2001-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01666-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82766371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Bilans de masse des glaciers alpins et scandinaves, leurs relations avec l'oscillation du climat de l'Atlantique nord 高山和斯堪的纳维亚冰川的质量平衡及其与北大西洋气候振荡的关系
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-12-15 DOI: 10.1016/S1251-8050(01)01697-4
Delphine Six , Louis Reynaud , Anne Letréguilly
{"title":"Bilans de masse des glaciers alpins et scandinaves, leurs relations avec l'oscillation du climat de l'Atlantique nord","authors":"Delphine Six ,&nbsp;Louis Reynaud ,&nbsp;Anne Letréguilly","doi":"10.1016/S1251-8050(01)01697-4","DOIUrl":"10.1016/S1251-8050(01)01697-4","url":null,"abstract":"<div><p>This paper considers the relations between the North Atlantic Oscillation, reflecting the climate variation patterns on the North Atlantic region, and mass balance variations of Alpine and Scandinavian glaciers. This study first enhances the mass balance representativeness of climate variations on the massif scale. However, dealing with glaciers in the North and the South of Europe, the mass balance variations are inversely correlated. Analyses comparing the mass balance variations and the NAO index show that annual trends between these two components are really poor, but at the decadal scale, the two signals are well correlated.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 11","pages":"Pages 693-698"},"PeriodicalIF":0.0,"publicationDate":"2001-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01697-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77825541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 53
Caractérisation isotopique des pluies en Tunisie. Essai de typologie dans la région de Sfax 突尼斯降雨的同位素特征。斯法克斯地区的类型学测试
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-11-30 DOI: 10.1016/S1251-8050(01)01671-8
Hélène Celle-Jeanton , Kamel Zouari , Yves Travi , Abdelkarim Daoud
{"title":"Caractérisation isotopique des pluies en Tunisie. Essai de typologie dans la région de Sfax","authors":"Hélène Celle-Jeanton ,&nbsp;Kamel Zouari ,&nbsp;Yves Travi ,&nbsp;Abdelkarim Daoud","doi":"10.1016/S1251-8050(01)01671-8","DOIUrl":"https://doi.org/10.1016/S1251-8050(01)01671-8","url":null,"abstract":"<div><p>This paper determines the isotopic signature of monthly precipitation in Tunisia and highlights the main influence of air mass origin and temperature. On an event basis, this impact is confirmed and two groups can be distinguished at Sfax: (<em>i</em>) rain coming from Atlantic air masses that circulate in northern Africa (group I), (<em>ii</em>) precipitation due to atmospheric circulation on the Mediterranean Sea (group II). Mediterranean rains are enriched in oxygen-18 (−4.1 ‰), whereas the Atlantic ones show a more depleted value (−6.7 ‰). These specific signatures will be useful for groundwater tracing.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 10","pages":"Pages 625-631"},"PeriodicalIF":0.0,"publicationDate":"2001-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01671-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91721241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 81
Bilans hydrologique et isotopiques (18O et 2H) du lac Massoko, Tanzanie. Quantification des échanges lac–eaux souterraines 坦桑尼亚马索科湖的水文和同位素平衡(18O和2H)。湖泊-地下水交换的量化
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-11-30 DOI: 10.1016/S1251-8050(01)01672-X
Laurent Bergonzini , Élisabeth Gibert , Anne Winckel , Ouassila Merdaci
{"title":"Bilans hydrologique et isotopiques (18O et 2H) du lac Massoko, Tanzanie. Quantification des échanges lac–eaux souterraines","authors":"Laurent Bergonzini ,&nbsp;Élisabeth Gibert ,&nbsp;Anne Winckel ,&nbsp;Ouassila Merdaci","doi":"10.1016/S1251-8050(01)01672-X","DOIUrl":"https://doi.org/10.1016/S1251-8050(01)01672-X","url":null,"abstract":"<div><p>This paper deals with the study of Lake Massoko (9°20′00S–33°45′20E, Tanzania), a maar lake of the East-African Rift. Although some water flux of the hydrologic balance of this lake are easily quantified, only the net flux between the Lake and groundwater can be appreciated. Overpassing this limit requires the establishment of stable isotopic (<sup>18</sup>O and <sup>2</sup>H) budgets. This approach is discussed with a special attention on the atmospheric vapour estimation. Results allow to estimate the underground outflow at 60 % and underground inflow at 25 %, with regard of the total water input. This confirms the importance of the groundwater circulation in volcanic lakes of the East African Rift.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 10","pages":"Pages 617-623"},"PeriodicalIF":0.0,"publicationDate":"2001-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01672-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91756332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
Les phénols de la lignine et le 13C, traceurs de l'origine des matières organiques du sol 木质素酚和13C，土壤有机质来源示踪剂
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-11-30 DOI: 10.1016/S1251-8050(01)01673-1
Claudy Jolivet , Bernard Guillet , Michel Karroum , Francis Andreux , Martial Bernoux , Dominique Arrouays
{"title":"Les phénols de la lignine et le 13C, traceurs de l'origine des matières organiques du sol","authors":"Claudy Jolivet ,&nbsp;Bernard Guillet ,&nbsp;Michel Karroum ,&nbsp;Francis Andreux ,&nbsp;Martial Bernoux ,&nbsp;Dominique Arrouays","doi":"10.1016/S1251-8050(01)01673-1","DOIUrl":"https://doi.org/10.1016/S1251-8050(01)01673-1","url":null,"abstract":"<div><p>In spodosols of Gascony (France), conversion of maritime pine stands into maize cropping leads to an incorporation of maize organic matter, which changed the isotopic (<em>δ</em><sup>13</sup>C) and phenolic signature in <strong>A</strong> and <strong>L</strong> horizons of soil. Hydrolysis of phenol lignin in forests and cultivated soils showed the predominance of vanillic units under forest and the early but moderate incorporation of cinnamic acids. Incorporation of syringic units appeared higher, related to a large maize production of stable syringic phenols. Syringic units represented a long-term marker of maize inputs in soils, whereas vanillic units revealed the degradation of forest organic matter.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 10","pages":"Pages 651-657"},"PeriodicalIF":0.0,"publicationDate":"2001-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01673-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91721242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Modélisation de la morphodynamique d'un profil de plage 海滩剖面的形态动力学建模
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-11-30 DOI: 10.1016/S1251-8050(01)01665-2
Karine Spielmann, Dominique Astruc, Olivier Thual
{"title":"Modélisation de la morphodynamique d'un profil de plage","authors":"Karine Spielmann,&nbsp;Dominique Astruc,&nbsp;Olivier Thual","doi":"10.1016/S1251-8050(01)01665-2","DOIUrl":"10.1016/S1251-8050(01)01665-2","url":null,"abstract":"<div><p>In order to study the wave impact on beach profile morphological changes, we have developed a numerical ‘deterministic’ model. We focus on the sensitivity analysis of various modelling approaches in order to explain their limitations. Validating the model with experimental measurements, we put forward the poor estimation of the bed sediment concentration given by classical formula. We propose a new parameterization relying on a Shields parameter based on the breaking-induced shear-stress.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 10","pages":"Pages 669-675"},"PeriodicalIF":0.0,"publicationDate":"2001-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01665-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87006545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Une coupe de la province volcanique Caraı̈be : premiers résultats de la campagne sismique Casis 2 火山杯全省Caraı̈be:首批Casis 2地震运动的结果。
Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-11-30 DOI: 10.1016/S1251-8050(01)01685-8
Alain Mauffret , Sylvie Leroy , Élia d'Acremont , Agnès Maillard , Bernard Mercier de Lépinay , Antonio Tadeu Dos Reis , Naghieb Miller , Alexandre Nercessian , Roberto Pérez-Vega , Diorys Perez
{"title":"Une coupe de la province volcanique Caraı̈be : premiers résultats de la campagne sismique Casis 2","authors":"Alain Mauffret ,&nbsp;Sylvie Leroy ,&nbsp;Élia d'Acremont ,&nbsp;Agnès Maillard ,&nbsp;Bernard Mercier de Lépinay ,&nbsp;Antonio Tadeu Dos Reis ,&nbsp;Naghieb Miller ,&nbsp;Alexandre Nercessian ,&nbsp;Roberto Pérez-Vega ,&nbsp;Diorys Perez","doi":"10.1016/S1251-8050(01)01685-8","DOIUrl":"10.1016/S1251-8050(01)01685-8","url":null,"abstract":"<div><p>The eastwards motion of the Caribbean plate is supposed to be related to a Cretaceous flip of subduction from eastwards to westwards vergence. However, we do not observe on the seismic profiles recorded during the CASIS 2 cruise any evidence of subduction beneath the Aves Ridge and Nicaragua Rise. Aves volcanic arc has been probably formed after the collision of the Caribbean volcanic plateau as shown by a wedge of volcanic-clastic sediments imaged by the seismic cruise CASIS 2. A recent left-lateral transtensional tectonics is observed in the lower Nicaragua Rise; the Colombia basin might have a motion towards the northeast relative to the rise.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 10","pages":"Pages 659-667"},"PeriodicalIF":0.0,"publicationDate":"2001-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01685-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78979485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
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