2007
DOI: 10.7202/032906ar
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Morphogenèse des barrages de travertin de Coal River Springs, sud-est du Territoire du Yukon

Abstract: RÉSUMÉL'étude de travertins, situés sur la rive gauche de la Coal River (SE du Yukon), permet de mieux comprendre la genèse de ces dépôts par leur description morphologique, soutenue d'observations hydrologiques et microfaciologiques. L'analyse morphologique révèle que les barrages de travertin sont des phytohermes, à croissance discontinue attribuable aux variations de débit. Une forme nouvelle appelée « encorbellement inverse » est décrite et correspond à une croissance en ea… Show more

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Cited by 10 publications
(3 citation statements)
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“…Carbonate spring deposits are usually explained according to two depositional models: (i) a tufa depositional model (Freytet & Plet, ; Janssen et al ., ; Arenas et al ., , ; Pedley et al ., , ; Lojen et al ., ; Rainey & Jones, ; Pedley, ; Vazquez‐Urbez et al ., , ; Manzo et al ., ); and (ii) a travertine depositional model (Chafetz & Folk, ; Altunel & Hancock, ; Guo & Riding, , ; Fouke, , ; Chafetz & Guidry, ; Pentecost, ; Brogi & Capezzuoli, ; Brogi et al ., ; Rodriguez‐Berriguete et al ., ). The first model is characterized by the presence of numerous phytoherms and precipitation from cold spring waters (Geurts et al ., ; Pedley, ; Vazquez‐Urbez et al ., ). The travertine model is different, because of the presence of terraces formed by crystalline dams and flat pool settings composed by typical shrub lithofacies.…”
Section: Discussionmentioning
confidence: 99%
“…Carbonate spring deposits are usually explained according to two depositional models: (i) a tufa depositional model (Freytet & Plet, ; Janssen et al ., ; Arenas et al ., , ; Pedley et al ., , ; Lojen et al ., ; Rainey & Jones, ; Pedley, ; Vazquez‐Urbez et al ., , ; Manzo et al ., ); and (ii) a travertine depositional model (Chafetz & Folk, ; Altunel & Hancock, ; Guo & Riding, , ; Fouke, , ; Chafetz & Guidry, ; Pentecost, ; Brogi & Capezzuoli, ; Brogi et al ., ; Rodriguez‐Berriguete et al ., ). The first model is characterized by the presence of numerous phytoherms and precipitation from cold spring waters (Geurts et al ., ; Pedley, ; Vazquez‐Urbez et al ., ). The travertine model is different, because of the presence of terraces formed by crystalline dams and flat pool settings composed by typical shrub lithofacies.…”
Section: Discussionmentioning
confidence: 99%
“…The typesequence (Figs. 2a,b and 3) is represented by 4-6 m of phytoclastic sands, silts and sometimes gravels with intercalated travertine levels of different thickness (from 50 cm up to 2 m and more); the geometry of such sequences belongs to a so-called ''riffles and pools'' system (Chafetz and Folk, 1984;Vaudour, 1986;Geurts et al, 1992;Farabollini et al, 2005;Pentecost, 2005), typical of a river with variable gradient and steps.…”
Section: Regional Setting and Previous Studiesmentioning
confidence: 98%
“…1-5E, F). Micro-terraces are common facies of travertine formed nearby springs (Geurts et al, 1992;Pentecost, 2005). Depending on the distance between dams, the steepness of the slope can be estimated (Pentecost, 2005).…”
Section: Depositional Environment Of the Cukor Quarrymentioning
confidence: 99%