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New sedimentological and palynological data from the Yarkand-Fergana Basin(Kyrgyz Tian Shan): Insights on its Mesozoic paleogeographic and tectonic evolution

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Geoscience Frontiers 2021年第1期12卷 183-202页

作者： julien morin Marc Jolivet Dave Shaw Sylvie Bourquin Elena Bataleva Univ Rennes CNRSGeosciences RennesUMR 6118CNRSF-35000RennesFrance Biostratigraphic Associates(UK)Ltd 17 Woodland AvenueNorton GreenStoke on TrentStaffsST68NEUK Research Station of the Russian Academy of Sciences BishkekKyrgyzstan

The Talas Fergana/Karatau Fault,is a major tectonic boundary separating the Kazakh-Turan domain to the west from the Tian Shan domain to the *** the Jurassic,movements along the fault led to the opening of several ***,the Mesozoic kinematics of the fault and the geodynamic mechanism that led to the opening of these basins are largely *** at its southwestern termination,the Yarkand-Fergana Basin is certainly the best exposed and however still poorly *** this study,we provide new sedimentological description of the Jurassic series from the northern part of the Yarkand-Fergana Basin as well as new palynological *** a Middle-Late Triassic period dominated by regional erosion,the onset of sedimentation in the Yarkand-Fergana Basin occurred during the Sinemurian(?)-*** basin opened as a half graben controlled by the Talas Fergana/Karatau Fault and separated from the Fergana Basin by basement *** persisted during the late Pliensbachian-Middle Jurassic,leading to a general widening of the YarkandFergana ***,Late Jurassic-Early Cretaceous renewed tectonic activity in the area led to the inversion of the north Yarkand-Fergana *** Early to Middle Jurassic timing of development of the Yarkand-Fergana Basin suggests that the coeval movements along the Talas Fergana/Karatau Fault are not associated to the collision of the Qiangtang block along the southern margin of *** favor the hypothesis of an opening controlled by transtension related to far field effects of back-arc extension along the Neo-Tethys subduction zone to the west.

关键词： Central Asia Talas Fergana/Karatau Fault Extension Jurassic

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Loon Nest Viability Model: A Performance Indicator for Improving Water-Level Regulation of Large Water Bodies

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Natural Resources 2018年第1期9卷 1-16页

作者： Marianne Bachand julien Hénault Richard Sylvain Martin Steve K. Windels Jean morin Meteorological Service of Canada Environment and Climate Change Canada Québec Canada Département de biologie & Centre d’études nordiques Université Laval Québec Canada Voyageurs National Park International Falls USA

Rule curves dictating target water levels for management have been implemented in several water bodies in North America over the last 70 years or more. Anthropogenic alterations of water levels are known to affect several components of wetland ecosystems. Evaluating the influence of rule curves on biological components with simple performance indicators could help harmonize water level management with wetland integrity. We assessed the potential of using the probability of common loon nest viability as a performance indicator of long-term impacts of rule curves on nesting wetland birds. We analyzed the outcome of rule curves on the probability of loon nest viability in Rainy Lake and Namakan Reservoir, 2 regulated water bodies located along the Ontario-Minnesota border. The analysis was focused on 4 hydrological time series between 1950 and 2013: 2 sets of time series simulating rule curves used to manage the water bodies in the past decades (referred to as the 1970RC and 2000RC), one of the historical measured water levels, and one of computed natural water levels. The probability of loon nest viability under the 1970RC was 2× higher than under natural conditions in both water bodies. The probability was also 2× higher under the 2000RC than under the 1970RC in the Namakan Reservoir but not in Rainy Lake. The rule curves generally improved conditions for nesting loons in both water bodies. The presented performance indicator can be used to evaluate future rule curves before they are implemented in the Rainy-Namakan or other similar systems.

关键词： Gavia immer Namakan Reservoir Nest Viability Performance Indicator Rainy Lake Rule Curves Water Level

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