Results 131 to 140 of about 31,568 (232)
Frontiers of Biogeography, 2013 Macroecology focuses on ecological questions at broad spatial and temporal scales, providing a statistical description of patterns in species abundance, distribution and diversity.
José Alexandre F. Diniz-Filho +2 more
doaj
Scientific ReportsThe origin and early diversification of ornithopods, a major clade of ornithischian dinosaurs, remain poorly understood, with conflicting phylogenetic hypotheses regarding rootward neornithischian relationships.
Łukasz Czepiński, Daniel Madzia
doaj +1 more source
Fe Oxidation State and Oxygen Isotope Composition of Diverse Metasomatized Peridotite Rocks
Terra Nova, EarlyView.ABSTRACT Metasomatic fluids are thought to be oxidising agents that react with the surrounding mantle rocks, causing changes in the bulk Fe3+/ΣFe, their redox state, and affecting the partitioning of trace elements and the fractionation of O isotopes. Worldwide distributed metasomatized peridotites represent the ideal case study to investigate the role
Federica Benedetti +6 more
wiley +1 more source
Tracking Sediment Mixing Along the Lower Danube River From the Carpathians to the Black Sea
Terra Nova, EarlyView.ABSTRACT We use detrital zircon U–Pb geochronology as a sediment provenance tracer in modern river sands to better understand how tectonic, climatic, and anthropogenic processes modulate sediment transport dynamics of the Carpathians to the Black Sea source to sink system.
Iulian Pojar +5 more
wiley +1 more source
Terra Nova, EarlyView.ABSTRACT This study applies Δ₄₇/U–Pb thermochronology to the Middle Jurassic carbonates exposed in the southeastern margin of the Paris Basin. By integrating clumped isotope analyses and U–Pb dating of diagenetic carbonates, we reconstruct the thermal and exhumation history of the sedimentary succession.
Marta Gasparrini +4 more
wiley +1 more source
Forearc Depressions Develop in Warm Subduction Zones by Underplating‐Induced Crustal Flexure
Terra Nova, EarlyView.ABSTRACT We propose a model for forearc depression formation in warm subduction zones. Forearc depressions overlie some ocean‐continent subduction zones and form between a forearc high and volcanic arc. Forearc highs coincide with 51–91 mGal free‐air gravity anomalies and km‐scale reflector bands in seismic sections, indicating they comprise crust ...
Chuqiao Huang +2 more
wiley +1 more source
Terra Nova, EarlyView.ABSTRACT The flexural profile of a foreland basin is controlled by lower plate strength and the magnitude of (sub)surface loads. Assuming that lower plate strength remains largely constant during flexure, changes in the flexural profile hint at reorganisations of (sub)surface loading.
Lucas H. J. Eskens +2 more
wiley +1 more source
Terra Nova, EarlyView.ABSTRACT The Carboniferous‐Permian Tarija basin of southern Bolivia evolved under major tectonic and climatic influence. The timing of transition from glacially influenced to arid conditions, after the Gondwanide tectonic event, has been based mainly on palynological correlations.
Felipe R. Ferroni +4 more
wiley +1 more source
Expanding the Ichnofacies Model to Tidal Straits: Testing Predictions and Assessing Anomalies
Terra Nova, EarlyView.ABSTRACT Trace fossils are instrumental in facies analysis, but some depositional environments remain underexplored. Cenozoic deposits in Italy have been studied to evaluate the ichnology of tidal straits. These comprise four zones: (1) strait centre, (2) dune‐bedded strait zone, (3) strait end and (4) strait margin.
Luis A. Buatois +6 more
wiley +1 more source