Results 61 to 70 of about 4,915 (201)
Übersicht über die Sporenassoziationen (lepidophyta- bis pusilla-Zone) aus dem Unterkarbon der Bohrung Neuenkirchen 2/1973 (Insel Rügen, NE-Deutschland) [PDF]
Es wird die Sporenzonierung für das Tournai (einschließlich der Grenzschichten) der Bohrung Neuenkirchen 2/73 auf der Insel Rügen (NE-Deutschland) vorgelegt – von der lepidophyta-Zone var.
G. Burmann
doaj +3 more sources
ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller +6 more
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Understanding spatiotemporal mismatches between urban expansion and population dynamics is essential for guiding sustainable development in rapidly urbanizing regions.
Fushan Zhang, Chi Duan, Qingling Zhang
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An integrated facies, MS and XRF‐based approach applied to the Tithonian–Berriasian Sidi Khalif Formation (central Tunisia) resolves five Tithonian and eight Berriasian third‐order sequences, showing how mixed carbonate–siliciclastic shelves record coupled eustatic, climatic and tectonic controls and providing a transferable template for similar mud ...
Hamdi Omar, Adnene Lafi, Chokri Yaich
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Disentangling the Regional and Contextual Dependencies of Climate Effects on Global Maize Yield
Abstract Maize is a cornerstone of global food security, yet the effects of interannual climate variability on its yield under varying production contexts remain not fully understood. Using Köppen climate zones, we coupled random forests with Shapley additive explanations to disentangle water‐heat drivers from three perspectives: yield state, cropping ...
Yunmeng Zhao, Chiyuan Miao
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Abstract Forest disturbance effects on peak flows have been debated for decades. Paired‐catchment analysis (PCA) has been criticized in relation to the long‐term stability of pre‐harvest regressions and the inability of chronological pairing to characterize changes in event frequency.
R. Dan Moore, Kim Green, Cydne Potter
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The study of "Crioceras" barremense Kilian was undertaken as a part of the revision of the Hemihoplitidae. This species was considered "classic" and has been used as the index of an Upper Barremian subzone; this usage raises a number of problems.
Bert Didier +3 more
doaj
A quantitative biostratigraphical study was performed on the foraminiferal assemblages from 15 stratigraphic sections of the Epiligurian Succession (Middle Eocene-Early Miocene, Northern Apennines, Italy).
NICOLETTA MANCIN, CAMILLA PIRINI
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Integrated detrital zircon U–Pb, Nd–Sr isotopes and thermochronology record western Indian‐margin provenance reorganisation. Late Cretaceous–Palaeocene sediment supply was Indian‐affinity; Asian‐affinity input appeared across the Palaeocene–Eocene transition (~56.5–54.7 Ma), suggesting India–Asia collision was underway, while mixed provenance persisted
Nowrad Ali +8 more
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Ammonite biostratigraphy of the Aalenian and Lower Bajocian (Middle Jurassic) near Böttstein (Canton Aargau, Northern Switzerland) [PDF]
A stratigraphic section exposing strata from the upper boundary of the Opalinus Clay to the middle of the Passwang Formation (Middle Jurassic) is described from the abandoned Schmidberg clay pit near Böttstein in the Aare Valley (Aargau, Jura, northern ...
Volker Dietze +3 more
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