Results 21 to 30 of about 3,850 (263)
Shelly fossils from the lower Cambrian White Point Conglomerate, Kangaroo Island, South Australia [PDF]
Acta Palaeontologica Polonica, 2019 The lower Cambrian (Series 2) White Point Conglomerate (WPC) on Kangaroo Island, South Australia contains exotic clasts representing a diverse array of lithologies, including metamorphics, chert, sandstone, and abundant carbonates, notably archaeocyath ...
Marissa J. Betts +5 more
doaj +1 more source
Geosciences, 2022 The upper Unstrut River is located in Germany at the modern Central European climate boundary of Cfb and Dfb climate. The river drains a loess landscape, which has experienced important environmental changes throughout the last 12,000 years.
André Kirchner +4 more
doaj +1 more source
Running across the Silurian/Devonian Boundary along Northern Gondwana: A Conodont Perspective
Geosciences, 2022 The Global Stratotype Section and Point (GSSP) of the Silurian/Devonian boundary, Lower Devonian Series and Lochkovian Stage was formally placed in 1977 at Klonk, in the Czech Republic, at the first appearance of the graptolite Uncinatograptus uniformis ...
Annalisa Ferretti +3 more
doaj +1 more source
Papers in Palaeontology, 2022 New acritarch data from the Kistedalen Formation based on two sections with continuous exposure enable us to establish the most detailed Miaolingian acritarch biozonation in Baltica to date.
T. Palacios +7 more
semanticscholar +1 more source
ASSESSING THE CHRONOSTRATIGRAPHY OF EL MIRÓN CAVE, CANTABRIAN SPAIN
Radiocarbon: An International Journal of Cosmogenic Isotope Research, 2021 El Mirón is an important archaeological cave site in Cantabria (Spain) with a stratigraphy covering the late Middle Paleolithic to the Modern Period. The Magdalenian levels are especially rich in artifacts, faunal remains, and features, and included the ...
Rachel J A Hopkins +2 more
semanticscholar +1 more source
Chronostratigraphy and geochronology: A proposed realignment [PDF]
GSA Today, 2013 We propose a realignment of the terms geochronology and chronostratigraphy that brings them broadly into line with current use, while simultaneously resolving the debate over whether the Geological Time Scale should have a “single” or “dual” hierarchy of units: Both parallel sets of units are retained, although there remains the option to adopt ...
Zalasiewicz, Jan +6 more
openaire +4 more sources
Journal of Applied Sciences and Environmental Management, 2022 This study employs the tool of sequence stratigraphy to evaluate Day Field, in the Onshore Niger Delta of Nigeria for hydrocarbon predictions using six (6) well logs displayed at standard scales to enhance log trends for lithologic and stratal package ...
T. S. Alege
doaj +1 more source
The First 40 Million Years of Planktonic Foraminifera
Geosciences, 2021 We provide a biochronology of Jurassic planktonic foramininfera, using first order linkage to ammonite and nannofossil stratigraphy and geochronology. This enigmatic and understudied group of microfossils occurred from middle Toarcian through Tithonian ...
Felix Gradstein +2 more
doaj +1 more source
The Lapland greenstone belt: Stratigraphic and depositional features in northern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 The Lapland greenstone belt formed in a continental environment, as a result of rifting of the 3.1—3.0 Ga Saamian craton. The basin subsided to a depth of five kilometres between 3.0—2.5 Ga and contains a sequence which is subdivided into Lower, Middle ...
M. Saverikko
doaj +1 more source
Scientific Reports, 2020 Present knowledge of Late Triassic tetrapod evolution, including the rise of dinosaurs, relies heavily on the fossil-rich continental deposits of South America, their precise depositional histories and correlations. We report on an extended succession of
J. Desojo +10 more
semanticscholar +1 more source