Results 41 to 50 of about 76,862 (209)
Trans-Atlantic dinoflagellate cyst stratigraphy across the Cenomanian–Turonian (Cretaceous) Stage boundary [PDF]
Journal of Micropalaeontology, 2000 Abstract. The principal palynological proxy for the Cenomanian–Turonian Stage boundary, the top of consistent/common Litosphaeridium siphoniphorum (a dinoflagellate cyst), occurs in Greenhorn Bed 73 at the international stratotype section, west of Pueblo, Colorado, USA.
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Ge-conservación, 2021 The article focused on the multi analytical characterization of unique copper model tools date back to the dynasty Xth, 1st intermediate period (c.2134-2050).
Manal Maher, Yussri Salem
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Estratigrafía de Sr y evolución sedimentaria de los depósitos marinos del Mioceno temprano en el antepaís del norte de la Cuenca Austral (o Magallanes), Argentina [PDF]
, 2015 Early Miocene shallow marine deposits in the region of Lago Posadas-Meseta Belgrano (Argentina) represent part of the “Patagoniense” transgression, an Atlantic marine incursion that flooded large part of Patagonia, including the Austral (foreland) Basin (
Alonso Muruaga, Pablo Joaquin +3 more
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Gradational development of slaty cleavage to schistosity -an example from the Iberian Pyrite Belt, Spain- [PDF]
, 1994 The Iberian Pyrite Belt is an Upper Paleozoic succession which has been divided into the Phyllite-Quartzite Group, the Volcanic-Sliceous Complex and the Culm Group in ascending order from base to the top. The contacts among them are conformable.
Suzuki, shigeyuki
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Belemnite-based strontium, carbon and oxygen isotope stratigraphy of the type area of the Maastrichtian Stage [PDF]
Netherlands Journal of Geosciences - Geologie en Mijnbouw, 2011 AbstractBelemnitellid cephalopods from the Maastrichtian stratotype area (southeast Netherlands) are shown to be comparatively well preserved. Although partial diagenetic alteration has been observed, micromilling techniques have permitted the extraction of pristine belemnite calcite, suitable for the reconstruction of strontium (Sr), oxygen (O) and ...
Vonhof, H.B. +7 more
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The Austral-Magallanes Basin (Southern Patagonia): A synthesis of its stratigraphy and evolution.
Latin American Journal of Sedimentology and Basin Analysis, 2021 The Austral-Magallanes is an oil-producing basin located in southern Argentina and Chile, containing a siliciclastic stratigraphic record ranging from the Late Jurassic to late Cenozoic.
José I. Cuitiño +4 more
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Frontiers in Earth Science, 2022 Small shelly fossils (SSFs) are a useful and critical tool for subdivision and correlation of the Cambrian Terreneuvian stratigraphy. The Maidiping Formation in southern Sichuan is a well-known Terreneuvian lithologic unit with rich SSFs. Here, the upper
Qian Feng +4 more
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Foraminiferal stratigraphy of raised marine deposits, representing isotope stage 5, Prins Karls Forland, western Svalbard [PDF]
Polar Research, 1998 Two raised marine sequences from Prins Karls Forland, western Svalbard, interpreted to have been deposited during part of isotope substage 5e (Eemian) and substage 5a, were studied for foraminifera content. Time constraints are given by 14C ages, infrared stimulated luminescence age estimates and amino acid ratios in subfossil marine molluscs.
Bergsten, Helene +2 more
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Sites of the Early (Archaic) Stage of the Lyalovo Culture on the Upper Don
Археология евразийских степейThe authors put forward the thesis that ceramic materials with combed-denticulated-dotted ornamentation, which previously traditionally belonged to the Late Neolithic Rybnoozersk culture on the Upper Don, are completely similar to pottery assemblages of ...
Roman V. Smol’yaninov +2 more
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Geophysical Research Letters, 2021 We used imaging, laser altimeter and thermal infrared data to map a 0.5 by 0.5° area containing the landing site of the Zhurong rover of the Tianwen‐1 mission.
Jiannan Zhao +7 more
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