Results 191 to 200 of about 12,589 (253)

A new caudipterid from the Lower Cretaceous of China with information on the evolution of the manus of Oviraptorosauria. [PDF]

Sci Rep, 2019
Qiu R, Wang X, Wang Q, Li N, Zhang J, Ma Y.   +5 more
europepmc   +1 more source

Siliceous sponges or seawater as a silicon source? Tracing silicon burial pathways of the Upper Cretaceous opal‐CT deposits using δ30Si and δ7Li

Sedimentology, EarlyView.
ABSTRACT Classical models of formation of sedimentary siliceous rocks (flint, chert, opoka) commonly assume that the Cretaceous marine silicon (Si) cycle was primarily biologically controlled, broadly analogous to the modern ocean. In this framework, siliceous sponges are regarded as the principal source of dissolved silica (dSi) to sediment porewaters,
Agata Jurkowska, Ewa Świerczewska‐Gładysz, Marek Szczerba, Tomáš Magna, Szymon Kowalik Filipowicz   +4 more
wiley   +1 more source

U–Pb Dating of Cambrian Magmatism in the Pinerolo‐Sanfront Unit, Dora‐Maira Massif (Western Alps)

Terra Nova, EarlyView.
ABSTRACT The Pinerolo‐Sanfront Unit (PSU), the structurally lowest tectonic unit of the Dora‐Maira Massif (Western Alps), has been regarded as a monocyclic unit composed of Permo‐Carboniferous sediments and Permian granitoids that were metamorphosed during the Alpine orogeny.
Francesco De Cesari, Davide Dana, Salvatore Iaccarino, Chiara Montomoli, Alberto Corno, Daniela Rubatto, Rodolfo Carosi   +6 more
wiley   +1 more source

Global stratigraphic dataset composing LOK2016CS database: Biostratigraphic ranges of uppermost Tithonian-Hauterivian bioevents (Lower Cretaceous): Tables 1 and 2. [PDF]

Data Brief, 2019
Scott RW.
europepmc   +1 more source

A diverse mammal-dominated, footprint assemblage from wetland deposits in the Lower Cretaceous of Maryland. [PDF]

Sci Rep, 2018
Stanford R, Lockley MG, Tucker C, Godfrey S, Stanford SM.   +4 more
europepmc   +1 more source

The sinemydid turtle Ordosemys from the Lower Cretaceous Mengyin Formation of Shandong, China and its implication for the age of the Luohandong Formation of the Ordos Basin. [PDF]

PeerJ, 2019
Li DQ, Zhou CF, Li L, Yang JT, Li L, Rabi M.   +5 more
europepmc   +1 more source

Coupled nickel and molybdenum isotopes quantify the evolution of the ocean system since the Late Cretaceous. [PDF]

Sci Adv
Sun M, Archer C, Scholz F, Sweere T, Vance D.   +4 more
europepmc   +1 more source

Co-evolution of wildfires and early <i>Sphagnum</i>-peatlands near the Cretaceous South Pole. [PDF]

Commun Earth Environ
Salzmann U, Bauersachs T, Klages JP, Gerschel H, Müller J, Heinz I, Hillenbrand CD, Bohaty SM, Bickert T, Titschack J, Kaschuro S, McKay J, Nehrke G, Pälike H, Science Team of Expedition PS104.   +14 more
europepmc   +1 more source

LOWER CRETACEOUS STRATIGRAPHY IN SOUTHEASTERN ARIZONA

, 1949
openaire   +2 more sources

Gas Injection in Lower Cretaceous Reservoirs

, 2017
Paterson, Duncan, Yan, Wei; id_orcid 0000-0002-8810-2479, Stenby, Erling H.; id_orcid 0000-0002-2296-069X   +2 more
openaire   +1 more source