Results 71 to 80 of about 4,741,469 (223)

Contourite erosional and depositional features of the Maastrichtian chalk on Jasmund peninsula (Rügen island, NE Germany)

Sedimentology, EarlyView.
ABSTRACT Seismic‐scale features such as deeply incised submarine valleys and mounded drifts together with ichnological features indicative of discontinuous sedimentation and erosional episodes have recently been documented from the Upper Cretaceous chalk in the southern Baltic Sea area.
Marcel Schlembach, Heiko Hüneke, Mike Reich, Svante Peters, Nele Ahlhaus, Sylvia Weinert, Arwed Gibb   +6 more
wiley   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

Sedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot, Giovanna Della Porta, Mathias Mueller, Fabrizio Berra, Benjamin F. Walter, Aratz Beranoaguirre, Sylvia Riechelmann, Oskar Schramm, Adrian Immenhauser   +8 more
wiley   +1 more source

Early-Devonian intrusive magmatism of the Urals as indicator critical stage Paleozoic history mobile belt

Литосфера, 2015
It is established that during all-Uralian stage of mantle-type magmatism of Early Devonian age (410-393 Ma) the mantle Ordovician-Silurian magmatism was changed by mantle-crustal and crustal types.
G. B. Fershtater
doaj   +2 more sources

Eifelian (Middle Devonian) to Early Frasnian (Late Devonian) conodonts and strata in the Spanish Central Pyrenees: Global correlations and effects of climatic fluctuations in the biota

The interval between the late Eifelian and early Frasnian was marked by significant paleoenvironmental instability, including major evolutionary, eustatic, and biotic events.
Valenzuela Ríos, José Ignacio, Liao Chen, Jau-Chyn   +1 more
core   +1 more source

SEDIMENTATION OF LOCHKOVIAN-LOWER EMSIAN VOLCANOKLASTIC DEPOSITS OF THE WEST-MAGNITOGORSK ZONE OF THE SOUTH URAL

Известия Томского политехнического университета: Инжиниринг георесурсов, 2018
The relevance of research. The Early Devonian stage of formation of the Magnitogorsk island-arc system remains poorly understood, despite the long history of research and rather large amount of data obtained.
doaj   +1 more source

Paleomagnetism of the Upper Devonian rocks of the Andoma Hill [PDF]

Нефтегазовая геология: Теория и практика, 2023
Paleomagnetic research to identify the ancient components of remanent magnetization and to obtain magnetostratigraphic data is a difficult problem for some time intervals, including the Devonian.
Sal'naya N.V.
doaj  

Palinologia e estratigrafia do PZ superior da ZOM, NW e SW de Portugal [PDF]

, 2010
Doutoramento em GeociênciasNeste trabalho descreve-se e interpreta-se a estratigrafia e palinologia de rochas sedimentares e metassedimentos de idade devónica e carbónica aflorantes ao longo da zona de cisalhamento Porto-Tomar, a Sul na Bacia de Santa
Machado, Gil Monteiro Jacinto
core  

Paleomagnetic dating of rocks of the Bolshesyrsky magmatic area of the Minusinsky basin

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
Paleomagnetic dating of the Bolshesyrsky igneous area, a thick intraplate igneous complex of Khakassia, was carried out. The complex has not been dated due to the peculiarities of the stratigraphy and the lack of suitable rocks for applying the methods ...
D.V. Kovalenko, M.V. Buzina
doaj   +1 more source

Middle to upper Devonian (givetian and frasnian) shallow-water carbonates of Western Europe: fades analysis and cyclicity [PDF]

, 1997
The Middle and Upper Devonian (Givetian-Frasnian) shallow-water carbonate facies of western Europe were deposited as a large-scale transgressive succession over continental facies of the Old Red Continent.
Garland, Joanna
core  

Anterior supragnathal of an Early Devonian arthrodire (ANU V244)

, 2016
PLY file of the anterior supragnathal (ASG) of an Early Devonian arthrodire (ANU V244)
Carole Burrow (3274476), Burrow, Carole, Young, Gavin, Yuzhi Hu (3274479), Hu, Yuzhi, Gavin Young (512771)   +5 more
core   +1 more source